Offset VSP for monitoring of the injection of small quantities of CO2 - CO2CRC otway case study
Access Status
Authors
Date
2017Type
Metadata
Show full item recordCitation
Source Title
ISBN
School
Collection
Abstract
Time-lapse seismic methods have become an essential part of monitoring and verification operations for carbon capture and storage (CCS) projects. Within the range of seismic methods, lapse borehole seismic methods have a potential to become the leading technology in on-shore CO2 monitoring due to quiet and stable sensor conditions, and minimal land access issues. In this paper we demonstrate the results of 4D offset vertical seismic profiling (VSP) surveys for detection of small amount of injected carbon dioxide. VSP datasets were acquired as a part of the monitoring program of Stage 2C of the CO2CRC Otway Geosequestration Project (Victoria, Australia). Borehole seismic program included recording data from four VSP offsets before commencement of injection and after injection of 5kt, 10 kt and 15 kt of CO2. The time-lapse analysis of the results shows capabilities of the VSP methodology to detect a small CO2 plume and track its evolution within a geological formation. The results demonstrate the potential of borehole seismic for permanent reservoir monitoring.
Related items
Showing items related by title, author, creator and subject.
-
Keshavarz Faraj Khah, Nasser (2007)Sequestration has been suggested as a solution for resolving the problem of increasing greenhouse gas emissions. CO2 is the major greenhouse gas which results from using fossil fuels for domestic and industrial purposes. ...
-
Pevzner, Roman; Caspari, E.; Gurevich, Boris; Dance, T.; Cinar, Y. (2015)A key objective of stage 2 of the Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) Otway Project is to explore the ability of the seismic reflection method to detect and monitor injection of a small ...
-
Kazemeini, S.; Juhlin, Christopher; Fomel, S. (2010)An important component of any CO2 sequestration project is seismic monitoring for tracking changes in subsurface physical properties such as velocity and density. Reservoir conditions and CO2 injection quantities govern ...