冀中坳陷廊固凹陷河西务构造带古近系沙河街组四段储集层孔隙度演化定量研究*
操应长1, 葸克来1, 王艳忠1, 周磊1, 赵贤正2, 金凤鸣2, 崔周旗2, 杨春宇3, 董雄英2

Quantitative research on porosity evolution of reservoirs in the Member 4 of Paleogene Shahejie Formation in Hexiwu structural zone of Langgu sag,Jizhong Depression
Cao Yingchang1, Xi Kelai1, Wang Yanzhong1, Zhou Lei1, Zhao Xianzheng2, Jin Fengming2, Cui Zhouqi2, Yang Chunyu3, Dong Xiongying2
关键成岩作用时期原生孔隙、溶蚀孔隙及胶结物面孔率特征 a—5,Ma至现今;b—黄铁矿胶结前(18.8~5 Ma);c—碳酸盐胶结物溶解前(28.2~18.8 Ma);d—碳酸盐/硬石膏胶结前(40.3~28.2 Ma);e—石英加大前(50.4~40.3 Ma);f—长石溶蚀前 (50.4~40.3 Ma)。样品取自务10井沙四段,深度3466.25 m