An evaluation method of volume fracturing effects for vertical wells in low permeability reservoirs

ZHANG Anshun,YANG Zhengming,LI Xiaoshan,XIA Debin,ZHANG Yapu,LUO Yutian,HE Ying,CHEN Ting,ZHAO Xinli

Table 1 Basic parameters of the model.

Parameter name Value Parameter name Value Initial pressure 20 MPa Water com- pressibility 4.35×10-13 MPa-1 Oil volume factor 1.109 m3/m3 Well radius 0.1 m Oil viscosity 0.27 mPa?s Reservoir thickness 10 m Oil compressibility 1×10-29 MPa-1 Formation permeability 5×10-3 μm2 Water volume factor 1.02 m3/m3 Porosity 20% Water viscosity 0.30 mPa?s Water saturation 30%