CN221032514U - Wellhead pressurized natural gas exploitation device - Google Patents
Wellhead pressurized natural gas exploitation device Download PDFInfo
- Publication number
- CN221032514U CN221032514U CN202322872110.4U CN202322872110U CN221032514U CN 221032514 U CN221032514 U CN 221032514U CN 202322872110 U CN202322872110 U CN 202322872110U CN 221032514 U CN221032514 U CN 221032514U
- Authority
- CN
- China
- Prior art keywords
- wellhead
- cover plate
- gas production
- natural gas
- sealing
- 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
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000003345 natural gas Substances 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 239000007789 gas Substances 0.000 claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims description 35
- 238000000605 extraction Methods 0.000 abstract description 11
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009545 invasion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses a wellhead pressurized natural gas extraction device, which relates to the technical field of natural gas extraction and comprises a sealing device body, wherein the sealing device body is suitable for pressurized sealing of a natural gas extraction wellhead and comprises a circular cover plate, a bracket is welded above the middle position of the top of the circular cover plate, an internal thread II is arranged in the top end of the bracket, a gas production pipeline is connected with the internal thread of the bracket, a sealing unit is arranged in the middle position of the circular cover plate, and fixing units are arranged on the periphery of the circular cover plate. According to the utility model, the screw thread is arranged on the outer surface of the gas production pipeline and can be staggered with the internal screw thread in the support, so that the conical sealing plug is convenient to plug on the inner wall of the wellhead, the sealing of the wellhead is realized, and meanwhile, the conical sealing plug can seal according to the size of the wellhead under the up-and-down movement of the gas production pipeline, the internal pressure is enhanced, and the exploitation efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of natural gas exploitation, in particular to a wellhead pressurized natural gas exploitation device.
Background
Natural gas production also has its own characteristics, firstly natural gas and crude oil are often a storage system with bottom water or side water, along with the natural gas production process, the elastic energy of water body can drive water to flow into gas reservoirs along high permeability zones, in this case, due to the effect of hydrophilicity and capillary pressure of rock itself, water invasion is not effective to displace gas, but rather gas which is not discharged in a closed slot or a gap is formed into a dead gas zone, the high pressure gas trapped in the water invasion zone can reach up to 30% -50% of the pore volume of the rock, thus greatly reducing the final recovery rate of the gas reservoirs, secondly after gas well production, the total energy consumption of gas flow into the bottom of the well can be increased, with the increasing effect of water invasion, the gas production rate of the gas reservoirs is reduced, the self-injection capacity of the gas well is reduced, the single well yield is rapidly decreased until the well bottom is severely accumulated, and production is stopped.
In the prior art, a chinese patent document with publication number CN217872716U and publication date 2022, 11 and 22 is proposed to solve the above technical problems, and the technical scheme disclosed in the patent document is as follows: the utility model provides a natural gas exploitation well plugging device, includes the location backup pad, the back upside of location backup pad is provided with exploitation well shutoff subassembly, the outer wall downside of location backup pad is provided with the keysets, the switching hole has been seted up on the keysets, the location spout has been vertically seted up in the location backup pad.
In order to solve the problem of well head shutoff, the prior art adopts the drive shaft to control the drive special-shaped gear, realizes the transmission between drive special-shaped gear and the transmission special-shaped gear, realizes the drive to regulation and control screw rod, makes the shutoff seat shift and pushes down, realizes handling the mode of shutoff of exploitation well, but this kind of shutoff mode effect is relatively poor, only can carry out the shutoff under the condition of not exploiting, need dismantle when using, if do not seal up the well head can appear the condition of gas leakage, leads to the pressure in the well too little and exploitation efficiency can greatly reduced's problem.
Disclosure of utility model
The utility model aims to provide a wellhead pressurized natural gas exploitation device to solve the problems in the background art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a well head pressure boost natural gas exploitation device, includes the sealing device body, is applicable to the natural gas exploitation well head pressure boost and seals the use, the sealing device body is including circular apron, the top intermediate position top welding of circular apron has the support, the inside internal thread second that is provided with in top of support, the inside threaded connection of support has the gas production pipeline.
The sealing unit is arranged in the middle of the round cover plate, and the fixing unit is arranged on the periphery of the round cover plate.
The technical scheme of the utility model is further improved as follows: the sealing unit comprises threads arranged on the outer surface of the gas production pipeline, a conical sealing plug is fixedly connected to the bottom end of the gas production pipeline, first internal threads are formed in the top end of the gas production pipeline, a threaded sealing block is arranged above the gas production pipeline, threads are arranged on the outer surface of the gas production pipeline and can be used for carrying out rotary adjustment inside a support, the position of the gas production pipeline is convenient to adjust, sealing effect can be achieved through cooperation with the conical sealing plug, and meanwhile the inside of the gas production pipeline is in a hollow state, so that the gas production pipeline is convenient to connect with an external gas production pipeline for gas production.
The technical scheme of the utility model is further improved as follows: the fixing unit comprises a cavity arranged on the periphery of the round cover plate, limiting slide bars are fixedly connected in grooves on the tops of two sides of the cavity, a transmission motor is fixedly installed on the outer surface of the round cover plate outside the cavity, and the limiting slide bars are convenient for moving the sleeve block to perform limiting function in moving.
The technical scheme of the utility model is further improved as follows: the transmission motor is characterized in that a transmission screw rod is fixedly connected to the output end of the transmission motor, the other end of the transmission screw rod is rotatably arranged on the inner side inner wall of the cavity, clamping arc plates are arranged on the periphery of the bottom end of the round cover plate, and the transmission screw rod is driven by the output end of the transmission motor to enable the clamping arc plates to move inwards for clamping.
The technical scheme of the utility model is further improved as follows: the middle position of the top of the round cover plate is provided with a through hole, the top of the clamping arc plate is fixedly connected with a movable sleeve block, and the movable sleeve block is in threaded sleeve connection with the outer surface of the transmission screw rod.
The technical scheme of the utility model is further improved as follows: limiting holes are formed in two sides of the top of the movable sleeve block, and the limiting holes are movably sleeved on the outer surface of the limiting sliding rod.
The technical scheme of the utility model is further improved as follows: the clamping arc plate is characterized in that a reset spring is fixedly connected to the inner side of the clamping arc plate, an extrusion plate is fixedly connected to the other end of the reset spring, a rubber raised line is fixedly connected to the outer surface of the extrusion plate, the rubber raised line can enhance the friction force of clamping, the reset spring is extruded by continuous movement of the clamping arc plate, and the extrusion plate is tightly attached to the outer wall of a wellhead by the aid of the pushing force of the reset spring.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:
1. The utility model provides a wellhead pressurized natural gas exploitation device, which is characterized in that threads are arranged on the outer surface of a gas exploitation pipeline and can be staggered with internal threads in a bracket, so that a conical sealing plug is convenient to plug on the inner wall of the wellhead, the sealing of the wellhead is realized, and meanwhile, the conical sealing plug can seal according to the size of the wellhead under the up-and-down movement of the gas exploitation pipeline, so that the internal pressure is enhanced, and the exploitation efficiency is improved.
2. The utility model provides a wellhead pressurized natural gas production device, which is characterized in that a transmission motor is arranged to drive a transmission screw rod to rotate at a constant speed, a movable sleeve block on the outer surface of the transmission screw rod is driven to drive a clamping arc plate to gradually move inwards under the condition that the transmission screw rod rotates at a constant speed, the outer wall of a wellhead is clamped and positioned, a sealing assembly is prevented from being separated, and the fixing effect of the sealing assembly is improved.
3. The utility model provides a wellhead pressurized natural gas extraction device, which is characterized in that an extrusion plate is arranged to drive a rubber convex strip to be attached to the outer wall of a wellhead, the friction force of clamping is enhanced by the rubber convex strip, so that the clamping is more stable, a reset spring is extruded by the continuous motion of a clamping arc plate, the extrusion plate is tightly attached to the outer wall of the wellhead by the pushing force of the reset spring, and the effect of clamping stability is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a gas production pipe and a circular cover plate according to the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;
FIG. 4 is a schematic view of a circular cover plate according to the present utility model;
fig. 5 is a schematic view of a clamping arc plate structure according to the present utility model.
In the figure: 1. a sealing device body; 2. a circular cover plate; 21. a cavity; 22. a limit slide bar; 23. a drive motor; 24. a transmission screw rod; 25. a through hole; 26. clamping the arc plate; 261. a return spring; 262. an extrusion plate; 263. rubber protruding strips; 27. moving the sleeve block; 28. a limiting hole; 3. a bracket; 31. an internal thread II; 4. a gas production pipeline; 42. a thread; 43. a conical sealing plug; 44. an internal thread I; 45. a threaded sealing block.
Detailed Description
The utility model is further illustrated by the following examples:
example 1
As shown in fig. 1-5, the utility model provides a wellhead pressurized natural gas extraction device, which comprises a sealing device body 1, wherein the sealing device body 1 is suitable for pressurized sealing of a natural gas extraction wellhead, the sealing device body 1 comprises a circular cover plate 2, a bracket 3 is welded above the middle position of the top of the circular cover plate 2, an internal thread II 31 is arranged inside the top end of the bracket 3, a gas extraction pipeline 4 is connected with the internal thread of the bracket 3, a sealing unit is arranged in the middle position of the circular cover plate 2, fixing units are arranged on the periphery of the circular cover plate 2, the sealing unit comprises threads 42 arranged on the outer surface of the gas extraction pipeline 4, a conical sealing plug 43 is fixedly connected to the bottom end of the gas extraction pipeline 4, an internal thread I44 is arranged inside the top end of the gas extraction pipeline 4, and a thread sealing block 45 is arranged above the gas extraction pipeline 4.
Further, through placing this sealing device body 1 in the top of natural gas wellhead, the rotation of cooperation gas production pipeline 4 this moment utilizes its screw thread 42 to carry out the staggered rotation with the inside internal thread two 31 of support 3 for gas production pipeline 4 gradually moves down, until conical sealing plug 43 blocks up and seals on the inner wall of wellhead, and cooperation external gas production pipe is connected with the internal thread one 44 at gas production pipeline 4 top and can directly be adopted gas, and the effect of accessible screw thread sealing block 45 seals when not using prevents gas leakage.
Example 2
As shown in fig. 1-5, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the fixing unit comprises a cavity 21 arranged on the periphery of the round cover plate 2, limiting slide rods 22 are fixedly connected in grooves on the tops of two sides of the cavity 21, a transmission motor 23 is fixedly arranged on the outer surface of the round cover plate 2 outside the cavity 21, a transmission screw 24 is fixedly connected to the output end of the transmission motor 23, the other end of the transmission screw 24 is rotatably arranged on the inner wall of the inner side of the cavity 21, clamping arc plates 26 are arranged on the periphery of the bottom end of the round cover plate 2, through holes 25 are formed in the middle position of the top of the round cover plate 2, movable sleeve blocks 27 are fixedly connected to the tops of the clamping arc plates 26, the movable sleeve blocks 27 are in threaded sleeve connection with the outer surface of the transmission screw 24, limiting holes 28 are formed in two sides of the top of the movable sleeve blocks 27, and the limiting holes 28 are movably sleeved on the outer surface of the limiting slide rods 22.
Further, the transmission motor 23 is started at the same time, the transmission screw rod 24 is driven to rotate at a constant speed by the rotation of the transmission motor 23, the movable sleeve block 27 on the outer surface of the transmission screw rod 24 is driven to drive the clamping arc plate 26 to gradually move inwards under the condition that the transmission screw rod 24 rotates at a constant speed, the outer wall of the wellhead is clamped and positioned, the sealing assembly is prevented from being separated, and the limiting slide rod 22 is matched for limiting the position when the clamping arc plate 26 moves.
Example 3
As shown in fig. 1-5, on the basis of embodiments 1-2, the present utility model provides a technical solution: preferably, a return spring 261 is fixedly connected to the inner side of the clamping arc plate 26, a squeeze plate 262 is fixedly connected to the other end of the return spring 261, and a rubber raised line 263 is fixedly connected to the outer surface of the squeeze plate 262.
Further, during clamping, the extrusion plate 262 is matched to drive the rubber raised strips 263 to be attached to the outer wall of the wellhead, the friction force of clamping is enhanced by the rubber raised strips 263, so that the clamping is stable, the restoring spring 261 is extruded by continuous movement of the clamping arc plate 26, and the extrusion plate 262 is tightly attached to the outer wall of the wellhead by the pushing force of the restoring spring 261.
The working principle of the wellhead pressurized natural gas exploitation device is specifically described below.
As shown in fig. 1-5, when in use, the sealing device body 1 is placed above a natural gas wellhead, at this time, the sealing device body is matched with the rotation of the gas production pipeline 4, the screw threads 42 of the sealing device body and the internal screw threads two 31 in the bracket 3 are utilized to carry out staggered rotation, so that the gas production pipeline 4 gradually moves downwards until the conical sealing plug 43 is blocked on the inner wall of the wellhead, the sealing device body is matched with the external gas production pipeline to be connected with the internal screw threads one 44 at the top of the gas production pipeline 4, when not in use, the sealing effect can be carried out through the screw thread sealing block 45, the gas leakage is prevented, the transmission motor 23 on the periphery of the circular cover plate 2 is started simultaneously, the transmission screw rod 24 is driven to rotate at a constant speed by utilizing the rotation of the transmission motor 23, the moving sleeve block 27 on the outer surface of the transmission screw rod 24 is driven to gradually move inwards under the condition of constant speed of the transmission screw rod 24, the clamping arc plate 26 is prevented from being separated by the sealing assembly, the limiting of the position 22 is matched during the movement of the clamping arc plate 26, the extruding plate 262 is firstly matched with the rubber protruding strip 263 to be attached with the outer wall of the wellhead, the rubber protruding strip 263 is utilized to enhance the friction force of the clamping, the clamping is further stable, and the reset spring 261 is driven to continuously move by the reset spring 261 to press the outer wall of the clamping the wellhead.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (7)
1. The utility model provides a well head pressure boost natural gas exploitation device, includes sealing device body (1), is applicable to the well head pressure boost of natural gas exploitation and seals and use, its characterized in that: the sealing device comprises a sealing device body (1) and is characterized in that the sealing device body comprises a circular cover plate (2), a bracket (3) is welded above the middle position of the top of the circular cover plate (2), an internal thread II (31) is arranged inside the top end of the bracket (3), and an air collecting pipeline (4) is connected with the internal thread of the bracket (3);
The sealing unit is arranged in the middle of the round cover plate (2), and the fixing unit is arranged on the periphery of the round cover plate (2).
2. The wellhead pressurized natural gas production device of claim 1, wherein: the sealing unit comprises threads (42) arranged on the outer surface of the gas production pipeline (4), a conical sealing plug (43) is fixedly connected to the bottom end of the gas production pipeline (4), an internal thread I (44) is arranged inside the top end of the gas production pipeline (4), and a thread sealing block (45) is arranged above the gas production pipeline (4).
3. The wellhead pressurized natural gas production device of claim 1, wherein: the fixing unit comprises a cavity (21) arranged on the periphery of the round cover plate (2), limiting slide bars (22) are fixedly connected in grooves on the tops of two sides of the cavity (21), and a transmission motor (23) is fixedly arranged on the outer surface of the round cover plate (2) on the outer side of the cavity (21).
4. A wellhead pressurized natural gas production device according to claim 3, characterized in that: the novel circular cover plate is characterized in that a transmission screw rod (24) is fixedly connected to the output end of the transmission motor (23), the other end of the transmission screw rod (24) is rotatably arranged on the inner side inner wall of the cavity (21), and clamping arc plates (26) are arranged on the periphery of the bottom end of the circular cover plate (2).
5. The wellhead pressurized natural gas production device of claim 4, wherein: the circular cover plate (2) is characterized in that a through hole (25) is formed in the middle of the top of the circular cover plate (2), a movable sleeve block (27) is fixedly connected to the top of the clamping arc plate (26), and the movable sleeve block (27) is in threaded sleeve connection with the outer surface of the transmission screw rod (24).
6. The wellhead pressurized natural gas production device of claim 5, wherein: limiting holes (28) are formed in two sides of the top of the movable sleeve block (27), and the limiting holes (28) are movably sleeved on the outer surface of the limiting slide rod (22).
7. The wellhead pressurized natural gas production device of claim 4, wherein: the clamping arc plate is characterized in that a reset spring (261) is fixedly connected to the inner side of the clamping arc plate (26), a squeezing plate (262) is fixedly connected to the other end of the reset spring (261), and a rubber raised line (263) is fixedly connected to the outer surface of the squeezing plate (262).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322872110.4U CN221032514U (en) | 2023-10-25 | 2023-10-25 | Wellhead pressurized natural gas exploitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322872110.4U CN221032514U (en) | 2023-10-25 | 2023-10-25 | Wellhead pressurized natural gas exploitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221032514U true CN221032514U (en) | 2024-05-28 |
Family
ID=91169348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322872110.4U Active CN221032514U (en) | 2023-10-25 | 2023-10-25 | Wellhead pressurized natural gas exploitation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221032514U (en) |
-
2023
- 2023-10-25 CN CN202322872110.4U patent/CN221032514U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115217435B (en) | Polished rod sealing device with pressurization function for oil field | |
| CN110847330A (en) | Water utilization throttling flood-fighting drainage system and method thereof | |
| CN221032514U (en) | Wellhead pressurized natural gas exploitation device | |
| CN113279732A (en) | Compression type diameter-variable plunger | |
| CN111735667A (en) | Ore pulp pipeline sampler convenient to seal | |
| CN215338812U (en) | Coastal zone underground water three-dimensional test water tank capable of realizing multi-boundary conditions | |
| CN212479743U (en) | Anti-leakage pressure reducing valve | |
| CN221003838U (en) | Pneumatic gate valve capable of being remotely controlled | |
| CN214403533U (en) | Compression type diameter-variable plunger | |
| CN214403532U (en) | Expanding type variable-diameter plunger | |
| CN217280487U (en) | Underground balanced pressure transmission device | |
| CN117927444B (en) | Screw rod piston pump | |
| CN212745118U (en) | Efficient water-saving elastic seat seal gate valve | |
| CN212001500U (en) | Water conservancy is with throttle flood fighting drainage system | |
| CN217583191U (en) | High-performance corrosion-resistant pressure-bearing casting | |
| CN213653388U (en) | Sluice with hydraulic pressure is confined | |
| CN118079573B (en) | Membrane separation oil gas recovery device | |
| CN116163947B (en) | Detachable wear-resistant variable device | |
| CN221683473U (en) | Elastic damping body shock absorber | |
| CN113338242A (en) | Efficient surface of water garbage collection device | |
| CN215703886U (en) | Extrusion device convenient to height-adjusting | |
| CN219264602U (en) | Novel foaming plug for water tank of solar water heater | |
| CN214534655U (en) | Pressure feedback logic reversing valve | |
| CN218582523U (en) | Pagoda type joint of oil cooler | |
| CN219345072U (en) | Backflow-preventing booster water injection pump for oilfield exploitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |