高温高压高含二氧化碳气藏岩石物理参数研究  

Study on Petrophysical Parameters of High Temperature,High Pressure and High Carbon Dioxide Content Gas Reservoir

作　　者：赵军[1] 唐深华 王迪 何胜林 陈一健 卢一凡[1] 

机构地区：[1]西南石油大学地球科学与技术学院,四川成都610500 [2]中石化上海海洋油气分公司勘探开发研究院,上海200120 [3]中海油湛江分公司研究院,广东湛江524057

出　　处：《应用基础与工程科学学报》2016年第3期467-474,共8页Journal of Basic Science and Engineering

基　　金：国家"十二五"重大专项子课题(2011ZX05023-004-02)

摘　　要：岩电参数是分析储层物性和计算储层饱和度的重要参数,其数值与岩石孔隙结构及内部两相流体的分布密切相关,且随温度和压力的变化而变化.而在高温高压或孔隙流体中含有二氧化碳的条件下,岩电参数的变化与一般规律的符合程度依旧存疑.针对上述问题,通过测量与统计二氧化碳、甲烷等流体的密度、纵波速度和电阻率等参数的变化,研究并讨论了溶解二氧化碳对地层水导电性的影响,分析了不同温度、压强及二氧化碳含量条件下岩电参数的变化规律,为含二氧化碳气藏含气饱和度的计算及二氧化碳定性识别和定量评价提供了新的思路.Rock-electro parameters are pretty significant for reservoir physical properties analysis and saturation calculation,which is closely related to pore structure and the internal two-phase fluid distribution and changed with temperature and pressure. However,under the condition of high temperature,high pressure or high carbon dioxide content,the compliance between rock-electro parameters variation and normal regulation is still doubtful. In view of the above problems,based on the measurements and statistics on density,p-wave velocity and resistivity variation of carbon dioxide,methane and other fluid,the effect of dissolved carbon dioxide on electrical conductivity of formation water was studied and discussed,and rock-electro parameters change rule under different temperature,pressure and carbon dioxide content was analyzed,which provides a new thought on carbon dioxide contained gas reservoir saturation and the qualitative identification and quantitative evaluation of carbon dioxide.

关 键 词：高温高压 含二氧化碳气藏 岩电参数 趋势面分析 

分 类 号：P618.13[天文地球—矿床学]