Drilling rod capable of placing exploration explosive into downhole

Abstract

A drill pipe capable of placing explosives for exploration downhole, including a drill bit, a joint, and an auger drill pipe; the drill bit is composed of a connected part and a working part, the connecting part is a stepped cylinder, and its center is a bottomed circular hole; There is a drill edge on the surface of the joint, and the joint is a hollow cylinder with an internal thread hole on the upper part. The circular hole in the lower part matches the small stepped cylinder at the upper end of the stepped cylinder of the drill joint. At least one helical blade is fixed on the outer circle of the joint. There is at least one driving part on the joint and the corresponding part of the drill bit constitutes a plug joint capable of synchronous rotation; the outer circle of the hollow rod of the auger drill rod has helical blades, the upper and lower ends of the rod body are threaded, and the joint is provided with shackle ribs; The invention has comprehensive functions, can meet the needs of drilling rigs for oil exploration and geological mine drilling in different formations for oil and related geological exploration, and effectively solves the problem of lowering explosives for exploration from the middle of the auger drill pipe after the completion of drilling in the area where the well wall cannot be formed. Requirements, reduce operating costs.

Description

technical field [0001] The invention relates to a working part of a drilling rig used for oil exploration and geological field drilling in deserts and other similar conditions, in particular to a drill pipe capable of placing explosives for exploration underground. Background technique [0002] Drill pipe is a key component of oil exploration and geological mine drilling rigs, and it is a tool for breaking strata and forming well holes. The quality of its various parameters is directly related to the efficiency of the drilling rig and the overall performance of the drilling rig. Drilling with the existing drill bits cannot meet the requirements of lowering the explosives for exploration from the middle of the drill pipe after the completion of drilling in the area where the well wall cannot be formed, which makes the adaptability of the drilling rig low and cannot meet the needs of current petroleum and related geological exploration. [0003] Disclosed in the patent CN8721...

AI Technical Summary

Problems solved by technology

Drilling with the existing drill bits cannot meet the requirements of lowering the explosives for exploration from the middle of the drill pipe after the completion of drilling in the area where the well wall cannot be formed, which makes the adaptability of the drilling rig low and can no longer meet the needs of current petroleum and related geological exploration

[0003] Disclosed in the patent CN87214938U is a kind of "drilling tool without drilling explosives". It has an openable drill bit and a hollow helical drill rod, but the bottom drill bit needs to be opened by tools such as a pressure rod and a blasting rod for dispensing, and the drill bit can be reused. , the gun line is led out of the ground with the help of blasting rods. The operation of this drilling tool is relatively complicated and the production efficiency is low

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