String Rotary Running Tool

Abstract

The invention discloses a rotary setting tool for a tubular column. The rotary setting tool for the tubular column comprises an upper joint provided with an internal thread, wherein the lower end of the upper joint is connected with a connecting body; the external side of the lower end of the connecting body is connected with a spring cylinder; the internal side of the lower end of the connecting body is connected with a spline shaft with an axial key slot; a spring, a thrust ball bearing and an inner sleeve are arranged between the spline shaft and the spring cylinder in sequence from top to bottom; the external side of the lower end of the inner sleeve is connected with an outer sleeve; the internal side of the lower end of the outer sleeve is connected with a spline body; the internal side of the lower end of the spline body is connected with a piston cylinder; a lower mandrel is fixedly arranged on the internal side of the piston cylinder through a shear pin; the external side of the lower mandrel is provided with an axial reversing track with an integrated structure; and a guide pin for fixing a guide seat is arranged in the reversing track. According to the invention, the risk of encountering resistance during setting the tubular column can be reduced, the time consumed due to encountering resistance during setting the tubular column is reduced so as to ensure that the tubular column can be smoothly set in place in drilling and completion operation, and the rotary setting tool for the tubular column is suitable for setting the tubular column in the drilling and completion operation.

Description

technical field [0001] The present invention mainly relates to a tool for assisting pipe string running in, more specifically, relates to a pipe string rotating running tool. Background technique [0002] As high-inclination wells, extended-reach wells, and horizontal wells are more and more widely used, problems such as wellbore friction, pipe string self-weight, and debris bed accumulation are common in the drilling and completion process, resulting in pipe strings being blocked. And the phenomenon of not being able to download normally occurs frequently. In oil and gas production, problems such as huge friction when tripping and tripping, difficulty in feeding the drill, and inappropriate drilling of the drill string have attracted more and more attention. [0003] At present, when complex situations such as sticking occur during casing running and liner operation, it is generally necessary to pull out the casing to connect the well. This method greatly increases the ope...

AI Technical Summary

Problems solved by technology

[0003] At present, when complex situations such as sticking occur during casing running and liner operation, it is generally necessary to pull out the casing and connect the well. This method greatly increases the operation time, thereby reducing the operation timeliness and increasing the operation cost

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