中国石油大学学报（自然科学版）2011，Vol.35Issue(5)：6-13,8.DOI:10.3969/j.issn.1673-5005.2011.05.002
东营凹陷民丰北带古近系沙三段成岩演化及其对储层物性的影响
Diagenetic evolution of Es3 reservoir and its influence on property in the northern Minfeng sub-sag of Dongying sag
摘要
Abstract
Through the analysis of lots of rock thin sections of Es3 formation in the northern Minfeng sub-sag of Dongying sag, combined with the homogenization temperature analysis of fluid-inclusion and burial history, the process of diagenetic evolution and its influence on the reservoir property were studied. The diagenetic sequence is: from the beginning of the deposition of Es, to 38 Ma ago, the main type of diagenesis is compaction; from 38 to 32 Ma ago, the first phase of acid dissolution; from 32 to 25 Ma ago, quartz dissolution/ carbonate cementation and the first phase of hydrocarbon filling; from 25 to about 2 Ma ago, the second phase of acid dissolution and hydrocarbon filling; about 2 Ma ago, the later carbonate cementation; from 2 Ma ago until now, the third phase of acid dissolution and hydrocarbon filling. Among them,compaction, carbonate cementation , acid dissolution and former hydrocarbon filling exert the most important effect on the evolution of reservoir physical property. The first phase of hydrocarbon filling occurred in the early and medium stage of carbonate cementation, which hindered the carbonate cementation, and the porosity would be preserved. If hydrocarbon filling didn't occur or the hydrocarbon filling was not enough, carbonate cementation would be intensive, and the property would be poor.关键词
成岩演化/沙三段/民丰北带/东营凹陷Key words
diagenesis evolution/ Es3/ north of Minfeng sub-sag/ Dongying sag分类
能源科技引用本文复制引用
操应长,陈林,王艳忠,隋风贵..东营凹陷民丰北带古近系沙三段成岩演化及其对储层物性的影响[J].中国石油大学学报（自然科学版）,2011,35(5):6-13,8.基金项目
国家油气重大专项课题(2008ZX05051-02) （2008ZX05051-02）
国家自然科学基金项目(L40972080) （L40972080）
