The role of fluid migration system in hydrocarbon accumulation in Maichen Sag, Beibuwan Basin

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Liu, Hongyu^1,2 ; Yang, Jinxiu^3 ; Wu, Feng^2 ; Chen, Wei^2 ; Liu, Qianqian^3

China University of Mining and Technology (Beijing), Beijing

100083, China^1

Exploration and Development Research Institute of SINOPEC, Jiangsu Oilfield Company, Yangzhou

225009, China^2

China University of Petroleum (East China), Research Institute of Unconventional Oil and Gas and Renewable Energy, QingDao

266580, China^3

关键词: Hydrocarbon accumulation;    Hydrocarbon distribution;    Hydrocarbon expulsion;    Hydrocarbon generation;    Hydrocarbon migration;    Hydrocarbon reservoir;    Oil and gas exploration;    Primary migration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/5/052048/pdf
DOI  :  10.1088/1755-1315/121/5/052048

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Fluid migration system is of great significance for hydrocarbon accumulation, including the primary migration and secondary migration. In this paper, the fluid migration system is analysed in Maichen Sag using seismic, well logging and core data. Results show that many factors control the hydrocarbon migration process, including hydrocarbon generation and expulsion period from source rocks, microfractures developed in the source rocks, the connected permeable sand bodies, the vertical faults cutting into/through the source rocks and related fault activity period. The spatial and temporal combination of these factors formed an effective network for hydrocarbon expulsion and accumulation, leading to the hydrocarbon reservoir distribution at present. Generally, a better understanding of the hydrocarbon migration system can explain the present status of hydrocarbon distribution, and help select future target zones for oil and gas exploration.