DOI: 10.1002/2013GL058534
论文题名: Rapid porosity and permeability changes of calcareous sandstone due to CO2-enriched brine injection
作者: Lamy-Chappuis B. ; Angus D. ; Fisher Q. ; Grattoni C. ; Yardley B.W.D.
刊名: Geophysical Research Letters
ISSN: 0094-10441
EISSN: 1944-10172
出版年: 2014
卷: 41, 期: 2 起始页码: 399
结束页码: 406
语种: 英语
英文关键词: Carbonates
; CCS
; Dissolution
; Permeability
; Porosity
Scopus关键词: Brines
; Calcite
; Carbonates
; Computerized tomography
; Dissolution
; Injection (oil wells)
; Mechanical permeability
; Oil well flooding
; Petroleum reservoir engineering
; Porosity
; Sandstone
; Water injection
; CCS
; Economic considerations
; Flow through reactors
; Fluid-rock interaction
; Injection parameters
; Permeability change
; Petrophysical properties
; Reservoir storage capacity
; Carbon dioxide
; brine
; carbon dioxide
; carbonate sediment
; dissolution
; flow velocity
; fluid-structure interaction
; permeability
; petrology
; porosity
; reservoir characterization
; sandstone
英文摘要: Reservoir injectivity and storage capacity are the main constraints for geologic CO2 sequestration, subject to safety and economic considerations. Brine acidification following CO2 dissolution leads to fluid-rock interactions that alter porosity and permeability, thereby affecting reservoir storage capacity and injectivity. Thus, we determined how efficiently CO2-enriched brines could dissolve calcite in sandstone cores and how this affects the petrophysical properties. During computerized tomography monitored flow-through reactor experiments, calcite dissolved at a rate largely determined by the rate of acid supply, even at high flow velocities which would be typical near an injection well. The porosity increase was accompanied by a significant increase in rock permeability, larger than that predicted using classical porosity-permeability models. This chemically driven petrophysical change might be optimized using injection parameters to maximize injectivity and storage. ©2013. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84892469787&doi=10.1002%2f2013GL058534&partnerID=40&md5=1ff89e235b13ab72b667f1675ba4c042
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7705
Appears in Collections: 气候减缓与适应
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作者单位: School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Recommended Citation:
Lamy-Chappuis B.,Angus D.,Fisher Q.,et al. Rapid porosity and permeability changes of calcareous sandstone due to CO2-enriched brine injection[J]. Geophysical Research Letters,2014-01-01,41(2).