Abstract
Low reservoir maintaining pressure and rapid production rate are prone to occur when natural energy development is deployed in thick lithologic sandstone reservoirs. Water injection development can avoid these situations happening and enhance the development effects. The thick lithologic sandstone reservoir being studied is structured with a dip angle of 10° and therefore the water injection development process is highly affected by gravity differentiation, interlayer permeability heterogeneity and injection-production parameters. In order to improve the development effect, the key influencing factors during water injection should be sorted and optimized. The orthogonal test design method is chosen to investigate the water injection development parameters based on the numerical simulation models. In this study, 8 representative geological and development parameters are selected, 5 values are selected for each parameter and 50 simulation cases are designed to determine the relevance between parameters and the influence of each parameter on the development effect. The results indicates that the main influencing factor influencing water injection in thick sandstone reservoir is injection-production ratio, followed by oil recovery rate, horizontal permeability, dip angle and reservoir thickness. It is believed that this research can direct the water injection development in thick sandstone reservoir.
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Li, Xl., Zheng, Xr., Hu, Sy., Xiao, K., Zhang, Jt. (2021). Theoretical Study on Factors Affecting Water Injection Development in Thick Sandstone Reservoir. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2020. IFEDC 2020. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-0761-5_115
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DOI: https://doi.org/10.1007/978-981-16-0761-5_115
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