摘要
福建龙永煤田高陂区,普遍存在“硬、脆、碎、漏、塌、斜、涌”等复杂地层,严重困扰着绳索取心钻探。为此,在钻进过程中,根据岩石软硬、进尺、孔径等条件选择不同的钻压、钻速及泵量;针对不同的地层选用不同的冲洗液及堵漏措施。
There are complicated strata of ＂hard,brittle,broken,leakage,caving in,slanting and water gushing ＂commonly existed in Gaopi area,Longyong coalfield.Fujian Province that seriously disturbed wire-line coring drilling.For this reason,during drilling,according to rock hardness,footage and bore digmeter conditions,different bit pressure,drilling rate and pump volume were selected;different drilling fluid and plugging measures were selected direct to different strata.
出处
《中国煤田地质》
2005年第B06期101-102,105,共3页
Coal Geology of China
关键词
绳钻技术
应用研究
高陂煤矿区
wire-line coring technique
applied research
Gaopi coalmine area
