CN211144466U - Multistage circulation degassing device - Google Patents
Multistage circulation degassing device Download PDFInfo
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- CN211144466U CN211144466U CN201922019563.6U CN201922019563U CN211144466U CN 211144466 U CN211144466 U CN 211144466U CN 201922019563 U CN201922019563 U CN 201922019563U CN 211144466 U CN211144466 U CN 211144466U
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Abstract
The utility model belongs to the technical field of oil gas borehole operation, a multistage circulation degasser is disclosed, it includes the buffer tank, buffer tank one end is equipped with the feed liquor pipe, other end upper portion is equipped with the main gas pipe, still include the agitator tank, set up through circulation inlet tube and circulation outlet pipe intercommunication between agitator tank and the buffer tank in order to realize the fluid through the circulation inlet tube, the circulation of circulation outlet pipe between agitator tank and buffer tank, the upper portion of agitator tank still passes through the pipeline and sets up with main gas pipe intercommunication, it has a drain pipe to be external on the circulation outlet pipe, still be equipped with a discharge pump on the drain pipe. The utility model discloses a two gas-liquid separation processes, one is the separation process of free gas in the buffer tank, and one is the stirring separation and the vacuum separation process of bubble in the liquid in the agitator tank, and the fluid after the stirring separation can flow back to in the buffer tank and be inhaled in the agitator tank once more, carries out the carminative process of multistage circulation, has improved the separation efficiency of gas in the flow back liquid.
Description
Technical Field
The utility model belongs to the technical field of oil gas well borehole operation, be applicable to the degasification process among the oil gas well output exhaust-gas treatment process, especially a multistage circulation degasser.
Background
After the oil and gas well is perforated, due to the sufficient energy of the stratum, fluid flows out of the stratum and returns to the ground; or after acid fracturing construction, the fluid enters the well bore and returns to the ground due to the opening of the formation diversion channel. In the part of the fluid, part of VOCs and H are entrained2S and other toxic and harmful gases or alkane combustible gases are directly discharged without treatment, so that flash explosion accidents are easily caused, and casualties and property loss are caused. Therefore, this portion of the gas entrained in the fluid must be treated.
Gas-liquid separation is required before the harmful gases entrained in the fluid are treated. At present, the method used in oil and gas wells on site adopts a gas-liquid two-phase separator for separation. However, the efficiency of separating gas by the device is low, and the device mainly separates partial free gas and cannot achieve good separation effect on bubbles mixed in liquid. In the process of separating gas, in order to ensure that free gas can be separated, the pressure in the separation tank needs to be controlled, so that the device belongs to a pressure container in the working process, pressure detection is needed, certain danger exists, and dangerous accidents are easily caused by improper operation. Moreover, the whole gas-liquid two-phase separator device is large, great trouble is brought to the disassembling and assembling work, and the device is limited by the road transportation condition under certain conditions and is not beneficial to the application of the device.
Therefore, a degassing device is needed to improve the gas-liquid separation efficiency in the flowback fluid of the oil and gas well, so as to improve the treatment effect of the toxic and harmful gases.
Disclosure of Invention
The utility model aims to solve the technical problem and provide a multistage circulation degasser that compact structure, high-efficient separation, occupation of land are less, be convenient for transport.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a multistage circulation degasser, including the buffer tank, buffer tank one end is equipped with the feed liquor pipe, other end upper portion is equipped with the main gas pipe, still include the agitator tank, set up through circulation inlet tube and circulation outlet pipe intercommunication between agitator tank and the buffer tank in order to realize the fluid through the circulation inlet tube, the circulation of circulation outlet pipe between agitator tank and buffer tank, the upper portion of agitator tank still passes through pipeline and main gas pipe intercommunication setting, it has a drain pipe to connect outward on the circulation outlet pipe, still be equipped with a drainage pump on the drain pipe. Further, the circulation inlet pipe is connected between the bottom of the stirring tank and the bottom of the buffer tank, and the circulation outlet pipe is connected between the middle part of the outer wall of the stirring tank and the middle lower part of the buffer tank. Further, multistage circulation degasser still includes vacuum pump and pressure release jar, and vacuum pump one end is connected with the upper portion of agitator tank through the vacuum exhaust tube, and the other end is connected with the pressure release jar through connecting the trachea, and the pressure release jar is gone into to main trachea through the blast pipe. Furthermore, buffer tank, agitator tank, flowing back pump, vacuum pump and pressure release jar integration are on the support.
The multistage circulating degassing device comprises a buffer tank, an agitator tank, a vacuum pump, a pressure relief tank, a liquid discharge pump, a liquid inlet pipe, a circulating outlet pipe, a main gas pipe, a vacuum pumping pipe, a connecting gas pipe, an exhaust pipe, a liquid discharge pipe, an agitator motor, a vacuum pump motor, a support and a control cabinet.
The multistage circulating degasser mainly comprises two gas-liquid separation processes, one is a separation process of free gas in the buffer tank, and the other is a stirring separation and vacuum separation process of bubbles in liquid in the stirring tank. One end of the buffer tank is connected with the liquid inlet pipe, the other end of the buffer tank is connected with the main gas pipe, and the middle part of the buffer tank is connected with the circulating inlet pipe and the circulating outlet pipe. The well head return liquid firstly enters the buffer tank, and when fluid enters the buffer tank, free gas automatically escapes out due to the increase of space and enters the main gas pipe.
The bottom of the stirring tank is respectively connected with the buffer tank through a circulating inlet pipe and the side surface of the stirring tank through a circulating outlet pipe; the upper surface of the stirring tank is connected with a vacuum pump through a vacuum exhaust pipe; the vacuum pump is connected with the pressure relief tank through a connecting air pipe; the exhaust pipe extends out of the pressure relief tank and then is connected into the main air pipe; the vacuum pump is driven by a vacuum pump motor to work, and the stirring tank is driven by a stirring motor to work. In the working process, the vacuum pump pumps the stirring pipe into a vacuum state through the vacuum exhaust pipe, so that the fluid in the buffer tank is pumped into the stirring tank; in the stirring tank, under the work of a stirring motor, the fluid is stirred and scattered, so that bubbles can overflow, and the bubbles can float due to the vacuum state in the stirring tank; the separated gas passes through a vacuum exhaust pipe, then a vacuum pump, a connecting gas pipe, a pressure relief tank and finally an exhaust pipe and enters a main gas pipe; the fluid stirred and separated in the stirring tank enters the buffer tank through the circulation outlet pipe, and is sucked into the stirring tank again together with the fluid in the buffer tank, so that the multistage circulation exhaust process is carried out.
The liquid discharge pump is connected to the circulation outlet pipe through a liquid discharge pipe; the control cabinet controls the start and stop of each motor through electric signals. When the buffer tank is about to be filled with the liquid in a circulating manner, the liquid discharge pump is started to discharge the liquid through the liquid discharge pipe and the circulating outlet pipe, and at the moment, the circulating degassing process of the whole device is continuously carried out. And when the liquid level in the buffer tank is reduced to a certain height, the liquid discharge pump is closed, and liquid discharge is stopped.
All components of the whole device are integrated on the bracket, so that the transportation and management are convenient.
The utility model has the advantages that: this multistage circulation degasser passes through the free separation of buffer tank and the stirring separation of agitator tank, the vacuum separation operation, realize gaseous twice separation, and through the circulation of liquid in buffer tank and the agitator tank, realize gaseous multistage separation, thereby improve the separation efficiency of gas in the flowback liquid, and whole device passes through the electric control of switch board, convenient management, integrated to unified support on, be convenient for transport, guarantee practicality and the application effect of this multistage circulation degasser in oil gas well gas separation.
Drawings
FIG. 1 is an overall external view of the present invention;
FIG. 2 is a schematic diagram of the operation of the present invention;
FIG. 3 is another side external view of the present invention;
fig. 4 is a front view of the present invention;
fig. 5 is a top view of the present invention;
fig. 6 is a rear view of the present invention.
In the figure: 1. a buffer tank; 2. a stirring tank; 3. a vacuum pump; 4. a pressure relief tank; 5. a liquid discharge pump; 6. a liquid inlet pipe; 7. a circulation inlet pipe; 8. a circulation outlet pipe; 9. a main air pipe; 10. a vacuum exhaust tube; 11. connecting an air pipe; 12. an exhaust pipe; 13. a liquid discharge pipe; 14. a stirring motor; 15. a vacuum pump motor; 16. a support; 17. a control cabinet.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
referring to fig. 1 to 6, the utility model provides a pair of multistage circulation degasser, including buffer tank 1, agitator tank 2, vacuum pump 3, pressure release jar 4, fluid-discharge pump 5, feed liquor pipe 6, circulation inlet pipe 7, circulation outlet pipe 8, main trachea 9, vacuum exhaust tube 10, connecting pipes 11, blast pipe 12, fluid-discharge tube 13, agitator motor 14, vacuum pump motor 15, support 16, switch board 17. One end of the buffer tank 1 is connected with the liquid inlet pipe 6, the other end of the buffer tank is connected with the main gas pipe 9, and the middle part of the buffer tank is connected with the circulating inlet pipe 7 and the circulating outlet pipe 8. The wellhead return liquid firstly enters the buffer tank 1 through the liquid inlet pipe 6. Free gas escapes from the buffer tank 1 into the main gas pipe 9. The bottom of the stirring tank 2 is connected with a circulation inlet pipe 7, and the side surface is connected with a circulation outlet pipe 8, and the connection with the buffer tank 1 is realized through the two pipelines. The upper surface of the stirring tank 2 is connected with a vacuum pump 3 through a vacuum pumping pipe 10. The vacuum pump 3 is connected with the pressure relief tank 4 through a connecting air pipe 11. The exhaust pipe 12 extends from the pressure relief tank 4 and then is connected to the main air pipe 9. The vacuum pump 3 is driven by a vacuum pump motor 15 to work, and the stirring tank 2 is driven by a stirring motor 14 to work. The drain pump 5 is connected to the circulation outlet pipe 8 via a drain pipe 13.
During operation, the gas in the buffer tank 1 freely escapes and enters the main gas pipe 9. The vacuum pump 3 evacuates the inside of the stirring tank 2 into a vacuum state through the vacuum exhaust pipe 10, and sucks the liquid in the buffer tank 1 into the stirring tank 2 through the circulation inlet pipe 7. And the liquid is stirred under the driving of the stirring motor 14, so that the bubbles mixed in the liquid are gathered and overflow. And in the vacuum state, the bubbles float to free the liquid surface. The separated gas enters the vacuum pump 3 through the vacuum exhaust pipe 10, enters the pressure relief tank 4 through the connecting gas pipe 11, and then is merged into the main gas pipe 9 through the exhaust pipe 12. The liquid stirred and separated in the stirring tank 2 flows back into the buffer tank 1 through the circulation outlet pipe 8, is mixed with the liquid in the buffer tank 1, and is sucked into the stirring tank 2 again to perform a multi-stage circulation exhaust process. When the buffer tank 1 is filled with the circulation, the liquid discharge pump 5 is started to discharge the liquid into the liquid storage tank through the liquid discharge pipe 13. When the liquid level in the buffer tank 1 is reduced to a certain height, the liquid discharge pump 5 is closed, and liquid discharge is stopped. In the whole working process, the control cabinet 17 controls the start and stop of each motor through electric signals. The whole device is integrated into the bracket 16, so that the hoisting, transportation and management are convenient.
It is only above that the utility model discloses the most representative embodiment, all the foundation the utility model discloses impartial change and the modification of doing in the application for patent scope all should belong to the utility model discloses a coverage.
Claims (4)
1. The utility model provides a multistage circulation degasser, including the buffer tank, buffer tank one end is equipped with the feed liquor pipe, other end upper portion is equipped with the main gas pipe, a serial communication port, still include the agitator tank, set up through circulation inlet tube and circulation outlet pipe intercommunication between agitator tank and the buffer tank in order to realize the fluid through the circulation inlet tube, the circulation of circulation outlet pipe between agitator tank and buffer tank, the upper portion of agitator tank still passes through pipeline and main gas pipe intercommunication setting, it has a drain pipe to connect outward on the circulation outlet pipe, still be equipped with a drain pump on the drain pipe.
2. The multistage cyclic degassing apparatus of claim 1 wherein the circulation inlet pipe is connected between the bottom of the agitation tank and the bottom of the surge tank, and the circulation outlet pipe is connected between the middle of the outer wall of the agitation tank and the middle and lower portion of the surge tank.
3. The multistage cyclic degassing apparatus according to claim 1, further comprising a vacuum pump and a pressure relief tank, wherein one end of the vacuum pump is connected to the upper portion of the stirring tank through a vacuum pumping pipe, the other end of the vacuum pump is connected to the pressure relief tank through a connecting gas pipe, and the pressure relief tank is connected to the main gas pipe through a gas exhaust pipe.
4. The multi-stage cyclic degassing apparatus of claim 2 wherein the buffer tank, agitator tank, drain pump, vacuum pump and pressure relief tank are integrated on a rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019563.6U CN211144466U (en) | 2019-11-21 | 2019-11-21 | Multistage circulation degassing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019563.6U CN211144466U (en) | 2019-11-21 | 2019-11-21 | Multistage circulation degassing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211144466U true CN211144466U (en) | 2020-07-31 |
Family
ID=71774824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922019563.6U Active CN211144466U (en) | 2019-11-21 | 2019-11-21 | Multistage circulation degassing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211144466U (en) |
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2019
- 2019-11-21 CN CN201922019563.6U patent/CN211144466U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210726 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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| TR01 | Transfer of patent right |