CN201080804Y - Multifunctional wellhead pressure test packer - Google Patents
Multifunctional wellhead pressure test packer Download PDFInfo
- Publication number
- CN201080804Y CN201080804Y CNU2007200136897U CN200720013689U CN201080804Y CN 201080804 Y CN201080804 Y CN 201080804Y CN U2007200136897 U CNU2007200136897 U CN U2007200136897U CN 200720013689 U CN200720013689 U CN 200720013689U CN 201080804 Y CN201080804 Y CN 201080804Y
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- Prior art keywords
- cone
- centralizing
- clip
- track body
- spring
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- 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.)
- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 241000239290 Araneae Species 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model relates to a multifunctional wellhead pressure-testing packer used to be operated under oil and water well, which is composed of a release joint, a core shaft, a sealing rubber plug, a cone, a clip, a tension spring, a clip seat, a centralizing body, a centralizing block, a spring, a limit sleeve, a post pin sleeve, a post pin, a track body and a nut, wherein the lower end of the release joint is connected with the core shaft by rectangular thread, the outer side of the core shaft is sleeved with the sealing rubber plug, the lower end of the core shaft is connected with the cone, the track body is arranged below the lower part of the cone, the clip and the clip seat are arranged outside the cone, the tension spring is sleeved at middle part of the clip, the centralizing body is arranged below the clip seat, the centralizing block is arranged below the centralizing body, the spring is arranged inside the centralizing body, the lower part of the centralizing body is connected with the limit sleeve, the post pin sleeve and the post pin are arranged inside the limit sleeve, the lower end of the limit sleeve is connected with the track body, the nut is arranged at the lower end of the track body. The packer has the advantages of simple structure, multifunction, and high pressure resistance. The utility model can perform airproof pressure testing of various wellhead devices.
Description
Technical field:
The utility model relates to a kind of wellhead assembly pressure test tool that is used for oil, well underground work.
Background technology:
Oil, well carry out before the underground work construction or during perforating job, for guaranteeing that safety needs carry out pressure testing to well head production tree, blowout preventer, perforation gate.At present, on-the-spot is to adopt an oil pipe to connect leather cup formula pressure testing packer or Y211 packer by the pressure test tool that uses, with partly sealing blowout preventer back the suppressing from sleeve pipe of oil pipe sealing carried out pressure testing, this kind method can only verify that blowout preventer partly seals the sealing of steel ring between flashboard and perforation gate and the well head, do not verify the sealing of blowout preventer blind rams and perforation gate board, thereby can not guarantee safety in production; Another kind of pressure testing packer adopts well head suspension carrying out pressure testing, and this kind packer only is fit to well head production tree, blowout preventer pressure testing, can not carry out pressure testing (perforation gate latus rectum ∮ 149mm) by the correlation gate hole.
The utility model content:
The utility model purpose is to provide a kind of and can partly seals flashboard, blind rams, kill manifold, perforation gate board and all can carry out the multifunctional well head pressure testing packer that sealing detects pressure testing oil, the short cover of well well head, four-way, production tree, blowout preventer.
The utility model is achieved in that
This kind pressure testing packer is made up of back-off sub, axle, sealing plug, cone, slips, extension spring, slip spider, centralizer body, wiper block, spring, stop collar, roller, pin, track body and nut, the back-off sub lower end is connected with axle with rectangular thread, the axle outside is set with the sealing plug, the lower end is connected with cone, and the cone bottom is a track body; The outside, cone bottom is provided with slips and slip spider, is set with extension spring in the cannelure of slips middle part; The slip spider below is provided with centralizer body, and the centralizer body below is provided with wiper block, and the centralizer body inboard is provided with supports the wiper block spring; The centralizer body bottom is with the stop collar that has been threaded, and the stop collar inboard is provided with roller and pin; The stop collar lower end is connected with track body with screw thread, and nut is equipped with in the track body lower end.During use, back-off sub upper end, this packer top will be connected with tubing string, and will be lowered to utilize in the pit shaft with tubing string and raises and decentralizes seat and seal, and then wellhead blowout preventor partly be sealed flashboard and close, utilize the pump truck pressure testing from the well head sleeve gate; Perhaps left-handed oil pipe back-off, back-off sub and axle are thrown off in the rectangular thread buckle, oil pipe and back-off sub are proposed well head, close wellhead blowout preventor blind rams or perforation gate board, utilize pump truck to carry out pressure testing from the well head sleeve gate, the sealing that the short cover of checking well head, four-way, production tree, preventer partly seal flashboard, blind rams, perforation gate board, kill manifold, choke manifold.Pressure testing is connected with back-off sub oil pipe after finishing in ∮ 73 oil pipe buckles, be lowered in the pit shaft, and dextrorotation oil pipe make-up makes back-off sub be connected at the rectangular thread place with axle, proposes pit shaft, and work pressure test finishes.
The utlity model has characteristics such as simple in structure, multi-functional, high pressure resistant, utilize it can carry out the pressure testing of various wellhead assembly sealings such as the short cover of well head, four-way, production tree, blowout preventer half envelope, blind rams, kill manifold, perforation gate board.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
As shown in the figure, the utility model is made up of back-off sub 1, axle 2, sealing plug 3, cone 4, slips 5, extension spring 6, slip spider 7, centralizer body 8, wiper block 9, spring 10, stop collar 11, roller 12, pin 13, track body 14 and nut 15, its structure, assembled relation are as follows: back-off sub 1 lower end is connected with axle 2 with rectangular thread, axle 2 outsides are set with sealing plug 3, the lower end is connected with cone 4, and cone 4 bottoms are track body 14; The outside, cone 4 bottoms is provided with slips 5 and slip spider 7, is set with extension spring 6 in the slips 5 middle part cannelures; Slip spider 7 belows are provided with centralizer body 8, and centralizer body 8 belows are provided with wiper block 9, and centralizer body 8 inboards are provided with supports wiper block 9 usefulness springs 10; Centralizer body 8 bottoms are with the stop collar 11 that has been threaded, and stop collar 11 inboards are provided with roller 12 and pin 13; Stop collar 11 lower ends are connected with track body 14 with screw thread, and nut 15 is equipped with in track body 14 lower ends.Wherein, back-off sub 1 upper end is ∮ 73 tubing threads, and the lower end is the rectangular thread button.Axle 2 upper ends are the rectangular thread button, and the lower end external screw thread is connected with cone 4 upper internal threaded.Cone 4 tops are tapered, and the bottom is the track body that is provided with long and short track, to 13 commutations of pin or guide effect.
Claims (1)
1. multifunctional well head pressure testing packer, form by back-off sub (1), axle (2), sealing plug (3), cone (4), slips (5), extension spring (6), slip spider (7), centralizer body (8), wiper block (9), spring (10), stop collar (11), roller (12), pin (13), track body (14) and nut (15), it is characterized in that: back-off sub (1) lower end is connected with axle (2) with rectangular thread, axle (2) outside is set with sealing plug (3), the lower end is connected with cone (4), and cone (4) bottom is track body (14); The outside, cone (4) bottom is provided with slips (5) and slip spider (7), is set with extension spring (6) in the cannelure of slips (5) middle part; Slip spider (7) below is provided with centralizer body (8), and centralizer body (8) below is provided with wiper block (9), and centralizer body (8) inboard is provided with supports wiper block (9) spring (10); Centralizer body (8) bottom is with the stop collar that has been threaded (11), and stop collar (11) inboard is provided with roller (12) and pin (13); Stop collar (11) lower end is connected with track body (14) with screw thread, and nut (15) is equipped with in track body (14) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136897U CN201080804Y (en) | 2007-08-06 | 2007-08-06 | Multifunctional wellhead pressure test packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136897U CN201080804Y (en) | 2007-08-06 | 2007-08-06 | Multifunctional wellhead pressure test packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080804Y true CN201080804Y (en) | 2008-07-02 |
Family
ID=39614478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200136897U Expired - Fee Related CN201080804Y (en) | 2007-08-06 | 2007-08-06 | Multifunctional wellhead pressure test packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080804Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268974A (en) * | 2011-07-28 | 2011-12-07 | 中国石油集团西部钻探工程有限公司 | Special tail pipe hanging packing assembly for shallow horizontal well |
| RU2453679C1 (en) * | 2011-01-12 | 2012-06-20 | Общество с ограниченной ответственностью Производственно-торговая фирма "НиГМаш" | Mechanical packer |
| CN103032061A (en) * | 2012-12-14 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司 | Wellhead Detection Method of Tubing Sealing Quality |
| CN105257280A (en) * | 2015-11-05 | 2016-01-20 | 大庆鸿润源石油科技开发有限公司 | Lifting pressure testing device |
| CN105840182A (en) * | 2016-05-20 | 2016-08-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Underground mechanical liquid level detecting tool |
| CN109098689A (en) * | 2018-08-31 | 2018-12-28 | 康庆刚 | Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device |
| CN113123754A (en) * | 2021-06-17 | 2021-07-16 | 东营市海天自动化工程有限责任公司 | Combined packer for oil field |
| CN113846989A (en) * | 2021-09-28 | 2021-12-28 | 刘东武 | Seat seal suspension pressure testing device |
-
2007
- 2007-08-06 CN CNU2007200136897U patent/CN201080804Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2453679C1 (en) * | 2011-01-12 | 2012-06-20 | Общество с ограниченной ответственностью Производственно-торговая фирма "НиГМаш" | Mechanical packer |
| CN102268974A (en) * | 2011-07-28 | 2011-12-07 | 中国石油集团西部钻探工程有限公司 | Special tail pipe hanging packing assembly for shallow horizontal well |
| CN102268974B (en) * | 2011-07-28 | 2013-06-19 | 中国石油集团西部钻探工程有限公司 | Special tail pipe hanging packing assembly for shallow horizontal well |
| CN103032061A (en) * | 2012-12-14 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司 | Wellhead Detection Method of Tubing Sealing Quality |
| CN103032061B (en) * | 2012-12-14 | 2015-08-19 | 中国石油集团川庆钻探工程有限公司 | Wellhead Detection Method of Tubing Sealing Quality |
| CN105257280A (en) * | 2015-11-05 | 2016-01-20 | 大庆鸿润源石油科技开发有限公司 | Lifting pressure testing device |
| CN105840182A (en) * | 2016-05-20 | 2016-08-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Underground mechanical liquid level detecting tool |
| CN105840182B (en) * | 2016-05-20 | 2022-10-18 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Underground mechanical liquid level detection tool |
| CN109098689A (en) * | 2018-08-31 | 2018-12-28 | 康庆刚 | Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device |
| CN113123754A (en) * | 2021-06-17 | 2021-07-16 | 东营市海天自动化工程有限责任公司 | Combined packer for oil field |
| CN113123754B (en) * | 2021-06-17 | 2021-09-28 | 山东健源石油工程技术有限公司 | Combined packer for oil field |
| CN113846989A (en) * | 2021-09-28 | 2021-12-28 | 刘东武 | Seat seal suspension pressure testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 Termination date: 20100806 |