摘要
为了克服绳索取心钻头钻进坚硬致密岩层出现的进尺缓慢、钻头寿命短的难题，着重从钻头胎体配方、金刚石参数、钻头水口等方面进行优化设计、试验并生产应用，使研制的绳索取心钻头（S77）具备良好的适应性，钻进坚硬-硬、中～弱研磨性岩层克服了“打滑”现象并延长了钻头的寿命，取得了一定的经济效益。
Optimized design and tests were made on bit matrix formula, diamond parameters and bit nozzle to overcome slow drilling footage and short service life of the wire-line coring bit in hard and compact rock formation, the newly developed bit （S77） , with good adaptability, overcame the drilling ＂sliding＂ in extra-hard to hard and mid to weak-abrasive rock formations.
出处
《探矿工程（岩土钻掘工程）》
2009年第12期65-68,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
绳索取心钻头
胎体配方
金刚石参数
钻头水口
坚硬致密岩层
wire-line coring bit
matrix formula
diamond parameter
bit nozzle
hard and compact rock formation
