金雪英;

• 1:大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

针对徐家围子断陷沙河子组地层岩性复杂、非均质性强、岩性识别精度较低的现状,根据取心、黏土、薄片分析等资料,利用岩心刻度测井资料,将沙河子组岩性归类:首先,由岩石成分分析各类岩性的常规测井响应特征,建立解释图版;然后,采用电导率异常对比法,利用Bortex模块从电成像测井资料中提取能够定量表征地层砾石含量的结构指示参数;最后,利用常规测井和成像测井,选择对岩性反映敏感的测井参数,建立"成分加结构"主成分分析的岩性识别方法,实现岩性计算机自动识别.研究区10口井的岩性解释结果表明,经过32个取心段岩性验证,岩性识别符合率为90.6%.该方法不但解决成像测井定量识别岩性的难题,而且提高沙河子组地层岩性解释的精度和效率,为储层测井评价奠定基础.

关键词(KeyWords)：砂砾岩;岩性识别;电成像测井;砾石含量;主成分分析

Abstract:

Keywords:

基金项目(Foundation):国家重点基础研究发展计划(973计划)项目(2009CB219300)

作者(Author):金雪英;

Email:

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