鄂尔多斯盆地苏里格气田东区储层含气物性下限分析

Jiangsu Salt Science & Technology(2021)

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Abstract
鄂尔多斯盆地苏里格气田东区是典型的致密砂岩气藏,具有低压力、低孔、低渗透率的特点,为了解其储层含气物性下限,科学划分有效储层,识别气层和计算储量,对这一区域进行研究分析,得出气藏分布空间和形态取决于砂体展布形态;储层物性致密且非均质,物性的致密性确定了含气饱和度存在差异;含气饱和度与充注动力相关,与大小成正比,充注动力越小,含气物性下限值越大;充注动力越大,含气物性下限值越小;含气物性下限区域储层含氧饱和度极低,与含气物性下限储层距离越远,含气饱和度越高.
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