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Reconstruction of blanket sand porosity during hydrocarbon charging in the Jurassic Sangonghe Formation of Block 1 in Central Junggar Basin and its significance
Pages: 486-493
Year: Issue:  4
Journal: Oil & Gas Geology

Keyword:  diagenetic evolutionphysical property reconstructionblanket sandSangonghe FormationJunggar Basin;
Abstract: By using thin section and physical property data and in combination with the burial history and hydrocarbon charging history , this paper studied the diagenetic characteristics of the blanket sand in the hydrocarbon charging period , and established the coupling relationship between reservoir diagenetic sequence and the hydrocarbon charging .The po-rosity of blanket sand during the hydrocarbon charging in the lower 2 nd member of the Jurassic Sangonghe Fornation in Block 1 in central Junggar Basin was quantitatively reconstructed by using the compaction trend and inversion back strip -ping methods respectively .The results show that the blanket sand were shallow buried and had good physical properties during the critical hydrocarbon charging period , thus could be good carrrier beds and reservoirs .The blanket sand played a critical role in hydrocarbon transportation and the study area has great exploration potential .
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