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Optimization of Fracturing Parameters of Horizontal Well in Low Permeability Reservoir Based on PEBI Grid

Wang Jijun ,Guo Ping,Yang Yiyi,Wang Xiaodong(State Key Lab. of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan,610500,China) Wang Delong(PetroChina Changqing Oilfield Company Oil Production Plant 1,Xi’an,Shaanxi,716000,China)  
Horizontal well fracturing method is usually applied to increase reservoir productivity in lowpermeability thin layer reservoir development. Due to complex geological conditions and many forms of fault development,horizontal well fracturing fracture parameters play a decisive role in fracturing effect and conventional simulation method of horizontal well fracturing can not describe fracture morphology fully. For this reason,a new unstructured grid—PEBI grid maybe applied to simulate horizontal fracturing well fracture parameters and realize accurate simulation of hydraulic fracture and optimization of fracture parameters. Results of comparison with conventional Cartesian grid refinement methods showthat simulation ofhorizontal fracturingwell fractures byPEBI grid has advantage.
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