Rapid drill stem hoisting adapter

Abstract

The invention relates to a rapid drill stem hoisting adapter comprising a drill stem, a lifting ring, a linkage sliding sleeve, fixture blocks, and a cone. The outer walls of the fixture blocks are arc-shaped and provided with drill stem threads, and the inner walls of the fixture walls are tapered. The diameter of the lower end of each fixture block is large. A tapered body formed by a plurality of fixture blocks is suspended on the linkage sliding sleeve, the lifting ring passes through the linkage sliding sleeve, and the lower part of the lifting ring is connected with the tapered body. The tapered body with a small-diameter upper end and a large-diameter lower end is matched with the inner walls of the fixture blocks, the fixture blocks are connected with the drill stem threads, a damping lock is arranged between the lifting ring and the linkage sliding sleeve, the fixture blocks are expanded by lifting the tapered body of the lifting ring upwards so that the threads on the outer walls of the fixture blocks are connected with the threads on the inner wall of the drill stem to press the lifting ring to enable the tapered body to be apart from the fixture blocks, the fixture blocks are retracted, and the threads on the outer walls of the fixture blocks are separated apart from the threads on the inner wall of the drill stem. Therefore, the rapid drill stem hoisting adapter can be rapidly connected with and separated from the fixture blocks, and has advantages of easiness and convenience for hoisting of the drill stem, high operation efficiency, and low labor intensity of workers. The invention can meet requirements of on-site construction, and has obvious economic benefits.

Description

Technical field [0001] The invention is a tool for lifting and lowering drill pipes in petroleum drilling, and is a quick chuck for lifting and lowering drill pipes. Background technique [0002] In the process of oilfield drilling, the drill pipe that is flat on the ground should be lifted and the drill pipe in the well should be placed on the ground. In this process, a connecting device is required to connect the drill pipe with the traveling block. Currently, wire plugging is used. The male thread is connected with the female thread of the drill rod, the plug is suspended on the traveling block, and then the drill rod is hoisted. The use of the plug to hoist the drill rod requires the thread to be loaded and unloaded. The work is complicated and the labor intensity of the workers is high. The efficiency is low, the construction time is long, and the on-site construction requirements cannot be met. Summary of the invention [0003] The purpose of the present invention is to des...

AI Technical Summary

Problems solved by technology

[0002] In the process of oil field drilling, it is necessary to lift the drill pipe on the ground and put the drill pipe in the well on the ground. In this process, a connecting device is needed to connect the drill pipe to the traveling block. At present, a wire plug is used. The male thread of the drill pipe is connected with the female thread of the drill pipe, the plug is hung on the traveling block, and then the drill pipe is hoisted, and the thread is required to be loaded and unloaded when the drill pipe is hoisted with the plug, which is cumbersome and labor-intensive for workers. Low efficiency, long construction time, unable to meet site construction requirements

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