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
廊固凹陷河西务构造带沙四段储集层成岩作用特征 a—务27井,3604.95 m,石英两期加大边(正交光),200×;b—务10井,3641 m,石英颗粒间凹凸—缝合线接触(正交光),200×;c—务27井,3496.15 m,硬石膏交代石英加大边(正交光),200×;d—务27井,3496.6 m,铁白云石交代石英加大边(单偏光),200×; e—务9井,3616 m,碳酸盐充填长石溶孔(正交光),200×;f—务101井,3490.8 m,黄铁矿交代碳酸盐胶结物(正交光),200×