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Engineering Advances

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Article http://dx.doi.org/10.26855/ea.2024.02.009

Study on Visualization Water Drive Experiment and Mechanism in Bottom Water Reservoir Affected by Seepage Barrier

Dongmei Huang1, Chengchao Yu1, Jun Ni1, Yinglin Luo1, Qiaoliang Zhang1, Yingzhong Yuan2,*, Ziqi Tang2

1CNOOC Zhanjiang Branch, Zhanjiang, Guangdong, China.

2Chongqing Key Laboratory of Complex Oil & Gas Fields Exploration and Development, Chongqing University of Science & Tech-nology, Chongqing, China.

*Corresponding author: Yingzhong Yuan

Published: April 9,2024

Abstract

Considering the geometric configuration of the bottom water reservoir and the contact mode between the bottom water and reservoir, a visualization water drive experiment method for simulating the influence of the seepage barrier in the bottom water reservoir is established. For bottom water drive reservoirs with different positions and properties of seepage barrier, oil and water movement paths are visually observed, also the mechanism and law of water displacing oil are studied. The results indicate that the bottom water reservoir affected by seepage barriers has seepage mechanisms including bottom water coning, bypass flow, and oil water contact uplift. Bottom water coning occurs if without encountering the seepage barrier. If there is a seepage barrier, a bypass flow of bottom water happens, forming residual oil around the seepage barrier. When the seepage barrier is located in the middle of the oil layer on the plane and at the bottom of the oil layer in the vertical direction, the water-cut rises slowly and the water drive effect is good. For seepage barriers with partial permeability, the development effect is better. This study lays a theoretical foundation for analyzing residual oil distribution law and drawing up development adjustment treatments in bottom water reservoirs.

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How to cite this paper

Study on Visualization Water Drive Experiment and Mechanism in Bottom Water Reservoir Affected by Seepage Barrier

How to cite this paper: Dongmei Huang, Chengchao Yu, Jun Ni, Yinglin Luo, Qiaoliang Zhang, Yingzhong Yuan, Ziqi Tang. (2024). Study on Visualization Water Drive Experiment and Mechanism in Bottom Water Reservoir Affected by Seepage Barrier. Engineering Advances4(1), 60-70.

DOI: https://dx.doi.org/10.26855/ea.2024.02.009