碳酸盐岩储层流体识别因子分析

英文篇名：Analysis on the identification factors of thecarbonate rock reservoir fluid
中文刊名：油气地球物理
英文刊名：Petroleum Geophysics
作者：许平 ; 雷芬丽 ; 文晓涛 ; 贺振华
英文作者：XU Ping(Information Engineering Institute of Chengdu Uni-versity of Technology ; Chengdu 610059 ; China)
中文关键词：碳酸盐岩 ; 流体识别 ; 识别因子 ; 灵敏度分析
英文关键词：carbonate rock ; fluid identification ; identificationfactor and sensitivity analysis
出版日期：2010-10-26
机构：成都理工大学信息工程学院;成都理工大学油气藏地质与开发工程国家重点实验室;
年：2010
期：04
出版单位：油气地球物理

摘要

应用地震资料识别地层中的流体是储层预测的一项重要内容。对地层中流体的识别是通过流体识别因子实现的。依据地震剖面识别储集层中的油、气、水层所使用的流体识别因子是由纵横波速度和介质密度或其函数构成,主要函数有纵横波阻抗、纵横波速度比、泊松比等,其均为基于纵横波速度和介质密度对流体响应的差异而构建的。本文对常用流体识别因子进行了分析和总结,提出了一个高灵敏度流体识别因子。在基于模型的基础上分析比较了不同识别因子对碳酸盐岩储层的识别能力。实际应用结果表明,与其他流体识别因子相比,该因子对流体的识别具有更高的灵敏度。
Using seismic data to identify the fluid in a layer is amajor component of the reservoir prediction.The identifica-tion of the fluid in a layer is realized by fluid identificationfactors.The fluid identification factors,which are used to identify the oil,gas and water layer in a reservoir according toseismic section,are consisted of P and S wave velocity andmedium density or their functions,the functions are mainly Pand S wave impedance,P and S wave velocity ratio and Pois-son ratio etc,They all formed based on the differences of the Pand S wave velocity to the fluid answerback.The paper ana-lyzed the normal fluid identification factors and presented ahigh sensitive fluid identification factor.It analyzed and com-pared the identification ability of the different identificationfactors for carbonate rock reservoirs.The actual applied resultshowed that this factor has higher sensitivity to identify thefluids compared with other fluid identification factors.

引文

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