CN204357387U - A kind of positive two-way anticreep fishing rod of left-hand thread - Google Patents
A kind of positive two-way anticreep fishing rod of left-hand thread Download PDFInfo
- Publication number
- CN204357387U CN204357387U CN201420799971.2U CN201420799971U CN204357387U CN 204357387 U CN204357387 U CN 204357387U CN 201420799971 U CN201420799971 U CN 201420799971U CN 204357387 U CN204357387 U CN 204357387U
- Authority
- CN
- China
- Prior art keywords
- hand thread
- fishing rod
- lower contact
- top connection
- positive
- 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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- Fishing Rods (AREA)
Abstract
A kind of positive two-way anticreep fishing rod of left-hand thread, this device has right-hand thread top connection (1), left-hand thread top connection (2), fishing rod body (3), right-hand thread lower contact (4), left-hand thread lower contact (5) composition, it is characterized in that: right-hand thread top connection (1) and left-hand thread top connection (2) are set at the top of fishing rod body (3), right-hand thread lower contact (4), left-hand thread lower contact (5) are set at the afterbody of fishing rod body (3).Use this device connecting downhole fishing tool, can fish for the trouble of lost tool in hole fallen in oil well easily, no matter be rotate forward to salvage or reversion salvaging, due to the bidirectional self-locking effect of positive left-hand tool joint, fishing rod is all not easily threaded off, and improves and fishes for success rate.
Description
Technical field
The utility model relates to oil well fishing operation field, especially relates to a kind of positive two-way anticreep fishing rod of left-hand thread.
Background technology
At present, known technology is that the salvaging of oil well falling-matter does not have two-way anticreep fishing rod, and can only salvage or oppositely salvage by forward the salvaging of oil well falling-matter, fishing success ratio is low, and operation easier is large, often has fishing rod case accident and occur in salvaging process.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of positive two-way anticreep fishing rod of left-hand thread, uses this device effectively to prevent fishing rod from coming off, improves and fish for success rate.
The utility model solves the technical scheme that its technical problem adopts: adopt a kind of positive two-way anticreep fishing rod of left-hand thread, this device is made up of right-hand thread top connection, left-hand thread top connection, fishing rod body, right-hand thread lower contact, left-hand thread lower contact, it is characterized in that: right-hand thread top connection and left-hand thread top connection are set at the top of fishing rod body, right-hand thread lower contact, left-hand thread lower contact are set at the afterbody of fishing rod body.The effect of right-hand thread top connection is connected with the right-hand thread lower contact of upper level fishing rod afterbody, and the effect of left-hand thread top connection is connected with the left-hand thread lower contact of upper level fishing rod afterbody; The effect of right-hand thread lower contact is connected with the right-hand thread top connection at next stage fishing rod top, and the effect of left-hand thread lower contact is connected with the left-hand thread top connection at next stage fishing rod top; The effect of fishing rod body connects top connection and lower contact, use this device connecting downhole fishing tool, the trouble of lost tool in hole fallen in oil well can be fished for easily, no matter be rotate forward to salvage or reversion salvaging, due to the bidirectional self-locking effect of positive left-hand tool joint, fishing rod is all not easily threaded off, and improves and fishes for success rate.
the beneficial effects of the utility model: pass through field trial, the utility model compared with prior art, use this device connecting downhole fishing tool, the trouble of lost tool in hole fallen in oil well can be fished for easily, no matter be rotate forward to salvage or reversion salvaging, due to the bidirectional self-locking effect of positive left-hand tool joint, fishing rod is all not easily threaded off, and improves and fishes for success rate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is the structural representation of the two-way anticreep fishing rod of a kind of positive left-hand thread.
In Fig. 1: 1. right-hand thread top connection; 2. left-hand thread top connection; 3. fishing rod body; 4. right-hand thread lower contact; 5. left-hand thread lower contact.
detailed description of the invention:
The utility model solves the technical scheme that its technical problem adopts: adopt a kind of positive two-way anticreep fishing rod of left-hand thread, this device has right-hand thread top connection (1), left-hand thread top connection (2), fishing rod body (3), right-hand thread lower contact (4), left-hand thread lower contact (5) composition, it is characterized in that: right-hand thread top connection (1) and left-hand thread top connection (2) are set at the top of fishing rod body (3), right-hand thread lower contact (4), left-hand thread lower contact (5) are set at the afterbody of fishing rod body (3).Wherein, the effect of right-hand thread top connection (1) is connected with the right-hand thread lower contact of upper level fishing rod afterbody, and the effect of left-hand thread top connection (2) is connected with the left-hand thread lower contact of upper level fishing rod afterbody; The effect of right-hand thread lower contact (4) is connected with the right-hand thread top connection at next stage fishing rod top, and the effect of left-hand thread lower contact (5) is connected with the left-hand thread top connection at next stage fishing rod top; The effect of fishing rod body connects upper lower contact, use this device connecting downhole fishing tool, the trouble of lost tool in hole fallen in oil well can be fished for easily, no matter be rotate forward to salvage or reversion salvaging, due to the bidirectional self-locking effect of positive left-hand tool joint, fishing rod is all not easily threaded off, and improves and fishes for success rate.
Claims (1)
1. the two-way anticreep fishing rod of positive left-hand thread, this device has right-hand thread top connection (1), left-hand thread top connection (2), fishing rod body (3), right-hand thread lower contact (4), left-hand thread lower contact (5) composition, it is characterized in that: right-hand thread top connection (1) and left-hand thread top connection (2) are set at the top of fishing rod body (3), right-hand thread lower contact (4), left-hand thread lower contact (5) are set at the afterbody of fishing rod body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799971.2U CN204357387U (en) | 2014-12-18 | 2014-12-18 | A kind of positive two-way anticreep fishing rod of left-hand thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799971.2U CN204357387U (en) | 2014-12-18 | 2014-12-18 | A kind of positive two-way anticreep fishing rod of left-hand thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357387U true CN204357387U (en) | 2015-05-27 |
Family
ID=53258864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420799971.2U Expired - Fee Related CN204357387U (en) | 2014-12-18 | 2014-12-18 | A kind of positive two-way anticreep fishing rod of left-hand thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331536A (en) * | 2018-01-25 | 2018-07-27 | 中国海洋石油集团有限公司 | A kind of small drill collar joint of novel torsion-resistant |
-
2014
- 2014-12-18 CN CN201420799971.2U patent/CN204357387U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331536A (en) * | 2018-01-25 | 2018-07-27 | 中国海洋石油集团有限公司 | A kind of small drill collar joint of novel torsion-resistant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |