A manual sucker rod coupling remover

Abstract

The invention belongs to a manual sucker rod coupling detacher. The detacher comprises a main clamp part and a back clamp part, wherein the main clamp part comprises a slip bracket; the inside of theslip bracket is provided with at least three slips. and the outer side of the slip is matched with a wedge-shaped slope plate arranged inside a worm wheel through a roller; the worm wheel is arrangedin a shell; the upper part of the shell is provided with a cylindrical shell; the cylindrical shell is provided with a worm adapted to an external thread of the worm wheel, one end of the worm is provided with a rotating hand wheel, and two sides of the shell are respectively provided with a left cover plate and a right cover plate of the shell; a positioning block is arranged on the left cover plate of the shell, one end of the positioning block is matched with the teeth of the slip bracket, and the other end of the positioning block is connected with a pull rod through a pin; the bottom of the shell is connected with the base of the bracket. The sucker rod coupling detacher has the advantages of simple structure, reasonable design, quick and accurate disassembly of the sucker rod coupling, which not only can effectively reduce labor intensity and improve working efficiency, but also can eliminate the safety hazard and ensure the personal safety of the post operation staff.

Description

technical field [0001] The invention belongs to the technical field of oil field workover devices, and in particular relates to a manual sucker rod coupling remover. Background technique [0002] During the production process of the pumping unit, due to the relative displacement between the pipes and rods and the influence of many factors such as the wellbore structure, pipe string combination, production parameters, crude oil viscosity, etc., the oil pipes and sucker rods are worn; in the later stage of production and development, especially The high water content changes the working medium of the rod pump well, so that the lubrication between the sucker rod and the tubing changes from crude oil to formation water, the lubricating performance decreases, the friction coefficient increases, and the degree of wear between the two is exacerbated. The outer diameter of the oil rod coupling is larger, and the degree of wear caused by it is also larger. [0003] At present, in th...

AI Technical Summary

Problems solved by technology

At present, when the sucker rod coupling is disassembled and replaced on site, workers on the ground are required to dismantle it with a pipe wrench on the ground. Tongs and shackles, taking active tongs and back tongs and other operations, about 150-200 sucker rod couplings need to be dismantled and replaced every well. There is a risk of personal injury

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