Research on the application of Multi-stage Surface Set Diamond Bit in Very Hard Rock and Mudstone Interbed

Home > Archive>Volume 45, Issue 12, 2018 >36-39

Research on the application of Multi-stage Surface Set Diamond Bit in Very Hard Rock and Mudstone Interbed
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Affiliation:Beijing Institute of Exploration Engineering,Chengdu Geotechnical Investigation Institute of Building Materials Industry,212 Geological Team of Shanxi Provincial Geological Prospecting Bureau,Beijing Institute of Exploration Engineering,Beijing Institute of Exploration Engineering,Beijing Institute of Exploration Engineering
Clc Number:P634.4
Fund Project:Supported by National Key R&D Program of China (No.2016YFE0202200); Supported by Research Foundation of Key Laboratory of Deep Geodrilling Technology ,Ministry of Land and Resources(No.K201703)

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Abstract:

In this paper, a new multi-stage surface set diamond bit was developed to solve the problem of low drilling efficiency in very hard rock and mudstone interbed in the coal seam gas pre-survey area in Jincheng and Huoxi, Shanxi. Compared with the sharp cutting tooth PDC drill bits previously developed and other manufactures’ drill bits, the ROP has been significantly improved with good drilling results in this area.

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History

Received:April 28,2018
Revised:August 15,2018
Adopted:November 02,2018
Online: December 06,2018
Published:

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