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《Petroleum Geology & Oilfield Deuelopment In Daqing》 2000-06
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A METHOD OF OPTIMIZED DESIGN OF HORIZONTAL WELL LENGTH IN GAS RESERVOIRS

FAN Zi fei,LI Yun juan,JI Shu hong (Petroleum Exploration and Development Science Research Institute of CNPC,Beijing 100083,China)  
This paper deviates a formulae of horizontal well productivity in gas reservoirs.During the process of the deviation,it considers the effect of non Darcy flow and the anisotrophy of gas layers on the productivity of horizontal wells.Then it constructs the flow model within gas reservoirs,flow model within the well bore of horizontal wells and the mathematical model of the optimized length in the horizontal sector.It also considers the effect of frictional resistance damage and flow state in the horizontal sector on the productivity of horizontal well.The method obtained in this paper has a directive significance for the calculation of horizontal well productivity in gas reservoirs and the designation of the length of horizontal sector.
【CateGory Index】: TE3
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