Mechanism of diapirism and episodic fluid injections in the Yinggehai Basin
- 期刊名字:中国科学D辑
- 文件大小:
- 论文作者:郝芳,李思田,龚再升,杨甲明
- 作者单位:Department of Geoscience,Basin Research Institute,China National Offshore Oil Corporation
- 更新时间:2023-02-26
- 下载次数:次
The diapirism in the Yinggehai Basin is a combined result of strong overpressure caused by rapid sedimentation of fine-grain sediments and the tensile stress field resulting from right-lateral slip of the boundary-fault. The diapirism showed multiple-stage, episodic nature, and caused intermittent counter-direction onlaps and changes in the thickness of strata. The shallow gas reservoirs in the diapir structural zone displayed obvious inter-reservoir compositional heterogeneities, and their filling history could be divided into 4 stages, with gases injected during different stages having different hydrocarbon gas, CO2 and N2 contents and different stable isotope compositions. The multiple-episode, intermittent activities of the diapirs, multiple-stage, non-continuous injections of fluids, and the transient thermal effect of fluid flow as well as the strong migration fractionation reflected episodic fluid injection and natural gas accumulation.
-
C4烯烃制丙烯催化剂 2023-02-26
-
煤基聚乙醇酸技术进展 2023-02-26
-
生物质能的应用工程 2023-02-26
-
我国甲醇工业现状 2023-02-26
-
JB/T 11699-2013 高处作业吊篮安装、拆卸、使用技术规程 2023-02-26
-
石油化工设备腐蚀与防护参考书十本免费下载,绝版珍藏 2023-02-26
-
四喷嘴水煤浆气化炉工业应用情况简介 2023-02-26
-
Lurgi和ICI低压甲醇合成工艺比较 2023-02-26
-
甲醇制芳烃研究进展 2023-02-26
-
精甲醇及MTO级甲醇精馏工艺技术进展 2023-02-26