Horizontal well productivity analysis with hydraulic fractures for close sand reservoir

Aiming at the complexity and multiple flow forms in fractured horizontal well for close sand reservoir,based on the previous work,by using wellbore-reservoir coupled mode,considering starting pressure gradient and stress sensitivity,the production flormula for horizontal well with hydraulic fractures in close sand reservoir has been established in this paper.The research results show that the effect of starting pressure gradient and stress sensitivity for horizontal well productivity is sensitive.Calculation results obtianed from examples show that relative error of productivity prediction calcultated through the model is small.The model can provide guidance for the horizontal well production.