CN202100208U - Underground work pipe column tripping device - Google Patents
Underground work pipe column tripping device Download PDFInfo
- Publication number
- CN202100208U CN202100208U CN2011201781537U CN201120178153U CN202100208U CN 202100208 U CN202100208 U CN 202100208U CN 2011201781537 U CN2011201781537 U CN 2011201781537U CN 201120178153 U CN201120178153 U CN 201120178153U CN 202100208 U CN202100208 U CN 202100208U
- Authority
- CN
- China
- Prior art keywords
- joint
- male
- underground work
- pipe column
- female joint
- 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
Images
Abstract
The utility model provides an underground work pipe column tripping device, comprising an upper joint, a male joint, a female joint, a jacket and a fishing head. The underground work pipe column tripping device is characterized in that the inner periphery at the lower part of the upper joint is in threaded connection with a suspending short section, the outer periphery at the lower part of the upper joint is in splined connection with the male joint, the outer periphery at the middle part of the upper joint is in threaded connection with the jacket, the outer periphery at the lower part of the male joint is in oppositely-buckled connection with the female joint, the inner periphery at the lower part of the female joint is in splined connection with the lower part of the suspending short section, and the outer periphery at the lower part of the female joint is in threaded connection with the fishing head. By adopting a tooth embedded clutch mechanism, the tripping device can not trip when an underground pipe column forwards rotates, so that a tool is ensured to be discharged to a preset position; the tripping device is used for transferring the forward rotating torsion of the pipe column to the other connected tools; and during tripping off, the tripping device can be used for tripping off the forward rotating pipe column to trip off the underground work pipe column.
Description
Technical field
The utility model relates to the oil exploitation downhole tool, relates in particular to a kind of aboveground working string on-off connector.
Background technology
At present, employed on-off connector on the oil exploitation oil-water well, its structure is that male joint is left-hand thread with female joint and links to each other; After instrument was gone into the well and accomplished predetermined operation, positive tube post made on-off connector throw off in the male and female joint; Bottom Liu Jing, top trips out ground, reaches the purpose of uncoupling.But the on-off connector of this structure; Have following deficiency and shortcoming: 1, tubing string is gone into the well and is often produced tubing string in the process and just changeing phenomenon; Just the instrument that usually takes place is thrown off phenomenon midway, has to repeat the lower tubular column operation, causes prolong duty cycle; Cost up, a series of problems such as operating personnel's labour intensity increase.2, some downhole tool needs positive tube post transfer torque to work, and prior art exactly lacks the function of general positive tube post, does not satisfy the needs of this kind tool well.
Summary of the invention
The utility model provides a kind of underground work tubing string on-off connector, and it can solve deficiency or the shortcoming that exists in the above-mentioned prior art effectively.
The technical scheme of the utility model realizes in the following manner:
The utility model comprises top connection, male joint, female joint, sheath and fishing head; It is characterized in that the hanging pup joint that is threaded in week in the top connection bottom; Top connection lower, outer perimeter spline connects male joint, the top connection middle part periphery sheath that is threaded, and the left-hand thread of male joint lower, outer perimeter connects female joint; Zhou Huajian connects the bottom of hanging pup joint in the female joint bottom, the female joint middle part periphery fishing head that is threaded.
The top connection upper periphery is provided with male thread, interior week is provided with box thread, and lower, outer perimeter is provided with external splines, meshes with the male joint internal spline.
Hanging pup joint top is provided with male thread, and lower, outer perimeter is provided with external splines, with the internal spline engagement of female joint.
Be provided with the left-hand thread box thread week in the female joint top, lower, outer perimeter is provided with male thread, week is provided with internal spline in the bottom.
Male joint top is provided with internal spline, and lower, outer perimeter is established the left-hand thread male thread.
1, owing to adopted castellated clutch, when just changeing appearred in down-hole string, on-off connector was not thrown off, and guarantees under the instrument to the precalculated position;
2, can the positive torque of tubing string be passed to the instrument that other links to each other through on-off connector;
3, in the time of need giving up, positive tube post can make on-off connector throw off, and realizes giving up.
Description of drawings
The structural representation of Fig. 1-the utility model
1-top connection 2-hanging pup joint 3-sheath 4-male joint 5-female joint 6-fishing head among the figure
The specific embodiment
For further disclosing the technical scheme of the utility model, elaborate through embodiment below in conjunction with Figure of description:
The utility model comprises top connection 1, male joint 4, female joint 5, sheath 3 and fishing head 6; It is characterized in that the hanging pup joint that is threaded in week in the top connection bottom; Top connection lower, outer perimeter spline connects male joint, the top connection middle part periphery sheath that is threaded, and the left-hand thread of male joint lower, outer perimeter connects female joint; Zhou Huajian connects the bottom of hanging pup joint in the female joint bottom, the female joint middle part periphery fishing head that is threaded.
When going into the well, the external splines of hanging pup joint cooperates with the female joint internal spline, can transmit the positive torque of tubing string, prevents to give up midway; When the external splines of top connection cooperated with the internal spline of male joint, hanging pup joint and female joint constitute castellated clutch threw off, and this moment, positive tube post just can make the disengagement that is threaded of the left-hand thread of male joint and female joint, realized giving up.
Claims (5)
1. underground work tubing string on-off connector; Comprise top connection, male joint, female joint, sheath and fishing head, it is characterized in that the hanging pup joint that is threaded in week in the top connection bottom, top connection lower, outer perimeter spline connects male joint; The top connection middle part periphery sheath that is threaded; Male joint lower, outer perimeter left-hand thread connects female joint, and Zhou Huajian connects the bottom of hanging pup joint female joint the bottom in, the periphery fishing head that is threaded in the middle part of the female joint.
2. underground work tubing string on-off connector according to claim 1 is characterized in that the top connection upper periphery is provided with male thread, interior week is provided with box thread, and lower, outer perimeter is provided with external splines, meshes with the male joint internal spline.
3. underground work tubing string on-off connector according to claim 1 is characterized in that hanging pup joint top is provided with male thread, and lower, outer perimeter is provided with external splines, with the internal spline engagement of female joint.
4. underground work tubing string on-off connector according to claim 1 is characterized in that being provided with the left-hand thread box thread week in the female joint top, lower, outer perimeter is provided with male thread, and week is provided with internal spline in the bottom.
5. underground work tubing string on-off connector according to claim 1 is characterized in that male joint top is provided with internal spline, and lower, outer perimeter is established the left-hand thread male thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201781537U CN202100208U (en) | 2011-05-18 | 2011-05-18 | Underground work pipe column tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201781537U CN202100208U (en) | 2011-05-18 | 2011-05-18 | Underground work pipe column tripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100208U true CN202100208U (en) | 2012-01-04 |
Family
ID=45386224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201781537U Expired - Fee Related CN202100208U (en) | 2011-05-18 | 2011-05-18 | Underground work pipe column tripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704880A (en) * | 2012-05-09 | 2012-10-03 | 中国石油天然气股份有限公司 | Fracture fixed core sleeve mill shoe |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
-
2011
- 2011-05-18 CN CN2011201781537U patent/CN202100208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704880A (en) * | 2012-05-09 | 2012-10-03 | 中国石油天然气股份有限公司 | Fracture fixed core sleeve mill shoe |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202100208U (en) | Underground work pipe column tripping device | |
| CN101892815B (en) | Hydromechanical drilling jar | |
| CN203702075U (en) | Hydraulic packer | |
| CN202767931U (en) | Hydraulic back-off salvage device of down hole | |
| CN202031489U (en) | Drill rod connected through spline | |
| CN201738832U (en) | Back-off safety joint | |
| CN202273585U (en) | Unit head of full screw earth auger | |
| CN202970581U (en) | Salvaging device of cables under oil well | |
| CN202000943U (en) | Spirally-guided retrievable salvaging spear | |
| CN2539833Y (en) | Disconnecting-connecting apparatus | |
| CN201902176U (en) | Bumper safety joint | |
| CN203081322U (en) | Oil field underground extension tube for torque transmission | |
| CN202731807U (en) | Downhole fishing tool | |
| CN203476294U (en) | Throwing-in and pulling-out type submersible screw pump | |
| CN203033692U (en) | Electro-hydraulic double-power well repairing machine winch | |
| CN202417364U (en) | Releasing tool for hydraulic suspension packer | |
| CN202627985U (en) | Overlarge-size hexagonal kelly | |
| CN203515358U (en) | Drilling torque reducer | |
| CN203547536U (en) | Rapid redressing device for oil drilling | |
| CN203669809U (en) | Releasing double-slip overshot | |
| CN204212729U (en) | A kind of without box cupling shaft fishing tool | |
| CN202202822U (en) | Torque-reducing connector for a drill rod | |
| CN202767912U (en) | Relocation mechanism capable of being dismantled and buckled | |
| CN203891793U (en) | Drill rod unloader | |
| CN203796185U (en) | Easily-detachable quick connection device for drilling machine |
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: 20120104 Termination date: 20120518 |