Factors influencing gas well productivity in fractured tight sandstone reservoir

Abstract There are many factors which influence the absolute open flow potential (AOFP) of gas well. One them is angle between maximum principal stress direction and natural fracture strike in reservoir. In order to find out how influences AOFP A lot data related well productivity 14 wells located reservoir T were collected collated. Influential intensity each factor on before after modification was investigated through grey relation analysis method. Results indicated that governed by 10 factors. The five central influencing initial density, porosity, permeability, elevation geological top surface, saturation, respectively. hydraulically fractured minimum stress, Angle not productivity. Reservoir can greatly improve tight sandstone Natural density strongest AOFP. Minimum one Research results be used guide deployment investment projects