BluEnergies conducts seismic reprocessing in Harper Basin
BluEnergies, alongwith TTE, are working to identify drillable prospects in blocks from the Harper Basin offshore Liberia as part of their work programme
Ongoing work on the blocks LB-26, LB-30 and LB-31 involves data reprocessing for which TGS and GeoPartners have been deployed. About 6,167 sq kms of 3-D seismic data has been reprocessed by TGS to enhance the seismic character/definition and the AVO content (Direct Hydrocarbon Indicator) of the original 3-D seismic survey.
GeoPartners has deployed a R/V GYRE vessel to conduct within the blocks a Multi-Beam Eco Sounder survey (MBES) comprising an area of 4,045 sq km in water depths ranging from 500 meters to 3,500 meters. Completion of this acquisition is being aimed in so that the integration process can be accelerated to achieve a refined 3-D seismic data interpretation.
The MBES can map underwater terrain, aiding in identifying sea bottom anomalies, supporting the safe selection of future drilling locations. It can identify seabed geomorphologies (pockmarks, mud volcanoes, faults, etc.) and the presence of anomalous features (carbonates, outcrops, bacterial mats, etc.). This special survey can perform water column imaging for the detection of anomalies related to seepage of hydrocarbons through the sea bottom.
Seabed Geochemical Sampling is conducted through piston coring to collect evidence of migrated mature hydrocarbons (detection of fluorescent/natural oil compounds, hydrocarbon chromatography, thermogenic origin, etc.).
Sergio Laura, BluEnergies’ Vice President of Exploration, said, “The West Africa Transform Margin, where the Harper basin is located, and its conjugate South American Margin are regions where basin floor fan plays are being actively and successfully explored, developed and produced. The recent, hectic activity by major oil companies in securing licenses for deepwater acreage along the entire Africa west margin is confirmation that the early move by BluEnergies in the Harper basin (2023) was a valid one. The Jubilee field in Ghana, the Venus field in Namibia, and the recent discoveries offshore Cote d’Ivoire have proven the significance of basin floor fan plays along the African margin.”