Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026715 |
Subcore Scale Fluid Flow Behavior in a Sandstone With Cataclastic Deformation Bands | |
Romano, Carla R.1,2; Zahasky, Christopher2; Garing, Charlotte3; Minto, James M.1; Benson, Sally M.4; Shipton, Zoe K.1; Lunn, Rebecca J.1 | |
2020-04-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Scotland; USA |
英文摘要 | Accurate determination of petrophysical and multiphase flow properties in sandstones is necessary for reservoir characterization, for instance for carbon dioxide and hydrogen storage in geological formations or for enhanced oil recovery. Several studies have examined the effect of heterogeneities, such as fractures, bedding planes, and laminae, on core-scale fluid flow. However, the influence of deformation bands that commonly occur in high porosity sandstones is poorly understood. In this study, we consider a core sample of Navajo sandstone characterized by diagonally oriented deformation bands and two laminae perpendicular to the core axis, as determined from micro X-ray computed tomography (micro-CT). Positron emission tomography is used to derive the single phase hydrodynamic properties of the core. A CO2 drainage experiment is conducted in the water-saturated core and imaged with a medical X-ray CT scanner. Medical CT enables CO2 saturation quantification with increasing CO2 injection rate. Experimental results and the accompanying numerical simulations indicate that both the laminae and the deformation bands act as capillary barriers, with the laminae forming weaker capillary barriers than the deformation bands. The deformation bands have lower permeability and porosity due to grain crushing, and a very high capillary entry pressure that inhibits CO2 migration across the bands. At the reservoir scale, deformation bands form conjugate sets and are often present in thick anastomosing clusters that define lozenge-shaped compartments. These findings have important consequences for subsurface fluid flow. For example, the presence of deformation bands may reduce the storage capacity and injectivity in carbon storage reservoirs. Key Points Cataclastic deformation bands strongly influence the fluid velocity field in a single phase core flooding experiment Cataclastic deformation bands produce capillary barriers that severely limit cross flow between host rock compartments The impact of deformation bands, laminae, and experimental boundary conditions are analyzed using numerical simulations |
英文关键词 | deformation bands multiphase fluid flow capillary heterogeneity X-ray computed tomography positron emission tomography |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000538987800007 |
WOS关键词 | RELATIVE PERMEABILITY ; DAMAGE ZONE ; PETROPHYSICAL PROPERTIES ; COMPUTED-TOMOGRAPHY ; CAPILLARY-PRESSURE ; POROUS SANDSTONES ; CO2/WATER SYSTEM ; PORE SCALE ; CO2 ; HETEROGENEITY |
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/280632 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Strathclyde, Dept Civil & Environm Engn, Glasgow, Lanark, Scotland; 2.Univ Wisconsin Madison, Dept Geosci, Madison, WI 53706 USA; 3.Univ Georgia, Dept Geol, Athens, GA 30602 USA; 4.Stanford Univ, Sch Earth Sci, Dept Energy Resources Engn, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Romano, Carla R.,Zahasky, Christopher,Garing, Charlotte,et al. Subcore Scale Fluid Flow Behavior in a Sandstone With Cataclastic Deformation Bands[J]. WATER RESOURCES RESEARCH,2020,56(4). |
APA | Romano, Carla R..,Zahasky, Christopher.,Garing, Charlotte.,Minto, James M..,Benson, Sally M..,...&Lunn, Rebecca J..(2020).Subcore Scale Fluid Flow Behavior in a Sandstone With Cataclastic Deformation Bands.WATER RESOURCES RESEARCH,56(4). |
MLA | Romano, Carla R.,et al."Subcore Scale Fluid Flow Behavior in a Sandstone With Cataclastic Deformation Bands".WATER RESOURCES RESEARCH 56.4(2020). |
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