松散地层中井斜对水文钻孔的危害及预防

The Jeopardizing of the Slant of Bore to Hydrographic Bore and Precaution in the Incompact Stratum Layers

通过实例分析井斜是造成诸多水文井孔质量事故甚至报废的直接原因 ,警示人们对井斜所能造成的危害产生足够的关注和重视。并依据多年的实践经验总结出松散地层中井斜产生的多种原因及预防方法 。

The incompact stratum layers exist extensively in China.By analyzing the examples,This paper points out that the slant of bore is the direct reason that causes many hydrographic bore's quality problem and even resulting in the bore's discarding.So enough attention should be paid to the jeopardizing of the slant of bore.Finally,based on our practical experience in the works nerks, author sums up various reason of causing the slant of bore in the incompact stratum layers and methods of preceaution.