汶川地震断裂带科学钻探项目WFSD-2孔钻探施工技术

Drilling Technology in WFSD-2 of Wenchuan Earthquake Fault Scientific Drilling Project

摘要:

介绍了WFSD-2孔钻探施工中采用的关键技术，包括：半合管取心技术、活动套管技术、螺杆马达取心技术和钻井液技术，以及发生的几次重大孔内事故的处理过程。

Abstract:

This paper introduces the key drilling technology used in WFSD-2, including half-open core barrel coring technology, moving casing technology, down hole motor coring technique and drilling fluid technology. Several major accident management processes are summarized also.