准噶尔盆地西北缘克-百断裂下盘二叠系砂砾岩储层成岩相研究
网络出版日期: 2010-12-15
基金资助
国家科技重大专项“准噶尔盆地岩性地层油气藏富集规律与目标评价”专题(编号:2008ZX05001-006)资助
Diagenesis facies of Permian sandy conglomerate reservoir in footwall of Kebai Fault in northwestern margin of Junggar Basin
Online published: 2010-12-15
张旭东 . 准噶尔盆地西北缘克-百断裂下盘二叠系砂砾岩储层成岩相研究[J]. 岩性油气藏, 2010 , 22(4) : 43 -51 . DOI: 10.3969/j.issn.1673-8926.2010.04.008
According to core observation, thin section analysis, scanning electron microscope, mud logging and well logging data, the rock type and the diagenesis of Permian sandy conglomerate reservoir in the footwall ofKebai Fault are studied. The results show that the main diagenesis in the study area are compaction, cementation and dissolution. Combined with the diagenesis stage, the Permian sandy conglomerate reservoir is divided into seven diagenetic facies, they are high mature-strong dissolution facies, high mature-strong cementation facies, high mature-middle cementationmiddle dissolution facies, high mature-weak compaction facies, high mature-strong compaction facies, lowmature-weak compaction facies and lowmature-strong compaction facies. Then, the forming conditions, the features, the environment, evolutionary sequence and model of each diagenesis facies are summarized. The reservoir properties of sandy conglomerate of different diagenesis facies are analyzed, and it is suggested that the high mature-strong dissolution facies has the most favorable reservoir properties.
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