CN215632915U - Vortex drainage throttling gas production device - Google Patents
Vortex drainage throttling gas production device Download PDFInfo
- Publication number
- CN215632915U CN215632915U CN202122104059.3U CN202122104059U CN215632915U CN 215632915 U CN215632915 U CN 215632915U CN 202122104059 U CN202122104059 U CN 202122104059U CN 215632915 U CN215632915 U CN 215632915U
- Authority
- CN
- China
- Prior art keywords
- core rod
- cap
- lower core
- outer side
- gas production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a vortex drainage throttling gas production device, which belongs to the technical field of underground drainage gas production and comprises a delivery head, a fishing head, a lower core bar, a sealant barrel and an air tap from the upper end to the lower end in sequence, wherein a core bar sleeve is sleeved on the outer side of the lower core bar, and the lower core bar is connected with the core bar sleeve through a deblocking pin; the outer side of the core rod sleeve is provided with an upper slip, and the outer side of the lower core rod is also provided with a slip and a lower slip; the slips are arranged between the upper slips and the lower slips; a sealing rubber cylinder, an inclined tooth cap upper pressing cap and an inclined tooth cap seat are sequentially arranged on the outer side of the lower core rod below the lower slip; the inclined tooth cap base is fixed on the core rod cap, and the upper pressing cap of the inclined tooth cap is fixed on the outer side of the lower core rod through the inclined tooth cap base. The utility model can change the flowing form of the medium in the shaft and improve the liquid carrying capacity of the gas well, thereby reducing the accumulated liquid at the bottom of the well, reducing the pressure drop in the gas well and improving the yield of the gas well.
Description
Technical Field
The utility model belongs to the technical field of underground drainage gas production, and particularly relates to a vortex drainage throttling gas production device.
Background
Drainage and gas production are measures for solving the problems of excessive liquid accumulation or water production of a gas well shaft and a stratum near the bottom of a well and recovering the normal production of the gas well.
The water-draining gas-producing process with water-gas reservoir can be divided into three-stable water-draining gas-producing system for primary exploitation and artificial spraying-assisting process technology for secondary exploitation. The 'three-stable' drainage gas production system is a production system which aims at different production types and production characteristics of water-producing gas wells, and preferably optimizes the opening degree of a wellhead angle type throttle valve which enables the gas-water two-phase flow to have the best lifting efficiency, so that the gas-water yield, the wellhead flowing pressure and the gas-water ratio of the gas wells are kept relatively stable. The secondary exploitation process technology of the produced water gas reservoir is developed in the middle and later stages, and according to the characteristics of different types of produced water gas wells, the accumulated liquid in a shaft is removed by adopting a corresponding manual jet-assisted process, so that the normal gas production of the produced water gas wells is ensured, and the aims of slowing down the yield decrease of the gas reservoir and improving the recovery ratio are fulfilled.
The drainage gas production process commonly used on site mainly comprises the steps of preferably selecting tubular column drainage gas production, foam drainage gas production, sucker rod pump drainage gas production, gas lift drainage gas production, jet pump drainage gas production, electric submersible pump drainage gas production and the like. The drainage gas production process which is researched and perfected in the attack test mainly comprises gas acceleration pump drainage gas production, plunger gas lift drainage gas production, gas lift-foam discharge composite drainage gas production, gas lift-mechanical pumping composite drainage gas production, pressurization-gas lift-foam discharge composite drainage gas production and the like.
Along with the deep development of gas fields, the pressure of gas wells is reduced, the water yield is increased, the gas wells have serious liquid accumulation and even stop production, and the urgency of drainage and gas production work is increasingly prominent.
In view of the above, the present invention is particularly proposed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a vortex drainage throttling gas production device which can achieve the effects of changing the flowing form of a medium in a shaft and improving the liquid carrying capacity of a gas well, so that the accumulated liquid in the bottom of the well is reduced, the pressure drop in the gas well is reduced, and the yield of the gas well is improved.
In order to achieve the purpose, the vortex water-draining throttling gas production device provided by the utility model sequentially comprises a delivery head, a fishing head, a lower core rod, a sealant barrel and an air tap from the upper end to the lower end;
the center of the fishing head is penetrated with a connecting rod, and the outer side of the fishing head is provided with a rotational flow blade; two ends of the connecting rod protrude out of the fishing head, one end of the connecting rod is connected with the delivery head through a delivery shearing pin, and the other end of the connecting rod is connected with the lower core rod through threads;
the lower core rod is of a hollow structure, an air tap is arranged at a hollow opening at the lower end of the lower core rod, and the air tap is fixed at the opening of the lower core rod through a core rod cap;
the outer side of the lower core rod is sleeved with a core rod sleeve, and the lower core rod is connected with the core rod sleeve through a deblocking pin; the outer side of the core rod sleeve is provided with an upper slip, and the outer side of the lower core rod is also provided with a slip and a lower slip; the slips are arranged between the upper slips and the lower slips and can be spread and supported on the inner wall of the gas well when the upper slips and the lower slips move towards each other;
a sealing rubber cylinder, an inclined tooth cap upper pressing cap and an inclined tooth cap seat are sequentially arranged on the outer side of the lower core rod below the lower slip; the inclined tooth cap base is fixed on the core rod cap, and the upper pressing cap of the inclined tooth cap is fixed on the outer side of the lower core rod through the inclined tooth cap base.
Furthermore, the outside of air cock is provided with sand prevention cover for prevent that the grit from entering into the inside of core rod down.
Further, the sealing rubber barrel is made of elastic rubber.
Further, the packing rubber tube is made of fluororubber.
Furthermore, the upper pressing cap of the skewed tooth cap is connected with the skewed tooth cap seat in a sliding mode through skewed teeth.
Further, the delivery head is provided with a quick connector, so that the quick connection with a conventional tool can be realized.
Furthermore, one side of the fishing head close to the delivery head is provided with a convex head-shaped structure
The vortex water drainage throttling gas production device provided by the utility model has the following advantages:
1. easy to be put in. When the slip is thrown in, the slip is collected in the device, and the mistaken setting can not be generated after the slip is slightly blocked in the throwing process.
2. Is easy to salvage. During fishing, the sealing rubber cylinder is unsealed, the sealing rubber cylinder has a retraction space, the friction force between the sealing rubber cylinder and the inner wall of the gas well is small, and the fishing success rate is high;
3. the service life is long. The sealing rubber cylinder is made of fluororubber, is resistant to high pressure, high temperature, natural gas and condensate oil corrosion, and has a service life of more than one year;
4. the sealing rubber cylinder is sealed tightly initially. The initial sealing force of the sealing rubber cylinder is controlled by the lifting tension (350-450Kg), so that the sealing property of the rubber cylinder can be ensured;
5. the corrosion resistance is good. And each part is made of stainless steel materials, so that the corrosion resistance is high. .
Drawings
Fig. 1 is a schematic structural view of a vortex water-drainage throttling gas production device of the utility model.
In the figure:
1. fishing out the sections; 2. a cyclone section; 3. a connecting section; 4. a clamping seat; 5. a throttle seal section; 6. a sand prevention section; 101. a delivery head; 102. a connecting rod; 103. fishing the head; 104. delivering the shearing pin; 201. a swirl vane; 401. a body is straightened; 402. unsealing the pin; 403. a core rod sleeve; 404. the slips are put on; 405. slips; 406. a slip is put down; 407. a lower core rod; 501. sealing the rubber cylinder; 502. a centering ring of a helical tooth cap; 503. a skewed tooth cap base; 504. pressing the cap on the skewed tooth cap; 505. an air tap; 506. a core rod cap; 601. a sand-proof cover.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the technical field better understand the scheme of the present invention.
As shown in fig. 1, the vortex drainage throttling gas production device of the present invention comprises a delivery head 101, a fishing head 103, a lower core rod 407, a sealing rubber cylinder 501, an air tap 505 and a sand-proof cover 601 in sequence from the upper end to the lower end.
The delivery head 101 is provided with a quick connector which can realize quick connection with conventional tools (a rope cap, a weighting rod and a jar), so that the rapid operation can be conveniently carried out on a construction site.
The fishing head 103 has a connecting rod 102 extending through the center thereof, and a swirl blade 201 provided on the outer side thereof, and the fishing head 103 can rotate around the connecting rod 102. One side of the fishing head 103 close to the delivery head 101 is a convex head structure, and is used for clamping a main recoverer when the vortex water drainage throttling gas production device is recovered. The connecting rod 102 has two ends projecting from the fishing head 103, one end connected to the delivery head 101 via the delivery shear pin 104, and the other end connected to the lower core rod 407 via a screw.
After the vortex drainage throttling gas production device is put in, the delivery shearing pin 104 can be cut off by upward shocking, so that the extraction tool and the vortex drainage throttling gas production device can be quickly separated.
The lower core rod 407 is a hollow structure, an air tap 505 is arranged at a hollow opening of the lower end of the lower core rod 407, the air tap 505 is fixed at the opening of the lower core rod 407 through a core rod cap 506, and a sand-proof cover 601 is arranged outside the air tap 505 and used for preventing sand in the air field from entering the lower core rod 407.
The outer side of the lower core rod 407 is sleeved with a core rod sleeve 403, and the lower core rod 407 is connected with the core rod sleeve 403 through a deblocking pin 402. By a slight upward shock, the decapsulation pin 402 between the lower core pin 407 and the core sleeve 403 may be cut, releasing the secure connection between the lower core pin 407 and the core sleeve 403, allowing relative movement between the lower core pin 407 and the core sleeve 403.
An upper slip 404 is arranged on the outer side of the core rod sleeve 403, a slip 405 and a lower slip 406 are further arranged on the outer side of the lower core rod 407, and a righting body 401 is further arranged between the upper slip 404 and the lower core rod 407 and used for supporting the upper slip 404. Slips 405 are disposed between the upper slip 404 and the lower slip 406 and are capable of spreading apart and bearing against the inner wall of the gas well as the upper slip 404 and the lower slip 406 move toward each other.
Specifically, by lifting the vortex water drainage and throttling gas production device, the connecting rod 102 drives the lower core rod 407 to move upwards, so that relative movement occurs between the lower core rod 407 and the core rod sleeve 403, and further the upper slip 404 and the lower slip 406 move towards each other, so that the slips are spread and supported and fixed on the inner wall of the gas well, and when the vortex water drainage and throttling gas production device is retracted, the slips can be retracted.
The outer side of the lower core bar 407 is provided with a sealing rubber cylinder 501, a bevel gear cap upper pressing cap 504 and a bevel gear cap seat 503 in sequence below the lower slip 406. The packing rubber cylinder 501 is made of elastic rubber, preferably fluororubber, and is adapted to be pushed open to the outside and supported on the inner wall of the gas well when pressed in the axial direction of the lower core rod 407.
The skewed tooth cap holder 503 is fixed to the end of the lower core rod 407, i.e., to the core rod cap 506. The helical tooth cap upper pressing cap 504 is fixed to the outer side of the lower core rod 407 through a helical tooth cap holder 503. The upper pressing cap 504 of the skewed tooth cap and the cap holder 503 of the skewed tooth are connected in a sliding manner through the skewed tooth, so that when the mandrel 407 is lifted, the distance between the upper pressing cap 504 of the skewed tooth cap and the cap holder 503 of the skewed tooth is increased under the action of the skewed tooth, and the sealing rubber cylinder 501 is further extruded, so that the sealing rubber cylinder is expanded outwards and supported on the inner wall of the gas well.
Specifically, when the unsealing pin 402 is broken, and the vortex drainage throttling gas production device is lifted, the lower core rod 407 pulls the bevel-tooth-cap upper pressing cap 504 to prop open and support the sealing rubber cylinder 501 on the inner wall of the gas well.
Therefore, the vortex water-draining throttling gas production device can be sequentially divided into a fishing section 1, a vortex section 2, a connecting section 3, a clamping seat 4, a throttling sealing section 5 and a sand prevention section 6 from the tail end to the head end.
The fishing section 1 comprises a delivery head 101 for connecting the vortex water-draining throttling gas production device with an external conventional tool.
The swirl section 2 comprises a fishing head 103 and swirl vanes 201, so that the rising airflow enters a swirl state, and then the moisture in the airflow is thrown on the side wall.
The connecting section 3 is arranged between the cyclone section 2 and the clamping seat 4 and is used for connecting the cyclone section 2 and the clamping seat 4.
The block 4 includes slips 405 so that the slips can be spread out to act as a support when dropped and retracted.
The throttling sealing section 5 comprises a sealing rubber cylinder 501, a bevel gear cap righting 502, a bevel gear cap base 503, a bevel gear cap upper pressing cap 504 and an air nozzle 505, and is used for sealing air flow after the sealing rubber cylinder 501 is supported.
The vortex water-draining throttling gas production device provided by the utility model comprises the following steps during operation:
1. the flow controller is arranged in the device:
1.1. firstly, installing a running tool on a lower core rod, and installing a shear pin;
note that: after the shear pin is arranged on the lower core rod, the shear pin is required to be flattened, so that the shear pin is not higher than the outer part of the lower core rod, and the slip cannot return.
1.2. Connecting a choke to the basic tool string and descending the well;
1.3. lowering the well, lifting the tool when the well is lowered to a preset position, and then propping the slips on the inner wall of the gas well;
1.4. slightly shocking upwards, and cutting off the deblocking pin between the lower core rod and the core rod sleeve;
1.5, continuously lifting the tool, and pulling a core rod cap by a lower core rod to prop open the rubber cylinder on the wall of the gas well;
1.6. and (4) upward shocking, cutting off a shear pin of the running-in tool, and pulling out the tool.
2. And (3) recycling of the throttling device:
2.1. the basic tool is connected with the JU throwing and fishing device in series and goes into the well;
2.2. when the choke is placed at a fixed position, the choke is shocked downwards, the lower core rod retracts, the rubber cylinder retracts and is unsealed, and the throwing and fishing device grasps the fishing neck at the same time;
2.3. continuing to knock downwards to loosen the slips and the cylinder;
2.4. the outlet restrictor is lifted up.
Note that: because the slips are tightly bitten with the inner wall of the gas well and have a self-locking effect with the outer conical surface of the cylinder body, the lower core rod slip is proved to be incapable of unlocking with the cylinder body if the pulling force is increased after the slip is lifted downwards after the shock; at this point, the downward jolt should be resumed to unlock the slips.
3. Replacing nozzle
3.1 screwing down the core rod cap and the pressing cap assembly;
3.2, punching out the nozzle, and replacing.
The inventive concept is explained in detail herein using specific examples, which are given only to aid in understanding the core concepts of the utility model. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. A vortex drainage throttling gas production device is characterized by comprising a delivery head, a fishing head, a lower core rod, a sealant barrel and an air tap in sequence from the upper end to the lower end;
the center of the fishing head is penetrated with a connecting rod, and the outer side of the fishing head is provided with a rotational flow blade; two ends of the connecting rod protrude out of the fishing head, one end of the connecting rod is connected with the delivery head through a delivery shearing pin, and the other end of the connecting rod is connected with the lower core rod through threads;
the lower core rod is of a hollow structure, an air tap is arranged at a hollow opening at the lower end of the lower core rod, and the air tap is fixed at the opening of the lower core rod through a core rod cap;
the outer side of the lower core rod is sleeved with a core rod sleeve, and the lower core rod is connected with the core rod sleeve through a deblocking pin; the outer side of the core rod sleeve is provided with an upper slip, and the outer side of the lower core rod is also provided with a slip and a lower slip; the slips are arranged between the upper slips and the lower slips and can be spread and supported on the inner wall of the gas well when the upper slips and the lower slips move towards each other;
a sealing rubber cylinder, an inclined tooth cap upper pressing cap and an inclined tooth cap seat are sequentially arranged on the outer side of the lower core rod below the lower slip; the skewed tooth cap base is fixed on the core rod cap, and the upper pressing cap of the skewed tooth cap is fixed on the outer side of the lower core rod through the skewed tooth cap base.
2. A vortex water drainage throttling gas production device according to claim 1, wherein the outer side of the air tap is provided with a sand prevention cover for preventing sand from entering the inner part of the lower core rod.
3. The vortex water drainage throttling gas production device according to claim 1, wherein the rubber sealing cylinder is made of elastic rubber.
4. A scroll drainage throttling gas recovery device according to claim 3, wherein the packing rubber cylinder is made of fluororubber.
5. The vortex water drainage throttling gas production device according to claim 1, wherein the upper pressure cap of the helical tooth cap and the helical tooth cap seat are in sliding connection through helical teeth.
6. The vortex water drainage throttling gas production device according to claim 1, wherein the delivery head is provided with a quick connector capable of realizing quick connection with a conventional tool.
7. The vortex water drainage throttling gas production device according to claim 1, wherein one side of the fishing head close to the delivery head is of a convex head-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122104059.3U CN215632915U (en) | 2021-09-02 | 2021-09-02 | Vortex drainage throttling gas production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122104059.3U CN215632915U (en) | 2021-09-02 | 2021-09-02 | Vortex drainage throttling gas production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215632915U true CN215632915U (en) | 2022-01-25 |
Family
ID=79905958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122104059.3U Active CN215632915U (en) | 2021-09-02 | 2021-09-02 | Vortex drainage throttling gas production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215632915U (en) |
-
2021
- 2021-09-02 CN CN202122104059.3U patent/CN215632915U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103306643B (en) | A kind of water drainage gas production device and method | |
| CN204252973U (en) | A kind of split type underground throttle device | |
| CN106014346A (en) | Drainage and gas production method and device through velocity string in cooperation with plunger airlift | |
| CN203891852U (en) | Sand blocking prevention downhole restriction choke easy to unlock | |
| CN111101895A (en) | Underground multilayer seat pressure one-way plugging type switch | |
| CN114482891A (en) | Friction setting sand prevention pipe column, friction setting packer and method | |
| CN204060585U (en) | Continuous circulation valve | |
| CN215632915U (en) | Vortex drainage throttling gas production device | |
| CN202745847U (en) | Controllable hydraulic ejector | |
| CN116816308A (en) | Oil-free pipe paraffin removal lifting device for small-bore shale oil well | |
| CN215632885U (en) | Automatic cleaning underground throttle for composite rubber cylinder bulging sealing sand setting | |
| CN201687422U (en) | Self-seal lifting type tubing anchor device | |
| CN2903353Y (en) | Washing well packer | |
| CN107387040B (en) | Full-scale vortex water drainage gas production tool | |
| CN202510087U (en) | Retrievable subsurface safety valve | |
| CN214944120U (en) | Hydraulic control type drill rod dynamic anchor | |
| CN202338203U (en) | Open-hole cave-making tool | |
| CN113738314B (en) | Integrated pump-suction combined operation pressurized rotary pump pipe column and plugging tool and method | |
| CN115434665A (en) | Shaft opening and closing tool free of well-killing tripping operation and process method | |
| CN201531246U (en) | Multi-functional tool in underground oil pipe | |
| CN202402003U (en) | Lead sealing sand control packer for 4-inch small holes | |
| CN208982015U (en) | A kind of well-flushing oil drain switch | |
| CN208281163U (en) | A kind of device of concentric tube hydraulic pump pump core unfreezing | |
| CN206592107U (en) | Down-hole oil production elastic expansion plunger | |
| CN201103373Y (en) | Oil pipe plugging device for oil-gas field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |