CN202064852U - Multi-purpose safety joint - Google Patents
Multi-purpose safety joint Download PDFInfo
- Publication number
- CN202064852U CN202064852U CN2011201729909U CN201120172990U CN202064852U CN 202064852 U CN202064852 U CN 202064852U CN 2011201729909 U CN2011201729909 U CN 2011201729909U CN 201120172990 U CN201120172990 U CN 201120172990U CN 202064852 U CN202064852 U CN 202064852U
- Authority
- CN
- China
- Prior art keywords
- joint
- safety joint
- screw thread
- purpose safety
- tool
- 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
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Abstract
The utility model provides a multi-purpose safety joint which is composed of an upper joint and a lower joint, wherein the upper part of the upper joint is connected with an upper drill rig through screw threads. The multi-purpose safety joint is characterized in that external screw threads are arranged in the middle of the upper joint, the lower part of the upper joint is connected with the upper part of the lower joint through the screw threads, and the external screw threads are arranged at the lower part of the lower joint. The multi-purpose safety joint with multiple purposes not only can be connected with the upper drill rig and a fishing tool, but also can be connected with an auxiliary tool; the connected auxiliary tool has the functions of guide and assistance for the accidents caused by the non-centered downhole drill rig, and the multi-purpose safety joint is favorable to improve the salving success ratio; when the salvage tool cannot be pulled out, the auxiliary tool can be pulled out along with the upper safety joint, and therefore the multi-purpose safety joint is very suitable for drilling operation.
Description
Technical field
The utility model relates to safety joint, is specifically related to a kind of multipurpose safety joint.
Background technology
In drillng operation, phenomenons such as drilling tool is disconnected, bit freezing appear usually easily, and cause drilling tool to fall in the well or be stuck in the well thus, take place for fear of this phenomenon, connect safety joint usually in the drilling tool bottom, connect fishing tool in the safety joint bottom again.But the outside of existing safety joint can not connect other aid, makes to salvage when down-hole equipment is not placed in the middle that difficulty is big, success rate is low.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of multipurpose safety joint.
In order to address the above problem, according to the technical solution of the utility model, a kind of multipurpose safety joint, be made of top connection and lower contact, wherein, the top of top connection and top drilling tool pass through thread connection, be characterized in: the middle part of top connection is provided with external screw thread, the bottom of top connection and the top of lower contact are provided with external screw thread by thread connection in the bottom of lower contact, and this external screw thread is used for connecting with fishing tool; Middle part in top connection is provided with external screw thread, aid can connect with top connection by this external screw thread, and to down-hole equipment accident not placed in the middle, connecting aid has guiding, booster action, help salvaging, and, when fishing tool can't trip out, still can reverse and rotate the top drilling tool, top connection is opened from connecting screw thread with lower contact, aid trips out with top connection, makes aid can not stay the down-hole, can not increase the complexity of down-hole.
The beneficial effect of a kind of multipurpose safety joint described in the utility model is: the utility model purposes is many, can link with top drilling tool, fishing tool, also can link with aid, to down-hole equipment accident not placed in the middle, connecting aid has guiding, booster action, helps improving fishing success ratio, and, when fishing tool can't trip out, can guarantee that still aid trips out with last safety joint, be fit to very much drillng operation and use.
Description of drawings
Fig. 1 is the structural representation of a kind of multipurpose safety joint described in the utility model.
The specific embodiment
Referring to Fig. 1, a kind of multipurpose safety joint, constitute by top connection 1 and lower contact 2, wherein, the top of top connection 1 connects by screw thread 3 with the top drilling tool, and the middle part of top connection 1 is provided with external screw thread 4, and the bottom of top connection 1 connects by screw thread 5 with the top of lower contact 2, be provided with external screw thread 6 in the bottom of lower contact 2, this external screw thread 6 connects with fishing tool.
During concrete the use, the top of last safety joint 1 connects by screw thread 3 with the top drilling tool, aid connects by external screw thread 4 with the middle part of last safety joint, the bottom of top connection 1 connects by screw thread 5 with the top of lower contact 2, and the top of fishing tool connects by external screw thread 6 with the bottom of lower contact 2; During fishing, the top drilling tool rotates and drives fishing tool and aid rotation carrying out fishing; When fishing tool can't trip out, the top drilling tool was rotated in counter-rotating, and top connection 1 is opened from connecting screw thread 5 with lower contact 2, and aid trips out with last safety joint, and the assurance aid is not stayed the down-hole.
Claims (1)
1. multipurpose safety joint, constitute by top connection (1) and lower contact (2), wherein, the top of top connection (1) connects by screw thread (3) with the top drilling tool, it is characterized in that: the middle part of top connection (1) is provided with external screw thread (4), the bottom of top connection (1) connects by screw thread (5) with the top of lower contact (2), is provided with external screw thread (6) in the bottom of lower contact (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201729909U CN202064852U (en) | 2011-05-27 | 2011-05-27 | Multi-purpose safety joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201729909U CN202064852U (en) | 2011-05-27 | 2011-05-27 | Multi-purpose safety joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064852U true CN202064852U (en) | 2011-12-07 |
Family
ID=45058720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201729909U Expired - Fee Related CN202064852U (en) | 2011-05-27 | 2011-05-27 | Multi-purpose safety joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141467A (en) * | 2014-07-16 | 2014-11-12 | 山西蓝焰煤层气集团有限责任公司 | Tool special for fishing combination operation on tail pipe in coal-bed gas well and operation process by using tool |
| CN106869847A (en) * | 2015-12-11 | 2017-06-20 | 贵州高峰石油机械股份有限公司 | A kind of underground right-hand thread drilling tool Refloatation method and the back-off joint for being used |
-
2011
- 2011-05-27 CN CN2011201729909U patent/CN202064852U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141467A (en) * | 2014-07-16 | 2014-11-12 | 山西蓝焰煤层气集团有限责任公司 | Tool special for fishing combination operation on tail pipe in coal-bed gas well and operation process by using tool |
| CN106869847A (en) * | 2015-12-11 | 2017-06-20 | 贵州高峰石油机械股份有限公司 | A kind of underground right-hand thread drilling tool Refloatation method and the back-off joint for being used |
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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: 20111207 Termination date: 20140527 |