浅析X探区地层水电阻率

Analysis of the Resistivity of Formation Water in X Area

魏锋 王迪 陈敏 陈现

WEI Feng WANG Di CHEN Min CHEN Xian

中国石油化工股份有限公司上海海洋油气分公司勘探开发研究院, 上海 200120

Institute of Exploration and Development, SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China

地层水电阻率是计算储层含水饱和度的一个重要参数。但在油田勘探初期，往往没有水样分析资料，所以如何确定地层水电阻率是一个相对棘手的问题。此文收集了X探区的测井资料，从寻找典型纯水层开始，对不同地质层位纯水层进行分类统计，最后利用PICKETT交会图法确定地层水电阻率的大小，在后期的流体识别中应用效果良好。

The resistivity of formation water is an important parameter for calculation of the reservoir water saturation. However, there are few formation water samples at the early time of the development of an oilfield. Therefore, it is very difficult to determinate the resistivity of formation water. The logging data of exploratory wells in X exploration area are collected in this paper. Starting from searching for typical pure water layers, classification and statistical analysis were conducted for each geologic horizon. Finally, the PICKETT cross plot method is used to determine the resistivity of the formation water. The application results are very good in later fluid property identification.

https://doi.org/10.3969/j.issn.1008-2336.2017.01.069