摘要
阿尔奇公式自提出以来,一直被广泛应用于测井饱和度解释领域,并取得了卓越的成果。针对特低渗透储层孔隙结构复杂、胶结程度高、孔隙曲折程度难以掌握等特点,直接利用阿尔奇公式计算含水饱和度有较大误差。通过调研大量文献以及对现场岩心资料的分析,将渗透率引入阿尔奇公式后对其进行修正,建立了适用于特低渗透储层的阿尔奇公式,同时得到了适合特低渗透储层的胶结指数与导电系数,探讨了特低渗透储层特性对岩电参数以及地层因素的影响。这为阿尔奇公式在测井饱和度解释方面的应用做出了更大范围的推广,使其在特低渗透储层的解释方面更为精准。
The Archie formula has been widely used in the field of log saturation interpretation since it was put forward and has achieved remarkable results. It is the foundation of quantitative calculation of oil saturation with well log data. However,the experimental research is done under the indoorconditions of high porosity and high permeability rock sample,for the characteristics of low permeability reservoir,such as complex pore structure,high degree of cementation,and the difficulty in grasping the degree of pore tortuosity,using of Archie formula directly to calculate water saturation may make a larger error. The author madea large number of literature research,as well as the analysis of core data,deformed the Archie formula after introduced the permeability into the it,and finally established the Archie formula for extra-low permeability reservoir,and obtained the cementation index and conductivity of the extra-low permeability reservoir. In addition,the author discussed the influence of pore structure on rock electrical parameters and formation factors. This makes the Archie formula a widely use in the interpretation of logging reservoir saturation,and the calculation results of Archie＇s in extra-low permeability reservoir more accurately.
出处
《重庆理工大学学报（自然科学）》
CAS
2017年第10期128-133,共6页
Journal of Chongqing University of Technology：Natural Science
基金
中国石油科技创新基金资助项目(2016D-5007-0212)
东北石油大学研究生创新基金资助项目"基于拟海底反射层条件水合物有效开发方式研究"
关键词
特低渗透
胶结指数
阿尔奇公式
地层因素
extra low permeability
cementation index
archie formula
formation factor
