New PGS 3D surveys and reprocessing of existing data offshore Congo is supporting the Republic of Congo’s promotion of all open blocks, including five blocks in the interior Cuvette basin and ten blocks in the Congo coastal basin.
New PGS 3D surveys and reprocessing of existing data offshore Congo is supporting the Republic of Congo’s promotion of all open blocks, including five blocks in the interior Cuvette basin and ten blocks in the Congo coastal basin. Seven of the coastal basin blocks are offshore and already extensively covered by PGS data.
PGS and SNPC, the Congo national oil company, are planning to acquire a new regional MC3D survey over the shallow-water Congo Shelf area ‘Peu Profund’, to provide extensive new seismic data coverage over this highly prospective and producing area.
‘The new data will enhance pre-salt imaging and improve our knowledge of the post-salt opportunities, unlocking plays and prospects not imaged fully by the existing data,’ Christine Roche, NV manager Africa at PGS, said.
SNPC and PGS are also planning to acquire a new MC3D survey on the Congo Shelf in 2020. The new data will enhance pre-salt imaging and improve knowledge of the post-salt opportunities, unlocking new plays and prospects.
In 2019 PGS reprocessed a large volume of seismic data within the offshore area of the Congo coastal basin. The company used a modern reprocessing flow to produce a single merged dataset, Congo MegaSurveyPlus, significantly upgrading the previous regional coverage.
‘The imaging results have revitalized the entire basin area with an improved and consistent regional geological perspective,’ PGS said. The reprocessed 3D dataset is tied to wells to allow a regional interpretation and identification of prospects, plays and migration paths, it added.
The coastal basin area presents pre-salt plays and rift structures in prolific shallow-water acreage, close to existing infrastructure. Mesozoic salt basins with associated fields and discoveries extend across this area to the present-day onshore.
The Congo MegaSurveyPlus comprises 12 original 3D surveys, all reprocessed from field data using the latest broadband processing techniques to deliver PSDM and prestack volumes and clearer images. Increased bandwidth and signal fidelity will ensure better velocity models and final images that are more reliable, PGS said.
