Norwegian survey specialist TGS launched a new 3D seismic reprocessing project in April covering offshore acreage available in the ongoing Malaysia Bid Round 2022.

The first stage of this reprocessing project covers a 16,957-square kilometre area, integrating existing 3D seismic data acquired offshore Peninsular Malaysia.

This stage covers MBR 2022 acreage that includes exploration block PM 428 and the Abu Cluster, which is being offered as a late-life asset — one that is considered prime for re-evaluation.

The new data set is intended to allow for improved play mapping and structural understanding, identification of new exploration and carbon capture and storage opportunities, and the revaluation of reserves estimates in late-life assets.

This initial phase, which also covers numerous other oil and gas clusters tied regionally for the first time in modern processed 3D seismic data, is part of a multi-year basin revitalisation initiative awarded by national oil company and industry regulator Petronas.

Thirty-six 3D seismic surveys of varying vintages covering a key part of the Malay basin will be processed through a high-end comprehensive broadband workflow by TGS’ consortium partner DownUnder GeoSolutions (DUG) at its Kuala Lumpur processing centre.

The workflow, which includes FWI, Q-Migration and Q-Tomo, will create a single contiguous 3D volume and “represents the only way oil and gas companies can access a modern regional scale data set to evaluate the Malay basin”, according to TGS.

“In addition to the Peninsular Malaysia Regional 3D seismic reprocessing, TGS, as part of the Sarawak multi-client consortium, is actively acquiring 3D seismic data offshore Sarawak and is committed to supporting Petronas and other E&P companies across Malaysia,” TGS chief executive Kristian Johansen says.

The contractor expects the results of this project, which is supported by industry funding, will stimulate renewed exploration interest in the basin, enabling project expansion with further stages up to a total potential project area of more than 40,000 square kilometres.

Final time and depth-migrated products are expected during the second and third quarters of 2023, although interim products will be available earlier.

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