汶川地震科学钻探二号孔取心钻进方法的选择

Selection of Core Drilling Method for WFSD-2 of Wenchuan Earthquake Scientific Drilling Project

摘要:

介绍了汶川地震科学钻探项目二号孔取心钻进方法的选择。针对龙门山断裂带的地层条件，在对现有取心钻进方法进行技术经济评价的基础上，选择顶驱-绳索取心钻进方法作为设计深度3000 m的汶川地震科学钻探二号孔的取心钻进方法。

Abstract:

This article introduces the selection of core drilling method for the second borehole of Wenchuan Earthquake Scientific Drilling Project. According to the formation condition of Longmenshan fault zone and on the basis of technical and economical evaluation on the existing core drilling methods, top-drive and wireline coring method has been selected out as the deep hole coring method of Wenchuan Earthquake Scientific Drilling Project.