Articles | Volume 11, issue 4
Research article
22 Jul 2020
Research article |  | 22 Jul 2020

Stress field orientation controls on fault leakage at a natural CO2 reservoir

Johannes M. Miocic, Gareth Johnson, and Stuart M. V. Gilfillan


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Johannes Miocic on behalf of the Authors (22 May 2020)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (12 Jun 2020) by Peter Eichhubl
AR by Lorena Grabowski on behalf of the Authors (26 Jun 2020)  Author's response
ED: Publish as is (26 Jun 2020) by Peter Eichhubl
ED: Publish as is (26 Jun 2020) by Federico Rossetti(Executive Editor)
Short summary
At the St. Johns Dome, Arizona, CO2 naturally occurs in the subsurface, but there are travertine rocks on the surface which are an expression of CO2 leakage to the surface. These travertine deposits occur along faults, zones where the rock layers are fractured and displaced. In our research, we use geomechanical analysis to show that the CO2 leakage occurs at points where the faults are likely to be permeable due to the orientation of the geological stress field in the subsurface.