Rotary bypass circulation joint

Abstract

The invention relates to a rotary bypass circulating joint, and belongs to equipment in the petroleum field. The rotary bypass circulating joint consists of a three-way joint and a lower joint, a water hole vertically penetrating through the three-way joint is formed in the center in the three-way joint, a side joint communicating with the water hole is arranged at the upper end of the outer wallof the three-way joint, threads are arranged on the inner wall of the upper end of the water hole, and a shoulder is arranged at the lower end of the water hole; the upper end of the lower joint is connected to the lower end inside the water hole in an inserted mode, the bottom of the three-way joint is located at the reducing position of the lower joint, and the shoulder is located at the top endof the lower joint; the inner wall of the lower end of the shoulder and the outer wall of the upper end of the lower joint are provided with an annular groove and a semicircular annular groove correspondingly, wherein the annular groove and the semicircular annular groove are opposite; and one or more balls matched with an annular space are arranged in an annular space formed between the annulargroove and the semicircular annular groove, the outer wall, opposite to the annular groove, of the three-way joint is provided with a through screwed plug hole, and a screwed plug is arranged at the screwed plug hole. The rotary bypass circulating joint is of a ball-hanging type, and when the rotary bypass circulating joint is used, the rotary drill rod bypass circulating joint only needs to be rotated by hand, so that the rotary bypass circulating joint is conveniently connected with other circulating equipment.

Description

technical field [0001] The invention belongs to equipment in the petroleum field, in particular to a rotary bypass circulation joint. Background technique [0002] At present, in the process of oil drilling and production, the rotation angle of the bypass joint after the drill pipe bypass circulation joint is connected to the lower drilling tool is uncertain. The equipment is connected to each other, which is not only inconvenient to operate and low in efficiency, which affects the drilling efficiency, but also easily leads to the emergence of complex underground mines, which brings inconvenience to subsequent operations. Contents of the invention [0003] The present invention aims to overcome the deficiencies of the prior art, and provides a rotary bypass circulation joint. [0004] The rotary bypass circulation joint of the present invention is composed of a tee joint and a lower joint. A water eye vertically penetrating through the tee joint is provided at the center ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of oil drilling and production, the rotation angle of the bypass joint after the drill pipe bypass circulation joint is connected to the lower drilling tool is uncertain. The equipment is connected to each other, which not only makes the operation inconvenient and the efficiency is low, which affects the drilling efficiency, but also easily leads to the emergence of complex underground mines, which brings inconvenience to subsequent operations.

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