CN105781497B - Seabed natural gas hydrate collection system - Google Patents
Seabed natural gas hydrate collection system Download PDFInfo
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- CN105781497B CN105781497B CN201610170980.9A CN201610170980A CN105781497B CN 105781497 B CN105781497 B CN 105781497B CN 201610170980 A CN201610170980 A CN 201610170980A CN 105781497 B CN105781497 B CN 105781497B
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- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims abstract description 73
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 544
- 239000003345 natural gas Substances 0.000 claims abstract description 270
- 239000007789 gas Substances 0.000 claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 33
- 238000004873 anchoring Methods 0.000 claims abstract description 30
- 239000001301 oxygen Substances 0.000 claims description 84
- 229910052760 oxygen Inorganic materials 0.000 claims description 84
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 71
- 230000001105 regulatory effect Effects 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 17
- 238000012806 monitoring device Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 20
- 238000000354 decomposition reaction Methods 0.000 abstract description 16
- 230000001276 controlling effect Effects 0.000 description 14
- 239000013535 sea water Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000005065 mining Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- -1 natural gas hydrates Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a seabed natural gas hydrate collecting device, and belongs to the technical field of natural gas collection. The natural gas collecting device comprises a mother ship and an internally-hollow natural gas collecting cover, wherein the mother ship is provided with a natural gas collecting device, the natural gas collecting device is connected with the top of the natural gas collecting cover through a gas production pipeline, the natural gas collecting cover is connected to the bottom of the mother ship through a riser, and the gas production pipeline is arranged in the riser; the anchoring system is arranged around the bottom of the natural gas collecting cover, the pressure adjusting system is arranged at the bottom of the natural gas collecting cover, the propelling system is arranged on the outer wall of the natural gas collecting cover, the density adjusting system is configured on the natural gas collecting cover, and the temperature adjusting system and the stirring system are arranged in the natural gas collecting cover. The invention mainly solves the problem that natural gas hydrate of the seabed mud bed cannot escape and leak in the process of decomposition, collection and exploitation.
Description
Technical Field
The invention relates to the technical field of natural gas acquisition, in particular to a submarine natural gas hydrate acquisition technology.
Background
The seabed natural gas hydrate is a crystal formed by combining methane gas and water molecules under the low-temperature high-pressure environment of the seabed, is a clean energy with huge reserves, and is hopeful to replace petroleum and coal to become a main energy. The natural gas hydrate is widely distributed in a seabed sedimentary layer, has the characteristics of large reserves, weak cementation and poor stability, and can cause the massive decomposition, gasification and free release of the seabed natural gas hydrate once the temperature and pressure conditions of the area are changed.
Since natural gas hydrate is mainly decomposed into methane gas and water, however, methane gas is a greenhouse gas, and release of a large amount of methane gas into the atmosphere causes a greenhouse effect and serious damage to the environment. How to ensure that natural gas does not leak and diffuse in the process of exploiting the seabed natural gas hydrate and how to decompose the natural gas hydrate efficiently is a main research direction of the seabed natural gas hydrate mineral exploitation at present.
In the existing natural gas hydrate mining technology, a natural gas hydrate mineral reserve of a seabed tool is generally converted into gas and water by a depressurization method, a heat injection method or a chemical reagent injection method, the converted gas is collected and is produced by an underwater production facility or a floating production facility, no mature submarine natural gas hydrate mining method and system are formally put into commercial operation at present, and the mining of experimental properties is carried out in countries such as the United states, Japan and the like.
The main reasons are that the existing mining methods are complex, high in cost, lack of controllability and operability, easily cause methane gas leakage, cause environmental pollution and atmospheric greenhouse effect, have mining efficiency which cannot meet the minimum requirements of industrial development, are in the laboratory exploration stage and cannot be put into commercial operation. Therefore, an environment-friendly, economical and efficient exploitation system is needed to realize exploitation of the seabed natural gas hydrate.
Disclosure of Invention
The invention aims to: aiming at the existing problems, the invention provides a seabed natural gas hydrate acquisition device, which mainly solves the problems that the natural gas hydrate of a seabed mud bed cannot escape and leak in the process of decomposition, collection and exploitation; therefore, the invention can ensure stable production by controlling the density, the pressure and the temperature, has convenient natural gas collection and high collection efficiency, and can be repeatedly used for many times.
The technical scheme adopted by the invention is as follows:
the seabed natural gas hydrate collecting device comprises a hollow natural gas collecting cover, wherein an anchoring system is arranged on the periphery of the bottom of the natural gas collecting cover, a pressure regulating system is arranged at the bottom of the natural gas collecting cover, the natural gas collecting cover is provided with a density regulating system, a temperature regulating system and a stirring system are arranged in the natural gas collecting cover, a propelling system is arranged on the outer wall of the natural gas collecting cover, the natural gas collecting cover is connected to the bottom of a mother ship through a water-proof pipe, a gas production pipeline penetrates through the water-proof pipe, the top of the natural gas collecting cover is connected to a natural gas collecting device through the gas production pipeline, and the natural gas collecting device is arranged on the mother ship.
Due to the above structure, the mother ship is used for the operation and control of the operator on the sea surface. The natural gas collecting cover can cover the seabed mud bed of the designated area, seal the seabed mud bed of the designated area, collect the natural gas in the designated area and transmit the natural gas to the natural gas collecting device on the mother ship for storage through the natural gas production pipeline. The marine riser is used for placing the gas production pipeline, the air pressure pipeline, the oxygen supply pipeline, the cable and the like in the marine riser, so that the marine riser is prevented from being corroded by seawater, and the service life of the marine riser is ensured. The anchoring system is arranged around the bottom of the natural gas collecting cover, and the collecting cover can be hermetically fixed on a seabed mud bed, so that leakage in the natural gas collecting process is ensured. The pressure regulating system can discharge the liquid in the collecting cover, so that negative pressure is formed in the closed collecting cover, the natural gas hydrate in the seabed mud bed is promoted to be decomposed, and the exploitation of the seabed natural gas hydrate is facilitated. The stirring system can stir the seabed mud bed through the stirring system after a certain time of collection in a designated area, so as to promote the decomposition of deep hydrates of the seabed mud bed. And the propulsion system can be used for finely adjusting the collecting cover when the natural gas collecting cover is lowered to a specified area so as to ensure the accurate positioning of the collecting cover. And the density adjusting system adjusts the density of the natural gas collecting cover, so that the lifting and lowering of the collecting cover are controlled. The invention mainly solves the problem that the natural gas hydrate of the seabed mud bed can not escape and leak in the process of decomposition, collection and exploitation, breaks through the conventional thinking mode, skillfully utilizes pressure regulation to form negative pressure and increases the temperature of a temperature regulation system to promote the decomposition of the natural gas hydrate of the seabed mud bed, is beneficial to the exploitation of the seabed natural gas hydrate, greatly improves the collection rate of the natural gas, and provides a new direction for the exploitation of the seabed natural gas hydrate; therefore, the invention can ensure stable production by controlling the density, the pressure and the temperature, has convenient natural gas collection and high collection efficiency, and can be repeatedly used for many times.
According to the seabed natural gas hydrate collecting device, the natural gas collecting cover comprises a shell, a top platform, a baffle and a hanging ring, the shell is of a hollow pyramid structure, the top of the shell is provided with the top platform, and the bottom edge of the shell is connected with a circle of annular baffle.
Due to the structure, the hollow shell with the pyramid-shaped structure is convenient to produce and manufacture, the structure is more reliable, natural gas can be concentrated on the inner top of the shell, and weather collection is facilitated. A buoyancy module can be arranged between the inner shell and the outer shell, so that the whole collecting cover is more compact in structure; the top platform is used for connecting the marine riser, and is convenient for the mother ship to be connected with the collecting cover. The annular baffle at the bottom edge of the shell can seal the bottom of the collecting cover and the seabed mud bed, so that negative pressure can be formed in the collecting cover, the natural gas hydrate of the seabed mud bed is decomposed, and exploitation of the seabed natural gas hydrate is facilitated. Rings, on the one hand can be used to lift by crane the cover of collecting, and on the other hand can be used to connect floated buoyancy module, improves the controllability to collecting cover buoyancy.
The invention relates to a seabed natural gas hydrate collecting device, wherein a density adjusting system comprises a buoyancy module, a pressure supply module and a gas pressure pipeline; the mother ship is provided with a pressure supply module; the natural gas collecting cover is of a hollow pyramid structure, a plurality of buoyancy modules are arranged between an inner shell and an outer shell of the natural gas collecting cover, each buoyancy module comprises a sealed hollow box body, an electronic liquid level meter is arranged in each box body, a drain pipe and an air inlet pipe which are communicated with the inside and the outside are arranged on each box body, all the air inlet pipes are connected to an air pressure pipeline in parallel, and the air pressure pipeline is fixed on a shell of each shell and penetrates through a water-proof pipe to be connected to a pressure supply module.
Due to the structure, the density adjusting system generates pressure gas through the pressure supply module and supplies the pressure gas into the box body of the buoyancy module through the air pressure pipeline, so that water in the box body can be discharged, the density of the collecting cover is reduced, and the collecting cover is lifted; on the contrary, when the collecting cover is lowered, the pressure gas in the box body can be discharged through controlling, the density of the collecting cover is increased when seawater enters the box body, and the collecting cover is lowered to the seabed mud bed. Locate all buoyancy modules and collect between the inside and outside casing of cover to make the holistic structure of cover more compact simpler, and collect the cover and be difficult for receiving external environment's influence and produce the removal, more do benefit to transportation and save.
The invention relates to a seabed natural gas hydrate collecting device, wherein a density adjusting system comprises a buoyancy module, a pressure supply module and a gas pressure pipeline; the mother ship is provided with a pressure supply module; the natural gas collecting cover is of a hollow pyramid structure, a plurality of buoyancy modules are arranged on the outer wall of the natural gas collecting cover and comprise a sealed hollow box body, an electronic liquid level meter is arranged in the box body, a water discharging pipe and an air inlet pipe which are communicated with the inside and the outside are arranged on the box body, all the air inlet pipes are connected to an air pressure pipeline in parallel, and the air pressure pipeline is fixed on the outer wall of the shell and penetrates through the water-resisting pipe to be connected to the pressure supply module.
Due to the structure, all the buoyancy modules are arranged on the outer wall of the collecting cover, so that the buoyancy modules are convenient to mount and fix, and the collecting cover is not easily influenced by the external environment to move, thereby being more beneficial to transportation and storage; in addition, all buoyancy modules are arranged on the outer wall of the collecting cover, so that the influence and control on the buoyancy modules on the collecting cover through buoyancy are more accurate.
According to the seabed natural gas hydrate collecting device, the density adjusting system is arranged on the plurality of buoyancy modules outside the natural gas collecting cover, the buoyancy modules are connected to the hanging rings on the outer wall of the natural gas collecting cover through cables, the buoyancy modules are sealed hollow box bodies, hanging rings are arranged at the bottoms of the buoyancy modules, drain pipes communicated with the inside and the outside of the buoyancy modules are arranged at the tops of the buoyancy modules, and a gas compressor capable of being remotely and wirelessly controlled and an air bag connected with the gas compressor are arranged inside the buoyancy modules.
Due to the structure, the volume and the weight of the natural gas collecting cover can be reduced by the aid of the buoyancy modules connected with the natural gas collecting cover through the cables, so that production and transportation costs of the natural gas collecting cover are reduced, the buoyancy modules are connected in an external connection mode, monitoring and management of the buoyancy modules are facilitated, the density of the whole natural gas collecting cover is controlled by the size of the air bag, and when the air bag is increased, the density of water discharged from the box body is reduced, so that the density of the collecting cover is reduced; when the air bag is reduced, the density of water entering the box body from the outside of the box body is increased, and the collecting cover is lowered to the seabed mud bed; the size of the air bag is controlled by the air compressor, and the air compressor is remotely and wirelessly controlled, so that the control is more convenient and faster.
The seabed natural gas hydrate collecting device comprises an oxygen supply pipeline, an oxygen supply device and heat generators, wherein the oxygen supply device is arranged on a mother ship and is connected with the oxygen supply pipeline, the oxygen supply pipeline penetrates through a water-stop pipe to be connected to the interior of a natural gas collecting cover, the part of the oxygen supply pipeline, which is positioned in the natural gas collecting cover, is spirally arranged, and the heat generators are fixed on the spiral part of the oxygen supply pipeline.
Due to the structure, the oxygen supply device generates oxygen, the oxygen is supplied to the heat generator through the oxygen supply pipeline, the oxygen reacts with the natural gas in the heat generator, the generated heat improves the internal temperature of the natural gas collecting cover, and the decomposition of the natural gas hydrate in the seabed mud bed is facilitated. Wherein the oxygen suppliment pipeline is located the inside part of natural gas collection cover and is the heliciform and arranges to more can satisfy and collect the heating of cover regional interior at utmost, thereby make and collect the interior even intensification of cover whole region, avoid the too big natural gas that brings of local difference in temperature to gather and take place dangerous technical problem.
The seabed natural gas hydrate collecting device comprises a heating device and a support, wherein a plurality of supports are arranged in parallel in a natural gas collecting cover, a plurality of heating devices are fixed on any support, the heating devices are connected to a cable, and the cable penetrates through a marine riser and is connected to a control center of a mother ship.
Wherein a plurality of side-by-side brackets are arranged in the natural gas collecting cover, and the brackets are installed and fixed on the inner wall of the collecting cover, so that the connection of the collecting cover is more warm; in addition on the one hand the support is arranged side by side in collecting the cover, make to collect the cover and have the support on vertical equipartition, and all design has heating device on every support, when collecting in the cover temperature low excessively, accessible electrical heating's mode is to collecting in the cover to the temperature that makes to collect the cover inside is even, thereby avoids collecting local high temperature in the cover, forms great difference in temperature, causes the natural gas inflation pressure increase in the twinkling of an eye, and the dangerous accident that brings ensures production safety. And the control center on the mother ship controls the ship through a cable, so that the control is more convenient, quicker and more reliable, and the operation is more simple and convenient.
The seabed natural gas hydrate collecting device comprises a temperature adjusting system, a heat supply device, a heat supply pipeline and heat exchangers, wherein the heat supply device is arranged on a mother ship, the heat supply device is connected with the heat supply pipeline, the heat supply pipeline penetrates through a water-stop pipe to be connected with the heat exchangers in a shell, and the heat exchangers are fixed on the inner wall of the shell and are connected with the heat supply pipeline through valves.
The inner wall of the natural gas collecting cover is fixed with a plurality of heat exchangers, the heat exchangers are connected to a heat supply device through a heat supply pipeline, it can be seen that heat energy can be directly provided for the heat exchangers in the natural gas collecting cover through the heat supply device, the heat energy is transmitted to the heat exchangers through the heat supply pipeline, the heat exchangers carry out heat exchange on the inner wall of the natural gas collecting cover, the heat energy is transmitted into the natural gas collecting cover, when the temperature in the collecting cover is too low, the heat energy can be transmitted to the heat exchangers in the collecting cover through the heat supply device, the heat energy is subjected to heat exchange on the inner wall of the collecting cover, the whole collecting cover and the heat energy in the collecting cover are uniformly distributed, the phenomenon that the local temperature in the collecting cover is too high is avoided, a large temperature difference is formed, the instant.
The seabed natural gas hydrate collecting device comprises a temperature adjusting system, a heat supply system, a heat exchanger and a water return pipeline, wherein the heat supply system is arranged on a mother ship, the heat supply system is connected with the heat supply pipeline, the heat supply pipeline penetrates through a water-resisting pipe to the interior of a natural gas collecting cover, a plurality of branch pipelines connected with the heat supply pipeline are arranged in the natural gas collecting cover, and a plurality of heat exchangers are arranged on the branch pipelines; the branch pipeline is of a frame structure with the same shape as the natural gas collecting cover, the branch pipeline is connected with a water return pipeline, and the water return pipeline penetrates through the marine riser and is connected to a heat supply device on the mother ship.
Wherein temperature regulation system mainly used is adjusted collecting the inside temperature of cover, when the inside temperature of cover is collected to natural gas crosses low, usable heating device passes through the heating pipeline and collects the interior heat supply water of cover to the natural gas, make hydrothermal energy transfer to the heating pipeline in the cover is collected to the natural gas, when hot water reaches the cover is collected to the natural gas and enters into each branch pipeline through the reposition of redundant personnel, reentrant heat exchanger is in, heat exchanger releases the heat of hot water in the cover is collected to the natural gas, thereby improve the temperature in the cover is collected to the natural gas, ensure the normal collection operation of natural gas, hot water after the heat exchange returns to heating device through the return water pipeline, thereby form circulation repeatedly usable. Wherein the branch pipeline is the frame construction the same with the cover shape is collected to the natural gas, makes whole collection cover and inside heat energy distribution even to avoid collecting the cover in the local high temperature, form great difference in temperature, cause the natural gas in the twinkling of an eye expansion pressure increase in the twinkling of an eye, and the dangerous accident that brings ensures production safety.
According to the seabed natural gas hydrate collecting device, the temperature adjusting system comprises an oxygen supply device, an oxygen supply pipeline and an oxygen heater, the oxygen supply device is arranged on the mother ship and connected with the oxygen supply pipeline, the oxygen supply pipeline penetrates through a water-stop pipe to be connected to the inside of the shell, and the water-stop pipe is connected with the oxygen heater.
According to the seabed natural gas hydrate collecting device, the pressure adjusting system is arranged at the bottom of the natural gas collecting cover and comprises the submersible pump and the water suction box, the submersible pump is communicated with the water suction box in the natural gas collecting cover through the water inlet hose, and the submersible pump is communicated with the outside of the natural gas collecting cover through the water outlet pipe.
Due to the structure, the pressure adjusting system can discharge seawater in the collecting cover to the outside of the collecting cover through the water inlet hose and the submersible pump through the water suction box, so that negative pressure is formed in the collecting cover, the decomposition of natural gas hydrate in seabed mud bed is facilitated, the exploitation of seabed natural gas hydrate is facilitated, and the natural gas collecting rate is greatly improved; meanwhile, the pressure regulating system can also ensure that the internal pressure of the natural gas collecting cover is stable.
According to the seabed natural gas hydrate collecting device, the anchoring system is arranged around the bottom of the natural gas collecting cover and comprises a screw rod, a motor, a transmission device and a closed anchoring shell, the anchoring shell is fixed on the upper portion of the baffle, the motor is fixed in the anchoring shell, the motor is connected with the transmission device and drives the screw rod to rotate, and the screw rod penetrates out of the bottom of the anchoring shell.
Because above-mentioned structure, usable motor passes through transmission control screw rod, stretches into the seabed mud bed with the screw rod, will collect the cover and be fixed in on the seabed mud bed, ensures to collect the leakproofness and the stability of cover, avoids seabed environmental factor to the influence of collecting the cover to can avoid effectively decomposing the in-process of collecting and exploiting, the loss of natural gas and the problem of revealing.
According to the seabed natural gas hydrate collecting device, the stirring system is arranged on the lower side in the natural gas collecting cover and comprises the travelling crane and the water jet device, the travelling crane is fixed on the inner wall of the shell, and the water jet device is installed on the travelling crane and can move along with the travelling crane.
Due to the structure, after the natural gas hydrate in the same appointed seabed area is collected for a certain time, the stirring system is started, the water jet device is controlled to aim at the seabed mud bed and spray high-pressure water flow, the seabed mud bed is stirred to promote the decomposition of the deep hydrate, the exploitation of the seabed natural gas hydrate is facilitated, and the natural gas collection rate is greatly improved.
According to the seabed natural gas hydrate collecting device, a gas production pipeline, an air pressure pipeline, an oxygen supply pipeline and a cable penetrate through a water-resisting pipe; wherein one end of the gas production pipeline is positioned on a platform at the top of the natural gas collecting cover and communicated with the interior of the natural gas collecting cover, and the other end of the gas production pipeline is positioned on a mother ship and communicated with the natural gas collecting and storing device.
The seabed natural gas hydrate collecting device comprises a carrying platform, a propeller thruster and a motor, wherein the carrying platform is fixed in the middle of the outer side of a natural gas collecting cover, and the motor is connected with the propeller thruster and is arranged on the carrying platform.
Due to the structure, when the collecting cover is lowered to be close to the preset position, the propulsion system can be started to finely adjust the position of the natural gas collecting cover, the collecting cover can be ensured to reach the preset position, and the collection of the natural gas in the preset area is facilitated.
According to the seabed natural gas hydrate collecting device, the monitoring system is arranged in the natural gas collecting cover and comprises a temperature and pressure monitoring device and a shell stress monitoring device, the temperature and pressure monitoring device is arranged in a platform at the top of the natural gas collecting cover, and the shell stress monitoring devices are arranged outside a shell of the natural gas collecting cover; the monitoring system, the propelling system, the pressure regulating system, the anchoring system, the stirring system, the temperature regulating system and the density regulating system are respectively connected to a control center through cables, and the control center is arranged on the mother ship.
Due to the structure, the monitoring system can monitor the pressure value and the temperature value in and on the collecting cover in an implementation manner, so that the collecting cover can be monitored in real time, the danger caused by overlarge pressure on the natural gas collecting cover is avoided, and the safety and reliability of operation are ensured; or the natural gas can not be collected at too low temperature, so that the collection rate of the natural gas is improved.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention mainly solves the problem that the natural gas hydrate of the seabed mud bed cannot escape and leak in the process of decomposition, collection and exploitation, breaks through the conventional thinking mode, skillfully utilizes pressure regulation to form negative pressure and increases the temperature of a temperature regulation system to promote the decomposition of the natural gas hydrate of the seabed mud bed, is beneficial to the exploitation of the seabed natural gas hydrate, greatly improves the natural gas collection rate, and provides a new direction for the exploitation of the seabed natural gas hydrate.
2. The invention can ensure stable production by controlling the density, the pressure and the temperature, has convenient natural gas collection, high collection efficiency, repeated use, novel conception, ingenious structure and long service life, can be widely used for collecting the natural gas at the seabed, has wide application range and is suitable for popularization and application.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 to 12 are schematic views of embodiment 1 to embodiment 12, respectively;
FIG. 13 is a schematic structural view of the buoyancy module of examples 1, 4, 7 and 10;
FIG. 14 is a schematic structural view of the buoyancy module of examples 2, 5, 8 and 11;
figure 15 is a schematic diagram of the construction of the buoyancy module of examples 3, 6, 9 and 12.
Wherein common reference numerals of figures 1 to 12 are: 1-natural gas collecting cover, 101-shell, 102-top platform, 103-baffle, 104-lifting ring; 3-pressure regulating system, 301-submersible pump, 302-suction box; 5-mother ship, 6-propulsion system, 7-natural gas storage device, 8-anchoring system, 801-screw, 802-motor, 803-transmission device; 9-stirring system, 10-monitoring system, 12-gas production pipeline and 13-water-stop pipe.
The different reference numerals in fig. 1 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203, 11-pneumatic pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207 electronic liquid level meter; 4-temperature regulating system, 401-oxygen supply pipeline, 402-oxygen supply device and 403-heat generator.
The different reference numerals in fig. 2 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203, 11-pneumatic pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207-electronic liquid level meter; 4-temperature regulating system, 401-oxygen supply pipeline, 402-oxygen supply device and 403-heat generator.
The different reference numbers in fig. 3 are: 2-density adjusting system, 201-buoyancy module, 202-compressor, 203-air bag, 204-drain pipe; 4-temperature regulating system, 401-oxygen supply pipeline, 402-oxygen supply device and 403-heat generator.
The different reference numerals in fig. 4 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203-air pressure pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207 electronic liquid level meter; 4-temperature regulating system, 401-heating device, 402-stent.
The different reference numbers in fig. 5 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203, 11-pneumatic pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207 electronic liquid level meter; 4-temperature regulating system, 401-heating device, 402-stent.
The different reference numbers in fig. 6 are: 2-density adjusting system, 201-buoyancy module, 202-compressor, 203-air bag, 204-drain pipe; 4-temperature regulating system, 401-heating device, 402-stent.
The different reference numbers in fig. 7 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203, 11-pneumatic pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207 electronic liquid level meter; 4-temperature regulating system, 401-heat supply pipeline, 402-heat supply device and 403-heat exchanger.
The different reference numbers in fig. 8 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203, 11-pneumatic pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207 electronic liquid level meter; 4-temperature regulating system, 401-heat supply pipeline, 402-heat supply device and 403-heat exchanger.
The different reference numbers in fig. 9 are: 2-density adjusting system, 201-buoyancy module, 202-compressor, 203-air bag, 204-drain pipe; 4-temperature regulating system, 401-heat supply pipeline, 402-heat supply device and 403-heat exchanger.
The different reference numbers in fig. 10 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203, 11-pneumatic pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207 electronic liquid level meter; 3-pressure regulating system, 301-submersible pump, 302-suction box; 4-temperature regulating system, 401-heat supply pipeline, 402-heat supply device, 403-heat exchanger, 404-water return pipeline.
The different reference numbers in fig. 11 are: 2-density adjusting system, 201-buoyancy module, 202-pressure supply module, 203, 11-pneumatic pipeline, 204-electric valve, 205-air inlet pipe, 206-water outlet pipe, 207 electronic liquid level meter; 4-temperature regulating system, 401-heat supply pipeline, 402-heat supply device, 403-heat exchanger, 404-water return pipeline.
The different reference numbers in fig. 12 are: 2-density adjusting system, 201-buoyancy module, 202-compressor, 203-air bag, 204-drain pipe; 4-temperature regulating system, 401-heat supply pipeline, 402-heat supply device, 403-heat exchanger, 404-water return pipeline.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example 1
As shown in fig. 1 and 13, the seabed natural gas hydrate collecting device comprises a mother ship 5 and a hollow natural gas collecting cover 1, wherein a natural gas storing device 7 and a pressure supply module 202 are arranged on the mother ship 5, the natural gas storing device 7 is connected with the top of the natural gas collecting cover 1 through a gas production pipeline 12, the natural gas collecting cover 1 is connected with the bottom of the mother ship 5 through a riser 13, and the gas production pipeline 12 is arranged in the riser 13; the anchoring system 8 is arranged around the bottom of the natural gas collecting cover 1, the pressure adjusting system 3 is arranged at the bottom of the natural gas collecting cover 1, the temperature adjusting system 4 and the stirring system 9 are arranged inside the natural gas collecting cover 1, and the propelling system 6 is arranged on the outer wall of the natural gas collecting cover 1; and a density adjusting system 2 is arranged in the side wall of the natural gas collecting cover 1. Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; a plurality of buoyancy modules 201 are arranged between an inner shell and an outer shell which are arranged on the natural gas collecting cover 1, each buoyancy module 201 comprises a sealed inner hollow box body, an electronic liquid level meter 207 is arranged in each box body, a water drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to an air pressure pipeline 203 in parallel, and the air pressure pipeline 203 is fixed on a shell of the natural gas collecting cover 1 and penetrates through a water-stop pipe 13 to be connected to a pressure supply module 202. The temperature regulation system 4 comprises an oxygen supply pipeline 401, an oxygen supply device 402 and a heat generator 403, wherein the oxygen supply device 402 is installed on the mother ship 5, the oxygen supply pipeline 401 is connected to the oxygen supply device 402, the oxygen supply pipeline 401 penetrates through the marine riser 13 and stretches into the interior of the natural gas collection cover 1, the part of the oxygen supply pipeline 401 located in the interior of the natural gas collection cover 1 is spirally arranged, and a plurality of heat generators 403 are fixed on the spiral part of the oxygen supply pipeline 401. The natural gas collecting cover 1 comprises a shell 101, a top platform 102, a baffle 103 and lifting rings 104, wherein the shell 101 comprises an inner shell and an outer shell, the shell 101 is of a hollow pyramid structure, the top of the shell 101 is provided with the top platform 102, the bottom edge of the shell 101 is hermetically connected with a circle of annular baffle 103, and the middle part of the outer wall of the shell 101 is provided with the lifting rings 104. The anchoring system 8 is arranged around the bottom of the natural gas collecting cover 1, the anchoring system 8 comprises a screw 801, a motor 802, a transmission device 803 and a closed anchoring shell, the anchoring shell is fixed on the upper portion of the baffle 103, the motor 802 is fixed in the anchoring shell, the motor 802 is connected with the transmission device 803 and drives the screw 801 to rotate, and the screw 801 penetrates out of the bottom of the anchoring shell. One end of the gas production pipeline 12 is positioned on the top platform 102 and communicated with the interior of the natural gas collecting cover 1, and the other end of the gas production pipeline is positioned on the mother ship 5 and connected with the natural gas storing device 7; wherein, the riser 13 is internally provided with a gas production pipeline 12, a gas pressure pipeline 203, an oxygen supply pipeline 401 and a cable. The pressure adjusting system 3 is arranged at the bottom of the natural gas collecting cover 1, the pressure adjusting system 3 comprises a submersible pump 301 and a water suction box 302, the water suction box 302 is arranged inside the natural gas collecting cover 1, the submersible pump 301 is fixed on the natural gas collecting cover 1, the submersible pump 301 is communicated with the water suction box 302 through a water inlet hose, and the submersible pump 301 is communicated to the outside of the natural gas collecting cover 1 through a water outlet pipe. The stirring system 9 is arranged on the lower side of the interior of the natural gas collecting cover 1, the stirring system 9 comprises a travelling crane 901 and a water jet device 902, the travelling crane 901 is fixed on the inner wall of the shell 101, and the water jet device 902 is mounted on the travelling crane 901 and can move along with the travelling crane. The propulsion system 6 comprises a carrying platform 601, a propeller 602 and a motor 603, wherein the carrying platform 601 is fixed at the middle part of the outer side of the natural gas collecting cover 1, and the motor 603 is connected with the propeller 622 and is installed on the carrying platform 601. The natural gas collecting cover comprises a natural gas collecting cover 1, a monitoring system 10 and a plurality of shell stress monitoring devices, wherein the monitoring system 10 comprises a temperature and pressure monitoring device and a shell stress monitoring device, the temperature and pressure monitoring device is installed inside a top platform 102, and the shell stress monitoring devices are installed outside a shell 101 of the natural gas collecting cover 1; the monitoring system 10, the propulsion system 6, the pressure regulating system 3, the anchoring system 8, the stirring system 9, the temperature regulating system 4 and the density regulating system 2 are respectively connected to a control center through cables, and the control center is arranged on the mother ship 5. In the invention, the mother ship is used for operating and controlling by operators on the sea. The natural gas collecting cover can cover the seabed mud bed of the designated area, seal the seabed mud bed of the designated area, collect the natural gas in the designated area and transmit the natural gas to the natural gas collecting device on the mother ship for storage through the natural gas production pipeline. The marine riser is used for placing the gas production pipeline, the air pressure pipeline, the oxygen supply pipeline, the cable and the like in the marine riser, so that the marine riser is prevented from being corroded by seawater, and the service life of the marine riser is ensured. The anchoring system is arranged around the bottom of the natural gas collecting cover, and the collecting cover can be hermetically fixed on a seabed mud bed, so that leakage in the natural gas collecting process is ensured. The pressure regulating system can discharge the liquid in the collecting cover, so that negative pressure is formed in the closed collecting cover, the natural gas hydrate of the seabed mud bed is promoted to decompose, and the exploitation of the seabed natural gas hydrate is facilitated; the temperature adjusting system is mainly used for increasing the temperature inside the natural gas collecting cover when the temperature value in the collecting cover is low, so that the internal temperature of the natural gas collecting cover is increased, natural gas hydrates of seabed mud bed species are decomposed, and exploitation of the seabed natural gas hydrates is facilitated. The stirring system can stir the seabed mud bed through the stirring system after a certain time of collection in a designated area, so as to promote the decomposition of deep hydrates of the seabed mud bed. And the propulsion system can be used for finely adjusting the collecting cover when the natural gas collecting cover is lowered to a specified area so as to ensure the accurate positioning of the collecting cover. And the density adjusting system adjusts the density of the natural gas collecting cover, so that the lifting and lowering of the collecting cover are controlled. The density adjusting system generates pressure gas through the pressure supply module and supplies the pressure gas into the box body of the buoyancy module through the air pressure pipeline, so that water in the box body can be discharged, the density of the collecting cover is reduced, and the collecting cover is lifted; on the contrary, when the collecting cover is lowered, the pressure gas in the box body can be discharged through controlling, the density of the collecting cover is increased when seawater enters the box body, and the collecting cover is lowered to the seabed mud bed. Locate all buoyancy modules and collect between the inside and outside casing of cover to make the holistic structure of cover more compact simpler, and collect the cover and be difficult for receiving external environment's influence and produce the removal, more do benefit to transportation and save. The seabed natural gas hydrate collecting device mainly solves the problems that natural gas is not dissipated and leaked in the decomposing, collecting and exploiting processes of the natural gas hydrate of the seabed mud bed, breaks through the conventional thinking mode, skillfully utilizes pressure regulation to form negative pressure and increases the temperature of a temperature regulating system to promote the decomposition of the natural gas hydrate of the seabed mud bed, is beneficial to the exploitation of the seabed natural gas hydrate, greatly improves the natural gas collecting rate, and provides a new direction for the exploitation of the seabed natural gas hydrate; therefore, the invention can ensure stable production by controlling the density, the pressure and the temperature, has convenient natural gas collection and high collection efficiency, and can be repeatedly used for many times.
The invention relates to a submarine natural gas hydrate acquisition method, which is realized by the following steps:
firstly, transporting a plurality of natural gas collecting covers 1 to a specified seabed area by a mother ship 5, controlling a density adjusting system 2 to fill water into a buoyancy module 201, and starting a propulsion system 6 to finely adjust the positions of the natural gas collecting covers 1 when the natural gas collecting covers 1 are controlled to be lowered to be close to preset positions;
step two, after the natural gas collecting cover 1 reaches a preset position, controlling the annular baffle plate 103 to be inserted into the seabed mud bed, starting the anchoring system 5 to enable the screw 801 to extend into the seabed mud bed, and fixing and sealing the natural gas collecting cover 1;
step three, starting the pressure regulating system 3, discharging seawater in the natural gas collecting cover 1, enabling the natural gas collecting cover 1 to form negative pressure to promote hydrate decomposition, collecting the natural gas hydrate to the natural gas storing device 7 through the gas production pipeline 12 for processing and storing, monitoring the pressure change in the natural gas collecting cover 1 by the monitoring system 10, adjusting the working state of the pressure regulating system 3 in real time, and ensuring the stable internal pressure of the natural gas collecting cover 1;
step four, the monitoring system 10 monitors the internal temperature value of the natural gas collecting cover 1, compares the detected temperature value with a set value, starts the temperature adjusting system 4 if the temperature value is lower, the oxygen supply device 402 generates oxygen, supplies the oxygen to the heat generator 403 through the oxygen supply pipeline 401, controls the oxygen and the natural gas to react in the heat generator 403, generates heat to improve the internal temperature of the natural gas collecting cover 1, and controls the oxygen supply device 402 to stop generating the oxygen when the temperature value reaches the preset value;
step five, after the natural gas hydrate in the same designated seabed area is collected for a certain time, starting the stirring system 9, controlling the water jet device 902 to aim at the seabed mud bed and spray high-pressure water flow, and stirring the seabed mud bed to promote the decomposition of the deep hydrate;
step six, after the natural gas exploitation of the designated seabed area is completed, the density adjusting system 2 supplies gas to the buoyancy module 201 to reduce the overall density of the natural gas collecting cover 1, the anchoring system 8 is released from fixation, the natural gas collecting cover 1 floats and is separated from the contact with the seabed mud bed, the propulsion system 6 pushes the natural gas collecting cover 1 to move to the next area to be exploited, and the steps one to five are repeated.
Example 2
As shown in fig. 2 and 14, this embodiment is similar to embodiment 1 except that: the outer wall of the natural gas collecting cover 1 is provided with a density adjusting system 2, and the density adjusting system 2 comprises a buoyancy module 201, a pressure supply module 202 and a gas pressure pipeline 203; the buoyancy modules 201 are arranged on the outer wall of the shell 101, each buoyancy module 201 comprises a sealed hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to the air pressure pipeline 203 in parallel, and the air pressure pipeline 203 is fixed on the outer wall of the shell 101 and penetrates through the water-resisting pipe 13 to be connected to the pressure supply module 202.
The temperature regulation system 4 comprises an oxygen supply pipeline 401, an oxygen supply device 402 and a heat generator 403, wherein the oxygen supply device 402 is installed on the mother ship 5, the oxygen supply pipeline 401 is connected to the oxygen supply device 402, the oxygen supply pipeline 401 penetrates through the marine riser 13 and stretches into the interior of the natural gas collection cover 1, the part of the oxygen supply pipeline 401 located in the interior of the natural gas collection cover 1 is spirally arranged, and a plurality of heat generators 403 are fixed on the spiral part of the oxygen supply pipeline 401.
In the density adjusting system in the embodiment, the pressure gas is generated by the pressure supply module, and the pressure gas is supplied into the box body of the buoyancy module through the air pressure pipeline, so that the water in the box body can be discharged, the density of the collecting cover is reduced, and the collecting cover is lifted; on the contrary, when the collecting cover is lowered, the pressure gas in the box body can be discharged through controlling, the density of the collecting cover is increased when seawater enters the box body, and the collecting cover is lowered to the seabed mud bed. All the buoyancy modules are arranged on the outer wall of the collecting cover, so that the buoyancy modules are convenient to mount and fix, and the collecting cover is not easy to move due to the influence of the external environment, and is more beneficial to transportation and storage; in addition, all buoyancy modules are arranged on the outer wall of the collecting cover, so that the influence and control on the buoyancy modules on the collecting cover through buoyancy are more accurate.
Example 3
As shown in fig. 3 and 15, this embodiment is similar to embodiment 1 except that: cover 1 is collected to the natural gas outside has arranged a plurality of rings 104, be connected with density governing system 2 through the hawser on the rings 104, density governing system 2 is including being located the natural gas and collecting a plurality of buoyancy module 201 of cover 1 outside, buoyancy module 201 is sealed interior empty box, buoyancy module 201's bottom is equipped with the link, be connected through the hawser between link and the rings 104, buoyancy module 201's top is equipped with the inside and outside drain pipe 204 of intercommunication buoyancy module 201, the inside gasbag 203 that is equipped with of buoyancy module 201, but gasbag 203 is connected on long-range wireless control's compressor 202.
The temperature regulation system 4 comprises an oxygen supply pipeline 401, an oxygen supply device 402 and a heat generator 403, wherein the oxygen supply device 402 is installed on the mother ship 5, the oxygen supply pipeline 401 is connected to the oxygen supply device 402, the oxygen supply pipeline 401 penetrates through the marine riser 13 and stretches into the interior of the natural gas collection cover 1, the part of the oxygen supply pipeline 401 located in the interior of the natural gas collection cover 1 is spirally arranged, and a plurality of heat generators 403 are fixed on the spiral part of the oxygen supply pipeline 401. The buoyancy modules are connected outside the natural gas collecting cover through cables, so that the volume and the weight of the natural gas collecting cover can be reduced, the production and transportation cost of the natural gas collecting cover is reduced, the buoyancy modules are connected in an external connection mode, the monitoring and the management of the buoyancy modules are facilitated, the density of the whole natural gas collecting cover is controlled by the size of the air bag, and when the air bag is increased, the density of water discharged from the box body is reduced, so that the density of the collecting cover is reduced and the density of the collecting cover is lifted; when the air bag is reduced, the density of water entering the box body from the outside of the box body is increased, and the collecting cover is lowered to the seabed mud bed; the size of the air bag is controlled by the air compressor, and the air compressor is remotely and wirelessly controlled, so that the control is more convenient and faster.
The invention relates to a submarine natural gas hydrate acquisition method, which is realized by the following steps:
firstly, transporting a plurality of natural gas collecting covers 1 to a specified seabed area by a mother ship 5, controlling the size of an air bag 203 in a density adjusting system 2 to be reduced, filling water into a buoyancy module 201, and starting a propulsion system 6 to finely adjust the position of the natural gas collecting cover 1 when the natural gas collecting cover 1 is controlled to be lowered to be close to a preset position;
step two, after the natural gas collecting cover 1 reaches a preset position, controlling the annular baffle plate 103 to be inserted into the seabed mud bed, starting the anchoring system 5 to enable the screw 801 to extend into the seabed mud bed, and fixing and sealing the natural gas collecting cover 1;
step three, starting the pressure regulating system 3, discharging seawater in the natural gas collecting cover 1, enabling the natural gas collecting cover 1 to form negative pressure to promote hydrate decomposition, collecting the natural gas hydrate to the natural gas storing device 7 through the gas production pipeline 12 for processing and storing, monitoring the pressure change in the natural gas collecting cover 1 by the monitoring system 10, adjusting the working state of the pressure regulating system 3 in real time, and ensuring the stable internal pressure of the natural gas collecting cover 1;
step four, the monitoring system 10 monitors the internal temperature value of the natural gas collecting cover 1, compares the detected temperature value with a set value, starts the temperature adjusting system 4 if the temperature value is lower, the oxygen supply device 402 generates oxygen, supplies the oxygen to the heat generator 403 through the oxygen supply pipeline 401, controls the oxygen and the natural gas to react in the heat generator 403, generates heat to improve the internal temperature of the natural gas collecting cover 1, and controls the oxygen supply device 402 to stop generating the oxygen when the temperature value reaches the preset value;
step five, after the natural gas hydrate in the same designated seabed area is collected for a certain time, starting the stirring system 9, controlling the water jet device 902 to aim at the seabed mud bed and spraying high-pressure water flow, and stirring the seabed mud bed to promote the separation of the deep hydrate;
step six, after the natural gas exploitation of the designated seabed area is completed, the density adjusting system 2 supplies gas to the air bag 203 through the gas compressor 202, so that water in the buoyancy module 201 is discharged, the overall density of the natural gas collecting cover 1 is reduced, the anchoring system 8 is released from fixation, the natural gas collecting cover 1 is floated and separated from contact with a seabed mud bed, the propulsion system 6 pushes the natural gas collecting cover 1 to move to the next area to be exploited, and the step two to the step six are repeated.
Example 4
As shown in fig. 4 and 13, this embodiment is similar to embodiment 1 except that: be equipped with density control system 2 in the lateral wall of cover 1 is collected to the natural gas, cover 1 inside temperature control system 4 and the stirring system 9 of being equipped with is collected to the natural gas, temperature control system 4 includes heating device 401 and support 402, cover 1 is collected to the natural gas is arranged a plurality of supports 402 side by side, wherein be fixed with a plurality of heating device 401 on the support 402, heating device 401 is connected on the cable, the cable passes riser 13 and is connected to the control center on mother's ship 5.
Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; a plurality of buoyancy modules 201 are arranged between an inner shell and an outer shell which are arranged on the natural gas collecting cover 1, each buoyancy module 201 comprises a sealed inner hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to an air pressure pipeline 203 in parallel, the air pressure pipeline 203 is fixed on a shell of the natural gas collecting cover 1 and penetrates through a water-resisting pipe 13 to be connected to a pressure supply module 202, and the pressure supply module 202 is arranged on a mother ship 5. Locate all buoyancy modules and collect between the inside and outside casing of cover to make the holistic structure of cover more compact simpler, and collect the cover and be difficult for receiving external environment's influence and produce the removal, more do benefit to transportation and save. Wherein a plurality of side-by-side brackets are arranged in the natural gas collecting cover, and the brackets are installed and fixed on the inner wall of the collecting cover, so that the connection of the collecting cover is more warm; in addition on the one hand the support is arranged side by side in collecting the cover, make to collect the cover and have the support on vertical equipartition, and all design has heating device on every support, when collecting in the cover temperature low excessively, accessible electrical heating's mode is to collecting in the cover to the temperature that makes to collect the cover inside is even, thereby avoids collecting local high temperature in the cover, forms great difference in temperature, causes the natural gas inflation pressure increase in the twinkling of an eye, and the dangerous accident that brings ensures production safety. And the control center on the mother ship controls the ship through a cable, so that the control is more convenient, quicker and more reliable, and the operation is more simple and convenient.
Example 5
As shown in fig. 5 and 14, this embodiment is similar to embodiment 2 except that: be equipped with density control system 2 on the outer wall of cover 1 is collected to the natural gas, cover 1 inside temperature control system 4 and the stirring system 9 of being equipped with is collected to the natural gas, temperature control system 4 includes heating device 401 and support 402, a plurality of side by side supports 402 have been arranged in the casing 101, wherein be fixed with a plurality of heating device 401 on the support 402, heating device 401 is connected on the cable, the cable passes riser 13 and is connected to the control center on mother's ship 5.
Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; the buoyancy modules 201 are arranged on the outer wall of the shell 101, each buoyancy module 201 comprises a sealed hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to the air pressure pipeline 203 in parallel, and the air pressure pipeline 203 is fixed on the outer wall of the shell 101 and penetrates through the water-resisting pipe 13 to be connected to the pressure supply module 202.
Example 6
As shown in fig. 6 and 15, this embodiment is different from embodiment 3 in that: a plurality of rings 104 have been arranged on the outer wall of cover 1 is collected to the natural gas, be connected with density control system 2 through the hawser on the rings 104, cover 1 is collected to the natural gas is inside to be equipped with temperature regulation system 4 and stirring system 9, temperature regulation system 4 includes heating device 401 and support 402, a plurality of side by side supports 402 have been arranged in the casing 101, wherein be fixed with a plurality of heating device 401 on the support 402, heating device 401 is connected on the cable, the cable passes riser 13 and is connected to the control center on mother's ship 5.
The density adjusting system 2 comprises a plurality of buoyancy modules 201 located outside the natural gas collecting cover 1, the buoyancy modules 201 are sealed hollow box bodies, hanging rings are arranged at the bottoms of the buoyancy modules 201 and connected with the hanging rings 104 through cables, drain pipes 204 communicated with the inside and the outside of the buoyancy modules 201 are arranged at the tops of the buoyancy modules 201, air bags 203 are arranged inside the buoyancy modules 201, and the air bags 203 are connected to a compressor 202 capable of being remotely and wirelessly controlled.
Example 7
As shown in fig. 7 and 13, this embodiment is similar to embodiments 1 and 4, except that: be equipped with density governing system 2 in the lateral wall of cover 1 is collected to the natural gas, cover 1 inside temperature governing system 4 and the stirring system 9 of being equipped with is collected to the natural gas, temperature governing system 4 includes heating device 402, heat supply pipeline 401 and heat exchanger 403, be equipped with heating device 402 on mother's ship 5, be connected with heat supply pipeline 401 on the heating device 402, heat supply pipeline 401 passes riser 13 and is connected to the heat exchanger 403 in the cover 1 is collected to the natural gas, and wherein a plurality of heat exchanger 403 are fixed in the inner wall that the cover 1 was collected to the natural gas to be connected with heat supply pipeline 401 through the valve.
Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; a plurality of buoyancy modules 201 are arranged between an inner shell and an outer shell which are arranged on the natural gas collecting cover 1, each buoyancy module 201 comprises a sealed inner hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to an air pressure pipeline 203 in parallel, the air pressure pipeline 203 is fixed on a shell of the natural gas collecting cover 1 and penetrates through a water-resisting pipe 13 to be connected to a pressure supply module 202, and the pressure supply module 202 is arranged on a mother ship 5.
Example 8
As shown in fig. 8 and 14, this embodiment is similar to embodiments 2 and 5, except that: be equipped with density governing system 2 in the lateral wall of cover 1 is collected to the natural gas, cover 1 inside temperature governing system 4 and the stirring system 9 of being equipped with is collected to the natural gas, temperature governing system 4 includes heating device 402, heat supply pipeline 401 and heat exchanger 403, be equipped with heating device 402 on mother's ship 5, be connected with heat supply pipeline 401 on the heating device 402, heat supply pipeline 401 passes riser 13 and is connected to the heat exchanger 403 in the cover 1 is collected to the natural gas, and wherein a plurality of heat exchanger 403 are fixed in the inner wall that the cover 1 was collected to the natural gas to be connected with heat supply pipeline 401 through the valve.
Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; a plurality of buoyancy modules 201 are arranged between an inner shell and an outer shell which are arranged on the natural gas collecting cover 1, each buoyancy module 201 comprises a sealed inner hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to an air pressure pipeline 203 in parallel, the air pressure pipeline 203 is fixed on a shell of the natural gas collecting cover 1 and penetrates through a water-resisting pipe 13 to be connected to a pressure supply module 202, and the pressure supply module 202 is arranged on a mother ship 5.
Example 9
As shown in fig. 9 and 15, this embodiment is similar to embodiments 3 and 6, except that: the cover 1 is collected to the natural gas has arranged a plurality of rings 104 on the outside, be connected with density governing system 2 through the hawser on the rings 104, the natural gas is collected and is covered 1 inside temperature governing system 4 and the stirring system 9 of being equipped with, temperature governing system 4 includes heating device 402, heat supply pipeline 401 and heat exchanger 403, be equipped with heating device 402 on the mother's ship 5, be connected with heat supply pipeline 401 on the heating device 402, heat supply pipeline 401 passes riser 13 and is connected with the heat exchanger 403 in the cover 1 is collected to the natural gas, and wherein a plurality of heat exchanger 403 are fixed in the inner wall of casing 101 to be connected with heat supply pipeline 401 through the valve.
The density adjusting system 2 comprises a plurality of buoyancy modules 201 located outside the natural gas collecting cover 1, the buoyancy modules 201 are sealed hollow box bodies, hanging rings are arranged at the bottoms of the buoyancy modules 201 and connected with the hanging rings 104 through cables, drain pipes 204 communicated with the inside and the outside of the buoyancy modules 201 are arranged at the tops of the buoyancy modules 201, air bags 203 are arranged inside the buoyancy modules 201, and the air bags 203 are connected to a compressor 202 capable of being remotely and wirelessly controlled.
Example 10
As shown in fig. 10 and 13, this embodiment is similar to embodiments 1, 4, and 7 except that: a density adjusting system 2 is arranged in the side wall of the natural gas collecting cover 1, a temperature adjusting system 4 and a stirring system 9 are arranged in the natural gas collecting cover 1, the temperature adjusting system 4 comprises a heat supply device 402, a heat supply pipeline 401, a heat exchanger 403 and a water return pipeline 404, the mother ship 5 is provided with the heat supply device 402, the heat supply device 402 is connected with the heat supply pipeline 401, the heat supply pipeline 401 penetrates through a water-resisting pipe 13 to the interior of the natural gas collecting cover 1, a plurality of branch pipelines connected with the heat supply pipeline 401 are arranged in the natural gas collecting cover 1, and a plurality of heat exchangers 403 are arranged on the branch pipelines; the branch pipeline is of a frame structure with the same shape as the natural gas collecting cover 1, the branch pipeline is connected with a water return pipeline 404, and the water return pipeline 404 penetrates through the marine riser 13 and is connected to a heating device 402 on the mother ship 5.
Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; a plurality of buoyancy modules 201 are arranged between an inner shell and an outer shell which are arranged on the natural gas collecting cover 1, each buoyancy module 201 comprises a sealed inner hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to an air pressure pipeline 203 in parallel, the air pressure pipeline 203 is fixed on a shell of the natural gas collecting cover 1 and penetrates through a water-resisting pipe 13 to be connected to a pressure supply module 202, and the pressure supply module 202 is arranged on a mother ship 5.
Example 11
As shown in fig. 11 and 14, this embodiment is similar to embodiments 2, 5, and 8 except that: the density adjusting system 2 is arranged on the outer wall of the natural gas collecting cover 1, the temperature adjusting system 4 and the stirring system 9 are arranged inside the natural gas collecting cover 1, the temperature adjusting system 4 comprises a heat supply device 402, a heat supply pipeline 401, a heat exchanger 403 and a water return pipeline 404, the heat supply device 402 is arranged on the mother ship 5, the heat supply device 402 is connected with the heat supply pipeline 401, the heat supply pipeline 401 penetrates through the water-resisting pipe 13 to the inside of the natural gas collecting cover 1, a plurality of branch pipelines connected with the heat supply pipeline 401 are arranged in the natural gas collecting cover 1, and a plurality of heat exchangers 403 are arranged on the branch pipelines; the branch pipeline is of a frame structure with the same shape as the natural gas collecting cover 1, the branch pipeline is connected with a water return pipeline 404, and the water return pipeline 404 penetrates through the marine riser 13 and is connected to a heating device 402 on the mother ship 5.
Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; the buoyancy modules 201 are arranged on the outer wall of the shell 101, each buoyancy module 201 comprises a sealed hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to the air pressure pipeline 203 in parallel, and the air pressure pipeline 203 is fixed on the outer wall of the shell 101 and penetrates through the water-resisting pipe 13 to be connected to the pressure supply module 202.
Example 12
As shown in fig. 12 and 15, this embodiment is similar to embodiments 3, 6 and 9 except that: the natural gas collecting cover comprises a natural gas collecting cover 1, and is characterized in that a plurality of lifting rings 104 are arranged on the outer portion of the natural gas collecting cover 1, density adjusting systems 2 are connected to the lifting rings 104 through cables, a temperature adjusting system 4 and a stirring system 9 are arranged inside the natural gas collecting cover 1, the temperature adjusting system 4 comprises a heat supply device 402, a heat supply pipeline 401, a heat exchanger 403 and a water return pipeline 404, a heat supply device 402 is arranged on a mother ship 5, the heat supply device 402 is connected with the heat supply pipeline 401, the heat supply pipeline 401 penetrates through a water-resisting pipe 13 to the inner portion of the natural gas collecting cover 1, a plurality of branch pipelines connected with the heat supply pipeline 401 are arranged in the natural gas collecting; the branch pipeline is of a frame structure with the same shape as the natural gas collecting cover 1, the branch pipeline is connected with a water return pipeline 404, and the water return pipeline 404 penetrates through the marine riser 13 and is connected to a heating device 402 on the mother ship 5.
Wherein the density adjustment system 2 comprises a buoyancy module 201, a pressure supply module 202 and a pneumatic line 203; the buoyancy modules 201 are arranged on the outer wall of the shell 101, each buoyancy module 201 comprises a sealed hollow box body, an electronic liquid level meter 207 is arranged in each box body, a drain pipe 206 and an air inlet pipe 205 which are communicated with the inside and the outside are arranged on each box body, the air inlet pipes 205 of all the buoyancy modules 201 are connected to the air pressure pipeline 203 in parallel, the air pressure pipeline 203 is fixed on the outer wall of the shell 101 and penetrates through the water-resisting pipe 13 to be connected to the pressure supply module 202, and the pressure supply module 202 is arranged on the mother ship 5.
Cover 1 is collected to natural gas includes casing 101, top platform 102, baffle 103 and rings 104, casing 101 includes the inlayer casing, casing 101 is hollow pyramid structure, top platform 102 is established at casing 101's top, sealing connection has round annular baffle 103 on casing 101's the base, casing 101's outer wall middle part is equipped with a plurality of rings 104, the branch pipeline is pyramid frame construction in casing 101.
Based on the principle of the above embodiments, similar changes, combinations or overlays can be performed on the components, so that similar technical solutions can be obtained, and the technical problems of the present invention can be solved.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (8)
1. The utility model provides a seabed natural gas hydrate collection system which characterized in that: the natural gas collecting cover is internally hollow, an anchoring system is arranged around the bottom of the natural gas collecting cover, a pressure regulating system is arranged at the bottom of the natural gas collecting cover, the natural gas collecting cover is provided with a density regulating system, a temperature regulating system and a stirring system are arranged inside the natural gas collecting cover, a propelling system is arranged on the outer wall of the natural gas collecting cover, the natural gas collecting cover is connected to the bottom of a mother ship through a water-proof pipe, a gas production pipeline penetrates through the water-proof pipe, the top of the natural gas collecting cover is connected to a natural gas collecting and storing device through the gas production pipeline, and the natural gas collecting and storing device is arranged on the mother ship; the natural gas collecting cover comprises a shell, a top platform, a baffle and a hanging ring, the shell is of a hollow pyramid structure, the top of the shell is provided with the top platform, and the bottom edge of the shell is connected with a ring-shaped baffle; the density adjusting system comprises a buoyancy module, a pressure supply module and an air pressure pipeline; the mother ship is provided with a pressure supply module; the natural gas collecting cover is of a hollow pyramid structure, a plurality of buoyancy modules are arranged between an inner shell and an outer shell of the natural gas collecting cover, each buoyancy module comprises a sealed hollow box body, an electronic liquid level meter is arranged in each box body, a water drain pipe and an air inlet pipe which are communicated with the inside and the outside are arranged on each box body, all the air inlet pipes are connected to an air pressure pipeline in parallel, and the air pressure pipeline is fixed on the shell of each shell and penetrates through a water-proof pipe to be connected to the pressure supply module; or the density adjusting system comprises a buoyancy module, a pressure supply module and an air pressure pipeline; the mother ship is provided with a pressure supply module; the natural gas collecting cover is of a hollow pyramid structure, a plurality of buoyancy modules are arranged on the outer wall of the natural gas collecting cover and comprise a sealed hollow box body, an electronic liquid level meter is arranged in the box body, a water discharging pipe and an air inlet pipe which are communicated with the inside and the outside are arranged on the box body, all the air inlet pipes are connected in parallel on an air pressure pipeline, and the air pressure pipeline is fixed on the outer wall of the shell and penetrates through the water-resisting pipe to be connected to the pressure supply module;
or the density adjusting system comprises a plurality of buoyancy modules arranged outside the natural gas collecting cover, the buoyancy modules are connected to the lifting rings on the outer wall of the natural gas collecting cover through cables, the buoyancy modules are sealed hollow box bodies, hanging rings are arranged at the bottoms of the buoyancy modules, water drainage pipes communicated with the inside and the outside of the buoyancy modules are arranged at the tops of the buoyancy modules, and air compressors capable of being remotely and wirelessly controlled and air bags connected with the air compressors are arranged inside the buoyancy modules.
2. The subsea natural gas hydrate collection device of claim 1, wherein: the temperature adjusting system comprises an oxygen supply pipeline, an oxygen supply device and heat generators, wherein the oxygen supply device is arranged on the mother ship and is connected with the oxygen supply pipeline, the oxygen supply pipeline penetrates through the marine riser and is connected to the interior of the natural gas collecting cover, the parts of the oxygen supply pipeline positioned in the natural gas collecting cover are spirally arranged, and the heat generators are fixed on the spiral parts of the oxygen supply pipeline;
or the temperature adjusting system comprises a heating device and a support, a plurality of supports are arranged in parallel in the natural gas collecting cover, a plurality of heating devices are fixed on any support, the heating devices are connected to a cable, and the cable penetrates through the marine riser and is connected to a control center of the mother ship; or the temperature regulating system comprises a heat supply device, a heat supply pipeline and heat exchangers, the heat supply device is arranged on the mother ship, the heat supply pipeline is connected to the heat supply device, the heat supply pipeline penetrates through the water-stop pipe to be connected with the heat exchangers in the shell, and the heat exchangers are fixed on the inner wall of the shell and connected with the heat supply pipeline through valves; or the temperature adjusting system comprises a heat supply device, a heat supply pipeline, a heat exchanger and a return water pipeline, the heat supply device is arranged on the mother ship, the heat supply pipeline is connected to the heat supply device, the heat supply pipeline penetrates through the water-resisting pipe to the interior of the natural gas collecting cover, a plurality of branch pipelines connected with the heat supply pipeline are arranged in the natural gas collecting cover, and a plurality of heat exchangers are arranged on the branch pipelines; the branch pipeline is of a frame structure with the same shape as the natural gas collecting cover, the branch pipeline is connected with a water return pipeline, and the water return pipeline penetrates through a water-stop pipe and is connected to a heat supply device on the mother ship; or the temperature regulation system comprises an oxygen supply device, an oxygen supply pipeline and an oxygen heater, the oxygen supply device is arranged on the mother ship, the oxygen supply device is connected with the oxygen supply pipeline, the oxygen supply pipeline penetrates through the water-stop pipe to be connected to the inside of the shell, and the water-stop pipe is connected with the oxygen heater.
3. The subsea natural gas hydrate collection device of claim 1 or 2, wherein: the bottom that the cover was collected to the natural gas is located to pressure regulating system, pressure regulating system includes immersible pump and suction box, the immersible pump passes through the suction box that intake hose intercommunication natural gas was collected the inside of cover, the immersible pump passes through outlet pipe intercommunication natural gas and collects the cover outside.
4. The subsea natural gas hydrate collection device of claim 1 or 2, wherein: the anchoring system is arranged around the bottom of the natural gas collecting cover and comprises a screw, a motor, a transmission device and a closed anchoring shell, the anchoring shell is fixed on the upper portion of the baffle, the motor is fixed in the anchoring shell, the motor is connected with the transmission device and drives the screw to rotate, and the screw penetrates out of the bottom of the anchoring shell.
5. The subsea natural gas hydrate collection device of claim 1 or 2, wherein: the inside downside of cover is collected to the natural gas is equipped with stirring system, stirring system is including driving a vehicle and water jet device, the driving a vehicle is fixed in shells inner wall, the water jet device is installed and can be removed along with the driving a vehicle on the driving a vehicle.
6. The subsea natural gas hydrate collection device of claim 1 or 2, wherein: a gas production pipeline, an air pressure pipeline, an oxygen supply pipeline and a cable penetrate through the marine riser; wherein one end of the gas production pipeline is positioned on a platform at the top of the natural gas collecting cover and communicated with the interior of the natural gas collecting cover, and the other end of the gas production pipeline is positioned on a mother ship and communicated with the natural gas collecting and storing device.
7. The subsea natural gas hydrate collection device of claim 1 or 2, wherein: the propulsion system comprises a carrying platform, a propeller thruster and a motor, wherein the carrying platform is fixed in the middle of the outer side of the natural gas collecting cover, and the motor is connected with the propeller thruster and installed on the carrying platform.
8. The subsea natural gas hydrate collection device of claim 1 or 2, wherein: a monitoring system is arranged in the natural gas collecting cover and comprises a temperature and pressure monitoring device and a shell stress monitoring device, wherein the temperature and pressure monitoring device is arranged in a platform at the top of the natural gas collecting cover, and a plurality of shell stress monitoring devices are arranged outside a shell of the natural gas collecting cover; the monitoring system, the propelling system, the pressure regulating system, the anchoring system, the stirring system, the temperature regulating system and the density regulating system are respectively connected to a control center through cables, and the control center is arranged on the mother ship.
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| CN201610170980.9A CN105781497B (en) | 2016-03-24 | 2016-03-24 | Seabed natural gas hydrate collection system |
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| CN107631899B (en) * | 2016-08-04 | 2019-08-23 | 吉林大学 | A kind of continuous sampling system and sampling method for ocean gas hydrate |
| CN106545297B (en) * | 2016-12-22 | 2018-06-01 | 李峰 | A kind of immersible pump suitable for decompression method exploitation combustible ice |
| CN108386196A (en) * | 2018-04-09 | 2018-08-10 | 上海飞舟博源石油装备技术有限公司 | The mining system and recovery method of seabed combustible ice |
| CN109798092B (en) * | 2018-12-26 | 2022-01-07 | 浙江省海洋水产研究所 | Seabed natural gas receiving equipment with built-in heating pipeline |
| CN112033766B (en) * | 2020-09-04 | 2024-03-26 | 中国科学院武汉岩土力学研究所 | In-situ sampling device and method for foaming gas in superficial sediment |
| CN113404469B (en) * | 2021-08-18 | 2021-11-02 | 中国石油大学胜利学院 | Extended submarine combustible ice mining device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2403379C1 (en) * | 2009-06-24 | 2010-11-10 | Федеральное государственное унитарное предприятие Всероссийский научно-исследовательский институт геологии и минеральных ресурсов Мирового океана им. академика И.С. Грамберга | Method of gas production from natural accumulations of gas hydrates |
| CN202807547U (en) * | 2012-09-24 | 2013-03-20 | 中国舰船研究设计中心 | Self-diving and self-floating type underwater oil production and storage device |
| CN103857873A (en) * | 2011-08-12 | 2014-06-11 | 麦卡利斯特技术有限责任公司 | Systems and methods for extracting and processing gases from submerged sources |
-
2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2403379C1 (en) * | 2009-06-24 | 2010-11-10 | Федеральное государственное унитарное предприятие Всероссийский научно-исследовательский институт геологии и минеральных ресурсов Мирового океана им. академика И.С. Грамберга | Method of gas production from natural accumulations of gas hydrates |
| CN103857873A (en) * | 2011-08-12 | 2014-06-11 | 麦卡利斯特技术有限责任公司 | Systems and methods for extracting and processing gases from submerged sources |
| CN202807547U (en) * | 2012-09-24 | 2013-03-20 | 中国舰船研究设计中心 | Self-diving and self-floating type underwater oil production and storage device |
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