摘要
泥浆钻进的第四系抽水钻孔,强化洗井后,只能部分消除泥浆钻进的影响。尤其在弱含水岩层中,洗井的目的难以达到。即使在强含水岩层中,洗井的效果也只是近似的和相对的。
The mud in a mud drilling and water pumping well drilled through the Quaternary System can be only removed partly as the well is washed intensively. The method of intensive washing is of a little effect especially when the well is met by bad aquifers. And this method is effective approximately and relatively even if on good aquifers within the well.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1992年第6期62-66,共5页
Coal Geology & Exploration
关键词
泥浆
钻孔
洗井
强化
钻探工程
mud drilling
water pumping well
intensive washing to wells
