Abstract
The Penn West enhanced oil recovery pilot project is located in the Pembina Oil Field in west-central Alberta, Canada, with CO2 injection into the 20 m thick Cretaceous Cardium Formation at a depth of 1650 m below surface. Time-lapse processing of the surface seismic monitoring data collected between March 2005 and March 2007 yielded no significant changes in P-wave seismic amplitudes or traveltimes between monitor and baseline surveys after ∼40,000 t of CO2 had been injected. A small amplitude change in the Cardium Formation and deeper events were detected by a fixed geophone array in an observation well. We conclude that partial or full saturation of the reservoir pore space was restricted to the most permeable sandstone members of the Cardium Formation. The seismic data indicates that no leakage of CO2 has occurred into shallow aquifers.
| Original language | English |
|---|---|
| Pages (from-to) | 2235-2242 |
| Number of pages | 8 |
| Journal | Energy Procedia |
| Volume | 1 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 2009 |
| Externally published | Yes |
Bibliographical note
Funding Information:The Penn West CO2 monitoring project was funded through the Alberta Energy Research Insitute (AERI) of the Province of Alberta, Western Economic Diversification (WED), Natural Resources Canada (NRCan), grants from the Natural Sciences and Engineering Research Council of Canada (NSERC), and support fromPenn West Energy Trust and also from the CREWES Project at the University of Calgary.
Keywords
- CO monitoring
- Fluid subsitution modelling
- Leakage, thin
- Resolution
- Seismic
- Time-lapse
- Vertical seismic profile
ASJC Scopus subject areas
- General Energy
