基于岩石电性参数频散特性的储层参数评价方法  

The evaluation method of reservoir parameters based on the rock’s electrical parameter dispersion properties

作　　者：肖占山 赵云生[2] 赵宝成 李强[1] 胡海涛 邵琨 姚春明 XIAO Zhan-Shan;ZHAO Yun-Sheng;ZHAO Bao-Cheng;LI Qiang;HU Hai-Tao;SHAO Kun;YAO Chun-Ming(CNPC Logging Company Limited Technology Research Institute,Beijing 102206,China;School of Earth Sciences,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]中国石油集团测井有限公司测井技术研究院,北京102206 [2]浙江大学地球科学学院,浙江杭州310027

出　　处：《物探与化探》2019年第5期1105-1110,共6页Geophysical and Geochemical Exploration

摘　　要：基于岩石电性参数频散特性的物理机理,构建了新的岩石电频散特征参数——频散率P,通过模拟油藏条件下的储层岩石和人工岩样对比电频散实验分析,建立起频散率P与饱和度、孔隙度、渗透率、阳离子交换量Qv等储层参数的响应关系。研究表明:频散率P与含水饱和度、孔隙度具有较好的线性关系,频散率P与渗透率、阳离子交换量Qv具有较好的幂律关系。与模值频散率PZ和实部频散率PR相比,相位频散率Pφ和虚部频散率PL能够更好的表征岩石的电频散特征;频散率P和储层参数具有良好的相关性和指示性,可作为电频谱测井的储层评价参数。A new rock electrical dispersion characteristic parameter dispersion rate P is constructed based on physical mechanism of rock electrical parameters dispersion characteristics.By comparing the electric dispersion experimental analysis of reservoir rocks and artificial rock samples under simulated reservoir conditions,the response relationship between the dispersion rate P and the reservoir parameters such as saturation, porosity,permeability and cation exchange capacity Q v is established.The research shows that the dispersion rate P has a good linear relationship with water saturation and porosity.The dispersion rate P has a good power-law relationship with the permeability and cation exchange capacity Q v .Compared with the modulus dispersion rate P Z and the real part dispersion rate P R,the phase dispersion rate P φ and the imaginary part dispersion rate P L can characterize the electrical dispersion of the rock better.The dispersion rate P and reservoir parameters have good correlation and indication,and can be used as reservoir evaluation parameters for resistivity spectrum logging.

关 键 词：频散特性 实验分析 物性参数 激发极化 电频谱测井 

分 类 号：P631[天文地球—地质矿产勘探]