CN117166954A - Antitheft oil extraction wellhead device - Google Patents
Antitheft oil extraction wellhead device Download PDFInfo
- Publication number
- CN117166954A CN117166954A CN202311187639.0A CN202311187639A CN117166954A CN 117166954 A CN117166954 A CN 117166954A CN 202311187639 A CN202311187639 A CN 202311187639A CN 117166954 A CN117166954 A CN 117166954A
- Authority
- CN
- China
- Prior art keywords
- dovetail groove
- guide rail
- oil extraction
- theft cap
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 33
- 238000010008 shearing Methods 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 238000010248 power generation Methods 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
An antitheft oil extraction wellhead device relates to the technical field of oil extraction. The base is welded on the wellhead flange, the anti-theft cap is arranged on the upper portion of the base, the anti-theft cap is respectively provided with a section of dovetail groove guide rail on the front side and the rear side of the oil extraction wellhead, the base is respectively provided with a section of dovetail groove sliding block on the front side and the rear side of the oil extraction wellhead, and the dovetail groove sliding blocks are connected with the dovetail groove guide rail in a sliding fit manner. The beneficial effects of the invention are as follows: when the anti-theft cap is opened, the engineering machinery is used for pushing the anti-theft cap backwards, the shearing pin shaft is sheared, then the anti-theft cap is pushed forwards until the dovetail groove sliding block and the dovetail groove guide rail are separated, the anti-theft cap can be opened for normal operation, even if a large-scale machine is adopted by an illegal person, the anti-theft cap cannot be opened by pushing the anti-theft cap forwards or backwards, the anti-theft performance of the oil extraction wellhead is further improved, the control box can monitor the pressure of an oil pipe and a sleeve in the oil extraction wellhead in real time, and an alarm signal is timely sent when the illegal person tries to open the anti-theft cap by various means.
Description
Technical Field
The invention relates to the technical field of oil extraction, in particular to an antitheft oil extraction wellhead device.
Background
Along with the later period of crude oil production, the water content of produced liquid is higher and higher, a certain number of oil wells are abandoned or stored each year, and because a plurality of oil wells are distributed and dispersed and are located in remote areas and are easy to steal, a wellhead with good anti-theft effect is needed, and a mode of additionally installing an anti-theft box or an anti-theft lock is generally adopted in the industry, but the anti-theft mode cannot well prevent the theft, and the anti-theft box or the anti-theft lock is usually disabled by violent disassembly, so that the anti-theft effect is poor.
Disclosure of Invention
The invention provides an anti-theft oil extraction wellhead device, which aims to solve the problem of low anti-theft performance of the existing waste gas or sealed oil extraction wellhead.
The technical scheme provided by the invention is as follows: the anti-theft oil extraction wellhead device comprises an oil extraction wellhead, wherein the oil extraction wellhead consists of a large four-way joint, a double-wing annular pipeline, a small four-way joint, a double-wing production pipeline and a blowout preventer, a wellhead flange at the lower part of the large four-way joint is hermetically connected with a sleeve flange, a base is welded on the wellhead flange, an anti-theft cap is arranged at the upper part of the base, the anti-theft cap and the base are all shells formed by welding steel plates, the anti-theft cap and the base are combined together to form a closed space, the anti-theft cap and the base are covered outside the oil extraction wellhead, the anti-theft cap respectively processes a section of dovetail groove guide rail at the front side and the rear side of the oil extraction wellhead, and the base respectively processes a section of dovetail groove slide block at the front side and the rear side of the oil extraction wellhead, and the dovetail groove slide block and the dovetail groove guide rail are in sliding fit connection;
a through hole is formed in the dovetail groove guide rail at the front end, a counter bore is formed in the dovetail groove sliding block at the corresponding position of the through hole, and a shearing pin shaft is inserted into the through hole and the counter bore;
the anti-theft cap is internally provided with a section of empty groove at the rear end face, the empty groove is arranged at the position of a dovetail groove guide rail, the base is provided with a baffle at the rear end face, the baffle is blocked outside the dovetail groove sliding block, the size of the baffle is larger than the section size of the dovetail groove sliding block, the baffle is in clearance fit connection with the empty groove, and the depth of the empty groove is larger than the thickness of the baffle;
the dovetail groove guide rail is provided with a groove A at the front end of the shearing pin shaft, a shearing blade A is connected in the groove A through a bolt, the dovetail groove slide block is provided with a groove B at the rear end of the shearing pin shaft, and a shearing blade B is connected in the groove B through a bolt.
One side of the production pipeline of the double wings is connected with the plug A in a sealing way, the other side of the production pipeline of the double wings is connected with the pressure sensor B in a sealing way, one side of the annular pipeline of the double wings is connected with the plug B in a sealing way, the other side of the annular pipeline of the double wings is connected with the pressure sensor A in a sealing way, a control box is arranged on the base, a battery, a PLC (programmable logic controller) and an RTU (real time unit) are arranged in the control box, the top of the anti-theft cap is covered with a solar power generation plate, the solar power generation plate is provided with a wire connection control box, and the pressure sensor A and the pressure sensor B are both provided with a wire connection control box.
The base is provided with a travel switch, a contact of the travel switch is positioned at the rear end face of the dovetail groove guide rail at the front end, the distance between the contact of the travel switch and the rear end face of the dovetail groove guide rail is smaller than the diameter of the shearing pin shaft, the inner wall of the anti-theft cap is provided with a temperature sensor, and the temperature sensor and the travel switch are both connected with a control box through wires.
The dovetail groove guide rail is fixedly connected with a positioning sleeve at the upper part of the shearing pin shaft, an inner hole of the positioning sleeve is in threaded connection with a lead screw, a compression spring is arranged between the lead screw and the shearing pin shaft, the diameter of the lead screw is larger than that of the shearing pin shaft, and when the dovetail groove guide rail is installed, soluble metal is filled in the counter bore.
The beneficial effects of the invention are as follows: when the anti-theft cap is opened, the engineering machinery is used for pushing the anti-theft cap backwards, the shearing pin shaft is sheared under the action of the shearing blade A and the shearing blade B, the anti-theft cap moves backwards to the baffle to stop, then the anti-theft cap is pushed forwards until the dovetail groove sliding block and the dovetail groove guide rail are separated, the anti-theft cap can be opened for normal operation, lawless persons cannot use large machinery for theft-recovery of crude oil generally, even if the large machinery is adopted, the anti-theft cap cannot be pushed forwards or pushed backwards, the anti-theft performance of the oil extraction wellhead is further improved, the control box can monitor the pressure of an oil pipe and a sleeve in the oil extraction wellhead in real time, and an alarm signal is sent timely when the lawless persons attempt to open the anti-theft cap by various means.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is a schematic view of the structure of the anti-theft cap of the present invention;
fig. 5 is an enlarged view of the base of the present invention.
In the figure: the device comprises a large four-way joint, a 2-sleeve flange, a 3-anti-theft cap, a 4-base, a 5-wellhead flange, a 6-double-wing production pipeline, a 7-plug A, a 8-small four-way joint, a 9-blowout preventer, a 10-pressure sensor A, a 11-control box, a 12-solar panel, a 13-pressure sensor B, a 14-plug B, a 15-dovetail groove slider, a 16-dovetail groove guide rail, a 17-baffle, a 18-empty groove, a 19-shearing pin shaft, a 20-positioning sleeve, a 21-lead screw, a 22-shearing blade A, a 23-shearing blade B, a 24-through hole, a 25-groove A, a 26-counter bore, a 27-groove B, a 28-temperature sensor, a 29-double-wing annular pipeline and a 30-travel switch.
Description of the embodiments
As shown in fig. 1-5, an anti-theft oil extraction wellhead device comprises an oil extraction wellhead, wherein the oil extraction wellhead consists of a large four-way joint 1, a double-wing annular pipeline 29, a small four-way joint 8, a double-wing production pipeline 6 and a blowout preventer 9, a wellhead flange 5 at the lower part of the large four-way joint 1 is in sealing connection with a sleeve flange 2, a base 4 is welded on the wellhead flange 5, an anti-theft cap 3 is arranged at the upper part of the base 4, the anti-theft cap 3 and the base 4 are all shells formed by welding steel plates, the anti-theft cap 3 and the base 4 are combined together to form a closed space, the anti-theft cap 3 and the base 4 are covered outside the oil extraction wellhead, a section of dovetail groove guide rail 16 is respectively processed at the front side and the rear side of the oil extraction wellhead, a section of dovetail groove slide block 15 is respectively processed at the front side and the rear side of the base 4, and the dovetail groove slide block 15 and the dovetail groove guide rail 16 are in sliding fit connection;
a through hole 24 is formed in the dovetail groove guide rail 16 at the front end, a counter bore 26 is formed in the dovetail groove slide block 15 at the corresponding position of the through hole 24, and a shearing pin shaft 19 is inserted into the through hole 24 and the counter bore 26;
the anti-theft cap 3 is internally provided with a section of empty groove 18 at the rear end surface, the empty groove 18 is arranged at the position of the dovetail groove guide rail 16, the base 4 is provided with a baffle 17 at the rear end surface, the baffle 17 is blocked outside the dovetail groove sliding block 15, the size of the baffle 17 is larger than the section size of the dovetail groove sliding block 15, the baffle 17 is connected with the empty groove 18 in a clearance fit way, and the depth of the empty groove 18 is larger than the thickness of the baffle 17;
the dovetail groove guide rail 16 is provided with a groove A25 at the front end of the shearing pin 19, a shearing blade A22 is connected in the groove A25 through a bolt, a groove B27 is provided at the rear end of the shearing pin 19 by the dovetail groove slide block 15, a shearing blade B23 is connected in the groove B27 through a bolt, so that the shearing pin 19 forms a unidirectional opening mode, the shearing pin 19 can be sheared by pushing the anti-theft cap 3 backwards, and the shearing pin 19 cannot be sheared by pushing the anti-theft cap 3 forwards.
When the anti-theft cap 3 is opened, the engineering machinery is used for pushing the anti-theft cap 3 backwards, the shearing pin shaft 19 is sheared under the action of the shearing blade A22 and the shearing blade B23, the anti-theft cap 3 is moved backwards to the baffle 17 to stop, then the anti-theft cap 3 is pushed forwards until the dovetail groove sliding block 15 and the dovetail groove guide rail 16 are separated, the anti-theft cap 3 can be opened for normal operation, lawless persons generally dare to use large machinery for theft-extraction of crude oil, and even if the large machinery is adopted, the anti-theft cap 3 cannot be opened by pushing the anti-theft cap 3 forwards or pushing the anti-theft cap backwards, so that the anti-theft performance of an oil extraction wellhead is further improved.
One side of the double-wing production pipeline 6 is in sealing connection with a screwed plug A7, the other side is in sealing connection with a pressure sensor B13, one side of the double-wing annular pipeline 29 is in sealing connection with a screwed plug B14, the other side is in sealing connection with a pressure sensor A10, a control box 11 is installed on the base 4, a battery, a PLC and an RTU are installed in the control box 11, the top of the anti-theft cap 3 is covered with a solar power generation plate 12, the solar power generation plate 12 is provided with a wire connected control box 11, and the pressure sensor A10 and the pressure sensor B13 are both provided with the wire connected control box 11.
The base 4 is provided with a travel switch 30, the contact of the travel switch 30 is positioned at the rear end face of the dovetail groove guide rail 16 at the front end, the distance between the contact of the travel switch 30 and the rear end face of the dovetail groove guide rail 16 is smaller than the diameter of the shearing pin shaft 19, the inner wall of the anti-theft cap 3 is provided with a temperature sensor 28, and the temperature sensor 28 and the travel switch 30 are both provided with a wire connection control box 11.
When an lawbreaker forcibly disassembles the anti-theft cap 3, the shear pin shaft 19 breaks, the travel switch 30 acts, the RTU in the control box 11 can send an alarm signal before the anti-theft cap 3 is not opened, the temperature sensor 28 can detect the surface temperature of the anti-theft cap 3, and when the lawbreaker adopts oxygen acetylene to cut and destroy the anti-theft cap 3, the temperature of the anti-theft cap 3 is abnormal, and the RTU sends a signal to alarm in time.
The control box 11 can monitor the pressure of oil pipe and sleeve pipe in the oil recovery well head in real time, and solar panel 12 gives the battery power supply, and PLC can gather the electric quantity data of battery simultaneously, and when rainy season, the electric quantity of battery sends early warning when low, and the suggestion relevant personnel charges, in time sends alarm signal when lawless persons attempt to open theftproof cap 3 with various means.
The dovetail groove guide rail 16 is fixedly connected with a positioning sleeve 20 at the upper part of a shear pin shaft 19, an inner hole of the positioning sleeve 20 is in threaded connection with a lead screw 21, a compression spring is arranged between the lead screw 21 and the shear pin shaft 19, the diameter of the lead screw 21 is larger than that of the shear pin shaft 19, the shear pin shaft 19 is installed into a through hole 24 from the upper part of the positioning sleeve 20, when the shear pin shaft is installed, soluble metal is filled in a counter bore 26, after the shear pin shaft is installed, the soluble metal is melted, the shear pin shaft 19 is inserted into the counter bore 26 under the action of the compression spring, and the anti-theft cap 3 is fixed.
Claims (4)
1. An antitheft oil extraction wellhead device, includes oil extraction wellhead, its characterized in that: the oil extraction wellhead consists of a large four-way joint (1), a double-wing annular pipeline (29), a small four-way joint (8), a double-wing production pipeline (6) and a blowout preventer (9), wherein a wellhead flange (5) at the lower part of the large four-way joint (1) is connected with a sleeve flange (2) in a sealing mode, a base (4) is welded on the wellhead flange (5), an anti-theft cap (3) is installed at the upper part of the base (4), the anti-theft cap (3) and the base (4) are all shells formed by welding steel plates, the anti-theft cap (3) and the base (4) are combined to form a closed space, the anti-theft cap (3) and the base (4) are covered outside the oil extraction wellhead, a section of dovetail groove guide rail (16) is respectively processed at the front side and the rear side of the oil extraction wellhead, a section of dovetail groove slide block (15) is respectively processed at the front side and the rear side of the base (4) of the oil extraction wellhead, and the dovetail groove slide block (15) and the dovetail groove guide rail (16) are connected in a sliding fit mode.
A through hole (24) is formed in the dovetail groove guide rail (16) at the front end, a counter bore (26) is formed in the dovetail groove sliding block (15) at the corresponding position of the through hole (24), and a shearing pin shaft (19) is inserted into the through hole (24) and the counter bore (26);
the anti-theft cap (3) is internally provided with a section of empty groove (18) at the rear end face, the empty groove (18) is arranged at the position of a dovetail groove guide rail (16), the base (4) is provided with a baffle plate (17) at the rear end face, the baffle plate (17) is blocked outside a dovetail groove sliding block (15), the size of the baffle plate (17) is larger than the cross section size of the dovetail groove sliding block (15), the baffle plate (17) is connected with the empty groove (18) in a clearance fit way, and the depth of the empty groove (18) is larger than the thickness of the baffle plate (17);
the dovetail groove guide rail (16) is provided with a groove A (25) at the front end of the shearing pin shaft (19), a shearing blade A (22) is connected in the groove A (25) through a bolt, the dovetail groove slide block (15) is provided with a groove B (27) at the rear end of the shearing pin shaft (19), and a shearing blade B (23) is connected in the groove B (27) through a bolt.
2. An antitheft oil recovery wellhead assembly according to claim 1, characterized in that: a production pipeline (6) one side sealing connection plug A (7) of two wings, opposite side sealing connection pressure sensor B (13), two wing annular space pipeline (29) one side sealing connection plug B (14), opposite side sealing connection pressure sensor A (10), install control box (11) on base (4), install battery, PLC and RTU in control box (11), theftproof cap (3) top cover has solar panel (12), solar panel (12) have wire connection control box (11), pressure sensor A (10) and pressure sensor B (13) all have wire connection control box (11).
3. An antitheft oil recovery wellhead assembly according to claim 1, characterized in that: a travel switch (30) is arranged on the base (4), a contact of the travel switch (30) is located at the rear end face of the dovetail groove guide rail (16) at the front end, the distance between the contact of the travel switch (30) and the rear end face of the dovetail groove guide rail (16) is smaller than the diameter of the shearing pin shaft (19), a temperature sensor (28) is arranged on the inner wall of the anti-theft cap (3), and the temperature sensor (28) and the travel switch (30) are both connected with a control box (11) through wires.
4. An antitheft oil recovery wellhead assembly according to claim 1, characterized in that: the dovetail groove guide rail (16) is fixedly connected with a locating sleeve (20) at the upper part of the shearing pin shaft (19), an inner hole of the locating sleeve (20) is connected with a lead screw (21) in a threaded manner, a compression spring is arranged between the lead screw (21) and the shearing pin shaft (19), the diameter of the lead screw (21) is larger than that of the shearing pin shaft (19), and when the dovetail groove guide rail is installed, soluble metal is filled in a counter bore (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311187639.0A CN117166954B (en) | 2023-09-15 | Antitheft oil extraction wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311187639.0A CN117166954B (en) | 2023-09-15 | Antitheft oil extraction wellhead device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117166954A true CN117166954A (en) | 2023-12-05 |
| CN117166954B CN117166954B (en) | 2024-05-14 |
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Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3236655A1 (en) * | 1982-10-04 | 1984-04-05 | Albert 8752 Goldbach Baum | DEVICE FOR SECURING CONSTRUCTION HOMES AGAINST THEIR RISK |
| CN2154345Y (en) * | 1993-03-27 | 1994-01-26 | 瞿海涵 | Anti-theft sluice valve |
| CN2458421Y (en) * | 2000-07-20 | 2001-11-07 | 陈忠明 | Dog type anti-theft well head device |
| CN2633958Y (en) * | 2003-06-19 | 2004-08-18 | 尚有志 | Lockless anti-theft manhole cover |
| CA2547415A1 (en) * | 2006-05-18 | 2007-11-18 | Angelo Risi | Combination of a structural block and a facing element attached thereto |
| CN201180511Y (en) * | 2007-11-30 | 2009-01-14 | 南京伟业机械有限公司 | Gas injection, oil extraction shaft mouth apparatus |
| CN201857921U (en) * | 2010-11-08 | 2011-06-08 | 大庆油田有限责任公司 | Dual-sliding-cover anti-theft wellhead cap of bailing well |
| CN102434122A (en) * | 2011-08-17 | 2012-05-02 | 中国石油天然气股份有限公司 | Anti-theft wellhead assembly |
| CN202866729U (en) * | 2012-10-12 | 2013-04-10 | 郭顺清 | Anti-theft well head device |
| CN103290862A (en) * | 2013-06-07 | 2013-09-11 | 张红彬 | Novel well cover assembly |
| CN106049549A (en) * | 2016-08-01 | 2016-10-26 | 长春师范大学 | Waterlogging falling prevention well head device with functions of overflowing and warning |
| CN106639953A (en) * | 2017-01-13 | 2017-05-10 | 胜利油田石油开发中心胜通有限公司 | Anti-theft device for instrument at petroleum well head and petroleum exploitation pipeline |
| CN206800463U (en) * | 2017-03-17 | 2017-12-26 | 刘继东 | A kind of safe theft-proof well cover |
| CN206830110U (en) * | 2017-04-25 | 2018-01-02 | 中国石油天然气股份有限公司 | Oil well head anti-theft device |
| CN208073399U (en) * | 2018-01-21 | 2018-11-09 | 江苏庆海石油机械有限公司 | A kind of well head surveillance device with anti-theft feature |
| CN109630058A (en) * | 2019-01-29 | 2019-04-16 | 牡丹江天庆石油机械设备有限公司 | A kind of blowout preventer alarm of good airproof performance |
| CN208885229U (en) * | 2018-09-21 | 2019-05-21 | 东营天锦石油科技开发有限公司 | A kind of Anti-theft device for wall head |
| CN210068051U (en) * | 2019-06-02 | 2020-02-14 | 东营市金亿来石油机械有限公司 | Anti-theft gas production wellhead |
| CN210857293U (en) * | 2019-10-22 | 2020-06-26 | 广东乾兴建设工程有限公司 | Municipal administration well lid |
| CN211201845U (en) * | 2019-11-03 | 2020-08-07 | 田文杰 | Well head safety device for oil and gas production |
| CN212337213U (en) * | 2019-12-06 | 2021-01-12 | 祁晨龙 | Oil recovery well head anti-theft device |
| CN212867482U (en) * | 2020-07-21 | 2021-04-02 | 王小玲 | Oil recovery well head anti-theft device |
| CN213016271U (en) * | 2020-09-21 | 2021-04-20 | 薄纯星 | Anti-theft device for oil production well |
| CN213573988U (en) * | 2020-11-04 | 2021-06-29 | 段宝昌 | Dustproof and antitheft wellhead cap for oil field |
| CN114776255A (en) * | 2022-04-26 | 2022-07-22 | 杨浦 | Annular anti-theft valve bank wellhead flow device |
| CN115898313A (en) * | 2022-12-09 | 2023-04-04 | 王玉芳 | Oil field well head protection device |
Patent Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3236655A1 (en) * | 1982-10-04 | 1984-04-05 | Albert 8752 Goldbach Baum | DEVICE FOR SECURING CONSTRUCTION HOMES AGAINST THEIR RISK |
| CN2154345Y (en) * | 1993-03-27 | 1994-01-26 | 瞿海涵 | Anti-theft sluice valve |
| CN2458421Y (en) * | 2000-07-20 | 2001-11-07 | 陈忠明 | Dog type anti-theft well head device |
| CN2633958Y (en) * | 2003-06-19 | 2004-08-18 | 尚有志 | Lockless anti-theft manhole cover |
| CA2547415A1 (en) * | 2006-05-18 | 2007-11-18 | Angelo Risi | Combination of a structural block and a facing element attached thereto |
| CN201180511Y (en) * | 2007-11-30 | 2009-01-14 | 南京伟业机械有限公司 | Gas injection, oil extraction shaft mouth apparatus |
| CN201857921U (en) * | 2010-11-08 | 2011-06-08 | 大庆油田有限责任公司 | Dual-sliding-cover anti-theft wellhead cap of bailing well |
| CN102434122A (en) * | 2011-08-17 | 2012-05-02 | 中国石油天然气股份有限公司 | Anti-theft wellhead assembly |
| CN202866729U (en) * | 2012-10-12 | 2013-04-10 | 郭顺清 | Anti-theft well head device |
| CN103290862A (en) * | 2013-06-07 | 2013-09-11 | 张红彬 | Novel well cover assembly |
| CN106049549A (en) * | 2016-08-01 | 2016-10-26 | 长春师范大学 | Waterlogging falling prevention well head device with functions of overflowing and warning |
| CN106639953A (en) * | 2017-01-13 | 2017-05-10 | 胜利油田石油开发中心胜通有限公司 | Anti-theft device for instrument at petroleum well head and petroleum exploitation pipeline |
| CN206800463U (en) * | 2017-03-17 | 2017-12-26 | 刘继东 | A kind of safe theft-proof well cover |
| CN206830110U (en) * | 2017-04-25 | 2018-01-02 | 中国石油天然气股份有限公司 | Oil well head anti-theft device |
| CN208073399U (en) * | 2018-01-21 | 2018-11-09 | 江苏庆海石油机械有限公司 | A kind of well head surveillance device with anti-theft feature |
| CN208885229U (en) * | 2018-09-21 | 2019-05-21 | 东营天锦石油科技开发有限公司 | A kind of Anti-theft device for wall head |
| CN109630058A (en) * | 2019-01-29 | 2019-04-16 | 牡丹江天庆石油机械设备有限公司 | A kind of blowout preventer alarm of good airproof performance |
| CN210068051U (en) * | 2019-06-02 | 2020-02-14 | 东营市金亿来石油机械有限公司 | Anti-theft gas production wellhead |
| CN210857293U (en) * | 2019-10-22 | 2020-06-26 | 广东乾兴建设工程有限公司 | Municipal administration well lid |
| CN211201845U (en) * | 2019-11-03 | 2020-08-07 | 田文杰 | Well head safety device for oil and gas production |
| CN212337213U (en) * | 2019-12-06 | 2021-01-12 | 祁晨龙 | Oil recovery well head anti-theft device |
| CN212867482U (en) * | 2020-07-21 | 2021-04-02 | 王小玲 | Oil recovery well head anti-theft device |
| CN213016271U (en) * | 2020-09-21 | 2021-04-20 | 薄纯星 | Anti-theft device for oil production well |
| CN213573988U (en) * | 2020-11-04 | 2021-06-29 | 段宝昌 | Dustproof and antitheft wellhead cap for oil field |
| CN114776255A (en) * | 2022-04-26 | 2022-07-22 | 杨浦 | Annular anti-theft valve bank wellhead flow device |
| CN115898313A (en) * | 2022-12-09 | 2023-04-04 | 王玉芳 | Oil field well head protection device |
Non-Patent Citations (3)
| Title |
|---|
| SONG, L等: "Test of anti theft alarm system for oil well", 2017PROCEEDINGS OF THE 2017 7TH INTERNATIONAL CONFERENCE ON ADVANCED DESIGN AND MANUFACTURING ENGINEERING (ICADME 2017), 31 December 2017 (2017-12-31) * |
| 庞承强;: "防盗工艺技术在采油管理中的优化", 山东工业技术, no. 20, 15 October 2015 (2015-10-15) * |
| 梁勋生, 江茹, 岳志建, 峦红: "几种采油井口防盗装置", 机械工程师, no. 06, 25 June 2004 (2004-06-25) * |
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