多级金刚石表孕镶钻头在坚硬岩屑砂泥岩互层的应用研究  

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

作　　者：沈立娜 张宜 郭庆斌 阮海龙 吴海霞 李春 SHENLi-na;ZHANG Yi;GUO Qing-bin;RUAN Hal-long;WU Hai-xia;LI Chun(Beijing Institute of Explo ration Engineering,Beijing 100083,China;Chengdu Geotechnical Investigation Institute of Building Materials In dustry,Chengdu Sichuan 610052,China;212Geological Team of Shanxi Provincial Geological Prospecting Bu reau,Changzhi Shanxi 046000,China)

机构地区：[1]北京探矿工程研究所,北京100083 [2]建材成都地质工程勘察院,四川成都610052 [3]山西省地质勘查局二一二地质队,山西长治046000

出　　处：《探矿工程（岩土钻掘工程）》2018年第12期36-39,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：国家重点研发计划资助(编号:2016YFE0202200);国土资源部深部地质钻探技术重点实验室开放基金资助(编号:K201703)

摘　　要：本文针对山西晋城及霍西煤层气预查孔钻探施工中的坚硬岩屑砂泥岩互层钻进效率低的难题,研制了一种多级金刚石表孕镶钻头,对比之前研制的尖齿切削齿复合片钻头以及其他厂家钻头,机械钻速得到明显提高,在该类型地层取得了良好的钻进效果。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.

关 键 词：多级金刚石 钻探工程 金刚石钻头 

分 类 号：P634.41[天文地球—地质矿产勘探]