DOI: 10.1306/04231514122
Scopus记录号: 2-s2.0-84947417312
论文题名: Quantifying flow in variably wet microporous carbonates using object-based geological modeling and both lattice-Boltzmann and pore-network fluid flow simulations
作者: Harland S.R. ; Wood R.A. ; Curtis A. ; Van Dijke M.I.J. ; Stratford K. ; Jiang Z. ; Kallel W. ; Sorbie K.
刊名: AAPG Bulletin
ISSN: 0149-1453
EISSN: 1558-9183
出版年: 2015
发表日期: 2015
卷: 99, 期: 10 起始页码: 1827
结束页码: 1860
语种: 英语
Scopus关键词: Carbonates
; Microporosity
; Multiphase flow
; Petroleum reservoirs
; Pore size
; Porosity
; Carbonate-hosted
; Geological modeling
; Hydrocarbon reservoir
; Lattice boltzmann
; Model parameters
; Multi-phase flow properties
; Positive correlations
; Residual oil saturation
; Flow of fluids
; computational fluid dynamics
; fluid flow
; micrite
; multiphase flow
; oil field
; permeability
; porosity
; quantitative analysis
; three-dimensional flow
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Micropores can constitute up to 100% of the total porosity within carbonate-hosted hydrocarbon reservoirs, usually existing within micritic fabrics. Here, three-dimensional computational representations of end-point micritic fabrics are produced using a flexible, object-based algorithm to further our understanding of the contribution that micropores make to flow. By methodically altering model parameters, we explore the state space of microporous carbonates, quantifying single and multiphase flow using lattice-Boltzmann and network models. In purely micritic fabrics, average pore radius (ranging from 0.26 to 0.44 μm) was found to have a positive correlation with single-phase permeability (1.7 to 2.7 md, respectively). Similarly, increasing average pore size resulted in decreasing residual oil saturation under both water-wet and 50% fractionally oil-wet states. Permeability was found to increase by an order of magnitude (from 0.6 to 7.5 md) within fabrics of varying total matrix porosity (from 18% to 35%) because of increasing pore size (0.37 to 0.56 μm, respectively), but minimal effect on multiphase flow was observed. Increased pore size due to micrite rounding notably increases permeability in comparison with original rhombic fabrics with the same porosity, but multiphase flow properties are unaffected. Finally, when moldic mesopores are added to a micritic matrix, they impact flow when directly connected. Otherwise, micropores control single-phase permeability magnitude. Importantly, recovery is dependent on both wetting scenario and pore-network homogeneity: under water-wet imbibition, increasing proportions of microporosity yield lower residual oil saturations. Together, these results quantify the importance of micropores in contributing to, or controlling, overall flow and sweep characteristics in such fabrics. © 2015. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947417312&doi=10.1306%2f04231514122&partnerID=40&md5=b76fc30c47eae5369420356f44494e60
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13024
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
Harland S.R.,Wood R.A.,Curtis A.,et al. Quantifying flow in variably wet microporous carbonates using object-based geological modeling and both lattice-Boltzmann and pore-network fluid flow simulations[J]. AAPG Bulletin,2015-01-01,99(10)