CN116696472B - Gas storage well head throttling arrangement - Google Patents
Gas storage well head throttling arrangement Download PDFInfo
- Publication number
- CN116696472B CN116696472B CN202310859776.8A CN202310859776A CN116696472B CN 116696472 B CN116696472 B CN 116696472B CN 202310859776 A CN202310859776 A CN 202310859776A CN 116696472 B CN116696472 B CN 116696472B
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- connecting column
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- assembly
- positioning
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- 238000003860 storage Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000013016 damping Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 239000003381 stabilizer Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/16—Modification of mine passages or chambers for storage purposes, especially for liquids or gases
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a gas storage wellhead throttling device, which comprises a sleeve, wherein a positioning top plate is fixed at the top of the sleeve, a driving assembly is fixedly arranged at the bottom of the sleeve, the driving assembly is in rotary connection with a throttling valve assembly through a connecting assembly, the top of the throttling valve assembly is in elastic connection with an anti-blocking assembly through a connecting column, the throttling valve assembly is also provided with a connecting fastener which is internally compressed and limited to rotate, a driving motor is started to drive a rotating seat to rotate, a stud drives the connecting column to displace, the stud is retracted to the top of a spiral groove to rotate along with the rotation of the rotating seat, and a damping elastic sheet is matched to drive the connecting column to rotate along with the stud when the stud rotates, at the moment, a second limiting block completely penetrates into a limiting chute and reaches the notch of a locking groove, and slides in the locking groove under the continuous rotation of the driving motor, so that two groups of sealing plates are mutually close to each other until the two groups of corresponding ring baffles are sealed, and the rotation of the driving motor can be stopped at any time to regulate the gas flow, so that throttling is completed.
Description
Technical Field
The invention relates to the technical field of oil gas storage and transportation, in particular to a gas storage well head throttling device.
Background
Gas reservoirs, i.e., the "containers" that store natural gas. By "gas storage" we mean generally underground gas storage. Underground gas reservoirs are artificial gas fields or reservoirs formed by re-injecting commercial natural gas conveyed by long-distance pipelines into underground spaces, and are generally built near cities of downstream natural gas users. The operation of the gas storage takes the year as a period, and the process of 'gas collection in winter and spring and gas injection in summer and autumn' is the operation flow of the gas storage in China.
The gas storage well relies on higher stratum pressure to spout gas production by oneself, because stratum pressure is higher, and the well head is general installs the air cock, realizes reducing pressure through the mode of control flow to satisfy dew point processing and defeated requirement outward, but because well head bottom pressure is high, the mode of installing the air cock commonly used throttles, not only adjusts pressure inconvenient, and the mode of manual rotating valve regulation air cock is not only inefficiency, needs to consume a large amount of manpowers moreover, reinforcing manual labor volume.
Disclosure of Invention
The invention aims to provide a gas storage wellhead throttling device so as to solve the problems of the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a gas storage well head throttling arrangement, includes the sleeve pipe, sheathed tube top is fixed with the location roof, the spacing card of location roof is equipped with anti-blocking assembly, sheathed tube bottom fixed mounting has drive assembly, and drive assembly passes through coupling assembling and throttle valve subassembly and rotates to be connected, just throttle valve subassembly top is through spliced pole two and anti-blocking assembly elastic connection, the throttle valve subassembly still installs inside and compresses tightly spacing pivoted connection fastener.
Further, the drive assembly comprises support columns, a drive motor and a rotating seat, wherein the drive motor is fixed in the sleeve through three groups of support columns, and the top output end of the drive motor is connected with the rotating seat.
Still further, coupling assembling includes double-screw bolt, first stopper, connecting block and commentaries on classics piece, the helicoidal groove has been seted up to the inside of rotating the seat, the helicoidal groove with double-screw bolt threaded connection, the extension end of double-screw bolt with first stopper links to each other, first stopper front end is connected with changeing the piece through the connecting block, it runs through in the inside of spliced pole one to change the piece, just inside evenly distributed of spliced pole one has multiunit damping shell fragment.
Still further, throttle valve subassembly includes spliced pole one, closing cap board, locating ring board, ring baffle and first extension spring, two sets of be connected through first extension spring between the closing cap board, a set of the closing cap board is fixed at the top of spliced pole one, be located two sets of on the sheathed tube inner wall the locating ring board is fixed to be equipped with between the closing cap board, the both ends face of locating ring board is all fixed to be equipped with the ring baffle.
Still further, the connection fastener includes reference column, stabilizer bar and stopper, the integrative reference column that is equipped with in top of reference column one, the top fixed connection of reference column the stabilizer bar, the stabilizer bar runs through inside the through groove of two inside setups of reference column, the outside of reference column is equipped with two sets of second stoppers, the inside at spacing spout is run through to the second stopper, spacing spout is seted up run through the front end both sides of groove, just the inner intercommunication of spacing spout has the locked groove of screw thread design.
Furthermore, one end of the second connecting column is connected with a group of sealing plates, and the other end of the second connecting column is connected with the pressing plate through a second tension spring.
Still further, prevent stifled subassembly including preventing stifled commentaries on classics head, mounting groove, third extension spring and shifting block, the top of clamp plate is rotated and is installed prevent stifled commentaries on classics head, the mounting groove has been seted up to the inside of preventing stifled commentaries on classics head, install multiunit third extension spring in the mounting groove, third extension spring one end is fixed in the mounting groove, the other end of third extension spring with the shifting block is connected.
Furthermore, a limiting rod is arranged outside one end of the second connecting column, which is close to the anti-blocking rotary head, and the limiting rod is arranged below the positioning top plate.
Furthermore, an enclosure is arranged at the top of the positioning top plate outside the anti-blocking rotary head, and a vent corresponding to the shifting block is arranged in the enclosure.
Furthermore, a clamping groove is formed in the positioning top plate, a clamping block penetrates through the clamping groove, and the clamping block is fixedly arranged at the bottom of the pressing plate.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention starts the driving motor to rotate so as to drive the rotating seat to rotate along with the rotating seat, and because the side edge of the rotating block is contacted with the damping elastic sheet, the stud can be prevented from rotating along with the rotation of the rotating seat, therefore, when the rotating seat rotates, the stud moves upwards, the stud drives the connecting column to move, under the continuous rotation output of the driving motor, the stud moves back to the top of the spiral groove, and rotates along with the rotation of the rotating seat, the first tension spring generates a reaction force under pressure, the first limiting block is abutted against the end face of the connecting column, so that friction is increased, the stud can drive the connecting column to rotate along with the first limiting block when rotating, the driving motor continuously operates so that the stud drives the stud, at the moment, the second limiting block completely penetrates into the limiting chute and reaches the notch of the locking groove, and the second limiting block slides in the locking groove when the driving motor continuously drives the rotation, so that the two groups of sealing plates are mutually close until sealing with the two groups of corresponding ring baffles, the valve closing is completed, and the rotation of the driving motor can be stopped at any time, so that the purpose of regulating flow is achieved, and the throttling is completed.
Drawings
FIG. 1 is an overall structural representation of the present invention;
FIG. 2 is a view showing the construction of the inside of the sleeve according to the present invention;
FIG. 3 is a diagram showing a structural connection of the present invention;
FIG. 4 is a diagram showing a structural connection of the present invention (II);
FIG. 5 is a transverse cross-sectional view of the internal structure of the sleeve of the present invention;
fig. 6 is an explanatory view showing an internal structure of the anti-blocking assembly of the present invention.
In the figure: 1. the device comprises a sleeve, 2, a positioning top plate, 3, an enclosure, 4, an air vent, 5, a support column, 6, a driving motor, 7, a rotating seat, 8, a screw groove, 9, a screw bolt, 10, a first limiting block, 11, a connecting block, 12, a rotating block, 13, a damping spring piece, 14, a first connecting column, 15, a cover plate, 16, a positioning ring plate, 17, a ring baffle, 18, a first tension spring, 19, a positioning column, 20, a stabilizer bar, 21, a second limiting block, 22, a limiting chute, 23, a locking groove, 24, a second connecting column, 25, a penetrating groove, 26, a clamping groove, 27, a clamping block, 28, a second tension spring, 29, a pressing plate, 30, an anti-blocking rotating head, 31, a mounting groove, 32, a third tension spring, 33, a shifting block, 34 and a limiting rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the invention discloses a gas storage wellhead throttling device, which comprises a sleeve 1, wherein a positioning top plate 2 is fixed at the top of the sleeve 1, an anti-blocking component is clamped at the top of the positioning top plate 2, a driving component is fixedly arranged at the bottom of the sleeve 1, the driving component is rotationally connected with a throttling valve component through a connecting component, the top of the throttling valve component is elastically connected with the anti-blocking component through a connecting column II 24, and a connecting fastener for internally compressing, limiting and rotating is further arranged on the throttling valve component.
In this embodiment, the drive assembly can drive the throttle valve assembly through the coupling assembling and lock sealedly along with rotating to reverse drive assembly can rely on inside elastic component to realize opening and shutting certainly, realizes adjusting the purpose of throttle.
Referring to fig. 1-5, a driving motor 6 is fixed inside a sleeve 1 through three groups of support columns 5, the top output end of the driving motor 6 is connected with a rotating seat 7, a spiral groove 8 is formed inside the rotating seat 7, the spiral groove 8 is in threaded connection with a stud 9, the stud is limited in the spiral groove and can not completely withdraw, the stud can rotate along with the rotation of the rotating seat after withdrawing to the groove top, the extending end of the stud 9 is connected with a first limiting block 10, the front end of the first limiting block 10 is connected with a rotating block 12 through a connecting block 11, the rotating block 12 penetrates through the inside of a connecting column one 14, a plurality of groups of damping elastic sheets 13 are uniformly distributed inside the connecting column one 14, two groups of sealing cover plates 15 are connected through a first tension spring 18, one group of sealing plates 15 are fixed at the top of the connecting column one 14, two end faces of the positioning ring plates 16 are fixedly provided with a ring baffle 17, the top of the connecting column one 14 is integrally provided with a positioning column 19, a top fixedly connecting stabilizer 20 penetrates through the top of the connecting column one end 24, a second limiting groove 21 penetrates through the inside the connecting column one end 25, two groups of sealing cover plates 22 penetrate through the two limiting grooves 22, and the two sides of the two limiting grooves 22 penetrate through the two limiting grooves 22 are designed at the two sides of the two ends of the connecting groove 22.
In this embodiment, when the driving motor 6 rotates, the output end drives the rotating seat 7 to rotate along with it, and because the side edge of the rotating block 12 contacts with the damping elastic sheet 13, the stud 9 can be prevented from rotating along with the rotation of the rotating seat 7, so when the rotating seat 7 rotates, the stud 9 moves upwards, the stud 9 drives the first connecting column 14 to move, under the continuous rotation output of the driving motor 6, the stud 9 retreats to the top of the spiral groove 8, along with the rotation of the rotating seat 7, the first tension spring 18 generates a reaction force under compression, the first limiting block 10 abuts against the end face of the second connecting column 24, thereby increasing friction, and the stud 9 can be driven to rotate along with it by cooperation of the damping elastic sheet 13, the driving motor 6 continuously runs the stud 9, at this time, the second limiting block 21 completely penetrates into the limiting chute 22 and reaches the notch of the locking groove 23, under the continuous rotation of the driving motor 6, the second limiting block 21 slides in the locking groove 23, so that the two groups of plates 15 approach each other, until the corresponding rings 17 are sealed, the sealing of the two groups of baffles 17 is completed, and the throttle valve is also driven, and the purpose of the throttle valve is achieved at any time.
Referring to fig. 1-6, one end of the second connecting column 24 is connected with a set of cover plates 15, the other end of the second connecting column 24 is connected with a pressing plate 29 through a second tension spring 28, an anti-blocking rotating head 30 is rotatably installed at the top of the pressing plate 29, an installation groove 31 is formed in the anti-blocking rotating head 30, a plurality of groups of third tension springs 32 are installed in the installation groove 31, one end of each third tension spring 32 is fixed in the installation groove 31, the other end of each third tension spring 32 is connected with a shifting block 33, a limiting rod 34 is arranged outside one end of the second connecting column 24, which is close to the anti-blocking rotating head 30, the limiting rod 34 is arranged below the positioning top plate 2, an enclosure 3 is arranged outside the top of the positioning top plate 2, an air vent 4 corresponding to the shifting block 33 is formed in the enclosure 3, a clamping groove 26 is formed in the positioning top plate 2, a clamping block 27 penetrates through the inside the clamping groove 26, and the clamping block 27 is fixedly arranged at the bottom of the pressing plate 29.
In this embodiment, the limiting rod 34 limits when the first tension spring 18 is extruded by the first connecting column 14, so that the first tension spring 18 is prevented from driving the first connecting column 14 to displace, the limiting block 21 cannot penetrate into the limiting sliding groove 22 to cause the adjustment of the throttle valve, and when the throttle valve is completely opened, the air vent 4 is easily blocked due to the large flow, and at the moment, the air is prevented from being blocked by freezing by virtue of the self pressure inside the device, when the air flows near the anti-rotation plug 30, the blocking blocks 33 arranged outside two sides of the air are protruded and are close to the air vent 4, the anti-blocking rotary head 30 is driven to rotate when high-speed air flows through, and the blocking blocks 33 are close to the air outlet, so that the air vent 4 can be blocked by pulling, and the air vent 4 is prevented from being blocked.
Working principle: the invention relates to a gas storage wellhead throttling device, when a throttling valve is fully opened, the gas flow is larger at the moment, the temperature of the gas is too low due to compression, the vent 4 is easy to be frozen and blocked, when the high-speed high-pressure gas flows near an anti-rotation plug 30, the air flow is disturbed when the air flow flows through due to the fact that a poking block 33 on the outer parts of the two sides of the high-speed high-pressure gas is relatively protruded, the anti-rotation plug 30 is driven to rotate when the air flow flows through due to the poking block 33 is close to the vent 4, and the vent 4 can be scanned due to the fact that the poking block 33 is close to the vent 4, so that the vent 4 is prevented from being frozen and blocked;
When the flow is required to be regulated, the driving motor 6 is started to drive the rotating seat 7 to rotate, so that the stud 9 is upwards displaced, the stud 9 is upwards displaced to drive the first connecting column 14 to be displaced, under the continuous rotation output of the driving motor 6, the stud 9 is retreated to the top of the groove of the spiral groove 8, along with the rotation of the rotating seat 7, the first tension spring 18 generates a reaction force under pressure, the first limiting block 10 is abutted against the end face of the first connecting column 14, so that friction is increased, the stud 9 can drive the first connecting column 14 to rotate along with the stud 9 during rotation by matching with the damping elastic sheet 13, the driving motor 6 continuously runs to drive the stud 9, at the moment, the second limiting block 21 completely penetrates into the limiting chute 22 and reaches the notch of the locking groove 23, and under the continuous driving of the driving motor 6, the second limiting block 21 slides in the locking groove 23, so that the two groups of sealing plates 15 are mutually close until the sealing with the two groups of corresponding ring baffles 17 is completed, the rotation of the driving motor 6 can be stopped at any time, and the air flow is regulated, so that throttling purposes can be achieved.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (5)
1. The gas storage wellhead throttling device comprises a sleeve (1), wherein a positioning top plate (2) is fixed at the top of the sleeve (1), and is characterized in that an anti-blocking assembly is clamped at the top of the positioning top plate (2), a driving assembly is fixedly arranged at the bottom of the sleeve (1), the driving assembly is rotationally connected with a throttling valve assembly through a connecting assembly, the top of the throttling valve assembly is elastically connected with the anti-blocking assembly through a connecting post II (24), and a connecting fastener for internally compressing, limiting and rotating is further arranged on the throttling valve assembly;
The driving assembly comprises supporting columns (5), a driving motor (6) and a rotating seat (7), wherein the driving motor (6) is fixed in the sleeve (1) through three groups of supporting columns (5), and the top output end of the driving motor (6) is connected with the rotating seat (7);
The connecting assembly comprises a stud (9), a first limiting block (10), a connecting block (11) and a rotating block (12), wherein a screw groove (8) is formed in the rotating seat (7), the screw groove (8) is in threaded connection with the stud (9), the extending end of the stud (9) is connected with the first limiting block (10), the front end of the first limiting block (10) is connected with the rotating block (12) through the connecting block (11), the rotating block (12) penetrates through the connecting column I (14), and a plurality of groups of damping elastic sheets (13) are uniformly distributed in the connecting column I (14);
The throttle valve assembly comprises a first connecting column (14), a sealing cover plate (15), a positioning ring plate (16), a ring baffle plate (17) and a first tension spring (18), wherein two groups of sealing cover plates (15) are connected through the first tension spring (18), one group of sealing cover plates (15) are fixed at the top of the first connecting column (14), the positioning ring plate (16) is fixedly arranged between the two groups of sealing cover plates (15) on the inner wall of the sleeve (1), and the ring baffle plates (17) are fixedly arranged at two end faces of the positioning ring plate (16);
The connecting fastener comprises a positioning column (19), a stabilizer bar (20) and a limiting block (21), wherein the positioning column (19) is integrally arranged at the top of the first connecting column (14), the stabilizer bar (20) is fixedly connected to the top of the first connecting column (19), the stabilizer bar (20) penetrates through a penetrating groove (25) formed in the second connecting column (24), two groups of second limiting blocks (21) are arranged outside the positioning column (19), the second limiting blocks (21) penetrate through the limiting sliding groove (22), the limiting sliding groove (22) is formed in two sides of the front end of the penetrating groove (25), a lock groove (23) with a threaded design is formed in the inner end of the limiting sliding groove (22), one end of the second connecting column (24) is connected with a group of sealing plates (15), and the other end of the second connecting column (24) is connected with a pressing plate (29) through a second tension spring (28).
2. The gas storage wellhead throttling device according to claim 1, wherein the anti-blocking assembly comprises an anti-blocking rotating head (30), a mounting groove (31), a third tension spring (32) and a shifting block (33), the top of the pressing plate (29) is rotatably provided with the anti-blocking rotating head (30), the mounting groove (31) is formed in the anti-blocking rotating head (30), a plurality of groups of third tension springs (32) are arranged in the mounting groove (31), one end of each third tension spring (32) is fixed in the mounting groove (31), and the other end of each third tension spring (32) is connected with the shifting block (33).
3. A gas storage wellhead throttling arrangement according to claim 2, characterized in that the second connecting column (24) is provided with a stop lever (34) outside one end close to the anti-blocking rotary head (30), and the stop lever (34) is arranged below the positioning top plate (2).
4. A gas storage wellhead throttling arrangement according to claim 2, characterised in that the top of the positioning top plate (2) is provided with an enclosure (3) outside the anti-blocking swivel (30), and a vent (4) corresponding to the dial block (33) is provided in the enclosure (3).
5. The gas storage wellhead throttling device according to claim 1, characterized in that a clamping groove (26) is formed in the positioning top plate (2), a clamping block (27) penetrates through the clamping groove (26), and the clamping block (27) is fixedly arranged at the bottom of the pressing plate (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310859776.8A CN116696472B (en) | 2023-07-13 | 2023-07-13 | Gas storage well head throttling arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310859776.8A CN116696472B (en) | 2023-07-13 | 2023-07-13 | Gas storage well head throttling arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116696472A CN116696472A (en) | 2023-09-05 |
| CN116696472B true CN116696472B (en) | 2024-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310859776.8A Active CN116696472B (en) | 2023-07-13 | 2023-07-13 | Gas storage well head throttling arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116696472B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507856A (en) * | 2015-11-30 | 2016-04-20 | 中国石油天然气股份有限公司 | Gas storage wellhead throttling device and throttling method |
| CN109763797A (en) * | 2019-03-07 | 2019-05-17 | 陕西航天德林科技集团有限公司 | A kind of underground throttle device |
| CN113251232A (en) * | 2021-06-29 | 2021-08-13 | 成都创源油气技术开发有限公司 | Gas storage wellhead throttling device |
| CN214170494U (en) * | 2020-12-02 | 2021-09-10 | 泰州油恒油气工程服务有限公司 | Oil field production tree filters and prevents stifled glib talker |
| CN113818847A (en) * | 2021-10-11 | 2021-12-21 | 西南石油大学 | Throttle device for gas storage |
-
2023
- 2023-07-13 CN CN202310859776.8A patent/CN116696472B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507856A (en) * | 2015-11-30 | 2016-04-20 | 中国石油天然气股份有限公司 | Gas storage wellhead throttling device and throttling method |
| CN109763797A (en) * | 2019-03-07 | 2019-05-17 | 陕西航天德林科技集团有限公司 | A kind of underground throttle device |
| CN214170494U (en) * | 2020-12-02 | 2021-09-10 | 泰州油恒油气工程服务有限公司 | Oil field production tree filters and prevents stifled glib talker |
| CN113251232A (en) * | 2021-06-29 | 2021-08-13 | 成都创源油气技术开发有限公司 | Gas storage wellhead throttling device |
| CN113818847A (en) * | 2021-10-11 | 2021-12-21 | 西南石油大学 | Throttle device for gas storage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116696472A (en) | 2023-09-05 |
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