Estimating maximum sustainable injection pressure duringgeological sequestration of CO2 using coupled fluid flow andgeomechanical fault-slip analysis

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This paper demonstrates the use of coupled fluid flow andgeomechanical fault slip (fault reactivation) analysis to estimate themaximum sustainable injection pressure during geological sequestration ofCO2. Two numerical modeling approaches for analyzing faultslip areapplied, one using continuum stress-strain analysis and the other usingdiscrete fault analysis. The results of these two approaches to numericalfault-slip analyses are compared to the results of a more conventionalanalytical fault-slip analysis that assumes simplified reservoirgeometry. It is shown that the simplified analytical fault-slip analysismay lead to either overestimation or underestimation of the maximumsustainable injection pressure because it cannot resolve importantgeometrical factors associated with the injection induced spatialevolution ... continued below

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Rutqvist, J.; Birkholzer, J.; Cappa, F. & Tsang, C.-F. October 17, 2006.

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This paper demonstrates the use of coupled fluid flow andgeomechanical fault slip (fault reactivation) analysis to estimate themaximum sustainable injection pressure during geological sequestration ofCO2. Two numerical modeling approaches for analyzing faultslip areapplied, one using continuum stress-strain analysis and the other usingdiscrete fault analysis. The results of these two approaches to numericalfault-slip analyses are compared to the results of a more conventionalanalytical fault-slip analysis that assumes simplified reservoirgeometry. It is shown that the simplified analytical fault-slip analysismay lead to either overestimation or underestimation of the maximumsustainable injection pressure because it cannot resolve importantgeometrical factors associated with the injection induced spatialevolution of fluid pressure and stress. We conclude that a fully couplednumerical analysis can more accurately account for the spatial evolutionof both insitu stresses and fluid pressure, and therefore results in amore accurate estimation of the maximum sustainable CO2 injectionpressure.

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  • Journal Name: Energy Conversion and Management; Journal Volume: 48; Journal Issue: 6; Related Information: Journal Publication Date: 06/2007

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  • Report No.: LBNL--61786
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 918488
  • Archival Resource Key: ark:/67531/metadc889892

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  • October 17, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 9, 2016, 4:07 p.m.

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Rutqvist, J.; Birkholzer, J.; Cappa, F. & Tsang, C.-F. Estimating maximum sustainable injection pressure duringgeological sequestration of CO2 using coupled fluid flow andgeomechanical fault-slip analysis, article, October 17, 2006; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc889892/: accessed August 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.