大牛地气田储层物性特征分析

The reservoir property in Daniudi gas field,Ordos Basin,China

大牛地气田主要目的层段储层的五性特征之间存在着一定内在的联系,其中岩性特征起着重要作用;油藏类型为碎屑砂岩油藏,总体表现为孔隙度低、渗透率低;由于沉积微相存在的差异,不同层位、气层组的储层具有不同的储层特征。

There is a certain internal relationship between the five characteristics of the reservoirs in the main target intervals of the Daniudi gas field, among which the lithology characteristics play an important role. The reservoir type is clastic sandstone reservoirs, and the overall performance is low porosity and low permeability. Due to differences in sedimentary microfacies, reservoirs with different horizons and gas groups have different reservoir characteristics.