date: 2014-04-15T06:32:45Z
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pdf:docinfo:title: Microseismic Monitoring of CO2 Injection at the Penn West Enhanced Oil Recovery Pilot Project, Canada: Implications for Detection of Wellbore Leakage
xmp:CreatorTool: Microsoft® Office Word 2007
dc:description: A passive seismic monitoring campaign was carried out in the frame of a 
CO2-Enhanced Oil Recovery (EOR) pilot project in Alberta, Canada. Our analysis focuses on a two-week period during which prominent downhole pressure fluctuations in the reservoir were accompanied by a leakage of CO2 and CH4 along the monitoring well equipped with an array of short-period borehole geophones. We applied state of the art seismological processing schemes to the continuous seismic waveform recordings. During the analyzed time period we did not find evidence of induced micro-seismicity associated with CO2 injection. Instead, we identified signals related to the leakage of CO2 and CH4, 
in that seven out of the eight geophones show a clearly elevated noise level framing the onset time of leakage along the monitoring well. Our results confirm that micro-seismic monitoring of reservoir treatment can contribute towards improved reservoir monitoring and 
leakage detection.

Keywords: CO2 injection; passive seismic monitoring; induced seismicity; leakage; continuous seismic recordings
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subject: A passive seismic monitoring campaign was carried out in the frame of a 
CO2-Enhanced Oil Recovery (EOR) pilot project in Alberta, Canada. Our analysis focuses on a two-week period during which prominent downhole pressure fluctuations in the reservoir were accompanied by a leakage of CO2 and CH4 along the monitoring well equipped with an array of short-period borehole geophones. We applied state of the art seismological processing schemes to the continuous seismic waveform recordings. During the analyzed time period we did not find evidence of induced micro-seismicity associated with CO2 injection. Instead, we identified signals related to the leakage of CO2 and CH4, 
in that seven out of the eight geophones show a clearly elevated noise level framing the onset time of leakage along the monitoring well. Our results confirm that micro-seismic monitoring of reservoir treatment can contribute towards improved reservoir monitoring and 
leakage detection.

dc:creator: Patricia Martínez-Garzón 1,*, Marco Bohnhoff 1,2, Grzegorz Kwiatek 1, Gonzalo Zambrano-Narváez 3 and Rick Chalaturnyk 3
description: A passive seismic monitoring campaign was carried out in the frame of a 
CO2-Enhanced Oil Recovery (EOR) pilot project in Alberta, Canada. Our analysis focuses on a two-week period during which prominent downhole pressure fluctuations in the reservoir were accompanied by a leakage of CO2 and CH4 along the monitoring well equipped with an array of short-period borehole geophones. We applied state of the art seismological processing schemes to the continuous seismic waveform recordings. During the analyzed time period we did not find evidence of induced micro-seismicity associated with CO2 injection. Instead, we identified signals related to the leakage of CO2 and CH4, 
in that seven out of the eight geophones show a clearly elevated noise level framing the onset time of leakage along the monitoring well. Our results confirm that micro-seismic monitoring of reservoir treatment can contribute towards improved reservoir monitoring and 
leakage detection.

dcterms:created: 2013-09-02T09:17:10Z
Last-Modified: 2014-04-15T06:32:45Z
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title: Microseismic Monitoring of CO2 Injection at the Penn West Enhanced Oil Recovery Pilot Project, Canada: Implications for Detection of Wellbore Leakage
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pdf:docinfo:keywords: CO2 injection; passive seismic monitoring; induced seismicity; leakage; continuous seismic recordings
pdf:docinfo:modified: 2014-04-15T06:32:45Z
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dc:title: Microseismic Monitoring of CO2 Injection at the Penn West Enhanced Oil Recovery Pilot Project, Canada: Implications for Detection of Wellbore Leakage
modified: 2014-04-15T06:32:45Z
cp:subject: A passive seismic monitoring campaign was carried out in the frame of a 
CO2-Enhanced Oil Recovery (EOR) pilot project in Alberta, Canada. Our analysis focuses on a two-week period during which prominent downhole pressure fluctuations in the reservoir were accompanied by a leakage of CO2 and CH4 along the monitoring well equipped with an array of short-period borehole geophones. We applied state of the art seismological processing schemes to the continuous seismic waveform recordings. During the analyzed time period we did not find evidence of induced micro-seismicity associated with CO2 injection. Instead, we identified signals related to the leakage of CO2 and CH4, 
in that seven out of the eight geophones show a clearly elevated noise level framing the onset time of leakage along the monitoring well. Our results confirm that micro-seismic monitoring of reservoir treatment can contribute towards improved reservoir monitoring and 
leakage detection.

pdf:docinfo:subject: A passive seismic monitoring campaign was carried out in the frame of a 
CO2-Enhanced Oil Recovery (EOR) pilot project in Alberta, Canada. Our analysis focuses on a two-week period during which prominent downhole pressure fluctuations in the reservoir were accompanied by a leakage of CO2 and CH4 along the monitoring well equipped with an array of short-period borehole geophones. We applied state of the art seismological processing schemes to the continuous seismic waveform recordings. During the analyzed time period we did not find evidence of induced micro-seismicity associated with CO2 injection. Instead, we identified signals related to the leakage of CO2 and CH4, 
in that seven out of the eight geophones show a clearly elevated noise level framing the onset time of leakage along the monitoring well. Our results confirm that micro-seismic monitoring of reservoir treatment can contribute towards improved reservoir monitoring and 
leakage detection.

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pdf:docinfo:creator: Patricia Martínez-Garzón 1,*, Marco Bohnhoff 1,2, Grzegorz Kwiatek 1, Gonzalo Zambrano-Narváez 3 and Rick Chalaturnyk 3
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creator: Patricia Martínez-Garzón 1,*, Marco Bohnhoff 1,2, Grzegorz Kwiatek 1, Gonzalo Zambrano-Narváez 3 and Rick Chalaturnyk 3
meta:author: Patricia Martínez-Garzón 1,*, Marco Bohnhoff 1,2, Grzegorz Kwiatek 1, Gonzalo Zambrano-Narváez 3 and Rick Chalaturnyk 3
dc:subject: CO2 injection; passive seismic monitoring; induced seismicity; leakage; continuous seismic recordings
meta:creation-date: 2013-09-02T09:17:10Z
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meta:keyword: CO2 injection; passive seismic monitoring; induced seismicity; leakage; continuous seismic recordings
Author: Patricia Martínez-Garzón 1,*, Marco Bohnhoff 1,2, Grzegorz Kwiatek 1, Gonzalo Zambrano-Narváez 3 and Rick Chalaturnyk 3
producer: Microsoft® Office Word 2007
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pdf:docinfo:producer: Microsoft® Office Word 2007
pdf:docinfo:created: 2013-09-02T09:17:10Z