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《China Petroleum Exploration》 2011-02
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Gas-bearing Evaluation Based on Russell Fluid Factor in Unconsolidated Sandstone

Ma Long1,Shi Qiang2,Xiao Yufeng2,Wang Xiuqin2,Ji Zhiyu2,Liu Fengxin2//1.China University of Geosciences,Beijing 100083;2.PetroChina Research Institute of Petroleum Exploration and Development (Langfang),Langfang City,Hebei Province 065007  
The method for calculating gas saturation based on fluid factor f which was proposed by Russell could be used for gas-bearing evaluation of unconsolidated sandstone reservoirs.Dipole shear sonic imager (DSI) logging could measure P-wave and S-wave velocity accurately in unconsolidated sandstone,and calculate the fluid factor f,combined with conventional logging data.This paper proposes a method of adjustable parameters for unconsolidated sandstone,which could improve the evaluation capacity of the fluid factor f to reservoir fluid.The result of in situ data processing and interpretation is good in agreement with the gas test results in Sanhu Area of Qaidam Basin,and it shows the method of gas-bearing evaluation based on f could improve the accuracy of interpretation in unconsolidated sandstone reservoir.
【Fund】: 国家大型油气田及煤层气开发科技重大专项“中国大型气田形成条件、富集规律及目标评价”项目(2008ZX05007)下属课题“大型气田优质储层形成机理与天然气藏地球物理识别及预测技术”(2008ZX05007-02)
【CateGory Index】: P631.84
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