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Application of Three-dimensional Geological Modeling and Numerical Simulation in Exploitation of Fractured Water-Gas Reservoir

ZHANG Yan1,ZHENG Zhi-jun2,LU Gai-xin3,WANG Hong-xing4,PU Hong-qiao5(1.Exploration & Production Research Institute,SWPB,SINOPEC,Chengdu 610081,China;2.Oilfield Engineering Services Company,Southwest Petroleum Bureau,SINOPEC,Mianyang 621000,China;3.Department of Mechanical Engineer,Tianjin Petroleum Vocation and Technology College,Tianjin 301607,China;4.Research Institute of Petroleum Exploration & Development,PetroChina Jilin Oilfield Company,Songyuan 138003,China;5.Department of Electrical Engineering,Chengdu Aviation Vocational and Technical College,Chengdu 610021,China)  
As an example of typical carbonate water-gas reservoir,we discussed the integrated evaluation techniques for fractured-vuggy reservoir numerical simulation of 3-D geological modeling.Firstly,based on geology and logging data,we used the application of 3-D geological modeling to set up the geological model of stratigraphic framework,fault and discrete fracture network,so that the initial static geological model can be built for gas reservoir numerical simulation.Secondly,based on the production performance data,we used the numerical simulation to get the reasonable gas reservoir mode by means of history matching and parameters adjustment.Finally,we got a reasonable development plan on predicting and valuating development indexes of different gas velocity,pressurization mining technique and gas drainage technology.The production practice showed that application of integration technology of gas reservoir evaluation in the fracture water-gas reservoir could realize the different development stages of cooperative management for the complex reservoir and provide reference for adjusting development scheme.
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