Study about Interpretation Models and Algorithm of Water-Flooded Formation Based on Resistivity  

作　　者：WANGYinghui TANDehui WANGQiongfang CAIHongjie 

机构地区：[1]ComputerScienceSchool,ShaanxiNormalUniversity,Xi＇an710062,China [2]FacultyofResourceandEnvironment,NorthWestPetroleumInstitute,NanChong,Sichuan637001,China [3]ChangqingDepartment,ChinaPetroleumLoggingCo.,Ltd,Gaoling710000,China

出　　处：《Chinese Journal of Electronics》2005年第2期239-243,共5页电子学报（英文版）

摘　　要：Many oil fields are developed by water injection in the world, it's difficult to interpret by welllogging information. EPT and C/O identify residual oil saturation or moveable oil, but they are only fit for oil-reservoir with porosity over 20%, and not for borehole. Additionally, Archie model is not completely fit for dynamic but the static oil-reservoir. Therefore, it's more difficult for WF (Water-flooded) oil-zone (dynamic oil-reservoir) with LPP (Low porosity and low permeability) to be interpreted. Resistivity logging series are the dominating tools to WF formation, so it becomes significantly important to research new interpretation models and algorithm based on resistivity well-logging for WF oil-zone with LPP. A set of new interpretation models for WFZ (Water flooded zone) are established according to the “U” type curve from experimentation, as well as according to mathematics analysis. The notable Archie model is only one case of these new models under special conditions. It is most important that these new models are all fit from exploration stage to development stage in oil field. At last, algorithm process and application result of these models are described.

关 键 词：电阻率法测井 油层注水 判读模型 抵抗力 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]