陈泉键;张哨楠;白晓亮;丁晓琪;

• 1:西南石油大学地球科学与技术学院

• 2:中国石油西南油气田分公司勘探开发研究院

• 3:成都理工大学能源学院

摘要(Abstract)：

针对鄂尔多斯盆地大牛地气田马五1+2段储层致密、岩溶作用强烈、非均质性强,直井单井产能低,调整为水平井开采后获得良好的开发前景等特点,根据岩心、物性及薄片观察等资料,分析马五1+2段水平井钻遇试气成果,储层发育及录井气测异常厚度等对不同微古地貌的水平井导眼段及水平井进行测井解释,识别并确定水平段储集类型,研究岩溶微古地貌对岩溶白云岩储层控制作用。结果表明:研究区岩溶相带发育明显,纵向上岩溶储层受岩溶相带的控制明显,马五13、马五14、马五2处于垂直渗流带,整体受泥质充填较弱,储集性能较好,为储集有利相带;岩溶斜坡微古地貌处地表水的渗滤作用表现明显,白云岩发育大量的溶蚀孔隙、溶缝,泥质充填程度较弱,具有良好的储集性能,是古岩溶储层发育和气藏形成的有利部位;岩溶高地储集空间易被溶蚀、充填,故物性与斜坡相比较差。

关键词(KeyWords)：奥陶系;大牛地气田;岩溶;水平井;微古地貌;储层控制

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05045-01-03)

作者(Author):陈泉键;张哨楠;白晓亮;丁晓琪;

Email:

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