Co-evolution of fracture permeability and friction in rocks from the egs collab experiment 1 site

EGS Collab Team

Co-evolution of fracture permeability and friction in rocks from the egs collab experiment 1 site

EGS Collab Team

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

Fracture permeability is a dynamic property under conditions of varying stress and responds to fluid overpressures applied during hydraulic stimulation. We use samples from the SIGMA-V site (Sanford Underground Research Facility (SURF), SD) to measure the co-evolution of fracture permeability and friction throughout phases of the seismic cycle. This is accomplished via slide-hold-slide and pore pressure stepping experiments completed in double direct shear. Fracture reactivation results in permeability enhancement only after sufficiently long interseismic repose periods. The magnitude of permeability increase from each reactivation, following the long hold periods, is critically dependent on the degree of fracture healing achieved in each pre-slip hold period. Shear dilation and permeability enhancement only results following a threshold repose period. Permeability enhances continuously with each pressure step with the highest permeability increase rate being with the first reactivation event. Our study establishes a direct linkage between fracture permeability and friction evolution throughout the seismic cycle and hydraulic shear, which applies across different fracture surface roughnesses.

Original language	English
State	Published - 2018
Event	52nd U.S. Rock Mechanics/Geomechanics Symposium - Seattle, United States Duration: Jun 17 2018 → Jun 20 2018

Conference

Conference	52nd U.S. Rock Mechanics/Geomechanics Symposium
Country/Territory	United States
City	Seattle
Period	06/17/18 → 06/20/18

Funding

This material was based upon work supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE), Office of Technology Development, Geothermal Technologies Office. The research supporting this work took place in whole or in part at the Sanford Underground Research Facility in Lead, South Dakota. The assistance of the Sanford Underground Research Facility and its personnel in providing physical access and general logistical and technical support is gratefully acknowledged. The assistance of Bill Roggenthen in obtaining samples is gratefully appreciated.

Funders	Funder number
U.S. Department of Energy
Office of Energy Efficiency and Renewable Energy
Office of Technology Development
Geothermal Technologies Office

Cite this

@conference{8eebb3b7d53c4f71b17666645c7a8950,

title = "Co-evolution of fracture permeability and friction in rocks from the egs collab experiment 1 site",

abstract = "Fracture permeability is a dynamic property under conditions of varying stress and responds to fluid overpressures applied during hydraulic stimulation. We use samples from the SIGMA-V site (Sanford Underground Research Facility (SURF), SD) to measure the co-evolution of fracture permeability and friction throughout phases of the seismic cycle. This is accomplished via slide-hold-slide and pore pressure stepping experiments completed in double direct shear. Fracture reactivation results in permeability enhancement only after sufficiently long interseismic repose periods. The magnitude of permeability increase from each reactivation, following the long hold periods, is critically dependent on the degree of fracture healing achieved in each pre-slip hold period. Shear dilation and permeability enhancement only results following a threshold repose period. Permeability enhances continuously with each pressure step with the highest permeability increase rate being with the first reactivation event. Our study establishes a direct linkage between fracture permeability and friction evolution throughout the seismic cycle and hydraulic shear, which applies across different fracture surface roughnesses.",

author = "{EGS Collab Team} and Yildirim, {E. C.} and K. Im and D. Elsworth and J. Ajo-Franklin and Bauer, {S. J.} and T. Baumgartner and K. Beckers and D. Blankenship and A. Bonneville and L. Boyd and Brown, {S. T.} and Burghardt, {J. A.} and T. Chen and Y. Chen and K. Condon and Cook, {P. J.} and Dobson, {P. F.} and T. Doe and Doughty, {C. A.} and J. Feldman and A. Foris and Frash, {L. P.} and Z. Frone and P. Fu and K. Gao and A. Ghassemi and H. Gudmundsdottir and Y. Guglielmi and G. Guthrie and B. Haimson and A. Hawkins and J. Heise and Herrick, {C. G.} and M. Horn and Horne, {R. N.} and J. Horner and M. Hu and H. Huang and L. Huang and M. Ingraham and Johnson, {T. C.} and B. Johnston and S. Karra and K. Kim and King, {D. K.} and T. Kneafsey and H. Knox and J. Knox and M. Maceira and Y. Polsky",

note = "Publisher Copyright: Copyright {\textcopyright} 2018 ARMA, American Rock Mechanics Association.; 52nd U.S. Rock Mechanics/Geomechanics Symposium ; Conference date: 17-06-2018 Through 20-06-2018",

year = "2018",

language = "English",

}

TY - CONF

T1 - Co-evolution of fracture permeability and friction in rocks from the egs collab experiment 1 site

AU - EGS Collab Team

AU - Yildirim, E. C.

AU - Im, K.

AU - Elsworth, D.

AU - Ajo-Franklin, J.

AU - Bauer, S. J.

AU - Baumgartner, T.

AU - Beckers, K.

AU - Blankenship, D.

AU - Bonneville, A.

AU - Boyd, L.

AU - Brown, S. T.

AU - Burghardt, J. A.

AU - Chen, T.

AU - Chen, Y.

AU - Condon, K.

AU - Cook, P. J.

AU - Dobson, P. F.

AU - Doe, T.

AU - Doughty, C. A.

AU - Feldman, J.

AU - Foris, A.

AU - Frash, L. P.

AU - Frone, Z.

AU - Fu, P.

AU - Gao, K.

AU - Ghassemi, A.

AU - Gudmundsdottir, H.

AU - Guglielmi, Y.

AU - Guthrie, G.

AU - Haimson, B.

AU - Hawkins, A.

AU - Heise, J.

AU - Herrick, C. G.

AU - Horn, M.

AU - Horne, R. N.

AU - Horner, J.

AU - Hu, M.

AU - Huang, H.

AU - Huang, L.

AU - Ingraham, M.

AU - Johnson, T. C.

AU - Johnston, B.

AU - Karra, S.

AU - Kim, K.

AU - King, D. K.

AU - Kneafsey, T.

AU - Knox, H.

AU - Knox, J.

AU - Maceira, M.

AU - Polsky, Y.

PY - 2018

Y1 - 2018

N2 - Fracture permeability is a dynamic property under conditions of varying stress and responds to fluid overpressures applied during hydraulic stimulation. We use samples from the SIGMA-V site (Sanford Underground Research Facility (SURF), SD) to measure the co-evolution of fracture permeability and friction throughout phases of the seismic cycle. This is accomplished via slide-hold-slide and pore pressure stepping experiments completed in double direct shear. Fracture reactivation results in permeability enhancement only after sufficiently long interseismic repose periods. The magnitude of permeability increase from each reactivation, following the long hold periods, is critically dependent on the degree of fracture healing achieved in each pre-slip hold period. Shear dilation and permeability enhancement only results following a threshold repose period. Permeability enhances continuously with each pressure step with the highest permeability increase rate being with the first reactivation event. Our study establishes a direct linkage between fracture permeability and friction evolution throughout the seismic cycle and hydraulic shear, which applies across different fracture surface roughnesses.

AB - Fracture permeability is a dynamic property under conditions of varying stress and responds to fluid overpressures applied during hydraulic stimulation. We use samples from the SIGMA-V site (Sanford Underground Research Facility (SURF), SD) to measure the co-evolution of fracture permeability and friction throughout phases of the seismic cycle. This is accomplished via slide-hold-slide and pore pressure stepping experiments completed in double direct shear. Fracture reactivation results in permeability enhancement only after sufficiently long interseismic repose periods. The magnitude of permeability increase from each reactivation, following the long hold periods, is critically dependent on the degree of fracture healing achieved in each pre-slip hold period. Shear dilation and permeability enhancement only results following a threshold repose period. Permeability enhances continuously with each pressure step with the highest permeability increase rate being with the first reactivation event. Our study establishes a direct linkage between fracture permeability and friction evolution throughout the seismic cycle and hydraulic shear, which applies across different fracture surface roughnesses.

UR - http://www.scopus.com/inward/record.url?scp=85083946206&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85083946206

T2 - 52nd U.S. Rock Mechanics/Geomechanics Symposium

Y2 - 17 June 2018 through 20 June 2018

ER -

Co-evolution of fracture permeability and friction in rocks from the egs collab experiment 1 site

Abstract

Conference

Funding

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