CN112145115B - Oil recovery well head connecting device - Google Patents
Oil recovery well head connecting device Download PDFInfo
- Publication number
- CN112145115B CN112145115B CN202011244844.2A CN202011244844A CN112145115B CN 112145115 B CN112145115 B CN 112145115B CN 202011244844 A CN202011244844 A CN 202011244844A CN 112145115 B CN112145115 B CN 112145115B
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- pipe
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- oil
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- 238000011084 recovery Methods 0.000 title description 2
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a wellhead connecting device of a production well, belonging to the field of oil well connecting pipes. According to the invention, the movable pipe is rotated and fixed on the outer side of the external threaded pipe, so that the first convex pipe and the second convex pipe can be butted, the special shapes of the two pipes and the convex cushion cover can increase the sealing property of oil circulation, and meanwhile, the detection pipe is convenient to disassemble, can be conveniently assembled and disassembled, has better sealing property and can be conveniently used by workers.
Description
Technical Field
The invention relates to the field of oil well connecting pipes, in particular to a wellhead connecting device for an oil production well.
Background
The oil well is the passageway that oil rose in the oil field, for can observing oil and oil pipe to better exploitation oil can be equipped with a plurality of connecting pipes on the well head of oil well, can conveniently detect and maintain oil and oil pipe.
The technical personnel in the field provide the oil production well wellhead connecting device aiming at the problems that the existing detection pipeline is relatively complex to install and disassemble when being butted with an oil production well wellhead connecting pipe, and the detection pipeline is relatively poor in sealing performance after being installed, so that inconvenience is brought to detection and maintenance work.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a wellhead connecting device of an oil production well, which has the advantages of convenient installation and disassembly of a detection pipeline and better sealing property, and solves the problems of inconvenient installation and disassembly of the detection pipeline on an oil pipe and poor sealing property.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides an oil production well head connecting device, is including advancing oil pipe, the right-hand member fixed mounting who advances oil pipe has first flange, the right side of first flange is equipped with first connecting pipe, the right-hand member that advances oil pipe is linked together through first flange and first connecting pipe fixed connection, the right-hand member fixed mounting of first connecting pipe has the second flange, the right side of second flange is equipped with out oil pipe, the right-hand member of first connecting pipe passes through second flange and goes out oil pipe fixed connection and is linked together, the top fixedly connected with of first connecting pipe and its second connecting pipe that is linked together, the top fixed mounting of second connecting pipe has the third flange, the top of third flange is equipped with outer screw thread pipe, outer screw thread pipe passes through third flange and is linked together with second connecting pipe fixed connection, outer screw thread pipe's top fixedly connected with rather than the first bulge that is linked together, outer screw thread pipe's outside threaded connection has the movable tube, the inboard rotation of movable tube is connected with detects the pipe, the top of detecting tube runs through and extends to the outside of movable tube, the inboard bottom fixedly connected with second bulge cover, the top of first bulge cover, the contact of second bulge cover, the inboard of second bulge cover, the convex bulge cover, the contact of second bulge cover, the inboard of second bulge cover, the contact of second bulge cover is connected with the outside bulge pipe.
Preferably, the inner side of the movable tube is fixedly connected with an annular block, the outer part of the detection tube is provided with an annular groove, and the inner side of the annular block extends to the inner side of the annular groove.
Preferably, an oil seal is arranged at the rotary connection position of the inner side of the annular block and the annular groove, and the oil seal is positioned at the inner side of the annular groove.
Preferably, the external thread pipe is fixedly connected with an annular supporting block, the top of the annular supporting block is fixedly connected with an annular sealing gasket, and the top of the annular sealing gasket is contacted with the movable pipe.
Preferably, a pressure relief valve is fixedly mounted on the outside of the first connecting pipe.
Preferably, the interior of the detection tube is fixedly connected with a funnel tube, and the bottom of the funnel tube is fixedly connected and communicated with the second convex tube.
Preferably, the outer portion of the movable tube is fixedly connected with an anti-slip pad, and the anti-slip pad is made of rubber materials.
Preferably, first bulge venturi tube all is round platform form with the second bulge venturi tube, the last mouth of pipe of first bulge venturi tube is less than its mouth of pipe down, the last mouth of pipe of second bulge venturi tube is less than its mouth of pipe down.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) In the scheme, the bottom of the movable pipe is sleeved on the outer side of the outer threaded pipe, the movable pipe is rotated to be fixed on the outer side of the outer threaded pipe, the detection pipe and the second convex pipe on the inner side of the detection pipe also descend, the inner side of the second convex pipe can be clamped on the outer side of the first convex pipe properly, the inner side of the convex cushion cover is in contact with the first convex pipe, the second convex pipe and the convex cushion cover are matched in special shapes to increase the stress area of the first convex pipe and the second convex pipe, the sealing performance of the first convex pipe and the second convex pipe can be effectively increased, a valve on the oil outlet pipe is closed, oil enters the first connecting pipe from the oil inlet pipe and then enters the second connecting pipe and the outer threaded pipe, so that the oil can finally enter the detection pipe through the first convex pipe and the second convex pipe, the oil pipe joint structure has the advantages that the detection equipment can conveniently detect and maintain oil and pipelines through the detection pipe, the three valves are switches for controlling oil passages on the pipelines, the first flange and the second flange are convenient for assembling the first connecting pipe, the third flange is convenient for replacing the external threaded pipe, the external threaded pipe is prevented from being damaged after being worn, when the detection pipe needs to be disassembled, the movable pipe is reversely rotated to be separated from the external threaded pipe.
(2) This scheme, through ring channel and annular piece matching, when can be convenient for rotate the movable tube, the movable tube downstream on the external thread pipe, the test tube also can descend, and first convex pipe can get into the inboard of the protruding venturi tube of second.
(3) This scheme, through the setting of oil blanket, can increase the leakproofness of movable tube and test tube, avoids first protruding venturi tube and the protruding venturi tube of second leakproofness variation after long-time the use, and the oil is spilled over by the gap between movable tube and the test tube.
(4) This scheme is sealed through annular gasket on the annular supporting shoe, can increase the leakproofness of activity pipe and external screw thread pipe, avoids first protruding venturi tube and the protruding venturi tube of second leakproofness variation after long-time the use, and the oil is spilled over by the gap between activity pipe and the external screw thread pipe.
(5) This scheme, the relief valve through the installation can effectually avoid the oil to strike oil pipe's pressure, guarantees the life of pipeline, avoids intraductal pressure too big and break.
(6) This scheme can avoid dismantling the test tube through the funnel pipe after, and the oil can not remain in the test tube, and the oil of being convenient for is in the flow of test tube, facilitates the use.
(7) This scheme, the hand of can being convenient for through the slipmat rotates in the movable tube outside, avoids the hand to skid and inconvenient rotation movable tube when the movable tube outside rotates, and the coefficient of friction between slipmat and the hand can make things convenient for the hand to rotate the movable tube greatly, and rubber has fine wear-resisting and corrosion-resistant characteristic convenient to use, and the material is also convenient for acquire simultaneously.
(8) This scheme, through the special round platform shape of first convex venturi tube and second convex pipe, and can match, atress when can make things convenient for two pipe seal, two indirect area of contact are also bigger, and sealed by the convex pad cover again, the leakproofness of the first convex venturi tube of greatly increased and second convex pipe intercommunication avoids the leakage of oil.
Drawings
FIG. 1 is a schematic sectional front view of the present invention;
FIG. 2 is a schematic view of a front perspective view of a first male pipe according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 4 is a schematic perspective view of the connection between the movable tube and the ring block according to the present invention;
FIG. 5 is a schematic front perspective view of a second convex tube and a funnel tube according to the present invention.
The reference numbers in the figures illustrate:
1. an oil inlet pipe; 2. a first flange; 3. a first connecting pipe; 4. a second flange; 5. an oil outlet pipe; 6. a second connecting pipe; 7. a third flange; 8. an externally threaded tube; 9. a first convex pipe; 10. a movable tube; 11. a detection tube; 12. a second convex pipe; 13. a convex cushion cover; 14. a valve; 15. a ring block; 16. an annular groove; 17. oil sealing; 18. an annular support block; 19. an annular seal; 20. a pressure relief valve; 21. a funnel tube; 22. a non-slip mat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, a wellhead connecting device for an oil production well comprises an oil inlet pipe 1, a first flange 2 fixedly installed at the right end of the oil inlet pipe 1, a first connecting pipe 3 installed at the right side of the first flange 2, a second flange 4 fixedly installed at the right end of the first connecting pipe 3 and an oil outlet pipe 5 installed at the right side of the second flange 4, a first connecting pipe 3 fixedly connected and communicated with the oil outlet pipe 5 through the second flange 4 at the right end of the first connecting pipe 1, a second connecting pipe 6 fixedly connected and communicated with the first connecting pipe 3 at the top end of the first connecting pipe 3, a third flange 7 fixedly installed at the top end of the second connecting pipe 6, an external thread pipe 8 installed at the top end of the third flange 7, the external thread pipe 8 fixedly connected and communicated with the second connecting pipe 6 through the third flange 7, a first convex pipe 9 fixedly connected and communicated with the external thread pipe 8 at the top end of the external thread pipe 8, the external thread of the external thread pipe 8 is connected with a movable pipe 10, the inner side of the movable pipe 10 is rotatably connected with a detection pipe 11, the top end of the detection pipe 11 penetrates through and extends to the external part of the movable pipe 10, the bottom of the inner side of the detection pipe 11 is fixedly connected with a second convex pipe 12, the top of the first convex pipe 9 extends to the inner side of the second convex pipe 12, the inner side of the second convex pipe 12 is fixedly connected with a convex cushion cover 13, the external part of the first convex pipe 9 is contacted with the convex cushion cover 13, the external parts of the oil inlet pipe 1, the oil outlet pipe 5 and the second connecting pipe 6 are all fixedly provided with valves 14, the bottom of the movable pipe 10 is sleeved on the external thread pipe 8, the movable pipe 10 is rotated, the movable pipe 10 is fixed on the external side of the external thread pipe 8, at the moment, the detection pipe 11 and the second convex pipe 12 on the internal side of the detection pipe also descend, the internal side of the second convex pipe 12 can be properly clamped on the external side of the first convex pipe 9, the inner side of the convex cushion cover 13 is in contact with the first convex pipe 9, the stress area of the first convex pipe 9 and the stress area of the second convex pipe 12 can be increased due to the special shape matching of the first convex pipe 9, the second convex pipe 12 and the convex cushion cover 13, the sealing performance of the first convex pipe 9 and the second convex pipe 12 can be effectively increased, the valve 14 on the oil outlet pipe 5 is closed, oil enters the first connecting pipe 3 from the oil inlet pipe 1 and then enters the second connecting pipe 6 and the external threaded pipe 8, so that the oil finally can enter the detection pipe 11 through the first convex pipe 9 and the second convex pipe 12, detection and maintenance of the oil and pipelines through the detection pipe 11 are facilitated by detection equipment, the three valves 14 are switches for controlling an oil path on each pipeline, the first flange 2 and the second flange 4 facilitate assembly of the first connecting pipe 3, the third flange 7 facilitates replacement of the external threaded pipe 8, damage of the external threaded pipe 8 after abrasion is avoided, when the detection pipe 11 needs to be disassembled, the movable pipe 10 is reversely rotated, the movable pipe 10 is separated from the movable pipe 8, the external threaded pipe 8 is fixed on the outer side, the outer side of the convex cushion cover, the convex pipe can be conveniently disassembled, the convex pipe 12, the convex cushion cover, the sealing performance of the convex pipe can be conveniently increased, and the sealing performance of the convex pipe can be conveniently disassembled by a worker, and the convex pipe 11 can be conveniently disassembled, and the male pipe can be conveniently disassembled by the male pipe.
Further, the inner side of the movable pipe 10 is fixedly connected with the annular block 15, the annular groove 16 is formed in the outer portion of the detection pipe 11, the inner side of the annular block 15 extends to the inner side of the annular groove 16, the annular groove 16 is matched with the annular block 15, when the movable pipe 10 can be rotated conveniently, the movable pipe 10 moves downwards on the external thread pipe 8, the detection pipe 11 can also descend, and the first convex pipe 9 can enter the inner side of the second convex pipe 12.
Further, the oil blanket 17 is installed to the inboard of annular piece 15 and the rotation junction of ring channel 16, and oil blanket 17 is located the inboard of ring channel 16, through oil blanket 17's setting, can increase the leakproofness of movable pipe 10 and detecting tube 11, avoids first protruding venturi tube 9 and second protruding venturi tube 12 leakproofness variation after long-time the use, and the oil is spilled over by the gap between movable pipe 10 and the detecting tube 11.
Further, an annular supporting block 18 is fixedly connected to the outside of the external threaded pipe 8, an annular sealing gasket 19 is fixedly connected to the top of the annular supporting block 18, the top of the annular sealing gasket 19 is in contact with the movable pipe 10, the sealing performance between the movable pipe 10 and the external threaded pipe 8 can be improved through the annular sealing gasket 19 on the annular supporting block 18, and the situation that the sealing performance of the first convex pipe 9 and the second convex pipe 12 is poor after long-time use and oil overflows from a gap between the movable pipe 10 and the external threaded pipe 8 is avoided.
Further, the outside fixed mounting of first connecting pipe 3 has relief valve 20, and the relief valve 20 through the installation can effectually avoid the oil to strike oil pipe's pressure, guarantees the life of pipeline, avoids intraductal pressure too big and fracture.
Further, the inside fixedly connected with funnel pipe 21 of test tube 11, the bottom and the protruding venturi tube 12 fixed connection of second of funnel pipe 21 are linked together, can avoid dismantling test tube 11 back through funnel pipe 21, and the oil can not remain in test tube 11, and the oil of being convenient for is convenient for use in the flow of test tube 11.
Further, the outside fixedly connected with slipmat 22 of activity pipe 10, the material of slipmat 22 is rubber materials, can be convenient for the hand to rotate in the activity pipe 10 outside through slipmat 22, avoid the hand to skid and inconvenient rotation activity pipe 10 when the hand rotates in the activity pipe 10 outside, coefficient of friction between slipmat 22 and the hand can make things convenient for the hand to rotate activity pipe 10 greatly, rubber has fine wear-resisting and corrosion-resistant characteristic convenient to use, the material is also convenient for obtain simultaneously.
Further, first bulge venturi tube 9 all is the round platform form with second bulge venturi tube 12, the last mouth of pipe of first bulge venturi tube 9 is less than its mouth of pipe down, the last mouth of pipe of second bulge venturi tube 12 is less than its mouth of pipe down, through the special round platform shape of first bulge venturi tube 9 and second bulge venturi tube 12, and can match, atress when can make things convenient for two pipe seal, two indirect area of contact are also bigger, sealed by convex cushion cover 13 again, the leakproofness of the first bulge venturi tube 9 of can greatly increased and the 12 intercommunications of second bulge venturi tube, avoid the leakage of oil.
The working principle is as follows: the bottom of the movable tube 10 is sleeved on the outer side of the outer threaded tube 8, the movable tube 10 is rotated, the movable tube 10 is fixed on the outer side of the outer threaded tube 8, the detection tube 11 and the second convex tube 12 on the inner side of the detection tube also descend, the inner side of the second convex tube 12 can be clamped on the outer side of the first convex tube 9 properly, the inner side of the convex cushion cover 13 is in contact with the first convex tube 9, the circular truncated cone shapes of the first convex tube 9 and the second convex tube 12 are matched, the stress area of the first convex tube 9 and the second convex tube 12 can be increased, meanwhile, the convex cushion cover 13 is sealed, the sealing performance of the first convex tube 9 and the second convex tube 12 can be effectively increased, the valve 14 on the oil outlet tube 5 is closed, oil enters the first connecting tube 3 from the oil inlet tube 1 and then enters the second connecting tube 6 and the outer threaded tube 8, so that the oil can finally enter the detection tube 11 through the first convex tube 9 and the second convex tube 12, the invention is convenient for detection equipment to detect and maintain petroleum and pipelines through a detection pipe 11, an oil seal 17 and an annular sealing gasket 19 can further enhance the sealing performance of the connection between the detection pipe 11 and an external threaded pipe 8, three valves 14 are switches for controlling oil passages on each pipeline, a first flange 2 and a second flange 4 are convenient for assembling a first connecting pipe 3, a third flange 7 is convenient for replacing the external threaded pipe 8, the external threaded pipe 8 is prevented from being damaged after being worn, a pressure relief valve 20 can protect the pipelines, the excessive pressure in the pipelines is avoided, when the detection pipe 11 needs to be disassembled, the movable pipe 10 is rotated reversely to separate the movable pipe 10 from the external threaded pipe 8, the invention can enable a first convex pipe 9 and a second convex pipe 12 to be butted by rotating the movable pipe 10 and fixing the movable pipe outside the external threaded pipe 8, and the special shape of the two pipes and the convex gasket 13 can increase the sealing performance of petroleum circulation, also convenient the dismantlement simultaneously, can easy to assemble and dismantle detecting tube 11 and have better leakproofness can be convenient for the staff and use.
It should be noted that, all the devices in the present application are common devices in the market, and can be selected according to requirements when in specific use, and the circuit connection relationship of each device belongs to a simple series and parallel connection circuit, and there is no innovation point in the circuit connection, and those skilled in the art can implement the method easily, and belong to the prior art, and are not described again.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (7)
1. The utility model provides a production well wellhead connecting device, includes into oil pipe (1), its characterized in that: the right-hand member fixed mounting who advances oil pipe (1) has first flange (2), the right side of first flange (2) is equipped with first connecting pipe (3), the right-hand member that advances oil pipe (1) is through first flange (2) and first connecting pipe (3) fixed connection and is linked together, the right-hand member fixed mounting of first connecting pipe (3) has second flange (4), the right side of second flange (4) is equipped with out oil pipe (5), the right-hand member of first connecting pipe (3) is through second flange (4) and play oil pipe (5) fixed connection and be linked together, the top fixed connection of first connecting pipe (3) and second connecting pipe (6) that are linked together, the top fixed mounting of second connecting pipe (6) has third flange (7), the top of third flange (7) is equipped with external screw thread pipe (8), external screw thread pipe (8) are through third flange (7) and second connecting pipe (6) fixed connection and are linked together, the top fixed connection of external screw thread pipe (8) and its first flange (9) that is linked together, external screw thread pipe (10) are connected with the outside activity pipe (10) and be connected with outside and the activity pipe (11) and the activity detection pipe (10), the bottom of the inner side of the detection tube (11) is fixedly connected with a second convex tube (12), the first convex tube (9) and the second convex tube (12) are both in a circular truncated cone shape, the upper tube opening of the first convex tube (9) is smaller than the lower tube opening of the first convex tube, and the upper tube opening of the second convex tube (12) is smaller than the lower tube opening of the second convex tube; the top of first venturi tube (9) extends to the inboard of second venturi tube (12), the inboard fixedly connected with convex pad cover (13) of second venturi tube (12), the outside and the convex pad cover (13) contact of first venturi tube (9), the equal fixed mounting in outside of advancing oil pipe (1), producing oil pipe (5) and second connecting pipe (6) has valve (14).
2. A production well wellhead connection device according to claim 1, characterised in that: the inboard fixedly connected with ring block (15) of activity pipe (10), ring channel (16) have been seted up to the outside of detecting pipe (11), the inboard of ring block (15) extends to the inboard of ring channel (16).
3. A production well wellhead connection device according to claim 2, characterised in that: an oil seal (17) is installed at the rotary connection position of the inner side of the annular block (15) and the annular groove (16), and the oil seal (17) is located on the inner side of the annular groove (16).
4. A production well wellhead connection device according to claim 1, characterised in that: the outer portion of the outer threaded pipe (8) is fixedly connected with an annular supporting block (18), the top of the annular supporting block (18) is fixedly connected with an annular sealing gasket (19), and the top of the annular sealing gasket (19) is in contact with the movable pipe (10).
5. A production well wellhead connection device according to claim 1, characterised in that: and a pressure release valve (20) is fixedly arranged outside the first connecting pipe (3).
6. A production well wellhead connection device according to claim 1, characterised in that: the interior of the detection tube (11) is fixedly connected with a funnel tube (21), and the bottom of the funnel tube (21) is fixedly connected and communicated with the second convex tube (12).
7. A production well wellhead connection device according to claim 1, characterised in that: the outer portion of the movable tube (10) is fixedly connected with an anti-slip pad (22), and the anti-slip pad (22) is made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244844.2A CN112145115B (en) | 2020-11-10 | 2020-11-10 | Oil recovery well head connecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244844.2A CN112145115B (en) | 2020-11-10 | 2020-11-10 | Oil recovery well head connecting device |
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| Publication Number | Publication Date |
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| CN112145115A CN112145115A (en) | 2020-12-29 |
| CN112145115B true CN112145115B (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011244844.2A Active CN112145115B (en) | 2020-11-10 | 2020-11-10 | Oil recovery well head connecting device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114719195B (en) * | 2022-04-26 | 2024-03-12 | 迪威尔(建湖)精工科技有限公司 | Automatic oil pipe disassembly and assembly structure of oil drilling platform |
| CN115637947B (en) * | 2022-12-23 | 2023-03-10 | 大庆市华禹石油机械制造有限公司 | Pressure relief type petroleum well head |
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| GB8610007D0 (en) * | 1985-05-02 | 1986-05-29 | Drill Quip Inc | Wellhead equipment |
| CN109844475A (en) * | 2016-10-19 | 2019-06-04 | 瓦卢瑞克石油天然气法国有限公司 | For determining the device of the assembling quality of threaded tubular fastener |
| CN207161075U (en) * | 2017-09-25 | 2018-03-30 | 冯国勇 | A kind of sampling device for freezen protection at portal of petroleum attraction well |
| CN210710717U (en) * | 2019-10-23 | 2020-06-09 | 郑州正晟环保工程有限公司 | Self priming pump oil tank goes out oil pipe mounting structure |
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| CN112145115A (en) | 2020-12-29 |
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