An automatic opening and closing type drill pipe damage detection device

Abstract

The invention relates to a drill rod damage detection device, in particular to an automatic open-close type drill rod damage detection device. The automatic open-close type drill rod damage detection device comprises a base, an upper tank cover, an upper tank body, a lower tank body and an opening and closing assembly, wherein the base is fixedly provided with the lower tank body; the lower tank body is movably provided with the upper tank body; the upper tank body is fixedly provided with the upper tank cover; a centering rod is arranged in the middle position of the top part of the upper tank cover through a slide way in a sliding way; the front end of the upper tank body is in an opened shape; edge gear racks are symmetrically arranged at two sides in the upper tank body; a middle gear rack is arranged between the edge gear racks; the opening and closing assembly is arranged at the end heads of the edge gear racks and the middle gear racks. The automatic open-close type drill rod damage detection device disclosed by the invention is simple in structure and high in practicability, and during a working process, detection on drill rod damage can be automatically carried out under the situation that other devices on a platform are not interfered; the problem that drill column damage must be detected by an existing detection device under the situation that drilling is stopped is solved, the working efficiency is effectively increased, and the drill rod damage detection device is particularly suitable for being used for drill rod damage detection.

Description

technical field [0001] The invention relates to a drill pipe damage detection device, in particular to an automatic opening and closing type drill pipe damage detection device. Background technique [0002] During the drilling process, the downhole drill pipe is often subjected to tension, compression, torsion, bending and other stresses. Under the action of these stresses, the surface of the drill pipe is worn, deformed, corroded and so on. If these problems are not discovered in time, after the damage reaches a certain level, accidents such as drill pipe leakage and fracture may occur. After the drill pipe fails, it will directly cause the drilling cycle to become longer, increase the cost, and seriously threaten the lives of workers and cause major safety accidents. With the development of drilling technology, more and more complex wells such as deep wells and horizontal wells are drilled, and the safety of drill pipes is becoming more and more important. [0003] In o...

AI Technical Summary

Problems solved by technology

[0003] In order to prevent the location and degree of drill pipe damage from being detected immediately after the drill pipe is damaged, and to predict the life of the drill pipe, the traditional methods used for drill pipe flaw detection, such as: ultrasonic method, eddy current method, magnetic particle method, penetration method The detection methods such as electromagnetic method and ray method cannot be detected when the drill string is working, and will interfere with other devices on the platform, and the loading and unloading is complicated and time-consuming, and the detection efficiency is low

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