Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR024985 |
Porosity-Permeability Relationships in Mudstone from Pore-Scale Fluid Flow Simulations using the Lattice Boltzmann Method | |
Vora, Harsh Biren1; Dugan, Brandon2 | |
2019-08-01 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:8页码:7060-7071 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We model mudstone permeability during consolidation and grain rotation, and during fluid injection by simulating porous media flow using the lattice Boltzmann method. We define the mudstone structure using clay platelet thickness, aspect ratio, orientation, and pore widths. Over the representative range of clay platelet lengths (0.1-3 mu m), aspect ratios (length/thickness = 20-50), and porosities (phi = 0.07-0.80) our permeability results match mudstone datasets well. Homogenous kaolinite and smectite models document a log linear decline in vertical permeability from 8.31 x 10(-1)(5) -6.84 x 10(-12) m(2) at phi = 0.76-0.80 to 6.33 x 10(-19 )-1.30 x 10(-23 )m(2) at phi = 0.14-0.16, showing good correlation with experimental data (R-2 = 0.42 and 0.56).We employ our methodology to predict the permeability of two natural mudstone samples composed of smectite, illite, and chlorite grains. Over phi = 0.32-0.58, the permeability trends of two models replicating the mineralogical composition of the natural mudstone samples match experimental datasets well (R-2 = 0.78 and 0.74). We extend our methodology to evaluate how vertical permeability might evolve during microfracture network growth or macrofracture propagation upon fluid injection in compacted mudstone. Fluid injection results in a permeability increase from 1.02 x 10(-20) m(2) at phi = 0.07 to 2.07 x 10(-16) m(2) at phi = 0.29 for growth of a microfracture network, and from 1.02 x 10(-20 )m(2) at phi = 0.07 to 1.23 x 10(-16) m(2) at phi = 0.32 for macrofracture propagation. Our results suggest that a distributed microfracture network results in greater permeability during fluid injection in compacted mudstones (phi = 0.07-0.32) in comparison to a wide macrofracture. Our modeling approach provides a simple means to estimate permeability during burial and compaction or fluid injection based on knowledge of porosity and mineralogy. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490973700040 |
WOS关键词 | CRITICAL PATH-ANALYSIS ; ANISOTROPIC PERMEABILITY ; MECHANICAL COMPACTION ; PHYSICAL-PROPERTIES ; SIZE DISTRIBUTION ; CLAY ; BARNETT ; TORTUOSITY ; DIAGENESIS ; MINERALS |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185880 |
专题 | 资源环境科学 |
作者单位 | 1.Rice Univ, Dept Earth Environm & Planetary Sci, Houston, TX 77005 USA; 2.Colorado Sch Mines, Dept Geophys, Golden, CO 80401 USA |
推荐引用方式 GB/T 7714 | Vora, Harsh Biren,Dugan, Brandon. Porosity-Permeability Relationships in Mudstone from Pore-Scale Fluid Flow Simulations using the Lattice Boltzmann Method[J]. WATER RESOURCES RESEARCH,2019,55(8):7060-7071. |
APA | Vora, Harsh Biren,&Dugan, Brandon.(2019).Porosity-Permeability Relationships in Mudstone from Pore-Scale Fluid Flow Simulations using the Lattice Boltzmann Method.WATER RESOURCES RESEARCH,55(8),7060-7071. |
MLA | Vora, Harsh Biren,et al."Porosity-Permeability Relationships in Mudstone from Pore-Scale Fluid Flow Simulations using the Lattice Boltzmann Method".WATER RESOURCES RESEARCH 55.8(2019):7060-7071. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论