期刊
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
卷 11, 期 2, 页码 703-710出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s13202-020-01056-3
关键词
Shale oil; Nuclear magnetic resonance; Spontaneous imbibition; Pressurized imbibition
资金
- Major National Oil and Gas Project [2017ZX05013-001, 2017ZX05049-005]
- Major Basic Science and Technology Project of China National Petroleum Corporation [2018B-4907]
Imbibition is an important method of oil recovery in shale oil reservoirs, and the impact of energy enhancement on imbibition is not extensively studied. Pressurized imbibition can increase the recovery ratio of fractured shale, while spontaneous imbibition can improve the ultimate recovery ratio of matrix shale.
Imbibition is one of the important methods of oil recovery in shale oil reservoirs. At present, more in-depth studies have been carried out on the fracture system and matrix system, and there are few studies on the effect of energy enhancement on imbibition in shale oil reservoirs. Therefore, based on the study of pressurized imbibition and spontaneous imbibition of shale oil reservoirs in Qianjiang Sag, Jianghan Basin, nuclear magnetic resonance technology was used to quantitatively characterize the production degree of shale and pore recovery contribution under different imbibition modes, and analyze the imbibition mechanism of shale oil reservoirs under the condition of energy enhancement. The experimental results showed that with the increase in shale permeability, the recovery ratio of pressurized imbibition also increased. The rate of pressurized imbibition was higher than spontaneous imbibition, and pressurized imbibition can increase the recovery ratio of fractured shale. Spontaneous imbibition can improve the ultimate recovery ratio of matrix shale. Pressurized imbibition can increase the recovery contribution of macroporous and mesoporous.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据