Invictus Energy has received post-stack migration seismic data for its 2D seismic survey at its Cabora Bassa project in Zimbabwe.
Invictus Energy has received post-stack migration seismic data for its 2D seismic survey at its Cabora Bassa project in Zimbabwe.
The company has received all hydrocarbon post-stack migrations of the CB21 survey data as well as the data from the reprocessing of $30 million legacy Mobil dataset. The delivery of the final comprehensive data set (pre-stack time migrated sections) was scheduled for early February 2022.
Wireless node technology used by Canadian seismic contractor Polaris allowed Invictus to lay parallel listening lines to the seismic lines being recorded at the time of survey. This swath recording technique provides a virtual 3D image of the deeper structures within the survey area.
Quality control of the post-stack migration data has been completed and is already showing significant improvements in the overall seismic data quality, said Invictus. The CB21 Survey data has provided evidence of multiple trap geometry configurations which provides a target rich hydrocarbon environment for the upcoming drilling campaign. As well as improved structural clarity of faults, there are multiple anomalies of interest that have been observed across the Muzurabani prospect.
These multiple anomalies are observed both across faults within the structure and at multiple levels under the prospect. Many additional seismic anomalies are also observed along the Basin Margin fault.
‘These will be subject to close scrutiny when additional products are delivered, which will be key for the analysis of the seismic amplitudes associated with these anomalies,’ said Invictus. ‘Seismic anomalies are difficult to calibrate in undrilled frontier areas as they could be lithological changes, processing challenges, geometric or velocity focusing. However, they can often be indicators for the presence of trapped hydrocarbons. The delineation will guide the optimal well locations for the drilling campaign.’
