Evaluating the effectiveness of induced seismicity mitigation: Numerical modeling of wastewater injection near Greeley, Colorado

Brown, Megan R. M.; Ge, Shemin; Sheehan, Anne F.; Nakai, Jenny S.

doi:10.1002/2017jb014456

i

Evaluating the effectiveness of induced seismicity mitigation: Numerical modeling of wastewater injection near Greeley, Colorado

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2017
By Brown, Megan R. M. ; Ge, Shemin ; Sheehan, Anne F. ; ...

Details

Journal Title:

Journal of Geophysical Research: Solid Earth
Personal Author:

Brown, Megan R. M. ; Ge, Shemin ; Sheehan, Anne F. ; Nakai, Jenny S.
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

Mitigation of injection-induced seismicity in Greeley, Colorado, is based largely on proximity of wastewater disposal wells to seismicity and consists of cementation of the bottom of wells to eliminate connection between the disposal interval and crystalline basement. Brief injection rate reductions followed felt events, but injection rates returned to high levels, >250,000 barrels/month, within 6 months. While brief rate reduction reduces seismicity in the short term, overall seismicity is not reduced. We examine contributions to pore pressure change by injection from 22 wells within 30 km of the center of seismicity. The combined injection rate of seven disposal wells within 15 km of the seismicity (Greeley Wells) is correlatedwith the seismicity rate. We ﬁnd that injection from NGL-C4A, the well previously suspected as the likely
Keywords:

Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science
Source:

Journal of Geophysical Research: Solid Earth, 122(8), 6569-6582
DOI:

https://doi.org/10.1002/2017jb014456
ISSN:

2169-9313 ; 2169-9356
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
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Other
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Library
Main Document Checksum:

urn:sha256:4da3e066a497c7e3ab9773fc7046fa71b74eed4ad885fcb74a712f3df6566b6d
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https://repository.library.noaa.gov/view/noaa/52718/noaa_52718_DS1.pdf
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[PDF - 1.36 MB ]

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