Portable pipe shifting mechanism for pipe rod lifting device in well repair work

Abstract

The invention provides a portable pipe shifting mechanism for a pipe rod lifting device in the well repair work. The mechanism comprises an upper supporting seat (4) and a shifting fork assembly, wherein the shifting fork assembly is detachably connected with a first rotating shaft (9) of the upper supporting seat (4); when one end of a shifting fork (1) is connected with one end of the first rotating shaft (9), a driving part can drive the other end of the shifting fork (1) to clockwise upwards rotate around the first rotating shaft (9); when the one end of the shifting fork (1) is connected with the other end of the first rotating shaft (9), the driving part can drive the other end of the shifting fork (1) to anticlockwise upwards rotate around the first rotating shaft (9). With the adoption of the mechanism, the tasks of drawing and throwing pipes of pipe rods (including pipe columns) can be achieved well; the mechanism is detachable, so that the transportation is convenient; the mechanism can be mounted at both sides of the pipe rod lifting device in the well repair work; the field applicability is high; meanwhile, the labor intensity of workers in well repair can be reduced.

Description

technical field [0001] The invention relates to the field of oil field workover technology, in particular to a portable pipe pulling mechanism used on a pipe rod lifting device for workover operations. Background technique [0002] During the workover operation, it is necessary to perform a large number of tripping and discharging operations on the sucker rod, casing and tubing, especially in the tripping process, it is necessary to repeat the tripping operation of the pipe rod (including the pipe string) many times. The lifting and lowering of pipes and poles not only takes a lot of time, but also is labor-intensive and has high safety risks. At present, in the process of workover operations, the pulling and throwing between the pipe rod lifting device and the pipe bridge are usually carried by workers manually. The disadvantage of this operation method is that the labor intensity of the workover workers is high, and the handling efficiency Low. Contents of the invention...

AI Technical Summary

Problems solved by technology

The lifting and lowering of pipes and rods not only takes a lot of time, but also is labor-intensive and has high safety risks

At present, in the process of workover operations, the pulling and throwing between the pipe rod lifting device and the pipe bridge are usually carried by workers manually. The disadvantage of this operation method is that the labor intensity of the workover workers is high, and the handling efficiency Low

Images