Effect of dynamic threshold pressure gradient on production performance in water-bearing tight gas reservoir

نویسندگان

چکیده

Water content and distribution have important impacts on gas production in water-bearing tight reservoirs. However, due to the structural chemical heterogeneity of reservoirs, water phase exists various states, which has complicated analyses effects characteristics performance. In this work, is distinguished from immobile mobile states term constrained saturation proposed. It established that can ?ow when driving pressure difference larger than critical difference. A new theoretical model threshold gradient derived incorporate in?uences permeability. On basis, a prediction considering varied obtained, result indicates constant, real capacity reservoir will be weakened. Meanwhile, dynamic supply boundary presented, permeability strong in?uence boundary, whereas impact initial negligible. These ?ndings provide insights into understanding state rate Furthermore, study provides useful guidance ?eld-scale production. Cited as: Zhu, W., Liu, Y., Shi, Zou, G., Zhang, Q., Kong, D. Effect performance reservoir. Advances Geo-Energy Research, 2022, 6(4): 286-295. https://doi.org/10.46690/ager.2022.04.03

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ژورنال

عنوان ژورنال: Advances in geo-energy research

سال: 2022

ISSN: ['2207-9963', '2208-598X']

DOI: https://doi.org/10.46690/ager.2022.04.03