According to the characteristics of gravel, inclining, collapsing, leaking and strong abrasiveness in part of fault depression interval in Zhangwu work area, by establishing drillablility and three pressure profiles, the compound drilling tool of high efficient bit, single bend PDM PDC bit and new material & the measures are tested and promoted, which lays the foundation for the fast drilling to form a fast drilling technology series in Zhangwu work area.