绿泥石膜对储层孔隙度的影响———以鄂尔多斯盆地M油田延长组2段为例
网络出版日期: 2008-12-15
Influence of chlorite film on reservoir porosity:A case study from the second member of Yanchang Formation in Ordos Basin
Online published: 2008-12-15
陶碧娥 , 傅恒 . 绿泥石膜对储层孔隙度的影响———以鄂尔多斯盆地M油田延长组2段为例[J]. 岩性油气藏, 2008 , 20(4) : 71 -74 . DOI: 10.3969/j.issn.1673-8926.2008.04.013
Chlorite film developed well in the reservoir sandstone in the second member of Triassic Yanchang Formation in Ordos Basin. According to the regional geologic information and core slice observation, it is concluded that chlorite film formed in the early diagenetic stage, and the porosity increased with the increasing of chlorite film content. So chlorite film takes a constructive diagenesis on the reservoir porosity in this area. This effect is manifested mainly in three aspects: repressing the quartz overgrowth, enhancing the mechanical strength of rocks and resistance to compaction, and repressing the pressure solution by occupying the space of carbonate cement.
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