Small Annulus Cementing Technology in the Hole WFSD-1 of Wenchuan Earthquake Fault Scientific Drilling Project

Abstract:

This article discussed the small annulus cementing technology, which was used for the hole of WFSD-1 of Wenchuan earthquake fault scientific drilling project in broken formation and fault gouge tight hole and introduced how to determine cementing parameters by combining the mud circulation pressure drop during test casing with the maximum bearing pressure of mud pump.