Hydraulic drive telescopic downhole tool running device of horizontal well

Abstract

The invention relates to a hydraulic drive telescopic downhole tool running device of a horizontal well, which is used for running in a pipeline in the horizontal well in well drilling of oil and gas fields. The invention solves the problem of downhole tool running in the horizontal well. The technical scheme of the invention is as follows: a cable is connected with a hydraulic power station through a cable connector, and the other end of the cable is connected with a motor; the hydraulic power station is connected with a rear centering mechanism, one end of a centering arm a is fixed on a running device, the other end of the centering arm a is articulated with a centering wheel a and a centering wheel b, and the other side of the centering arm b is connected with a sliding block a; the rear centering mechanism is connected with a shell of a rear locking mechanism; a locking arm a is articulated with a locking slip a and a locking arm b; the rear locking mechanism consists of a locking slip and a locking arm and is connected with a telescopic mechanism; and the front locking mechanism and the rear locking mechanism have same structure, and the front centering mechanism and the rear centering mechanism have same structure. The hydraulic drive telescopic downhole tool running device disclosed by the invention has simple mechanical system mechanism, reliable hydraulic system, high efficiency and large drive force, can realize bidirectional climbing and can reversely run for jam releasing when meeting a jam downhole.

Description

technical field [0001] The invention relates to a hydraulically driven telescopic horizontal well downhole sending device used for running in a pipeline of a horizontal well in oil and gas field drilling and sending downhole tools and instruments into the horizontal section. technical background [0002] In recent years, due to the unique advantages of using horizontal wells to develop oil and gas reservoirs, it has been more and more widely used. However, in the development of horizontal wells, there are many problems to be solved. Among them, sending downhole operation instruments of horizontal wells into the horizontal section of horizontal wells is a typical problem. In horizontal wells, only external force is used. [0003] To make the downhole tool run in the horizontal section by means of external force, it is necessary to design a special device capable of crawling in the horizontal well pipeline. Because there may be extreme conditions such as tens of megapascals ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is: in order to solve the problem of sending the downhole tool in the horizontal section of the horizontal well, to meet the problem of sending the downhole tool under the large load or the fast feeding of the downhole tool under the small load, a hydraulically driven telescopic Horizontal well downhole tool feeding device

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