沾化凹陷渤南洼陷沙四段成岩史恢复及成岩模式建立

Diagenetic history of Es_4 in Bonan subsag of Zhanhua sag and establishment of diagenetic model

简要介绍了沾化凹陷渤南洼陷地质特征。研究了渤南洼陷沙四段上亚段的成岩作用 ,重点探讨了泥岩和砂岩中粘土矿物对深部储集层的影响。依据胶结物交代关系、压实作用特征、孔隙演化特点、粘土矿物和有机质演化特征 ,恢复其成岩史 。

Geologic characteristic of Bonan subsag in Zhanhua sag is introduced briefly. Diagenesis of upper Es 4 in Bonan subsag is studied. The influence of clay mineral in mudstone and sandstone on deep reservoir is discussed with emphasis. According to cementing matter replacement relation, compaction characteristics, evolution characteristics of clay mineral and organic matter, its diagenetic history is recovered and diagenetic model is established.