CN215807899U - Quick-operation joint device suitable for shale gas external transport gas source gas lift - Google Patents
Quick-operation joint device suitable for shale gas external transport gas source gas lift Download PDFInfo
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- CN215807899U CN215807899U CN202122406531.9U CN202122406531U CN215807899U CN 215807899 U CN215807899 U CN 215807899U CN 202122406531 U CN202122406531 U CN 202122406531U CN 215807899 U CN215807899 U CN 215807899U
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Abstract
The utility model relates to the technical field of gas production in gas fields, and particularly discloses a quick connector device suitable for shale gas external gas conveying source gas lift. By adopting the technical scheme provided by the utility model, the problems that in the prior art, the quantity of equipment required for extracting the gas lift gas source is large, the process flow is complex, the process progress is easy to lag due to equipment failure, and the production efficiency of the shale gas well is influenced can be solved. The method is mainly used for shale gas exploitation gas lift to exploit residual gas in shale gas wells.
Description
Technical Field
The utility model relates to the technical field of gas production in gas fields, in particular to a quick connector device suitable for a shale gas external gas transmission source gas lift.
Background
When the shale gas well is developed to the middle and later stages, the formation pressure of the shale gas well is reduced, the productivity is reduced, the liquid carrying capacity of gas is weakened, the phenomenon of accumulated liquid in a shaft is gradually prominent, and the production of self-spraying entrained liquid cannot be realized. The gas lift can lift liquid in the well by injecting high-pressure gas into a shaft in a short time, and is suitable for the recovery of a water flooded well, drainage assistance and gas reservoir drainage.
At present, a gas source used for gas lift is nitrogen, and nitrogen in air is purified through a gas lift truck. The process comprises the steps of extracting air through an air machine, extracting nitrogen in the air, then feeding the air into a cold dryer through a pipeline, separating liquid in the cold dryer, purifying the nitrogen, then feeding the nitrogen into a gas storage tank, pressurizing the nitrogen through a compressor, and injecting the nitrogen into a gas well. By adopting the nitrogen gas source gas lift, the quantity of equipment required for extracting nitrogen from air is large, the extraction flow is complex, and if one equipment fails, the operation of the whole process flow is influenced, so that the process progress is delayed, and the production efficiency of the shale gas well is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quick connector device suitable for gas lift of a shale gas external gas transmission source, and aims to solve the problems that in the prior art, the quantity of required equipment for extracting a gas lift gas source is large, the process flow is complex, the process progress is delayed easily due to equipment failure, and the production efficiency of a shale gas well is influenced.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a quick-operation joint device suitable for shale gas outer gas transmission source gas lift, includes air inlet pipeline, exhaust pipe line and valve, the valve sets up between air inlet pipeline and exhaust pipe line, and air inlet pipeline and well head outer gas transmission line switch-on, exhaust pipe line intercommunication gas lift car.
Technical principle and beneficial effect compared with the prior art:
by adopting the technical scheme, when the accumulated liquid in the shale gas well needs to be lifted by using the gas lift, the valve between the gas inlet pipeline and the gas exhaust pipeline is only required to be opened, the shale gas entering the gas inlet pipeline from the wellhead external transmission pipeline can flow into the gas exhaust pipeline through the valve, and then enters the gas lift vehicle through the gas exhaust pipeline to be stored in a gas source, so that the shale gas mined from the shale gas well can be directly used as a gas lift gas source by the gas lift vehicle, and the nitrogen is not required to be extracted from the air through an air engine field to be used as the gas source.
This quick-operation joint device suitable for shale gas external transport gas source gas lift compares in prior art:
1. shale gas mined from the shale gas well can be directly used as a gas source, so that the stability of the gas source is ensured;
2. the field nitrogen extraction is not required to be carried out by using equipment such as an air machine and the like, so that the complex equipment and extraction flow are saved, and the process flow is simpler;
3. due to the fact that the process flow is simple, the shale gas exploitation progress is not easily delayed due to equipment faults, and the production efficiency of shale gas exploitation is effectively improved.
Further, still include the pipe joint, the pipe joint is connected on the blast pipe line, is connected with the manometer on the pipe joint.
Has the advantages that: set up the pipe joint on the blast pipe line and be used for installing the manometer, be favorable to observing the pressure condition of pipeline in the gas lift course of working as the gas lift air supply using shale gas to judge whether the pipeline leaks gas.
Further, the exhaust pipeline is connected with the gas lift vehicle in a threaded manner.
Has the advantages that: this scheme of adoption, it is more convenient, swift when connecting exhaust pipe line and gas lift car, and the screw thread connection compares in other detachable connection methods such as buckle connection, and the gas tightness is more good, can prevent effectively that the shale gas in the pipeline from taking place to leak at exhaust pipe line and gas lift car junction.
Further, the valve is a gate valve.
Has the advantages that: this scheme of adoption compares in other shut-off valves such as stop valve, and the valve body size of gate valve along the air current direction is little, and flow resistance is little, is favorable to shale gas to flow fast in the valve body.
Furthermore, the valve is connected with the air inlet pipeline and the exhaust pipeline in a flange connection mode.
Has the advantages that: this scheme of adoption for installation and the dismantlement between valve and the pipeline of admitting air and the exhaust pipe line are all more convenient, and flange joint's intensity is high and sealing performance is good, can effectively guarantee the transport effect of shale gas.
Further, the inlet line is collinear with the axis of the outlet line.
Has the advantages that: the axes of the gas inlet pipeline and the gas exhaust pipeline are arranged on the same straight line, so that the flowing obstruction of gas can be reduced when shale gas is conveyed, and the gas flow rate is effectively ensured.
Further, the valve is a stop valve.
Has the advantages that: compared with other shut-off valves such as a gate valve, on one hand, the shut-off valve is better in closing tightness, so that the valve can be tightly closed when shale gas is not conveyed; on the other hand, because the stop valve has the directionality when installing, so the shale gas in the pipeline can not take place reverse flow at the stop valve, can avoid shale gas from the gas lift truck to flow back to in the well head defeated pipeline.
Further, a voltage stabilizer is arranged on the exhaust pipeline.
Has the advantages that: the pressure stabilizer is arranged on the exhaust pipeline, so that the shale gas pressure conveyed to the gas lift car is more stable, and the gas lift car is more favorable for using the shale gas to complete subsequent gas lift operation.
Furthermore, the screw thread junction of exhaust pipe line and gas lift car scribbles sealed glue.
Has the advantages that: because the screw thread connection is difficult to completely eliminate the gap at the connection position, the shale gas leakage in the conveying process can be effectively prevented by coating the sealing glue at the screw thread connection position of the exhaust pipeline and the gas lift truck.
Further, the pressure gauge arranged on the pipeline joint is an explosion-proof pressure gauge.
Has the advantages that: by adopting the explosion-proof pressure gauge, the explosion pressure generated by shale gas in the shell once explosion is caused can be borne, the heat energy generated by the explosion-proof pressure gauge can be effectively prevented from being smoothly spread outwards, and the heat energy can only be slowly diffused outwards at a tiny gap in the shell along an explosion-proof joint surface, so that explosion in a larger range can not be caused, and the safety of an operation site is ensured.
Drawings
FIG. 1 is a schematic view of a first embodiment of a quick connector apparatus suitable for gas lift of an external shale gas transportation source according to the present invention;
fig. 2 is a partial connection schematic diagram of a second embodiment of the quick coupling device for gas lift of an external shale gas transportation source according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a gate valve 1, an air inlet pipeline 2, an exhaust pipeline 3, a pipeline joint 4, an explosion-proof pressure gauge 5, a pressure stabilizer 6, a gas lift truck 7 and a wellhead external pipeline 8.
The first embodiment is as follows:
as shown in the attached drawing 1, the quick connector device suitable for shale gas external gas conveying source gas lift comprises a gate valve 1, an air inlet pipeline 2 and an exhaust pipeline 3, wherein the gate valve 1 is located between the air inlet pipeline 2 and the exhaust pipeline 3, the axes of the air inlet pipeline 2 and the exhaust pipeline 3 are located on the same straight line, the gate valve 1 is detachably connected with the air inlet pipeline 2 and the exhaust pipeline 3 through flanges respectively, the air inlet pipeline 2 is communicated with a wellhead external gas conveying pipeline 8, the exhaust pipeline 3 is connected with a gas lift vehicle 7 through a screw thread, and a sealant is coated at the joint of the exhaust pipeline 3 and the gas lift vehicle 7. The exhaust pipe 3 is provided with a pipe joint 4, the pipe joint 4 is provided with an explosion-proof pressure gauge 5, the explosion-proof pressure gauge 5 can monitor the air pressure in the pipe in real time so that field operation personnel can check whether the pipe leaks air or not, and the explosion injury can be reduced in the pressure gauge once the shale gas explosion happens, so that the safety of field operation is improved. The exhaust line 3 is also provided with a pressure stabilizer 6, and the pressure stabilizer 6 stabilizes the gas pressure before the shale gas is delivered to the gas lift truck 7.
By adopting the quick connector device suitable for the shale gas external gas conveying source gas lift, the shale gas mined in the shale gas well is conveyed to the gas lift truck 7 for storage, and the gas lift truck 7 utilizes the shale gas as a gas source to realize gas lift operation. Because the air inlet pipeline 2 is UNICOM with the outer defeated pipeline 8 of well head, consequently there is shale gas in the air inlet pipeline 2 all the time, open gate valve 1 back shale gas and flow through gate valve 1 from air inlet pipeline 2 promptly and get into exhaust pipe 3, shale gas can pass through stabiliser 6 before getting into gas lift car 7 through exhaust pipe 3, stabiliser 6 gets into gas lift car 7 again with the stable back shale gas of shale atmospheric pressure that flows through, more be favorable to gas lift car 7 to utilize the stable shale gas of this atmospheric pressure to accomplish follow-up gas lift operation.
In the process that the shale gas is conveyed by the exhaust pipeline 3 to enter the gas lift truck 7 and is used by the gas lift truck 7 to complete gas lift operation, the explosion-proof pressure gauge 5 arranged on the pipeline joint 4 arranged on the exhaust pipeline 3 monitors the shale gas pressure in the pipeline, so that field operators can judge whether the pipeline has gas leakage or not according to the display value of the explosion-proof pressure gauge 5, and if the pipeline has gas leakage, the pipeline can be overhauled in time, thereby avoiding resource waste, shale gas explosion and other safety accidents; even if explosion-proof pressure gauge 5 department in case takes place shale gas leakage explosion, explosion-proof pressure gauge 5 also can inject explosion pressure in its casing, prevents that the outside propagation of explosion heat energy from arousing bigger explosion accident.
Example two:
as shown in fig. 2, a quick coupling device suitable for gas lift of an external gas transportation source of shale gas is different from the first embodiment in that: a stop valve 91 is connected in parallel at the gate valve 1, an air inlet pipe 92 and an exhaust pipe 93 are connected to interfaces at two ends of the stop valve 91 through threads, the air inlet pipe 92 is communicated with an air inlet pipeline 2, and the exhaust pipe 93 is communicated with an exhaust pipeline 3.
By adopting the quick connector device suitable for the shale gas external gas conveying source gas lift, the shale gas mined in the shale gas well is conveyed to the gas lift truck 7 for storage, and the gas lift truck 7 utilizes the shale gas as a gas source to realize gas lift operation. Opening gate valve 1 and stop valve 91 simultaneously can increase the shale gas flow in exhaust pipe 3, realize the storage of shale gas in gas lift 7 fast, if need control the shale gas flow in exhaust pipe 3, then can close gate valve 1 or stop valve 91 selectively. And because stop valve 91 has the directionality when the installation, so use stop valve 91 can effectively prevent to take place the shale gas backward flow in the parallel line of gate valve 1 for the shale gas can only flow into branch blast pipe 92 through stop valve 91 from branch intake pipe 92, flows into exhaust pipe 3 afterwards and reaches gas lift car 7 and stores, utilizes.
Other processes for in-line transportation of shale gas are substantially consistent with the first embodiment.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, and these changes and modifications should be considered as the protection scope of the present invention, and these changes and modifications will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The utility model provides a quick-operation joint device suitable for shale gas external transport gas source gas lift which characterized in that: the quick-operation joint suitable for shale gas outer gas transmission source gas lift includes air inlet pipeline, exhaust pipe line and valve, the valve sets up between air inlet pipeline and exhaust pipe line, and air inlet pipeline and wellhead outer gas transmission line switch-on, exhaust pipe line intercommunication gas lift car.
2. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 1, wherein: still include the pipe joint, the pipe joint is connected on the blast pipe line, is connected with the manometer on the pipe joint.
3. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 1, wherein: the exhaust pipeline is connected with the gas lift truck in a threaded manner.
4. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 1, wherein: the valve is a gate valve.
5. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 4, wherein: the valve is connected with the air inlet pipeline and the exhaust pipeline in a flange connection mode.
6. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 5, wherein: the axes of the air inlet line and the exhaust line are on the same straight line.
7. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 1, wherein: the valve is a stop valve.
8. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 1, wherein: and a voltage stabilizer is arranged on the exhaust pipe line.
9. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 3, wherein: and a sealing glue is coated at the screw thread connection part of the exhaust pipeline and the gas lift truck.
10. The quick connector device suitable for the gas lift of the shale gas external transportation source according to claim 2, wherein: the pressure gauge arranged on the pipeline joint is an explosion-proof pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122406531.9U CN215807899U (en) | 2021-09-30 | 2021-09-30 | Quick-operation joint device suitable for shale gas external transport gas source gas lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122406531.9U CN215807899U (en) | 2021-09-30 | 2021-09-30 | Quick-operation joint device suitable for shale gas external transport gas source gas lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215807899U true CN215807899U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122406531.9U Active CN215807899U (en) | 2021-09-30 | 2021-09-30 | Quick-operation joint device suitable for shale gas external transport gas source gas lift |
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|---|---|
| CN (1) | CN215807899U (en) |
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2021
- 2021-09-30 CN CN202122406531.9U patent/CN215807899U/en active Active
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