苏里格气田储层识别敏感参数分析及应用

Analysis and application of sensitive parameters of reservoir identification in Sulige Gas Field

王俊骏 桂志先 谢晓庆 李旖旎

1．长江大学（武汉）油气资源与勘查技术教育部重点实验室，湖北 武汉 430100 中国石油青海油田公司采油一厂，青海 海西 816400

MOE Key Laboratory of Oil and Gas Resources and Exploration Technology, Yangtze University, Wuhan 430100, China No.1 Oil Production Plant, Qinghai Oilfield Company, PetroChina, Haixi 816400, China

苏里格地区储层段砂岩与泥岩的纵波速度、密度和纵波阻抗等参数相互叠置，造成常规叠后波阻抗反演难以进行储层预测和流体识别，为此，利用测井资料，开展了以地震岩石物理参数分析为基础的叠前储层预测与流体识别可行性研究。结果表明，利用岩石的弹性物理参数能很好地区分砂岩和泥岩；利用储层含气性敏感参数，可进行流体识别。储层含气性敏感参数研究为此工区开展叠前储层预测和流体识别提供了依据。

Because the compressional wave velocity, density and longitudinal wave impedance parameter of reservoir sandstone and mudstone in Sulige Region overlay each other, the post-stack acoustic impedance inversion is difficult to reservoir prediction and fluid identification. Therefore, using the logging data, this paper studies the pre-stack reservoir prediction and fluid identification based on the parametric analysis of seismic rock physics. The results show that the elastic physical parameters can distinguish between sandstone and mudstone, and identify the fluid based on the reservoir or gas sensitive parameters. This study can provide basis for the study of pre-stack reservoir prediction and fluid identification.

10.6056/dkyqt201302010