Numerical Simulation Study Of Tight Oil Stimulated Reservoir Volume Fracturing

Stimulated reservoir volume fracturing is a technology of making secondary fracture all around main fracture.By sustained fracturing,secondary fracture is connected with main fracture to be a complex fracturing network system.This technology can improve production and recoverable reserves by increased the contacted area of fracture and substrate,shorten the distance between the oil and gas from the substrate to fracture,improved the overall permeability reservoir capacity,increased the longitudinal available on small reservoir layer.Recently years,stimulated reservoir volume fracturing is widely used in development unconventional reservoir.For increasing tight oil reservoir fracturing effect,in this paper,a Finite Element mathematical model is established considering starting pressure gradient.Crack model is replaced line unit.Mesh generation is replaced arbitrary triangular units.With the condition of energy exploitation,using single well as the research object,study the effect of fracture parameters of horizontal well after stimulated reservoir volume fracturing.By orthogonal test design and analysis method,research the effect of different fracture half-length,fracture conductivity,fracturing series on daily oil production,daily water production,daily fluid production and cumulative oil production of horizontal well with the condition of horizontal well length is 1000 m,1300m and 1800 m.At last select out the best project,providing guidance for application of using stimulated reservoir volume fracturing to develop tight oil reservoir.