论文部分内容阅读
1979年西德克利斯坦森钻头公司委托克劳斯塔尔大学石油钻采研究所协助研究岩芯钻头的水力学问题,以便改进它的孕镶钻头.现简单介绍一下对这个专题的一些思路和进展情况. 问题的提出随着金刚石合成技术的迅速发展,人造金刚石孕镶钻头不断显示出它的优越性.近年来人们做了不少努力,力求扩大孕镶钻头的应用范围,最大程度地取代天然金刚石表镶钻头.阻碍这一目标实现的主要原因之一是井底排粉和钻头冷却问题.与表镶钻头相比,孕镶钻头一个突出的弱点是金刚石颗粒小、出刃小.钻进过程中岩粉不易排出,钻头不能有效的冷却,随之带来的问题是钻进速度低,容易烧钻.目前常用孕镶钻头的
In 1979, West Kristian Steinsen Drilling Company commissioned the University of Claudius Petroleum Drilling and Mines Research Institute to assist in the study of the hydraulic problems of core drills in order to improve their impregnated drill bits. Here is a brief overview of some of the ideas on this topic And the progress of the problem raised With the rapid development of diamond synthesis technology, artificial diamond impregnated drill continued to show its superiority in recent years, people have done a lot of effort and strive to expand the scope of application of pregnant drill bits, the largest To replace the degree of natural diamond table inlaid bit.This one obstacle to achieve this goal is one of the main reasons for bottom discharge powder and bit cooling issues.Compared with the watch inlaid bit, pregnant drill bits a prominent weakness is the small diamond particles , A small blade.Drilled rock powder is not easy to discharge process, the drill can not be effectively cooled, the ensuing problems is low drilling speed, easy to burn the drill.