Mechanism Study of Hydraulic Fracturing of Shale Gas Reservoir

Horizontal wells multistage technology is the key technology to successful development of shale gas,and gradually formed a series to achieve the volume fracturing for the purpose of shale gas technology. The volume fracturing concept subversion of the classical theory of hydraulic fracturing,is a based theory of modern unconventional reservoir fracturing. So far,the of shale gas reservoir and propagation mechanism of network are not perfect. Through a large tri-axial physical simulation hydraulic experiments to simulated process of hydraulic in fractured formation to investigate the influence of natural fractures on hydraulic fracture extended,and analyzes the hydraulic fracture in the formation of this type of expansion mode and its influencing factors.