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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
Email:
cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
CN 51-1183/TE

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Numerical Simulation of Factors Affecting Water-flooding in High Water-cut Stage

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Key Words： High water-cut stage； Water flooding status； Multiple of water washing； Multiple of water injection

Abstract：Introduced is the conception of multiple of water washing and ratio of water injection volume and porosity volume and applied is numerical simulation to research factors that affect water flooding status in high water-cut stage of oil field and analyzed are effect of rhythmicity， multiple of water washing and ratio of water injection volume and porosity volume of Gudong area 7 of high water-cut oil field on water flooding status. For negative rhythm oil reservoir， water-flooding development effect will be better than that of positive rhythm because its permeability distribution is beneficial for flowing downward. The more the multiple of water washing of the oil layer， the smaller the remaining oil distribution and the better the water flooding development effect. Ratio of water injection volume and porosity volume has large effect on recovery percentage in early stage of oil field development. However， the effect will be less significant in high water-cut stage. Proposed are some measures for improving water flooding status and numerical simulation results show that the measures can effectively improve oil field development effect.