CN107165607A - The transformation device and its method of work of a kind of shale frequency spectrum resonance reservoir - Google Patents
The transformation device and its method of work of a kind of shale frequency spectrum resonance reservoir Download PDFInfo
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- CN107165607A CN107165607A CN201710413988.8A CN201710413988A CN107165607A CN 107165607 A CN107165607 A CN 107165607A CN 201710413988 A CN201710413988 A CN 201710413988A CN 107165607 A CN107165607 A CN 107165607A
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- 238000001228 spectrum Methods 0.000 title claims abstract description 45
- 230000009466 transformation Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000001960 triggered effect Effects 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000007789 gas Substances 0.000 description 38
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 238000011161 development Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
A kind of transformation device of shale frequency spectrum resonance reservoir is disclosed, and it includes ground power supply and control system, armored cable, servo-control mechanism, underground frequency spectrum resonating member；Ground power supply includes power supply and main control unit with control system, and underground frequency spectrum resonating member includes high-voltage pulse generator, exploding wires and triggers circuit；Main control unit is connected by armored cable and the high-voltage pulse generator of underground, the voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse generator of underground by main control unit, the internal capacitance for the triggers circuit being connected with high-voltage pulse generator is set to be full of electric energy, exploding wires are delivered to and internal capacitance certain distance by servo-control mechanism, the internal capacitance electric discharge of main control unit driving triggers circuit, make exploding wires under the control of discharge pulse by instantaneous pressure high current, occur frequency spectrum resonance.Additionally provide a kind of method of work of the transformation device of shale frequency spectrum resonance reservoir.
Description
Technical field
The technical field of shale gas reservoir reconstruction of the present invention, a kind of transformation dress for the reservoir that resonated more particularly to shale frequency spectrum
Put, and the device method of work.
Background technology
Shale gas refers to preservation in rich organic matter mud shale and its interlayer, to adsorb with free state as the side of being primarily present
The Unconventional gas of formula, composition is a kind of cleaning, efficient energy resources and industrial chemicals, is mainly used in based on methane
Resident's combustion gas, city heat supply, generating, motor vehicle fuel and Chemical Manufacture etc., it is widely used.Typically need not in shale gas production process
Draining, the production cycle is long, generally 30 years~50 years, and exploration and development success rate is high, is worth with higher industrial economy.China
Shale gas resource potential is big, and China's shale gas mining resources amount is in 25 tcms according to a preliminary estimate.
Shale gas exploitation has the advantages that production life of well length and production cycle are long --- most of aerogenesis shale distribution
Extensively, thickness is big, and universal gassiness so that shale gas well can chronically stablize aerogenesis.But shale gas permeability of reservoir is low, opens
Adopt difficulty larger.As what world energy sources was consumed constantly rises, the unconventional energy resource including shale gas is increasingly by weight
Depending on.The states such as America ＆ Canada have realized shale gas commercial development.The reservoir of shale gas reservoir is general in low hole, low-permeability
Physical property characteristic, the resistance ratios conventional gas of air-flow is big, and all wells are required for implementation reservoir fracturing improvement could be mined.
On the other hand, shale gas recovery ratio is lower than conventional gas, and conventional gas recovery ratio is more than 60%, and shale gas is only
5%~60%.Low yield affects people to be keen to it, and the U.S. has had some advanced technologies to improve the production of shale gas well
Amount.The reservoir of Chinese shale gas reservoir difference compared with the U.S., the shale gas-bearing formation buried depth in such as Sichuan Basin is bigger than the U.S.,
The shale gas-bearing formation depth in the U.S. is at 800~2600 meters, and the shale gas-bearing formation buried depth in the Sichuan Basin is at 2000~3500 meters.Shale gas
The increase of layer depth undoubtedly adds difficulty again at us in this jejune technology.
With advances in technology, the expense of shale gas well fracturing methods is also gradually reduced.Horizontal well is shale gas reservoir success
Another key factor of exploitation.According to American Experience, the average daily gas production and final gas production of horizontal well are the 3-5 of peupendicular hole
Times, gas production rate then improves 10 times, and 2-4 times of the cost of horizontal well then not enough peupendicular hole.Therefore, the popularization and application of horizontal well
Accelerate the development process of shale gas.Because shale gas develops larger, individual well control recoverable reserves height (up to 6,000
Incomparably), the individual well daily output after taking measures is up to 30,000 sides.In addition shale gas well yield lapse rate is low, easily realizes 30-
The stable production period of 50 years, therefore the economic value of relative high yield can be realized.
The production technique of current shale gas mainly includes horizontal well drilling completion technology and staged fracturing technology, riverfrac treatment skill
Art, multiple fracturing technique and newest synchronous fracturing technique, these technologies are just improving constantly shale gas well yield.
Shale gas exploration and development is successful in the U.S., and the research of domestic shale gas is also in the starting stage, but makees
For a kind of unconventional energy resource having a high potential, just gradually paid attention to by national associated mechanisms and each oil company.Shale gas is stored up
The research of layer renovation technique is always the focus and emphasis of developer's research.
The content of the invention
The technology of the present invention solves problem：Overcoming the deficiencies in the prior art, there is provided a kind of shale frequency spectrum resonance reservoir
Device is transformed, it can effectively improve the permeability of shale, so that reaching improves the purpose of reservoir permeability.
The present invention technical solution be：The transformation device of this shale frequency spectrum resonance reservoir, it includes ground power supply
With control system, armored cable, servo-control mechanism, underground frequency spectrum resonating member；Ground power supply includes power supply with control system
And main control unit, underground frequency spectrum resonating member include high-voltage pulse generator, exploding wires and triggers circuit；Main control unit passes through armour
The high-voltage pulse generator for filling cable and underground is connected, and the voltage of power supply is changed into adjustable voltage to drive underground by main control unit
High-voltage pulse generator, makes the internal capacitance for the triggers circuit being connected with high-voltage pulse generator be full of electric energy, exploding wires pass through
Servo-control mechanism is delivered to and internal capacitance certain distance, the internal capacitance electric discharge of main control unit driving triggers circuit, in electric discharge
Make exploding wires under the control of pulse by instantaneous pressure high current, occur frequency spectrum resonance.
A kind of method of work of the transformation device of shale frequency spectrum resonance reservoir is additionally provided, is comprised the following steps：
(1) power supply, main control unit, servo-control mechanism are arranged on shale well；
(2) sleeve pipe is laid in shale well, main control unit connection armored cable is resonated underground frequency spectrum by armored cable single
In first tripping in shale well；
(3) voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse generator of underground by main control unit, is made and height
The internal capacitance of the connected triggers circuit of impulse generator is pressed to be full of electric energy；
(4) exploding wires are delivered to and internal capacitance certain distance by servo-control mechanism；
(5) the internal capacitance electric discharge of main control unit driving triggers circuit, exploding wires are passed through under the control of discharge pulse
Instantaneous pressure high current, occurs frequency spectrum resonance.
The voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse generator of underground by the present invention by main control unit,
The internal capacitance for the triggers circuit being connected with high-voltage pulse generator is set to be full of electric energy, exploding wires are delivered to by servo-control mechanism
With internal capacitance certain distance, the internal capacitance electric discharge of main control unit driving triggers circuit makes quick-fried under the control of discharge pulse
By instantaneous pressure high current frequency spectrum resonance occurs for fried silk, now, underground by the part shale of discharge-induced explosion impact shock,
Many laminated structure of shale faces due to itself having, in the presence of stress, can make it along bed plane, continue to produce minute fissure, and
Constantly extend to distal end.The permeability of the part shale can be thus effectively improved, so as to reach improvement reservoir permeability
Purpose.
Brief description of the drawings
Fig. 1 shows the structural representation of the transformation device of the shale frequency spectrum resonance reservoir according to the present invention.
Fig. 2 shows the schematic diagram of high-voltage pulse generator.
Fig. 3 shows Marx generator schematic diagrams.
Fig. 4 shows S2BM generator schematic diagrams.
Fig. 5 shows system entire block diagram.
Fig. 6 shows the structure of a preferred embodiment of the transformation device of the shale frequency spectrum resonance reservoir according to the present invention
Schematic diagram.
Embodiment
The transformation device of reservoir from figure 1 it appears that this shale frequency spectrum resonates, it includes ground power supply and control system
System, armored cable, servo-control mechanism, underground frequency spectrum resonating member；Ground power supply includes power supply and master control list with control system
Member, underground frequency spectrum resonating member includes high-voltage pulse generator, exploding wires and triggers circuit；Main control unit by armored cable with
The voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse of underground by the high-voltage pulse generator connection of underground, main control unit
Generator, makes the internal capacitance for the triggers circuit being connected with high-voltage pulse generator be full of electric energy, exploding wires pass through SERVO CONTROL
Mechanism is delivered to and internal capacitance certain distance, the internal capacitance electric discharge of main control unit driving triggers circuit, in the control of discharge pulse
Make exploding wires under system by instantaneous pressure high current, occur frequency spectrum resonance.
The voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse generator of underground by the present invention by main control unit,
The internal capacitance for the triggers circuit being connected with high-voltage pulse generator is set to be full of electric energy, exploding wires are delivered to by servo-control mechanism
With internal capacitance certain distance, the internal capacitance electric discharge of main control unit driving triggers circuit makes quick-fried under the control of discharge pulse
By instantaneous pressure high current frequency spectrum resonance occurs for fried silk, now, underground by the part shale of discharge-induced explosion impact shock,
Many laminated structure of shale faces due to itself having, in the presence of stress, can make it along bed plane, continue to produce minute fissure, and
Constantly extend to distal end.The permeability of the part shale can be thus effectively improved, so as to reach improvement reservoir permeability
Purpose.
In addition, the exploding wires are wire or tinsel.
In addition, as shown in figure 3, the high-voltage pulse generator be Marx generators, it include ignitron, thyratron, very
Empty trigger switch, gap and pseudospark switch.Marx generators are a kind of exemplary circuit configurations of the pulse power, contrast tradition
The commutation inversion pulse power, its is simple in construction, and autgmentability is high, causes it in many need the low advantage of input voltage class requirement
The occasion of therefore high pulse power technology is asked to suffer from being widely applied.
Cn is storage capacitor in Fig. 3, and S is high-voltage switch gear, and r, Z are current-limiting resistance, and Vdc is charge power supply.
Marx generators realize the principle of energy compression and high voltage output be control storage capacitor in the course of the work simultaneously
Connection charging, discharged in series.Traditional Marx generators often use gas switch as main switching device, mainly including ignitron
(Ignitron), thyratron (Thyratron), Triggered Vacuum Switch (TVS), gap (Spark Gap) and pseudospark switch
(PSS) etc., hundreds of kilovolts of high-voltage pulse output can be obtained.Although the pressure-resistant of such switch can reach kilovolts up to a hundred,
It is that volume, weight are larger, processing, installs complicated, the defect such as ablation of electrode limits the longevity of Marx generators in the course of work
Life, reduces pulse recurrence frequency, and needs to be equipped with special switch triggering circuit and rare gas supply equipment.
In addition, as shown in figure 4, the high-voltage pulse generator is S2BM generators.
S2BM (Solid-State Bipolar Marx) generator is using Marx generators as basic model, using partly leading
Body switch is as main switch, and by the adjustment and optimization of structure, realization output pulse multi-parameter is adjustable, pulse polarity is variable
Etc. demand.Its schematic diagram is as shown in Figure 4.
The shale frequency spectrum resonance generator of this Project design uses S2BM high-voltage pulse generators, system is divided into two portions
Point, well-surface part and underground part.Well-surface part is ground power supply and control system, is passed through using 220V (or 380v) civil power
Power supply (needing to be boosted when as needed) is provided for underground part after rectification, while governor circuit is also disposed in well
On；Underground part places S2BM generators, exploding wires and triggers circuit, realize pulses generation, and its primary structure is as shown in Figure 4.
It is as shown in Figure 5 based on shale frequency spectrum resonance reservoir reconstruction system component devices schematic diagram.
In addition, as shown in fig. 6, the transformation device also includes current detecting unit, its internal capacitance phase with triggers circuit
Whether the internal capacitance for connecting to detect triggers circuit is full of electric energy.In Fig. 6：1st, ground power supply and control system 2, armored cable 3,
Sleeve pipe 4, current detecting unit 5, transmitting transducer 6, preforation tunnel
In addition, laying sleeve pipe at shale, main control unit connection armored cable is resonated underground frequency spectrum by armored cable
In unit tripping in shale well.
In addition, power supply includes rectifying part, the alternating current of output is after rectifying part by main control unit control.
A kind of method of work of the transformation device of shale frequency spectrum resonance reservoir is additionally provided, is comprised the following steps：
(1) power supply, main control unit, servo-control mechanism are arranged on shale well；
(2) sleeve pipe is laid in shale well, main control unit connection armored cable is resonated underground frequency spectrum by armored cable single
In first tripping in shale well；
(3) voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse generator of underground by main control unit, is made and height
The internal capacitance of the connected triggers circuit of impulse generator is pressed to be full of electric energy；
(4) exploding wires are delivered to and internal capacitance certain distance by servo-control mechanism；
(5) the internal capacitance electric discharge of main control unit driving triggers circuit, exploding wires are passed through under the control of discharge pulse
Instantaneous pressure high current, occurs frequency spectrum resonance.
In addition, in the step (3), current detecting unit is connected with the internal capacitance of triggers circuit, to detect triggering electricity
Whether the internal capacitance on road is full of electric energy.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not made to the present invention, it is every according to
Any simple modification, equivalent variations and the modification made according to the technical spirit of the present invention to above example, still belong to the present invention
The protection domain of technical scheme.
Claims (9)
- The transformation device of reservoir 1. a kind of shale frequency spectrum resonates, it is characterised in that：It includes ground power supply and control system, armouring Cable, servo-control mechanism, underground frequency spectrum resonating member；Ground power supply includes power supply and main control unit, underground with control system Frequency spectrum resonating member includes high-voltage pulse generator, exploding wires and triggers circuit；Main control unit passes through armored cable and underground High-voltage pulse generator is connected, and the voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse of underground to occur by main control unit Device, makes the internal capacitance for the triggers circuit being connected with high-voltage pulse generator be full of electric energy, exploding wires pass through servo-control mechanism Deliver to and internal capacitance certain distance, the internal capacitance electric discharge of main control unit driving triggers circuit, under the control of discharge pulse Make exploding wires by instantaneous pressure high current, occur frequency spectrum resonance.
- The transformation device of reservoir 2. shale frequency spectrum according to claim 1 resonates, it is characterised in that：The exploding wires are gold Belong to silk or tinsel.
- The transformation device of reservoir 3. shale frequency spectrum according to claim 1 resonates, it is characterised in that：The high-voltage pulse hair Raw device is Marx generators, and it includes ignitron, thyratron, Triggered Vacuum Switch, gap and pseudospark switch.
- The transformation device of reservoir 4. shale frequency spectrum according to claim 3 resonates, it is characterised in that：The high-voltage pulse hair Raw device is S2BM generators.
- The transformation device of reservoir 5. shale frequency spectrum according to claim 4 resonates, it is characterised in that：The transformation device is also wrapped Current detecting unit is included, whether the internal capacitance that it is connected to detect triggers circuit with the internal capacitance of triggers circuit is fully charged Energy.
- The transformation device of reservoir 6. shale frequency spectrum according to claim 1 resonates, it is characterised in that：Set is laid at shale Pipe, main control unit connection armored cable, by armored cable by the frequency spectrum resonating member tripping in shale well of underground.
- The transformation device of reservoir 7. shale frequency spectrum according to claim 1 resonates, it is characterised in that：Power supply includes rectification part Point, the alternating current of output is after rectifying part by main control unit control.
- 8. a kind of method of work of the transformation device of shale frequency spectrum resonance reservoir according to claim 1, it is characterised in that： Comprise the following steps：(1) power supply, main control unit, servo-control mechanism are arranged on shale well；(2) sleeve pipe, main control unit connection armored cable, by armored cable by under the frequency spectrum resonating member of underground are laid in shale well Enter in shale well；(3) voltage of power supply is changed into adjustable voltage to drive the high-voltage pulse generator of underground by main control unit, is made and high-tension pulse The internal capacitance for rushing the connected triggers circuit of generator is full of electric energy；(4) exploding wires are delivered to and internal capacitance certain distance by servo-control mechanism；(5) the internal capacitance electric discharge of main control unit driving triggers circuit, makes exploding wires pass through moment under the control of discharge pulse High-voltage great-current, occurs frequency spectrum resonance.
- 9. the method for work of the transformation device of shale frequency spectrum resonance reservoir according to claim 8, it is characterised in that：It is described In step (3), current detecting unit is connected with the internal capacitance of triggers circuit, to detect whether the internal capacitance of triggers circuit fills Full electric energy.
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Cited By (7)
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| CN108915659A (en) * | 2018-07-27 | 2018-11-30 | 长江大学 | A kind of low frequency waterpower pulse fracturing tool |
| CN110185421A (en) * | 2019-05-24 | 2019-08-30 | 龚雨诗 | A kind of recovering device and method of shale gas |
| CN110485959A (en) * | 2019-08-21 | 2019-11-22 | 中国地质调查局油气资源调查中心 | A kind of shale oil gas microwave resonance impact collaboration yield-increasing technology method |
| WO2021238055A1 (en) * | 2020-05-29 | 2021-12-02 | 中国华能集团有限公司 | Modification device for natural gas hydrate resonance reservoir |
| WO2021239149A1 (en) * | 2020-05-29 | 2021-12-02 | 中国华能集团清洁能源技术研究院有限公司 | System and method using resonance shockwaves to transform coalbed methane reservoir |
| CN116927697A (en) * | 2023-09-01 | 2023-10-24 | 中国矿业大学 | Electromagnetic excitation rock breaking device with multistage amplification coupling vibration |
| CN116927697B (en) * | 2023-09-01 | 2024-07-26 | 中国矿业大学 | Electromagnetic excitation rock breaking device with multistage amplification coupling vibration |
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| CN108915659A (en) * | 2018-07-27 | 2018-11-30 | 长江大学 | A kind of low frequency waterpower pulse fracturing tool |
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| CN110185421A (en) * | 2019-05-24 | 2019-08-30 | 龚雨诗 | A kind of recovering device and method of shale gas |
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| WO2021239149A1 (en) * | 2020-05-29 | 2021-12-02 | 中国华能集团清洁能源技术研究院有限公司 | System and method using resonance shockwaves to transform coalbed methane reservoir |
| CN116927697A (en) * | 2023-09-01 | 2023-10-24 | 中国矿业大学 | Electromagnetic excitation rock breaking device with multistage amplification coupling vibration |
| CN116927697B (en) * | 2023-09-01 | 2024-07-26 | 中国矿业大学 | Electromagnetic excitation rock breaking device with multistage amplification coupling vibration |
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