CN101793127B - Anti-tripping reverse buckling device - Google Patents
Anti-tripping reverse buckling device Download PDFInfo
- Publication number
- CN101793127B CN101793127B CN2009102662602A CN200910266260A CN101793127B CN 101793127 B CN101793127 B CN 101793127B CN 2009102662602 A CN2009102662602 A CN 2009102662602A CN 200910266260 A CN200910266260 A CN 200910266260A CN 101793127 B CN101793127 B CN 101793127B
- Authority
- CN
- China
- Prior art keywords
- key
- hand thread
- reverse buckling
- joint
- groove
- 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.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000010008 shearing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Images
Abstract
The invention relates to an anti-tripping reverse buckling device. An oil pipe coupling is connected with an upper joint. An inner shoulder of a reverse buckling inner joint is hung on an outer shoulder of the upper joint. A reserve buckling external thread at the lower part of the reverse buckling inner joint is connected with a reverse buckling internal thread of the reverse buckling outer joint. The upper part of a lock sleeve is sleeved outside the upper joint. The upper joint is provided with a convex key. The interior of the lock sleeve is provided with a lock key groove, and the convex key is inserted in the lock key groove. The lock sleeve is fixed on the upper joint by a shearing pin. The interior of the reverse buckling inner joint is provided with a positive key groove, and the convex key is inserted in the positive key groove. A spring is arranged between the lock sleeve and the reverse buckling inner joint. The lower part of the lock sleeve is provided with a groove key, the upper part of the reverse buckling inner joint is provided with a groove key, and the groove keys are buckled. Under the action of the convex key, the lock key groove, the groove key on the lower part of the key sleeve and the groove key on the upper part of the reverse buckling inner joint, when the oil pipe is positively reversed, the connecting part of the reserve buckling external thread at the lower part of the reverse buckling inner joint and the reverse buckling internal thread of the reverse buckling outer joint can not trip, therefore, the invention can be matched with a tool for positively rotating oil pipes.
Description
Technical field:
The present invention is the downhole tool that oilfield oil well is used, particularly a kind of anti-tripping reverse buckling device.
Background technology:
After oil-water well used through long-term production, problems such as shaft deformation, reduced had all appearred in great majority; Often take place during operation to block the event of running affairs, need carry out back-off segmentation unfreezing to tubing string and pull out, can not accurately open during back-off from a certain position; Cause the downhole tool component to be scattered, bring very big difficulty for the Salvage and Wreck Removal trouble of lost tool in hole, increase considerably operating cost; The well that has is scrapped because of can't all pulling the water injection packer component that are scattered out, causes heavy economic losses.In order to address this problem, left-hand thread joint (also claiming safety joint) is often adopted in the oil field, is connected by left hand thread on the left-hand thread joint, can open from the left-hand thread joint when just changeing oil pipe, realizes the purpose of accurately opening.But this left-hand thread joint can not just change the supporting use of instrument of oil pipe with needs, like instruments such as Y221 packers, because will cause the left-hand thread joint well of threading off when just changeing oil pipe, and need just change oil pipe during the Y221 packer set.So the use of left-hand thread joint is restricted, can not be in all aboveground uses.
Summary of the invention:
The objective of the invention is a kind of anti-tripping reverse buckling device, when not supporting, can just change oil pipe, can just change the supporting use of instrument of oil pipe with needs.
The objective of the invention is to realize like this: tubing coupling is arranged, also have top connection, cut off pin, lock tube, spring, left-hand thread spigot, left-hand thread socket, tubing coupling is connected with top connection; Shoulder is suspended on the outer shoulder by top connection in the left-hand thread spigot, and left-hand thread spigot bottom left-hand thread external screw thread is connected with the left-hand thread internal thread of left-hand thread socket, and lock tube top is sleeved on outside the top connection; Protruding key is arranged in the top connection, lock keyway is arranged in the lock tube, protruding key is inserted in the lock keyway; Lock tube is fixed in the top connection by cutting off pin, and there is positive keyway inside on the left-hand thread spigot, and protruding key is inserted in the positive keyway; Mounting spring between lock tube and the left-hand thread spigot, the spring upper end is supported on the interior shoulder of lock tube, and the spring lower end is supported on the shoulder of left-hand thread spigot; Sunk key is arranged at the lock tube bottom, and sunk key is arranged at left-hand thread spigot top, and both sunk keies interlock.
The invention has the beneficial effects as follows: under the sunk key effect on the sunk key of protruding key, lock keyway and lock tube bottom and button spigot top; When just changeing oil pipe; Can not thread off in the left-hand thread internal thread junction of left-hand thread spigot bottom left-hand thread external screw thread and left-hand thread socket; Therefore, the present invention can just change the supporting use of instrument of oil pipe with needs.
Description of drawings:
Accompanying drawing 1 is an assembling drawing of the present invention.
Accompanying drawing 2 is the profiles after cutting open from A-A in the accompanying drawing 1.
Accompanying drawing 3 is the profiles after cutting open from B-B in the accompanying drawing 1.
The specific embodiment:
Below in conjunction with accompanying drawing embodiments of the invention are described.
Embodiments of the invention by tubing coupling 1, top connection 2, cut off pin 3, lock tube 4, spring 5, left-hand thread spigot 6, left-hand thread socket 7 are formed, tubing coupling 1 is connected with top connection 2, left-hand thread spigot 6 interior shoulders are suspended on the outer shoulder by top connection 2; Left-hand thread spigot 6 bottom left-hand thread external screw threads are connected with the left-hand thread internal thread of left-hand thread socket 7, and lock tube 4 tops are sleeved on outside the top connection 2, and protruding key 8 is arranged in the top connection 2; Lock keyway 9 is arranged in the lock tube 4, and protruding key 8 is inserted in 9 li of lock keyways, and lock tube 4 is fixed in the top connection 2 by cutting off pin 3; There is positive keyway 10 inside on the left-hand thread spigot 6; Protruding key 8 is inserted in 10 li in positive keyway, mounting spring 5 between lock tube 4 and the left-hand thread spigot 6, and spring 5 upper ends are supported on the interior shoulder of lock tube 4; Spring 5 lower ends are supported on the shoulder of left-hand thread spigot 6; Sunk key is arranged at lock tube 4 bottoms, and sunk key is arranged at left-hand thread spigot 6 tops, and both sunk keies interlock.
With like the supporting use of the instrument of Y221 packer and so on the time, the seat envelope power during the Y221 packer will be cut off pin 3 and cut off, and spring 5 flicks lock tube 4; Both sunk keies no longer interlock, and need just change oil pipe when the present invention opens when carrying tubing string; Under the effect of protruding key 8 and positive keyway 10,6 rotations of left-hand thread spigot, left-hand thread socket 7 is not rotated; The left-hand thread screw thread of both junctions is thrown off, and the tubing string of left-hand thread spigot more than 6 is suggested, and realizes the purpose of accurate back-off.
Claims (1)
1. an anti-tripping reverse buckling device has tubing coupling (1), it is characterized in that: also have top connection (2), cut off pin (3), lock tube (4), spring (5), left-hand thread spigot (6), left-hand thread socket (7); Tubing coupling (1) is connected with top connection (2), and the interior shoulder of left-hand thread spigot (6) is suspended on the outer shoulder by top connection (2), and left-hand thread spigot (6) bottom left-hand thread external screw thread is connected with the left-hand thread internal thread of left-hand thread socket (7); Lock tube (4) top is sleeved on outside the top connection (2), and protruding key (8) is arranged in the top connection (2), and lock keyway (9) is arranged in the lock tube (4); Protruding key (8) is inserted in lock keyway (9) lining; Lock tube (4) is fixed in the top connection (2) by cutting off pin (3), and left-hand thread spigot (6) is gone up inside has positive keyway (10), and protruding key (8) is inserted in positive keyway (10) lining; Mounting spring (5) between lock tube (4) and the left-hand thread spigot (6); Spring (5) upper end is supported on the interior shoulder of lock tube (4), and spring (5) lower end is supported on the shoulder of left-hand thread spigot (6), and sunk key is arranged at lock tube (4) bottom; Sunk key is arranged at left-hand thread spigot (6) top, and both sunk keies interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102662602A CN101793127B (en) | 2009-12-24 | 2009-12-24 | Anti-tripping reverse buckling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102662602A CN101793127B (en) | 2009-12-24 | 2009-12-24 | Anti-tripping reverse buckling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793127A CN101793127A (en) | 2010-08-04 |
| CN101793127B true CN101793127B (en) | 2012-03-28 |
Family
ID=42586020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102662602A Expired - Fee Related CN101793127B (en) | 2009-12-24 | 2009-12-24 | Anti-tripping reverse buckling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101793127B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155171A (en) * | 2010-12-14 | 2011-08-17 | 张超 | Drill rod joint |
| CN104832111B (en) * | 2015-05-12 | 2017-06-30 | 杜晓瑞 | Multi-functional drilling well casing adapter |
| CN110593776A (en) * | 2019-10-14 | 2019-12-20 | 中国石油化工股份有限公司 | Anti-back-buckling drill rod |
| CN110578488A (en) * | 2019-10-21 | 2019-12-17 | 潍坊市宇宏石油机械有限公司 | Casing damage well repairing tool and repairing method |
| CN112855041B (en) * | 2021-03-11 | 2023-03-31 | 中海艾普油气测试（天津）有限公司 | Safety joint for testing lower part of packer and releasing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624709A2 (en) * | 1993-05-14 | 1994-11-17 | Sofitech N.V. | Drilling string connector |
| CN1204379A (en) * | 1995-12-09 | 1999-01-06 | 石油管井系统有限公司 | Tubing connector |
| CN2632294Y (en) * | 2003-06-12 | 2004-08-11 | 大庆石油管理局 | Drill rod rapid joint |
| CN1708629A (en) * | 2002-10-22 | 2005-12-14 | 泰西莫开发销售有限公司 | Apparatus for connecting two basically rod shaped and tube shaped elements |
| GB2428708A (en) * | 2005-07-30 | 2007-02-07 | Schlumberger Holdings | Wellbore tubing hanger allowing completion equipment to be rotationally oriented |
| CN101144371A (en) * | 2007-11-02 | 2008-03-19 | 大港油田集团有限责任公司 | Pumping rod connecting device |
| CN101506461A (en) * | 2006-07-10 | 2009-08-12 | 斯塔特石油公开有限公司 | Coupling device |
| CN201581842U (en) * | 2009-12-24 | 2010-09-15 | 张键 | Anti-run back-off device |
-
2009
- 2009-12-24 CN CN2009102662602A patent/CN101793127B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624709A2 (en) * | 1993-05-14 | 1994-11-17 | Sofitech N.V. | Drilling string connector |
| CN1204379A (en) * | 1995-12-09 | 1999-01-06 | 石油管井系统有限公司 | Tubing connector |
| CN1708629A (en) * | 2002-10-22 | 2005-12-14 | 泰西莫开发销售有限公司 | Apparatus for connecting two basically rod shaped and tube shaped elements |
| CN2632294Y (en) * | 2003-06-12 | 2004-08-11 | 大庆石油管理局 | Drill rod rapid joint |
| GB2428708A (en) * | 2005-07-30 | 2007-02-07 | Schlumberger Holdings | Wellbore tubing hanger allowing completion equipment to be rotationally oriented |
| CN101506461A (en) * | 2006-07-10 | 2009-08-12 | 斯塔特石油公开有限公司 | Coupling device |
| CN101144371A (en) * | 2007-11-02 | 2008-03-19 | 大港油田集团有限责任公司 | Pumping rod connecting device |
| CN201581842U (en) * | 2009-12-24 | 2010-09-15 | 张键 | Anti-run back-off device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101793127A (en) | 2010-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101793127B (en) | Anti-tripping reverse buckling device | |
| CN110593777B (en) | Double-gradient drilling string disconnecting and tieback device without marine riser | |
| CN101956540A (en) | Novel drill rod valve | |
| CN201581842U (en) | Anti-run back-off device | |
| CN109025849B (en) | Multifunctional drill collar lifting nipple | |
| CN201212360Y (en) | Ring-releasing safety joint | |
| CN201843556U (en) | Hydraulic withdrawable overshot | |
| CN103711456A (en) | Hydraulic switching tool for deep-water oil well | |
| CN203296709U (en) | Hydraulic-releasing telescopic pipe | |
| CN201554386U (en) | Safety joint | |
| CN2893127Y (en) | Hydraulic safety joint | |
| CN201103360Y (en) | Underground falling objects salvaging barrel | |
| CN203097708U (en) | Anti-fall device for transmission shaft of screw drill | |
| CN201620784U (en) | Novel safe releasing device | |
| CN201277164Y (en) | Oil-draining lubricator type oil pump | |
| CN2844421Y (en) | Special block packer for horizontal well | |
| CN202832337U (en) | Side-opening sucker rod overshot | |
| CN202165024U (en) | Lift type safe connector | |
| CN209483269U (en) | A kind of downhole-choke release tool | |
| CN103775017B (en) | Device is dragged in a kind of Refloatation method and side used of disconnected bar | |
| CN214247258U (en) | Fishing fish male cone in pit | |
| CN109519137A (en) | A kind of downhole-choke release tool | |
| CN204436332U (en) | Oil pipe raffinate environmental protection guiding device | |
| CN204851144U (en) | A high -efficient fishing tap for fishing operation in pit | |
| CN105221083B (en) | A kind of apparatus and method for being used to reclaim drill string in accident well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fan Xuehua Inventor after: Zhou Wenbo Inventor after: Xie Xianhua Inventor after: Lu Qingling Inventor after: Gao Rui Inventor after: Sun Hanmin Inventor after: Gao Lijun Inventor before: Yu Zhiwei Inventor before: Liu Sen Inventor before: Zhang Yongjun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU ZHIWEI LIU SEN ZHANG YONGJUN TO: FAN XUEHUA ZHOU WENBO XIE XIANHUA LU QINGLING GAO RUI SUN HANMIN GAO LIJUN |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANTONG TONGZHOU DISTRICT PRODUCTIVITY PROMOTION C Free format text: FORMER OWNER: ZHANG JIAN Effective date: 20131107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 257051 DONGYING, SHANDONG PROVINCE TO: 226300 NANTONG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131107 Address after: 226300, six floor, Xianghe Road, Jinsha Road, Jinsha Town, Nantong, Jiangsu, Tongzhou District Patentee after: Tongzhou District Nantong Productivity Promotion Center Address before: 1-667 mailbox, Shengli oil production plant, Dongying, Shandong, 257051 Patentee before: Zhang Jian |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20181224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |