Sucker rod back-off device tool

An undercut device and sucker rod technology, which is applied in the direction of drill pipe, drilling equipment, earthwork drilling and production, etc., can solve the problems affecting the production timeliness and hidden safety hazards of manual undercut, so as to improve the on-site production efficiency and reduce the replacement of oil pipe hydraulic pressure Clamping time, the effect of avoiding the risk of personal injury

Pending Publication Date: 2022-01-25
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now the most commonly used methods are sucker rod undercut hydraulic pliers and manual undercut. Using underturn pliers requires repeated disconnection and connection of hydraulic tong pipelines, which affects production timeliness; manual undercut has great safety hazards

Method used

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  • Sucker rod back-off device tool
  • Sucker rod back-off device tool
  • Sucker rod back-off device tool

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0032] A sucker rod reverser tool, comprising a first tooth bracket 4 and a second tooth bracket 5 arranged up and down, the first tooth bracket 4 and the second tooth bracket 5 are connected by bolts 1 and nuts 6, the first tooth bracket The lower surface of the holder 4 is provided with a lower tooth piece installation groove 41, and the upper surface of the second tooth holder 5 is provided with an upper tooth piece installation groove 51, and the lower tooth piece installation groove 41 and the upper tooth piece installation groove 51 are arranged symmetrically up and down. The upper tooth sheet 2 is provided with the upper tooth sheet installation groove 41, and the lower tooth sheet 7 is ...

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Abstract

The invention discloses a sucker rod back-off device tool. The sucker rod back-off device tool comprises a first tooth support (4) and a second tooth support (5) which are arranged up and down, the first tooth support (4) and the second tooth support (5) are connected through a bolt (1) and a nut (6), a lower tooth piece installation groove (41) is formed in the lower surface of the first tooth support (4), an upper tooth piece installation groove (51) is formed in the upper surface of the second tooth support (5), an upper tooth piece (2) is arranged in the lower tooth piece installation groove (41), a lower tooth piece (7) is arranged in the upper tooth piece installation groove (51), and the upper tooth piece (2) and the lower tooth piece (7) can be detached. According to the sucker rod back-off device tool, the personal injury risk caused by manual back-off can be avoided, the time for replacing an oil pipe hydraulic clamp after the sucker rod back-off hydraulic clamp is used for back-off is shortened, waste of hydraulic oil is reduced, and the field production efficiency is improved.

Description

technical field [0001] The invention relates to the field of oil well workover equipment, in particular to a sucker rod undercut tool. Background technique [0002] During minor repair work, oil well wax stuck sucker rods, sand stuck sucker rods or foreign matter stuck sucker rods are often encountered, which brings a lot of trouble to the construction work. Now the most commonly used methods are sucker rod undercut hydraulic pliers and manual undercut. Using underturn pliers requires repeated disconnection and connection of hydraulic tong pipelines, which affects production timeliness; manual undercut has great safety hazards. Contents of the invention [0003] In order to improve the efficiency of sucker rod undercutting, the present invention provides a sucker rod undercutting tool, which can avoid the risk of personal injury caused by manual undercutting and reduce the risk of using sucker rod undercutting hydraulic pressure. After the tongs are reversed, the time for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/16E21B19/10
CPCE21B19/16E21B19/10
Inventor 李东周华王宁王四明李长福胡春波金巨翔张仲尼迟洪涛李丹凤王罡王小文李南王剑刘冰李正魏清清
Owner PETROCHINA CO LTD
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