Drilling Technology in Zhunye 2 Shale Gas Investigation Well and the Discussion

Abstract:

Zhunye 2 is one of the first constructed shale gas investigation wells of Xinjiang land and resources system, which was designed for 1700m in depth and completed at the depth of 1617.18m, the coring recovery is 100% at sampling section. The engineering quality fully meets the geological requirements with good gas production. The paper introduces the construction technologies used in Zhunye 2 about drilling equipments selection basis, casing program, coring tools, drill bit application, drilling technical parameters and drilling fluid selection. Some necessary discussions are carried out on the issues of technology and safe construction.