
TY  - JOUR
A1  - Al Jabri, Y. 
A1  - Urposevic, M. 
A1  - Kepic, A. 
A1  - Evans, B. 
T1  - Assessing the repeatability of reflection seismic data in the presence of complex near-surface conditions CO2CRC Otway Project, Victoria, Australia
JF  - ASEG Extended Abstracts
JO  - ASEG Extended Abstracts
Y1  - 2009
VL  - 2009
IS  - 1
SP  - 1
EP  - 5
KW  - 
UR  - https://doi.org/10.1071/ASEG2009AB016 
N2  - A depleted Gas Field (Naylor) located in the onshore Otway Basin of Australia (Figure 1) is situated in a tilted fault block structure. After some years of gas production from Naylor-1, the field was abandoned. Subsequently, the field is being used for CO2 sequestration as a demonstration project, and will be used for monitoring the migration of CO2 during the injection process into a sandstone reservoir 300 m down-dip from the monitoring well. Optimum seismic repeatability is critical to the monitoring of the field. In order to assess the relative influences of source types and environmental conditions, a series of repeated 2D seismic test surveys were performed before injection commenced. It was discovered that the absorption of energy in the near surface had much greater effect than anticipated. 
ER  -

