CN113622857B - High-pressure anti-corrosion integral wellhead device - Google Patents
High-pressure anti-corrosion integral wellhead device Download PDFInfo
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- CN113622857B CN113622857B CN202111001394.9A CN202111001394A CN113622857B CN 113622857 B CN113622857 B CN 113622857B CN 202111001394 A CN202111001394 A CN 202111001394A CN 113622857 B CN113622857 B CN 113622857B
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- 238000005260 corrosion Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 239000011241 protective layer Substances 0.000 claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005536 corrosion prevention Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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- 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
- E21B33/04—Casing heads; Suspending casings or tubings 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)
- Excavating Of Shafts Or Tunnels (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a high-pressure anti-corrosion integral wellhead device, which relates to the technical field of oil wellhead devices and comprises an oil pipe body, a casing head, a plurality of side oil and gas pipe assemblies and a suspension assembly, wherein the opposite end parts of the oil pipe body and the casing head are respectively provided with a sealing ring groove surrounding the center of the oil pipe body and the casing head, the two sealing ring grooves are correspondingly arranged to form a containing ring cavity, a rubber sealing ring gasket is arranged in the containing ring cavity, and the end part of a convex ring part is provided with a protective layer; the oil pipe body is provided with a plurality of through holes communicated with the notches, the jacking assembly is inserted into the through holes in a sliding manner, and one end of the jacking assembly abuts against the protective layer; the driving assembly is arranged on the oil pipe body and is used for driving the plurality of jacking assemblies to move in the through hole and abut against the protective layer. The sealing device has a simple structure, is convenient for realizing the sealing of the sleeve and the oil pipe and keeping the sealing performance by enabling the sealing element to deform through abutting adjustment, and has obvious high-pressure resistance and corrosion prevention effects and strong practicability.
Description
Technical Field
The invention relates to the technical field of oil well mouth devices, in particular to a high-pressure anti-corrosion integral well mouth device.
Background
The petroleum exploitation refers to the action of excavating and extracting petroleum in places where the petroleum is stored, and in the process of petroleum exploitation, oil and gas flow into a well bottom from a reservoir bed and rise to a well head from the well bottom in a driving mode; the wellhead device is made of pipe head and blowout preventer group, and can be used for controlling pressure and direction of gas and liquid fluid, including oil production tree and gas production tree, and device for mounting on wellhead, hanging casing pipe and oil pipe, and sealing annular space between oil pipe and casing pipe and every layer of casing pipe.
The existing wellhead device is not provided with a pipe column and is directly sealed by a sealing gasket, the wellhead device has the problems of weak joint at the sealing position, low overall strength, erosion, leakage and the like.
Disclosure of Invention
The invention aims to provide a high-pressure anti-corrosion integral wellhead device to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-pressure anti-corrosion integral wellhead device comprises an oil pipe body, a casing head, a plurality of side oil and gas pipe assemblies and a suspension assembly, wherein the casing head is arranged at one end part of the oil pipe body and is fastened and connected through a stud bolt; the suspension assembly is arranged at one end of the oil pipe body, which is far away from the casing head, and is used for mounting the sucker rod in a suspension manner through a step, sealing ring grooves surrounding the centers of the oil pipe body and the casing head are formed at the opposite end parts of the oil pipe body and the casing head, the two sealing ring grooves are correspondingly arranged and form a containing ring cavity, a rubber sealing ring gasket is arranged in the containing ring cavity, notches are formed at the edge parts of the two sealing ring grooves, a convex ring part arranged in the notches is arranged at the side part of the rubber sealing ring gasket, and a protective layer is arranged at the end part of the convex ring part; the oil pipe body is provided with a plurality of through holes communicated with the notches, the jacking assembly is inserted into the through holes in a sliding manner, and one end of the jacking assembly abuts against the protective layer; the driving assembly is arranged on the oil pipe body and is used for driving the plurality of jacking assemblies to move in the through hole at the same time so as to be propped against the protective layer.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the jacking component comprises a connecting seat, a jacking rod and a push-pull movable connecting rod, the jacking rod is inserted into the through hole, the end of the jacking rod is abutted against the protective layer, the jacking rod is arranged at one end of the connecting seat, one end of the push-pull movable connecting rod is movably connected with the connecting seat, and the other end of the push-pull movable connecting rod is connected with the driving component.
In one alternative: the driving assembly comprises a fixing ring, a rotating ring fastening threaded sleeve and a plurality of fastening threaded sleeves, the fixing ring sleeve is fixed on the outer wall of the oil pipe body, the rotating ring fastening threaded sleeve is rotatably sleeved on the fixing ring, the bottom wall of the rotating ring fastening threaded sleeve is movably connected with the end part of the push-pull movable connecting rod, the plurality of fastening threaded sleeves are annularly arranged on the outer wall of the rotating ring fastening threaded sleeve and are in spiral fit connection with the rotating ring fastening threaded sleeve, an annular groove is formed between the fixing ring and the rotating ring fastening threaded sleeve, and a plurality of studs which correspond to the fastening threaded sleeves in a one-to-one matching mode are arranged in the annular groove.
In one alternative: the inner walls of the oil pipe body and the side oil and gas pipe assembly are provided with impact-resistant layers, and the impact-resistant layers are installed at corresponding positions in a welding mode.
In one alternative: the side oil-gas pipe assembly comprises a side oil pipe, a connecting flange and a valve body, wherein the side oil pipe is obliquely arranged on the side wall of the oil pipe body, and an outer port of the side oil pipe is obliquely upward; the connecting flange is arranged at the outer port of the side oil pipe and is used for being connected with external oil-gas equipment; the valve body is arranged on the side wall of the side oil pipe and connected with the side oil pipe into a whole.
In one alternative: the side oil gas pipe assembly further comprises a pressure gauge which is arranged on the outer wall of the side oil pipe and used for measuring the oil gas pressure in the inflow side oil pipe.
In one alternative: the suspension assembly comprises a suspension body, a conical sleeve and a sealing ring, the suspension body is arranged at the top of the oil pipe body and fastened with the oil pipe body, the conical sleeve is arranged at the end face of the suspension body and is inserted into the oil pipe body through the top end opening of the oil pipe body, and the sealing ring is arranged on the outer wall of the conical sleeve in a surrounding mode and is matched and sealed with the inclined plane of a copper drum on the inner wall of the oil pipe body.
Compared with the prior art, the invention has the following beneficial effects:
the rubber seal ring gasket is arranged in the containing ring cavity formed by the two seal ring grooves in the device, extrusion force is generated between the oil pipe body and the casing head due to fastening, the rubber seal ring gasket is subjected to the extrusion force and is deformed in a telescopic mode, the convex ring part of the rubber seal ring gasket can move and expand at the notch, the rubber seal ring gasket is in surface-to-surface contact with the seal ring grooves in an extrusion mode, the arrangement of the convex ring part effectively improves the sealing performance between the oil pipe body and the casing head, meanwhile, the rubber seal ring gasket fails due to high-pressure impact, the plurality of jacking assemblies are driven to move in the through holes through the driving assembly and abut against the rubber seal ring gasket inwards, the rubber seal ring gasket is abutted against the inner wall of the seal ring groove, the sealing performance of the rubber seal ring gasket is kept, the corrosion of corrosive fluids such as acidic air flow and the like to the rubber seal ring gasket can be effectively reduced due to the arrangement of the protective layer, and the corrosion prevention effect is improved. The sealing device has a simple structure, is convenient for realizing the sealing of the sleeve and the oil pipe and keeping the sealing performance by enabling the sealing element to deform through abutting adjustment, and has obvious high-pressure resistance and corrosion prevention effects and strong practicability.
Drawings
Fig. 1 is a schematic view of the overall structure of the device in one embodiment of the present invention.
Fig. 2 is a partially enlarged structural view of a portion a in fig. 1 according to the present invention.
Fig. 3 is a schematic structural diagram of a driving assembly and a jacking assembly in one embodiment of the invention.
Fig. 4 is a schematic structural view of a fixing ring according to an embodiment of the invention.
Notations for reference numerals: the oil pipe comprises an oil pipe body 1, a casing head 2, a stud bolt 3, a side oil gas pipe assembly 4, a side oil pipe 41, a connecting flange 42, a valve body 43, a pressure gauge 44, a suspension assembly 5, a suspension body 51, a conical sleeve 52, a sealing ring 53, an impact-resistant layer 6, a driving assembly 7, a fixing ring 71, a rotating ring 72, a fastening screw sleeve 73, a stud 74, a jacking assembly 8, a connecting seat 81, a jacking rod 82, a push-pull movable connecting rod 83, a rubber sealing ring gasket 9, a sealing ring groove 10, a notch 11, a protective layer 12 and a through hole 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made without departing from the spirit or scope of the present invention.
In one embodiment, as shown in fig. 1 and 2, a high-pressure anti-corrosion integrated wellhead device comprises an oil pipe body 1, a casing head 2, a plurality of side oil and gas pipe assemblies 4 and a suspension assembly 5, wherein the casing head 2 is arranged at one end of the oil pipe body 1 and is fixedly connected with the oil pipe body through a stud bolt 3, and the side oil and gas pipe assemblies 4 are arranged on the side wall of the oil pipe body 1 and are used for guiding oil and gas; the suspension assembly 5 is arranged at one end, far away from the casing head 2, of the oil pipe body 1 and is used for mounting the sucker rod in a suspended mode through steps, sealing ring grooves 10 surrounding the centers of the oil pipe body 1 and the casing head 2 are formed in the opposite end portions of the oil pipe body 1 and the casing head 2, the two sealing ring grooves 10 are correspondingly arranged to form a containing ring cavity, a rubber sealing ring pad 9 is arranged in the containing ring cavity, notches 11 are formed in the edge portions of the two sealing ring grooves 10, a convex ring portion arranged in the notches 11 is arranged on the side portion of the rubber sealing ring pad 9, and a protective layer 12 is arranged at the end portion of the convex ring portion; the oil pipe body 1 is provided with a plurality of through holes 13 communicated with the gaps 11, the jacking assembly 8 is inserted into the through holes 13 in a sliding manner, and one end of the jacking assembly is abutted against the protective layer 12; the driving component 7 is arranged on the oil pipe body 1 and is used for simultaneously driving the plurality of jacking components 8 to move in the through holes 13 and abut against the protective layer 12;
in the implementation process of the embodiment, when the oil pipe body 1 and the casing head 2 are fastened and connected, the rubber seal ring gasket 9 is placed in a containing ring cavity formed by the two seal ring grooves 10, the oil pipe body 1 and the casing head 2 have extrusion force due to fastening, the rubber seal ring gasket 9 is subjected to the extrusion force and is deformed in a telescopic manner, and the convex ring part of the rubber seal ring gasket can move and expand at the notch 11, so that the rubber seal ring gasket 9 is in surface-surface contact with the seal ring grooves 10 in an extrusion manner, and the arrangement of the convex ring part effectively improves the sealing performance between the oil pipe body 1 and the casing head 2, meanwhile, the rubber seal ring gasket 9 fails due to some high-pressure impact, the driving assembly 7 drives the plurality of abutting assemblies 8 to move in the through holes 13 and abut against the rubber seal ring gasket 9 inwards, so that the rubber seal ring gasket 9 abuts against the inner wall of the seal ring grooves 10 tightly, the sealing performance is maintained, and the corrosion of corrosive fluid such as acidic gas flow to the rubber seal ring gasket 9 can be effectively reduced due to the arrangement of the protective layer 12, and the corrosion prevention effect is improved; as an embodiment, the left, right, up and down positions of the components shown in the drawings are only one arrangement, and the specific positions are set according to specific requirements;
in one embodiment, as shown in fig. 1 to 3, the tightening assembly 8 includes a connecting seat 81, a tightening rod 82 and a push-pull movable connecting rod 83, the tightening rod 82 is inserted into the through hole 13 and the end portion abuts against the protective layer 12, the tightening rod 82 is disposed at one end of the connecting seat 81, one end of the push-pull movable connecting rod 83 is movably connected with the connecting seat 81 and the other end is connected with the driving assembly 7; the jacking rod 82 moves in the through hole 13 by the driving of the driving assembly 7 and the pushing and pulling of the pushing and pulling movable connecting rod 83;
in one embodiment, as shown in fig. 2 to 4, the driving assembly 7 includes a fixing ring 71, a rotating ring fastening screw 73 and a plurality of fastening screws 73, the fixing ring 71 is fixed on the outer wall of the oil pipe body 1 in a ring-shaped manner, the rotating ring fastening screw 73 is rotatably sleeved on the fixing ring 71, the bottom wall of the rotating ring fastening screw 73 is movably connected with the end of the push-pull movable connecting rod 83, the plurality of fastening screws 73 are arranged on the outer wall of the rotating ring fastening screw 73 in a ring-shaped manner and are in screw fit connection with the rotating ring fastening screw 73, a ring groove is formed between the fixing ring 71 and the rotating ring fastening screw 73, and a plurality of studs 74 corresponding to the fastening screws 73 in a one-to-one correspondence manner are arranged in the ring groove; due to the rotational fitting of the fixed ring 71 and the rotating ring tightening screw 73, the tightening screw 73 is tilted and pushes and pulls the knock-out rod 82 by rotating the rotating ring tightening screw 73; after the rotating ring fastening screw sleeve 73 rotates for a certain angle; the fastening screw sleeve 73 is rotated to a position corresponding to the other stud 74, the fastening screw sleeve 73 is screwed and fastened with the stud 74 by screwing, the fixed ring 71 and the rotating ring fastening screw sleeve 73 are limited to rotate relatively, and therefore the movement of the tightening rod 82 is limited, and the tightening rod 82 is enabled to abut against the protective layer 12;
the driving assembly 7 may be a combination of a rotating ring fastening screw 73 and a guide screw, in addition to the structure disclosed in the above embodiment, the guide screw drives the rotating ring fastening screw 73 to move along the axial direction of the oil pipe body 1, and the pushing rod 82 can be moved by pushing and pulling the movable connecting rod 83.
In one embodiment, as shown in fig. 1, the inner walls of the oil pipe body 1 and the side oil and gas pipe assembly 4 are provided with impact-resistant layers 6, and the impact-resistant layers 6 are installed at corresponding positions in a welding manner; the arrangement of the impact-resistant layer 6 can effectively increase the capacity of bearing high-pressure impact in the oil pipe body 1 and the side oil-gas pipe assembly 4;
in one embodiment, as shown in fig. 1, the side oil and gas pipe assembly 4 comprises a side oil pipe 41, a connecting flange 42 and a valve body 43, wherein the side oil pipe 41 is obliquely arranged on the side wall of the oil pipe body 1, and the outer port of the side oil pipe 41 is obliquely upward; the connecting flange 42 is arranged at the outer port of the side oil pipe 41 and is used for connecting with external oil and gas equipment; the valve body 43 is arranged on the side wall of the side oil pipe 41 and is connected with the side oil pipe into a whole; the integral structure arrangement of the valve body 43 and the side oil pipe 41 can increase high-pressure impact force;
in one embodiment, as shown in fig. 1, the lateral tubing assembly 4 further comprises a pressure gauge 44, the pressure gauge 44 being provided on the outer wall of the lateral tubing 41 and used for measuring the pressure of the oil gas flowing into the lateral tubing 41;
in one embodiment, as shown in fig. 1, the suspension assembly 5 comprises a suspension body 51, a conical sleeve 52 and a sealing ring 53, wherein the suspension body 51 is arranged at the top of the oil pipe body 1 and is fastened with the same, the conical sleeve 52 is arranged at the end face of the suspension body 51 and is inserted into the oil pipe body 1 from the top end port of the oil pipe body 1, and the sealing ring 53 is arranged around the outer wall of the conical sleeve 52 and is in fit sealing with the inclined surface of a bronze drum on the inner wall of the oil pipe body 1; the sealing ring 53 is extruded through the fastening connection of the suspension body 51 and the end part of the oil pipe body 1, and the sealing ring 53 is extruded to be propped against and sealed with the inner inclined plane of the oil pipe body 1, so that the sealing effect is improved;
besides the structure disclosed in the above embodiment, the suspension assembly 5 may also be a suspension body 51 with a downward semi-spherical convex middle part; the semicircular bulge of the oil pipe body is matched and sealed with the cambered surface of the port of the oil pipe body 1;
the embodiment discloses an integral wellhead assembly of high pressure anticorrosion, wherein, when oil pipe body 1 and casing head 2 are connected tightly, rubber seal ring pad 9 is arranged in the holding ring cavity that two seal ring grooves 10 formed, there is the extrusion force because of the fastening between oil pipe body 1 and casing head 2, rubber seal ring pad 9 receives the extrusion force and the flexible deformation, its bulge loop can move and expand in breach 11 department, thereby rubber seal ring pad 9 and seal ring groove 10 extrusion face-to-face contact and bulge loop's being provided with and effectively increasing the leakproofness between oil pipe body 1 and casing head 2, and simultaneously, at rubber seal ring pad 9 inefficacy because of some high-pressure impact, it is inside to support tight rubber seal ring pad 9 to move in through-hole 13 and to make rubber seal ring pad 9 and seal ring groove 10 inner wall support tight contact, keep its leakproofness, and because the setting of inoxidizing coating 12 can effectively reduce the corruption to rubber seal ring pad 9 of corrosive fluids such as acid gas stream, improve anticorrosive effect.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (4)
1. A high-pressure anti-corrosion integral wellhead device comprises an oil pipe body, a casing head, a plurality of side oil and gas pipe assemblies and a suspension assembly, wherein the casing head is arranged at one end part of the oil pipe body and is fastened and connected through a stud bolt; the oil pumping device is characterized in that the suspension assembly is arranged at one end of the oil pipe body, which is far away from the casing head, and is used for suspending and mounting the oil pumping rod through a step;
the opposite end parts of the oil pipe body and the casing head are respectively provided with a sealing ring groove surrounding the center of the oil pipe body and the casing head, the two sealing ring grooves are correspondingly arranged to form an accommodating ring cavity, and a rubber sealing ring gasket is arranged in the accommodating ring cavity;
the edge parts of the two sealing ring grooves are provided with notches, the side parts of the rubber sealing ring gaskets are provided with convex ring parts arranged in the notches, and the end parts of the convex ring parts are provided with protective layers;
the oil pipe body is provided with a plurality of through holes communicated with the gap;
the jacking component is inserted into the through hole in a sliding manner, and one end of the jacking component is abutted against the protective layer;
the driving assembly is arranged on the oil pipe body and is used for driving the plurality of jacking assemblies to move in the through holes at the same time so as to be propped against the protective layer;
the jacking component comprises a connecting seat, a jacking rod and a push-pull movable connecting rod, the jacking rod is inserted into the through hole, the end part of the jacking rod is abutted against the protective layer, the jacking rod is arranged at one end of the connecting seat, one end of the push-pull movable connecting rod is movably connected with the connecting seat, and the other end of the push-pull movable connecting rod is connected with the driving component;
the driving assembly comprises a fixing ring, a rotating ring fastening threaded sleeve and a plurality of fastening threaded sleeves, the fixing ring is sleeved on the outer wall of the oil pipe body, the rotating ring fastening threaded sleeve is rotatably sleeved on the fixing ring, the bottom wall of the rotating ring fastening threaded sleeve is movably connected with the end part of the push-pull movable connecting rod, the plurality of fastening threaded sleeves are distributed on the outer wall of the rotating ring fastening threaded sleeve and are in spiral fit connection with the rotating ring fastening threaded sleeve, an annular groove is formed between the fixing ring and the rotating ring fastening threaded sleeve, and a plurality of threaded studs which correspond to the fastening threaded sleeves in a one-to-one corresponding fit manner are arranged in the annular groove;
the suspension assembly comprises a suspension body, a conical sleeve and a sealing ring, the suspension body is arranged at the top of the oil pipe body and fastened with the oil pipe body, the conical sleeve is arranged at the end face of the suspension body and is inserted into the oil pipe body through the top end opening of the oil pipe body, and the sealing ring is arranged on the outer wall of the conical sleeve in a surrounding mode and is matched and sealed with the inclined plane of a copper drum on the inner wall of the oil pipe body.
2. The high-pressure anti-corrosion integral wellhead device according to claim 1, wherein the inner walls of the oil pipe body and the side oil and gas pipe assembly are provided with impact-resistant layers, and the impact-resistant layers are installed at corresponding positions in a welding mode.
3. The high-pressure anti-corrosion integrated wellhead device according to claim 1 or 2, characterized in that the side oil-gas pipe assembly comprises a side oil pipe, a connecting flange and a valve body, wherein the side oil pipe is obliquely arranged on the side wall of the oil pipe body, and the outer port of the side oil pipe is obliquely upward; the connecting flange is arranged at the outer port of the side oil pipe and is used for being connected with external oil and gas equipment; the valve body is arranged on the side wall of the side oil pipe and is connected with the side oil pipe into a whole.
4. The high pressure corrosion protected integral wellhead assembly according to claim 3 wherein the lateral tubing assembly further includes a pressure gauge provided on an outer wall of the lateral tubing for measuring the pressure of oil gas flowing into the lateral tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111001394.9A CN113622857B (en) | 2021-08-30 | 2021-08-30 | High-pressure anti-corrosion integral wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111001394.9A CN113622857B (en) | 2021-08-30 | 2021-08-30 | High-pressure anti-corrosion integral wellhead device |
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| Publication Number | Publication Date |
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| CN113622857A CN113622857A (en) | 2021-11-09 |
| CN113622857B true CN113622857B (en) | 2022-10-21 |
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| CN202111001394.9A Active CN113622857B (en) | 2021-08-30 | 2021-08-30 | High-pressure anti-corrosion integral wellhead device |
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| CN208749323U (en) * | 2018-08-27 | 2019-04-16 | 中国石油化工股份有限公司勘探分公司 | A kind of super-pressure anti-pricked anti-corrosion Integral type well-mouth device |
| CN210068049U (en) * | 2019-06-02 | 2020-02-14 | 东营市金亿来石油机械有限公司 | Oil extraction well head with good sealing effect |
| CN210714594U (en) * | 2019-10-18 | 2020-06-09 | 江苏益马机械有限公司 | Oil production wellhead assembly with spring safety valve |
| CN211058756U (en) * | 2019-11-22 | 2020-07-21 | 中国石油天然气集团有限公司 | Fire flooding oil production wellhead device |
| CN212887166U (en) * | 2020-06-23 | 2021-04-06 | 北京大汉正源科技有限公司 | Laser radar processingequipment |
| CN113006731A (en) * | 2021-04-23 | 2021-06-22 | 京鸿石油钻采工程技术有限公司 | Self-locking casing head |
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| CN113622857A (en) | 2021-11-09 |
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