再制多棱人造金刚石烧结体在石油取芯钻头上的应用  

Block Used for Making Petrolleum Core Bit

作　　者：吉洪章[1] 

机构地区：[1]胜利油田钻井工艺研究院

出　　处：《磨料磨具与磨削》1991年第5期2-4,共3页

摘　　要：硬而破碎地层取芯是石油钻井的一个难题。采用再制多棱人造金刚石烧结体试命的取芯钻头,用于花岗片麻岩地层取得了较好的使用效果。ABSTRACT Coring into hard and friable strata has been difficu-lties during petrolleum drilling. In this paper,a specially shaped multi-lobed PCD block is developed for making core bit, such bit has obtai-ned advantageous effect when used in drilling granite schist strata.Coring into hard and friable strata has been difficulties during petrolleum drilling. In this paper,a specially shaped multi-lobed PCD block is developed for making core bit, such bit has obtained advantageous effect when used in drilling granite schist strata.

关 键 词：金刚石烧结体 取芯钻头 花岗片麻岩 

分 类 号：P634.43[天文地球—地质矿产勘探]