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Production method of special mineral prospecting drill rod

A production method and drill pipe technology are applied in the production field of special prospecting drill pipes to achieve the effects of tight connection, reduced damage and improved lubricity

Inactive Publication Date: 2013-04-24
JIANGSU HEXIN PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the caliber of conventional prospecting drill pipes in the world is 60-120mm. Nowadays, many drilling rig contractors are upgrading drilling equipment or manufacturing new drilling rigs. These drilling rigs can drill more than 8m in width. Drilling such a wide well requires a lot of investment. and advanced ultra-deep well drilling technology

Method used

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Experimental program
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Embodiment Construction

[0019] The present invention will be described in further detail below.

[0020] The production method of the special prospecting drill pipe of the present invention comprises the following steps:

[0021] (1) Raw material inspection;

[0022] (2) For rough machining, first remove the oxide skin and black skin from the outer circle of the raw material, and then drill the raw material with a hole diameter of 116-130mm; in this step, the rough machining is advanced to facilitate the subsequent heat treatment effect , so that the overall performance uniformity of raw materials is high;

[0023] (3) heat treatment;

[0024] (4) Hardness testing;

[0025] (5) Mechanical performance test;

[0026] (6) Finishing, further precision machining of the outer circle and inner hole of the semi-finished product;

[0027] (7) Ultrasonic flaw detection;

[0028] (8) Processing the internal and external threads at both ends of the semi-finished product;

[0029] (9) Groove milling, milli...

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Abstract

The invention relates to the technical field of drill rod production methods and specifically relates to a production method of a special mineral prospecting drill rod. The method includes the following steps of raw material checking, rough machining, thermal processing and hardness checking, wherein the step of rough machining includes that oxide scales, black scales and the like of excircles of raw materials are firstly removed, then the raw materials are subjected to hole drilling, and the diameter of a drill hole is 116-130mm. By means of the production method of the special mineral prospecting drill rod, connection among drill rods is tight and firm, recoverable reserve is improved, the exploration drilling period is shortened, the service life of a drill tool is prolonged, and economic and technical norms of mine exploration drilling reach a new record.

Description

technical field [0001] The invention relates to the technical field of drill pipe production methods, in particular to a production method of special prospecting drill pipes. Background technique [0002] Mine drilling is a systematic project, in which special prospecting drill pipe is an important part of drilling. In recent years, the price of gold and diamonds has continued to soar, which has gradually increased the mining volume of gold mines and diamond mines, and the depth and width of mining have gradually increased, from the initial diameter of 3 meters to the current diameter of 7.5 meters. The performance requirements of the tool are more stringent, requiring greater load capacity and torsion resistance. At present, the caliber of conventional prospecting drill pipes in the world is 60-120mm. Nowadays, many drilling rig contractors are upgrading drilling equipment or manufacturing new drilling rigs. These drilling rigs can drill more than 8m in width. Drilling suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 赵钧羡
Owner JIANGSU HEXIN PETROLEUM MACHINERY
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