Fabrication of a three-dimensional simulated reservoir core model based on area projection micro-stereolithography

• Published in: 工程科学学报 Vol. 43; no. 11; pp. 1552 - 1559
• Main Authors: Si-wei MENG, Da-xing SUN, Jia-qing YU, Yi MO, Guang-bin SHAO, Wei-jie XUE, De-kai ZHOU, Li-chen ZHENG
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.11.2021
• Subjects: enhanced oil recovery technology; micro-stereolithography; microspherical accumulation core model; petroleum exploitation; three-dimensional core model
• ISSN: 2095-9389
• DOI: 10.13374/j.issn2095-9389.2020.06.10.001

Petroleum exploitation plays a very important role in national energy security. With continuous exploitation of oil fields in my country, the efficiency of conventional water injection oil production is decreasing year by year. Enhanced oil recovery (EOR) technologies, such as polymer flooding, microbial flooding, micro–nano flooding, and other flooding technologies have been proposed and developed for application. However, the microscopic displacement mechanism and displacement effect of these technologies are still unclear. Current oil displacement research needs to be verified by core displacement experiments. However, the current displacement experiments all use artificial cores, glass etching channels, photoetched microchannels, etc., as the oil displacement environment. These displacement environments are insufficient in terms of oil displacement dimensions and observation phenomena. Due to this, there is an urgent need for a core manufacturing method that is more suitable for laboratory oil displacemen