阿尔奇参数实验影响因素分析  

Influential Factors in Archie Parameters Experiment

作　　者：孙建孟[1] 吴金龙[1] 于代国[1] 徐兴松[1] 

机构地区：[1]中国石油大学地球资源与信息学院,山东东营257061

出　　处：《大庆石油地质与开发》2006年第2期39-41,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：结合岩石物理实验资料分析了温度、压力、矿化度、润湿性及驱替方式对阿尔奇参数的影响,这些参数是利用电测井资料评价含油饱和度的重要参数。在实验过程中,必须保证储层条件下的温度、压力、矿化度及润湿性,否则所得到的阿尔奇参数是不准确的。同一块岩心,用注入和驱替润湿相两种方法测得的饱和度指数是不同的。由于阿尔奇参数的频散现象,要想适应各种频率下泥质砂岩储集层解释参数变化的要求,需要进行多频测量,以确定孔隙度指数和饱和度指数。Influence of temperature, pressure, salinity, wettability and displacement mode on Archie parameters has been analyzed with petrophysical property experiments. These parameters are important to determine oil saturation with electric log data. In lab experiments, temperature, pressure, salinity and wettability should be fixed; otherwise the Archie parameters will not be accurate. The oil saturation will be different with injection and displacement wettability methods respectively in the same core. Due to dispersion of Archie parameters, multi-frequency measurement should be conducted to suit interpretation parameters variation of argillaceous sandstone reser-voir with various frequencies, so as to determine porosity exponent and saturation exponent.

关 键 词：孔隙度指数 饱和度指数 温度 压力 矿化度 润湿性 

分 类 号：P631.8[天文地球—地质矿产勘探]