CN114658388A - High-pressure natural gas wellhead depressurization filtering system - Google Patents
High-pressure natural gas wellhead depressurization filtering system Download PDFInfo
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- CN114658388A CN114658388A CN202210269582.8A CN202210269582A CN114658388A CN 114658388 A CN114658388 A CN 114658388A CN 202210269582 A CN202210269582 A CN 202210269582A CN 114658388 A CN114658388 A CN 114658388A
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- natural gas
- phase separator
- pressure
- filtration system
- pressure natural
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 238000001914 filtration Methods 0.000 title claims abstract description 59
- 239000003345 natural gas Substances 0.000 title claims abstract description 57
- 239000007789 gas Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000010865 sewage Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000002343 natural gas well Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 abstract description 12
- 239000007787 solid Substances 0.000 abstract description 10
- 238000009792 diffusion process Methods 0.000 abstract description 8
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 6
- 229930195733 hydrocarbon Natural products 0.000 abstract description 6
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 6
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 14
- 238000012544 monitoring process Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 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 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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Classifications
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- 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
- E21B43/34—Arrangements for separating materials produced by the well
-
- 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
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/35—Arrangements for separating materials produced by the well specially adapted for separating solids
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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)
- Cyclones (AREA)
Abstract
The invention provides a high-pressure natural gas wellhead pressure reduction filtering system which comprises a gas production tree, a primary pressure reduction filtering system and a secondary filtering system which are sequentially connected; the primary pressure reduction filtering system comprises a cyclone, a Laval nozzle, a centrifugal separator and a first diffusion pipe which are sequentially connected, the secondary filtering system comprises a three-phase separator, the bottom of the three-phase separator is connected with a water tank, one side of the three-phase separator is connected with an oil tank, and the other side of the three-phase separator is connected with a sewage discharge outlet of the centrifugal separator through a second diffusion pipe. The invention overcomes the problems of high cost, erosion resistance, easy ice blockage and the like of the traditional high-pressure natural gas wellhead pressure reducing valve, not only can effectively realize the pressure reduction of the high-pressure natural gas wellhead, but also can filter out solid particles, liquid particles, water, heavy hydrocarbon and other impurities carried by the high-pressure natural gas, and recover useful components, thereby protecting subsequent transportation equipment, reducing the erosion effect and prolonging the service life of the whole transportation system.
Description
Technical Field
The invention relates to a high-pressure natural gas wellhead depressurization filtering system, and belongs to the technical field of high-pressure natural gas exploitation.
Background
The newly-increased gas wells in China are mainly distributed in regions such as Sichuan, Xinjiang, Eldoss and the like, the gas wells in the regions are influenced by geological conditions, the gas wells generally have the characteristics of high pressure, high sulfur content and high yield, and in the early exploitation stage of the gas wells, the pressure is usually more than 30MPa and is far higher than the conveying pressure of a pipe network, and the pressure reduction of the wellhead of high-pressure natural gas is an important problem facing each high-pressure natural gas well site.
The cost of the wellhead pressure reducing valve applied to the traditional high-pressure natural gas well can reach hundreds of thousands, the service life of the pressure reducing valve is different from one month to three months under the erosion of solid particles flowing at a high speed, and the natural gas carrying water is easy to form natural gas hydrate due to the working conditions of high pressure and low temperature at the valve core, so that the valve is blocked, and the natural gas exploitation efficiency is greatly reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-pressure natural gas wellhead depressurization and filtration system which realizes depressurization and filtration of a high-pressure natural gas wellhead and can prolong the service life of a transportation system.
The invention is realized by the following technical scheme.
The invention provides a high-pressure natural gas wellhead pressure reduction filtering system which comprises a gas production tree, a primary pressure reduction filtering system and a secondary filtering system which are sequentially connected; the primary pressure reduction filtering system comprises a cyclone, a Laval nozzle, a centrifugal separator and a first diffusion pipe which are connected in sequence, the secondary filtering system comprises a three-phase separator, the bottom of the three-phase separator is connected with a water tank, one side of the three-phase separator is connected with an oil tank, and the other side of the three-phase separator is connected with a sewage discharge outlet of the centrifugal separator through a second diffusion pipe; and a dry gas outlet at the top of the three-phase separator and a dry gas outlet of the first diffusion pipe are both connected with an output pipeline.
And a first one-way valve is arranged on a sewage discharge outlet of the centrifugal separator.
And a cage type throttle valve and a first switch valve are arranged on a pipeline connecting a high-pressure natural gas outlet of the gas production tree and the cyclone.
And a first pressure gauge connected with a pipeline is arranged between the cage type throttle valve and the first switch valve.
And a dry gas outlet at the top of the three-phase separator is converged with a dry gas outlet of the first diffusion pipe and then connected with the flowmeter, and a fourth pressure gauge is arranged on a pipeline behind the flowmeter.
And a second pressure gauge is arranged on a dry gas outlet pipeline of the first diffusion pipe and is positioned in front of the flowmeter.
And a third pressure gauge and a second one-way valve are sequentially arranged on a dry gas outlet pipeline at the top of the three-phase separator, and the third pressure gauge and the second one-way valve are both positioned in front of the flowmeter.
And a second switch valve is arranged on a pipeline connecting the three-phase separator and the water tank.
And a third switch valve is arranged on a pipeline connecting the three-phase separator and the oil tank.
The first check valve is arranged in front of the second diffuser pipe and is adjacent to the sewage draining outlet.
The invention has the beneficial effects that: the problem of traditional high-pressure natural gas well head depressurization valve with high costs, not resistant erosion, easily take place ice and block up etc is overcome, can not only effectually realize high-pressure natural gas well head depressurization, can also filter the impurity such as solid particle, liquid particle, water, heavy hydrocarbon that high-pressure natural gas carried to retrieve useful composition, thereby protect subsequent transportation equipment, reduce the erosion effect, improve whole transportation system's life.
Drawings
FIG. 1 is a connection diagram of the present invention;
in the figure: 1-a gas production tree, 2-a jacketed throttling valve, 3-a first pressure gauge, 4-a first switching valve, 5-a first pressure reduction filtration system, 6-a cyclone, 7-a laval nozzle, 8-a centrifugal separator, 9-a first diffuser pipe, 10-a second pressure gauge, 11-a secondary filtration system, 12-a first check valve, 13-a second diffuser pipe, 14-a three-phase separator, 15-a second switching valve, 16-a water sump, 17-a third switching valve, 18-an oil tank, 19-a third pressure gauge, 20-a second check valve, 21-a flow meter, 22-a fourth pressure gauge, and 23-an output pipeline.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, a high-pressure natural gas wellhead pressure reduction filtration system comprises a gas production tree 1, a primary pressure reduction filtration system 5 and a secondary filtration system 11 which are connected in sequence; the primary pressure reduction filtering system 5 comprises a cyclone 6, a Laval nozzle 7, a centrifugal separator 8 and a first diffuser pipe 9 which are connected in sequence, the secondary filtering system 11 comprises a three-phase separator 14, the bottom of the three-phase separator 14 is connected with a water pool 16, one side of the three-phase separator 14 is connected with an oil tank 18, and the other side of the three-phase separator 14 is connected with a sewage discharge port of the centrifugal separator 8 through a second diffuser pipe 13; and a dry gas outlet at the top of the three-phase separator 14 and a dry gas outlet of the first diffuser pipe 9 are both connected with an output pipeline 23.
A first one-way valve 12 is arranged on the sewage discharge outlet of the centrifugal separator 8.
And a cage type throttle valve 2 and a first switch valve 4 are arranged on a pipeline connecting a high-pressure natural gas outlet of the gas production tree 1 and the cyclone 6.
And a first pressure gauge 3 connected with a pipeline is arranged between the cage type throttle valve 2 and the first switch valve 4.
And a dry gas outlet at the top of the three-phase separator 14 is converged with a dry gas outlet of the first diffuser pipe 9 and then connected with a flowmeter 21, and a fourth pressure gauge 22 is arranged on a pipeline behind the flowmeter 21.
And a second pressure gauge 10 is arranged on a dry gas outlet pipeline of the first diffuser pipe 9, and the second pressure gauge 10 is positioned in front of the flowmeter 21.
And a third pressure gauge 19 and a second one-way valve 20 are sequentially arranged on a dry gas outlet pipeline at the top of the three-phase separator 14, and the third pressure gauge 19 and the second one-way valve 20 are both positioned in front of the flowmeter 21.
And a second switch valve 15 is arranged on a pipeline connecting the three-phase separator 14 and the water tank 16.
And a third on-off valve 17 is arranged on a pipeline connecting the three-phase separator 14 with the oil tank 18.
The first check valve 12 is installed in front of the second diffuser pipe 13, adjacent to the sewage drain.
It can be understood that the secondary filtration system 11 is connected to the sewage outlet of the centrifugal separator 8 of the primary pressure reducing filtration system 5 to separate oil, water, solid particles and gas from the impurities discharged from the sewage outlet of the primary pressure reducing filtration system 5.
It will be appreciated that the dry gas outlet of the secondary filtration system 11 and the dry gas outlet of the primary pressure reducing filtration system 5 merge before the flow meter 21 and enter the gas line 23 after being metered by the flow meter 21.
It can be understood that the second diffuser pipe 13 is installed before the three-phase separator 14, and the pressure control inside the three-phase separator 14 is implemented such that the pressure of the natural gas dry gas pressurized by the first diffuser pipe 9 is lower than the pressure of the natural gas dry gas discharged from the secondary filtering system 11, so that the second check valve 15 can be smoothly opened.
The working engineering of the invention is as follows:
1. the method comprises the following steps that high-pressure natural gas is primarily depressurized to the designed inlet pressure of a primary depressurization filtering system 5 through a cage type throttling valve 2 after coming out of a gas production tree 1, the pressure of the depressurized natural gas is monitored by a first pressure gauge 3 and fed back to the cage type throttling valve 2, and the opening of the cage type throttling valve 2 is adjusted;
2. the natural gas after the preliminary depressurization enters a cyclone 6 of a primary depressurization filtration system 5 to obtain a certain circumferential speed, the natural gas is accelerated by a Laval nozzle 7, the speed of the natural gas is rapidly increased, the temperature is reduced, the pressure is reduced, moisture and partial heavy hydrocarbon in the natural gas are condensed into liquid drops, when the natural gas passes through a centrifugal separator 8, the liquid drops with heavier mass and solid particles have larger centrifugal force and move to a sewage discharge port of the centrifugal separator 8 along the inner wall of the centrifugal separator 8, and then the liquid drops enter a secondary filtration system 11 to be separated back;
3. the natural gas dry gas separated by the centrifugal separator 8 enters the first diffuser pipe 9 for pressurization and temperature rise, the pressure and the temperature of the natural gas dry gas reach the transportation pressure and the transportation temperature of a transportation pipeline, and then the natural gas dry gas is subjected to pressure measurement and metering by the second pressure gauge 10 and the flowmeter 21 and then enters the output pipeline 23;
4. water, oil, solid particles and a small part of natural gas moisture discharged from the centrifugal separator 8 enter the secondary filtering system 11, pass through the first check valve 12 and then are pressurized and conveyed to the three-phase separator 14 through the second diffuser pipe 13 for separation, the natural gas dry gas separated by the three-phase separator 14 is subjected to pressure measurement through the third pressure gauge 19, then is gathered with the natural gas dry gas discharged from the primary pressure reduction filtering system 5 through the second check valve 20, and then enters the output pipeline 23 after being measured through the flow meter 21;
5. the water and solid particle impurities separated from the three-phase separator 14 are discharged from the bottom outlet of the three-phase separator 14 to the water pool 16; the oil, heavy hydrocarbon and other substances separated from the three-phase separator 14 are discharged from the outlet at the middle part of the three-phase separator 14 to the oil tank 18 for further separation and recovery.
Examples
From the above, the invention is suitable for high-pressure natural gas wellhead depressurization and filtration, can realize separation and recovery of moisture, solid particles, oil and partial heavy hydrocarbon in natural gas, and specifically comprises the following steps:
the cage type throttle valve 2 is arranged at a high-pressure natural gas outlet of the gas production tree 1 and used for controlling the yield of a gas well and adjusting the bottom pressure.
The first switch valve 4 is arranged behind the cage type throttle valve 2 and in front of the primary pressure reduction filtering system 5, so that the whole system is closed emergently.
The primary pressure reduction filtering system 5 is formed by sequentially connecting a swirler 6, a Laval nozzle 7, a centrifugal separator 8 and a first diffuser pipe 9, high-pressure natural gas with circumferential speed is obtained through the swirler 6, the speed is rapidly increased after the high-pressure natural gas enters the Laval nozzle 7, and the pressure is reduced; the centrifugal separator 8 is used for separating impurities with heavier mass, and the first diffusion pipe 9 enables the natural gas to be back-pressurized and heated until the delivery pressure and the delivery temperature of the output pipeline 23 are reached.
The secondary filtering system 11 is connected with a sewage discharge outlet of the centrifugal separator 8 and consists of a first one-way valve 12, a second diffuser pipe 13, a three-phase separator 14, a third pressure gauge 19, a second one-way valve 20, a second switch valve 15, a water tank 16, a third switch valve 17 and an oil tank 18, wherein the first one-way valve 12 is installed at the sewage discharge outlet of the centrifugal separator 8, the second diffuser pipe 13 is installed in front of the three-phase separator 14 to realize pressure control inside the three-phase separator 14, so that the pressure of the natural gas dry gas pressurized by the first diffuser pipe 9 is smaller than the pressure of the natural gas dry gas discharged from the secondary filtering system 11, and the second one-way valve 15 can be opened smoothly; the first check valve 12 is used for preventing gas pressurized by the second diffuser pipe 13 from flowing back to the centrifugal separator 8, so that the separation efficiency of the centrifugal separator 8 is reduced; the three-phase separator 8 is arranged behind the second diffuser pipe 13, so that oil, water, solid particles and gas in impurities discharged from a sewage discharge outlet of the centrifugal separator 8 are separated, and the separated solid particles, water, oil or heavy hydrocarbon respectively enter a water pool 16 and an oil tank 18; the second switch valve 15 and the third switch valve 17 respectively control the periodic sewage discharge of the three-phase separator 8; the second check valve 20 is installed at the dry gas outlet section of the three-phase separator 14 in order to prevent backflow caused by the fact that the pressure of the dry gas of the natural gas from the primary pressure-reducing filter system 5 is higher than the pressure of the dry gas of the natural gas from the three-phase separator 14.
The dry gas outlet of the secondary filtering system 11 and the dry gas outlet of the primary pressure reduction filtering system 5 are merged before the flowmeter 21 and enter the gas pipeline 23 after being metered by the flowmeter 21.
The first pressure gauge 3 is arranged behind the cage type throttle valve 2 and in front of the first switch valve 4 and used for monitoring the pressure of the moisture in the natural gas entering the primary pressure reduction filtering system 5; the second pressure gauge 10 is arranged at a natural gas dry gas outlet of the primary pressure-reducing filtering system 5 and is used for monitoring the pressure of the dry gas outlet of the primary pressure-reducing filtering system 5; the third pressure gauge 19 is installed at the dry gas outlet of the three-phase separator 14 and used for monitoring the pressure of the dry gas outlet of the three-phase separator 14; a fourth pressure gauge 22 is installed behind the flow meter 21 and is used for monitoring the pressure of the dry natural gas entering the gas line 23.
The flowmeter 21 is installed between the second pressure gauge 10 and the fourth pressure gauge 22, and is used for regulating and metering the pressure of the natural gas dry gas from the primary pressure reduction filtering system 5 and the secondary filtering system 11.
Claims (10)
1. The utility model provides a high pressure natural gas well head filtration system that steps down, is including the gas production tree (1), one-level filtration system (5), secondary filtration system (11) that connect gradually, its characterized in that: the primary pressure reduction filtering system (5) comprises a cyclone (6), a Laval nozzle (7), a centrifugal separator (8) and a first diffuser pipe (9) which are sequentially connected, the secondary filtering system (11) comprises a three-phase separator (14), the bottom of the three-phase separator (14) is connected with a water pool (16), one side of the three-phase separator (14) is connected with an oil tank (18), and the other side of the three-phase separator (14) is connected with a sewage discharge port of the centrifugal separator (8) through a second diffuser pipe (13); and a dry gas outlet at the top of the three-phase separator (14) and a dry gas outlet of the first diffuser pipe (9) are both connected with an output pipeline (23).
2. The high pressure natural gas wellhead depressurization filtration system of claim 1, wherein: a first one-way valve (12) is arranged on a sewage discharge outlet of the centrifugal separator (8).
3. The high pressure natural gas wellhead depressurization filtration system of claim 1, wherein: and a cage sleeve type throttle valve (2) and a first switch valve (4) are arranged on a pipeline for connecting a high-pressure natural gas outlet of the gas production tree (1) with the swirler (6).
4. The high pressure natural gas wellhead depressurization filtration system of claim 3, wherein: and a first pressure gauge (3) connected with a pipeline is arranged between the cage type throttle valve (2) and the first switch valve (4).
5. The high pressure natural gas wellhead depressurization filtration system of claim 1, wherein: and a dry gas outlet at the top of the three-phase separator (14) is converged with a dry gas outlet of the first diffuser pipe (9) and then is connected with the flowmeter (21), and a fourth pressure gauge (22) is arranged on a pipeline behind the flowmeter (21).
6. The high pressure natural gas wellhead depressurization filtration system of claim 1, wherein: and a second pressure gauge (10) is arranged on a dry gas outlet pipeline of the first diffuser pipe (9), and the second pressure gauge (10) is positioned in front of the flowmeter (21).
7. The high pressure natural gas wellhead depressurization filtration system of claim 1, wherein: and a third pressure gauge (19) and a second one-way valve (20) are sequentially arranged on a dry gas outlet pipeline at the top of the three-phase separator (14), and the third pressure gauge (19) and the second one-way valve (20) are both positioned in front of the flowmeter (21).
8. The high pressure natural gas wellhead depressurization filtration system of claim 1, wherein: and a second switch valve (15) is arranged on a pipeline connecting the three-phase separator (14) and the water pool (16).
9. The high pressure natural gas wellhead depressurization filtration system of claim 1, wherein: and a third switch valve (17) is arranged on a pipeline connecting the three-phase separator (14) and the oil tank (18).
10. The high pressure natural gas wellhead depressurization filtration system of claim 2, wherein: the first check valve (12) is arranged in front of the second diffuser pipe (13) and is adjacent to the sewage draining outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269582.8A CN114658388A (en) | 2022-03-18 | 2022-03-18 | High-pressure natural gas wellhead depressurization filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269582.8A CN114658388A (en) | 2022-03-18 | 2022-03-18 | High-pressure natural gas wellhead depressurization filtering system |
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| Publication Number | Publication Date |
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| CN114658388A true CN114658388A (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210269582.8A Pending CN114658388A (en) | 2022-03-18 | 2022-03-18 | High-pressure natural gas wellhead depressurization filtering system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037629A (en) * | 2007-04-24 | 2007-09-19 | 胜利油田胜利工程设计咨询有限责任公司 | Natural gas ultrasonic dehydration method |
| CN204312994U (en) * | 2014-11-12 | 2015-05-06 | 中国石油天然气股份有限公司 | Natural gas production pipeline hydrops recovery unit |
| CN108979615A (en) * | 2018-07-27 | 2018-12-11 | 中国石油大学(北京) | Natural gas system is recycled in high pressure gas well completing test |
| CN209584136U (en) * | 2019-01-31 | 2019-11-05 | 成都顺和润博科技有限公司 | A kind of supersonic speed condensation separator |
-
2022
- 2022-03-18 CN CN202210269582.8A patent/CN114658388A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037629A (en) * | 2007-04-24 | 2007-09-19 | 胜利油田胜利工程设计咨询有限责任公司 | Natural gas ultrasonic dehydration method |
| CN204312994U (en) * | 2014-11-12 | 2015-05-06 | 中国石油天然气股份有限公司 | Natural gas production pipeline hydrops recovery unit |
| CN108979615A (en) * | 2018-07-27 | 2018-12-11 | 中国石油大学(北京) | Natural gas system is recycled in high pressure gas well completing test |
| CN209584136U (en) * | 2019-01-31 | 2019-11-05 | 成都顺和润博科技有限公司 | A kind of supersonic speed condensation separator |
Non-Patent Citations (1)
| Title |
|---|
| 高晓根: "超音速分离技术及在气田地面工程中的应用" * |
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Application publication date: 20220624 |