埕岛油田水淹层测井响应原理及识别

Principle and Identification Method of Logging Response of Water Flooded Sand in Chengdao Oil Field

本文依据油层导电原理和阿尔奇公式建立了埕岛油田水淹层解释的理论基础。在对埕岛油田注入水水性分析后,确定了水淹层的电性变化特征;进行水淹层解释的过程中,根据不同的测井曲线特征分别建立了自然电位基线偏移法、自然电位与电阻率对应分析法、交汇图版法和综合分析法等水淹层解释方法,并在埕岛油田水淹层解释中得到了成功应用,为埕岛油田剩余油饱和度解释奠定了基础。

This paper establishment method of explain water flooded sand in Chengdao oil field base on conductive mechanism of oil sand and Archie formula. Determination eleltric character of water flooded sand after analysis propertied of injection water in Chengdao oil field.established respectively SP log baseline wander method, corresponding analysis method about SP and RT logs, cross-plot plate method and comprehensive analysis method, base on different features about logging curves. These methods successful applied interpreting water flooded sand in Chengdao oil field.