CN114458178A - A choke manifold for petroleum well anti-leakage - Google Patents
A choke manifold for petroleum well anti-leakage Download PDFInfo
- Publication number
- CN114458178A CN114458178A CN202210048734.1A CN202210048734A CN114458178A CN 114458178 A CN114458178 A CN 114458178A CN 202210048734 A CN202210048734 A CN 202210048734A CN 114458178 A CN114458178 A CN 114458178A
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- fixedly connected
- block
- sleeve block
- connecting sleeve
- connecting pipe
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- 239000003208 petroleum Substances 0.000 title claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003129 oil well Substances 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to the technical field of oil wells, and discloses an anti-leakage throttle manifold for an oil well, which comprises a throttle pipe body, wherein one end of a first connecting pipe is fixedly connected with a first connecting sleeve block, an anti-leakage assembly is arranged inside the first connecting sleeve block, the anti-leakage assembly comprises a circulation groove, a plug, a baffle, a signal processing transmitter, a first conductive block and a second conductive block, and a connecting and fixing assembly is arranged between the first connecting sleeve block and the second connecting sleeve block. This a throttle manifold for petroleum well prevents earial drainage, through the design of preventing the earial drainage subassembly and connecting fixed subassembly, when the contact between first conducting block and the second conducting block, the operation of signal processing transmitter to in time send the signal to external monitor, thereby realize the real-time earial drainage work of preventing of throttle pipe body, compare with traditional mode, can in time realize writing and spill fixed point reconnaissance and maintenance work, guaranteed the transport work of petroleum.
Description
Technical Field
The invention relates to the technical field of oil wells, in particular to an anti-leakage throttle manifold for an oil well.
Background
The conventional connecting hoop of the oil well throttle pipe accounts for a large proportion in oil conveying equipment, and an internal thread structure is generally processed on the inner wall of a steel pipe and connected with an external thread of the oil pipe, so that effective butt joint of two sections of oil pipes is realized.
In petroleum transportation, because the oil is carried under the high pressure, this must require the fastness of pipe connection, wherein connect the hoop with the threaded connection of petroleum pipe to because do not set up at two pipe connections and prevent leaking detection device, when the condition of revealing appearing, can't in time realize leaking the fixed point reconnaissance of department and overhaul, influenced the transport work of oil.
Disclosure of Invention
Technical problem to be solved
In view of the deficiencies of the prior art, the present invention provides an anti-drain choke manifold for an oil well to solve the problems set forth in the background above.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the throttling pipe manifold comprises a throttling pipe body, wherein the throttling pipe body is composed of a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is fixedly connected with a first connecting sleeve block, and an anti-leakage assembly is arranged inside the first connecting sleeve block.
The anti-leakage component comprises a circulation groove, a plug, a baffle, a signal processing transmitter, a first conductive block and a second conductive block, the circulation groove is formed in the bottom of the inner side of the first connecting sleeve block, the groove is formed in the inside of the first connecting sleeve block, the plug is slidably sleeved in the circulation groove, the baffle is fixedly connected to one end of the plug, the signal processing transmitter is fixedly installed on one side of the inner cavity of the groove, the first conductive block is fixedly connected to the input end of the signal processing transmitter, and the second conductive block is fixedly connected to one side of the baffle.
The outer side of the second connecting pipe is fixedly sleeved with a fixed sleeve plate, one side of the fixed sleeve plate is fixedly connected with a second connecting sleeve block, and a connecting and fixing component is arranged between the first connecting sleeve block and the second connecting sleeve block.
Preferably, the connecting and fixing assembly comprises two positioning rods, two check blocks and two slots, the two positioning rods are symmetrically inserted into the top end and the bottom end of the first connecting sleeve block in a sliding mode, the two check blocks are fixedly connected to one ends of the two positioning rods respectively, the two slots are symmetrically arranged at the top end and the bottom end of the second connecting sleeve block, and the other ends of the positioning rods are inserted into the slots.
Preferably, the top and the bottom of the first connecting sleeve block are both provided with guide grooves, and the inside of each guide groove is symmetrically and fixedly connected with two guide rods.
Preferably, the bottom of each positioning rod is symmetrically and fixedly connected with two fixing rods, one end of each fixing rod is fixedly connected with a movable sleeve block, and the movable sleeve blocks are respectively sleeved on the outer sides of the two guide rods in a sliding mode.
Preferably, the outer sides of the two guide rods are movably sleeved with first springs, one ends of the first springs are fixedly connected with one ends of the inner cavities of the guide grooves, and the other ends of the first springs are fixedly connected with one side of the movable sleeve block.
Preferably, one end of the second connecting pipe is fixedly connected with a connector, the connector is inserted into the first connecting pipe, and the first connecting sleeve block is attached to the fixed sleeve plate.
Preferably, a sealing ring is fixedly embedded in one side of the plug, a second spring is symmetrically and fixedly connected to the other side of the baffle, and one end of the second spring is fixedly connected to the other side of the inner cavity of the groove.
(III) advantageous effects
Compared with the prior art, the invention provides the throttle manifold for preventing the leakage flow of the oil well, which has the following beneficial effects:
the throttle manifold for preventing the leakage of the petroleum well can realize the insertion connection between the positioning rod and the slot by utilizing the elastic potential energy of the first spring in the connecting and fixing component after the connecting rod head is inserted from one end of the first connecting pipe through the design of the leakage-preventing component and the connecting and fixing component, so as to realize the connecting and fixing and sealing of the first connecting pipe and the second connecting pipe, and then in the using process, when the leakage condition occurs at the joint of the first connecting pipe and the second connecting pipe, liquid can flow into the flowing groove in the leakage-preventing component, the plug head is driven to move into the groove under the driving force of the liquid, the baffle can be driven to move under the movement of the plug head, when the first conducting block is contacted with the second conducting block, the signal processing transmitter operates and sends a signal to an external monitoring room in time, so as to realize the real-time leakage-preventing work of the throttle pipe body, compared with the traditional mode, the method can realize the writing and leaking fixed-point exploration and maintenance work in time, and ensures the petroleum conveying work.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic side sectional view of a first connecting tube according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention.
In the figure: 1. a throttle tube body; 101. a first connecting pipe; 102. a second connecting pipe; 2. a first connecting sleeve block; 3. fixing the sleeve plate; 4. a second connecting sleeve block; 5. a connector; 6. positioning a rod; 7. a guide groove; 8. a stopper; 9. a guide bar; 10. fixing the rod; 11. a movable sleeve block; 12. a first spring; 13. a slot; 14. a circulation tank; 15. a groove; 16. a plug; 17. a baffle plate; 18. a second spring; 19. a signal processing transmitter; 20. a first conductive block; 21. and a second conductive block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme, in particular to an anti-leakage throttle manifold for an oil well, which comprises a throttle pipe body 1, wherein the throttle pipe body 1 is a metal pipeline for the oil well, and referring to figures 1 and 2, the throttle pipe body 1 consists of a first connecting pipe 101 and a second connecting pipe 102, one end of the first connecting pipe 101 is fixedly connected with a first connecting sleeve block 2, an anti-leakage assembly is arranged inside the first connecting sleeve block 2, referring to figures 4 and 5, the anti-leakage assembly comprises a circulation groove 14, a groove 15, a plug 16, a baffle 17, a signal processing emitter 19, a first conductive block 20 and a second conductive block 21, the circulation groove 14 is arranged at the bottom of the inner side of the first connecting sleeve block 2, if the connection between the first connecting pipe 101 and the second connecting pipe 102 is leaked, liquid can flow into the circulation groove 14 through a gap, the groove 15 is arranged inside the first connecting sleeve block 2, the plug 16 is sleeved in the circulation groove 14 in a sliding manner, and is sleeved with the circulation groove 14 in a sliding manner through the plug 16, so as to limit the lateral movement of the plug 16 in the circulation groove 14, the baffle 17 is fixedly connected to one end of the plug 16, the signal processing transmitter 19 is fixedly installed on one side of the inner cavity of the groove 15, when leakage occurs, the signal processing transmitter 19 can send signals to an external monitoring room to realize timely processing, the first conductive block 20 is fixedly connected to the input end of the signal processing transmitter 19, the second conductive block 21 is fixedly connected to one side of the baffle 17, when the first conductive block 20 contacts with the second conductive block 21, the signal processing transmitter 19 operates, the sealing ring is fixedly embedded on one side of the plug 16, the second spring 18 is symmetrically and fixedly connected to the other side of the baffle 17, referring to fig. 5, at this time, the second spring 18 is in an unstressed state, one end of the second spring 18 is fixedly connected to the other side of the inner cavity of the groove 15, the elastic potential energy of the second spring 18 is utilized to realize that the choke plug 16 can automatically return to the original position when being stressed.
A fixed sleeve plate 3 is fixedly sleeved on the outer side of a second connecting pipe 102, one end of the second connecting pipe 102 is fixedly connected with a connector 5, the connector 5 is inserted in the first connecting pipe 101, the first connecting sleeve block 2 is attached to the fixed sleeve plate 3, the connection between the first connecting pipe 101 and the second connecting pipe 102 is realized by the insertion between the connector 5 and the first connecting pipe 101, one side of the fixed sleeve plate 3 is fixedly connected with a second connecting sleeve block 4, a connecting and fixing component is arranged between the first connecting sleeve block 2 and the second connecting sleeve block 4, referring to the attached drawings 2 and 3, the connecting and fixing component comprises two positioning rods 6, two check blocks 8 and two slots 13, the two positioning rods 6 are symmetrically inserted at the top end and the bottom end of the first connecting sleeve block 2 in a sliding and inserting manner, the sliding and inserting connection between the positioning rods 6 and the first connecting sleeve block 2 is realized to limit the overall system movement of the positioning rods 6, two dog 8 are fixed connection respectively in the one end of two locating levers 6, and two slots 13 symmetry are seted up on the top and the bottom of second connecting sleeve piece 4, and the other end of locating lever 6 is pegged graft in the inside of slot 13, through pegging graft between locating lever 6 and the slot 13 to realize that the connection between first connecting pipe 101 and the second connecting pipe 102 is fixed.
The top and the bottom of the first connecting sleeve block 2 are both provided with a guide groove 7, the inside of the guide groove 7 is symmetrically and fixedly connected with two guide rods 9, the bottom of the positioning rod 6 is symmetrically and fixedly connected with two fixed rods 10, one end of each fixed rod 10 is fixedly connected with a movable sleeve block 11, the two movable sleeve blocks 11 are respectively sleeved on the outer sides of the two guide rods 9 in a sliding manner, the movable sleeve blocks 11 are sleeved with the guide rods 9 in a sliding manner to limit the longitudinal movement of the movable sleeve blocks 11 on the guide rods 9, the outer sides of the two guide rods 9 are respectively sleeved with a first spring 12 in a movable manner, refer to the attached drawing 3, at the moment, the first spring 12 is in an unstressed state, one end of the first spring 12 is fixedly connected with one end of an inner cavity of the guide groove 7, the other end of the first spring 12 is fixedly connected with one side of the movable sleeve block 11, and the stability of the positioning rod 6 inserted in the slot 13 can be effectively ensured by utilizing the elastic potential energy of the first spring 12, and then, the stability of the connection between the first connection pipe 101 and the second connection pipe 102 is ensured.
The working principle of the device is as follows: when in use, the two stoppers 8 are pulled outwards at the same time. The stopper 8 is forced to move to drive the positioning rod 6 to move, the positioning rod 6 is moved to drive the two fixing rods 10 to move, the two fixing rods 10 are moved to drive the two movable sleeve blocks 11 to move upwards on the two guide rods 9, the two movable sleeve blocks 11 move to enable the two first springs 12 to be stressed and compressed, after the two positioning rods 6 are pulled to a certain distance, a worker can insert the connector 5 at one end of the second connecting pipe 102 from one end of the first connecting pipe 101 until one side of the first connecting sleeve block 2 is attached to one side of the fixed sleeve plate 3.
The two stop blocks 8 are loosened, then the engagement between the positioning rod 6 and the slot 13 can be realized under the resilience of the first spring 12, and then the connection and fixation between the first connecting pipe 101 and the second connecting pipe 102 are realized, then in the use process, if the joint of the first connecting pipe 101 and the second connecting pipe 102 leaks, the liquid moves into the circulation groove 14, the plug 16 is driven to move towards the groove 15 under the pushing of the liquid, the plug 16 moves to drive the baffle 17 to move, the baffle 17 moves to enable the two second springs 18 to be stressed and stretched, meanwhile, the baffle 17 moves to drive the second conductive block 21 to move, when the second conductive block 21 is in contact with the first conductive block 20, the signal processing transmitter 19 operates to transmit signals to an external monitoring chamber, and therefore the real-time anti-leakage work of the throttle pipe body 1 is realized.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A choke manifold for preventing leakage flow from a petroleum well, comprising a choke body (1), characterized in that: the throttle pipe body (1) consists of a first connecting pipe (101) and a second connecting pipe (102), one end of the first connecting pipe (101) is fixedly connected with a first connecting sleeve block (2), and an anti-leakage assembly is arranged inside the first connecting sleeve block (2);
the anti-leakage assembly comprises a circulation groove (14), a groove (15), a plug (16), a baffle plate (17), a signal processing emitter (19), a first conductive block (20) and a second conductive block (21), wherein the circulation groove (14) is formed in the bottom of the inner side of the first connecting sleeve block (2), the groove (15) is formed in the first connecting sleeve block (2), the plug (16) is slidably sleeved in the circulation groove (14), the baffle plate (17) is fixedly connected to one end of the plug (16), the signal processing emitter (19) is fixedly arranged on one side of an inner cavity of the groove (15), the first conductive block (20) is fixedly connected to the input end of the signal processing emitter (19), and the second conductive block (21) is fixedly connected to one side of the baffle plate (17);
the outer side of the second connecting pipe (102) is fixedly sleeved with a fixed sleeve plate (3), one side of the fixed sleeve plate (3) is fixedly connected with a second connecting sleeve block (4), and a connecting and fixing component is arranged between the first connecting sleeve block (2) and the second connecting sleeve block (4).
2. A choke manifold for preventing blow-down of a petroleum well according to claim 1, wherein: the connecting and fixing assembly comprises two positioning rods (6), two check blocks (8) and two slots (13), the two positioning rods (6) are symmetrically inserted into the top end and the bottom end of the first connecting sleeve block (2) in a sliding mode, the two check blocks (8) are fixedly connected to one ends of the two positioning rods (6) respectively, the two slots (13) are symmetrically arranged at the top end and the bottom end of the second connecting sleeve block (4), and the other ends of the positioning rods (6) are inserted into the slots (13).
3. A choke manifold for preventing blow-down of a petroleum well according to claim 1, wherein: guide way (7) have all been seted up to the top and the bottom of first connecting sleeve piece (2), two guide bars (9) of the inside symmetry fixedly connected with of guide way (7).
4. A choke manifold for preventing blow-down of a petroleum well according to claim 2, wherein: the bottom of the positioning rod (6) is symmetrically and fixedly connected with two fixing rods (10), one end of each fixing rod (10) is fixedly connected with a movable sleeve block (11), and the movable sleeve blocks (11) are respectively sleeved on the outer sides of the two guide rods (9) in a sliding mode.
5. A choke manifold for preventing blow-down of a petroleum well according to claim 4, wherein: the outer sides of the two guide rods (9) are movably sleeved with first springs (12), one ends of the first springs (12) are fixedly connected with one ends of the inner cavities of the guide grooves (7), and the other ends of the first springs (12) are fixedly connected with one side of the movable sleeve block (11).
6. A choke manifold for preventing blow-down of a petroleum well according to claim 1, wherein: one end of the second connecting pipe (102) is fixedly connected with a connector (5), the connector (5) is inserted in the first connecting pipe (101), and the first connecting sleeve block (2) and the fixed sleeve plate (3) are attached to each other.
7. A choke manifold for preventing blow-down of a petroleum well according to claim 1, wherein: a sealing ring is fixedly embedded in one side of the plug (16), a second spring (18) is symmetrically and fixedly connected to the other side of the baffle (17), and one end of the second spring (18) is fixedly connected with the other side of the inner cavity of the groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048734.1A CN114458178B (en) | 2022-01-17 | 2022-01-17 | A throttle manifold for petroleum well prevents earial drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048734.1A CN114458178B (en) | 2022-01-17 | 2022-01-17 | A throttle manifold for petroleum well prevents earial drainage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114458178A true CN114458178A (en) | 2022-05-10 |
| CN114458178B CN114458178B (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210048734.1A Active CN114458178B (en) | 2022-01-17 | 2022-01-17 | A throttle manifold for petroleum well prevents earial drainage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114458178B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116202036A (en) * | 2023-03-20 | 2023-06-02 | 盐城市崇达石化机械有限公司 | Throttle manifold for preventing drainage of petroleum well |
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| AU2009101354A4 (en) * | 2009-10-30 | 2011-09-29 | Beijing Union University | Multi-level refined throttle manifold and automatic control system |
| CN103061698A (en) * | 2011-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Automatic throttling pipe converging system |
| CN104314493A (en) * | 2014-10-21 | 2015-01-28 | 江苏双辉机械制造有限公司 | Automatic remote control liquid-driving blowout-preventing choke manifold |
| CN208073395U (en) * | 2018-01-18 | 2018-11-09 | 江苏庆海石油机械有限公司 | A kind of oil well head device of easy disassembly |
| CN209991046U (en) * | 2019-04-15 | 2020-01-24 | 上海轻叶能源股份有限公司 | Pipeline joint leakage-proof device for oil exploitation |
| CN210033353U (en) * | 2019-04-26 | 2020-02-07 | 江苏瑞亿石油机械有限公司 | Novel choke manifold device |
| CN215568600U (en) * | 2021-05-06 | 2022-01-18 | 天津跃峰石油装备有限公司 | Petroleum casing joint |
| CN216714342U (en) * | 2021-12-10 | 2022-06-10 | 江苏普盛石化机械有限公司 | Well head device that leak protection performance is good |
-
2022
- 2022-01-17 CN CN202210048734.1A patent/CN114458178B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2009101354A4 (en) * | 2009-10-30 | 2011-09-29 | Beijing Union University | Multi-level refined throttle manifold and automatic control system |
| CN103061698A (en) * | 2011-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Automatic throttling pipe converging system |
| CN104314493A (en) * | 2014-10-21 | 2015-01-28 | 江苏双辉机械制造有限公司 | Automatic remote control liquid-driving blowout-preventing choke manifold |
| CN208073395U (en) * | 2018-01-18 | 2018-11-09 | 江苏庆海石油机械有限公司 | A kind of oil well head device of easy disassembly |
| CN209991046U (en) * | 2019-04-15 | 2020-01-24 | 上海轻叶能源股份有限公司 | Pipeline joint leakage-proof device for oil exploitation |
| CN210033353U (en) * | 2019-04-26 | 2020-02-07 | 江苏瑞亿石油机械有限公司 | Novel choke manifold device |
| CN215568600U (en) * | 2021-05-06 | 2022-01-18 | 天津跃峰石油装备有限公司 | Petroleum casing joint |
| CN216714342U (en) * | 2021-12-10 | 2022-06-10 | 江苏普盛石化机械有限公司 | Well head device that leak protection performance is good |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116202036A (en) * | 2023-03-20 | 2023-06-02 | 盐城市崇达石化机械有限公司 | Throttle manifold for preventing drainage of petroleum well |
| CN116202036B (en) * | 2023-03-20 | 2023-12-22 | 盐城市崇达石化机械有限公司 | Throttle manifold for preventing drainage of petroleum well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114458178B (en) | 2022-08-05 |
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