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SW地区油气层夹层厚度扣除方法及应用

石油实验地质

2012年 34卷第5期

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Title

Research and application of deducting method of interlayer thickness of hydrocarbon reservoir in SW area

作者

刘志霞吴小林

Authors

Liu Zhixia Wu Xiaolin

单位

中国石油化工股份有限公司江苏油田分公司, 江苏扬州 225009

Organization

SINOPEC Jiangsu Oilfield Company, Yangzhou, Jiangsu 225009, China

摘要

在陆相碎屑岩储油层内部非均质比较严重,油层内部常常夹有泥岩、粉砂质泥岩等低阻夹层,有些油层内还有较薄的钙质层条带等高阻夹层,它们不含油或对工业油流没有贡献,在划分油气层有效厚度时应扣除.根据这些夹层在测井曲线上的响应特征,采用微电极和八侧向测井曲线,研究了其对应的扣除方法,使有效厚度划分更加准确,提高了油气储量的计算精度.

Abstract

In land facies detrital reservoirs,mudstones and silty mudstones with low resistance are very common,and sometimes thinner calcareous interlayers with high resistance are also found,resulting in strong nonhomogeneity.Those interlayers are oil free or not contributive to commercial oil and gas flows,hence should be deducted when calculating the effect thickness of reservoir.The deducting method of interlayer thickness has been studied based on micro-electric-log and Laterolog 8,improving the reliability of effective thickness calculation and reserve prediction.

关键词：

夹层厚度; 储量计算; 微电极; 八侧向; 油气层;

Keywords:

interlayer thickness; reserve calculation; microelectrode; Laterolog 8; hydrocarbon reservoir;

基金项目

中国石化江苏油田分公司“瓦状油田E1f3砂岩储层储量参数研究”(DY2004-12)资助

DOI

https://doi.org/10.11781/sysydz201205506