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 PDF

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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
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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
Application number
CN201420799971.2U
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Chinese (zh)
Inventor
刘延民
赵靓
于文海
高永胜
孙陈清
张旭
李红军
李建刚
王永刚
蔡淑琴
刘祥俊
李锋超
任虎
王玉安
李文华
王春旭
罗立芳
张德祥
张强
李敏
吴维峰
苏振波
赵和江
李贵勇
吴增昌
张红
张倩倩
孙晓明
卢建文
卢小景
王鹏
牟家凯
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Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201420799971.2U priority Critical patent/CN204357387U/en
Application granted granted Critical
Publication of CN204357387U publication Critical patent/CN204357387U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of positive two-way anticreep fishing rod of left-hand thread
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).
CN201420799971.2U 2014-12-18 2014-12-18 A kind of positive two-way anticreep fishing rod of left-hand thread Expired - Fee Related CN204357387U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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