摘要
研究了南方煤矿区复杂地层钻进中钻头的磨损机理,研制出了适合于复杂地层钻进的绳索取芯钻头。探讨了电镀钻头内、外径的保径方法。试验钻头在复杂煤矿区不同类型的地层中均取得了显著的钻进效果。
To study on the wear mechanism of drilling bits in drilling complex strata of south coalfields,wehave developed a kind of wireline core drilling bit adaptable to the complex strata.At the same time,we have tak-en an efficient test on keeping the inside and outside diameter size of electroplated diamond bits.This kind ofdrilling bit has obtained evident drilling effect in different types of strata in the complex coalfield.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1993年第3期60-63,共4页
Coal Geology & Exploration
关键词
复杂地层
绳索取芯
金刚石钻头
bad formation drilling
wire line coring
coring bit
diamond bit
