宜昌磷矿北部整装勘查项目深孔复杂地层钻探技术

Complex Formation Drilling Technology for Deep Hole of Integrated Exploration in Northern Yichang Phosphate Rock

摘要:

宜昌磷矿北部整装勘查工程是湖北省大型磷矿资源勘查项目，由于地形复杂，工作量大，施工条件困难，钻孔深度达到1400 m，给钻探组织和施工带来更高的要求。本文就该项目的地质钻探工作进行简要总结，介绍了寒武系和震旦系地层中的钻探施工技术及应用效果。

Abstract:

The integrated exploration engineering in northern Yichang phosphate is a large scale phosphate rock resources exploration project of Hubei Province. Due to the complex formation, heavy workload, difficult construction conditions and 1400m borehole depth, there are higher requirements for drilling construction organizing. In this paper, the geological drilling work of this project is briefly summarized with the analysis on the drilling technology and its application effects in Cambrian and Sinian strata.