Drilling Technology in WFSD-2 of Wenchuan Earthquake Fault Scientific Drilling Project
Duan Xiao-qing · Exploration Engineering(Rock & Soil Drilling and Tunneling) · 2012
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.