An Improved Integrated Numerical Simulation Method to Study Main Controlling Factors of EUR and Optimization of Development Strategy

Gas reservoir numerical simulation is an important method to optimize the development strategy of shale gas reservoirs which has been influenced by multi-stage fracture. The regular fracture network model was used build a conventional simulation, in it difficult show true situation propagation. However, physical parameters not only affect production, but also influence stimulation effect; moreover, quality fracturing effect affects production causes input and out be inaccurate. To solve this problem, process must completed from geology engineering reservoir. main controlling factors are identified with geological such as horizontal stage length, volume fluid, well spacing, allocation, proppant mass. Therefore, on basis integrated hydraulic unstructured grid high-precision paper builds coupled target. Taking four wells platform example, EUR (estimated ultimate recovery) increased 25% after optimization strategy.