PGS revising offshore N. Sumatra dataset following Timpan gas discovery

June 28, 2023
PGS is reprocessing 2D data offshore North Sumatra to support future exploration in the area.

Offshore staff

OSLO, Norway  PGS is reprocessing 2D data offshore North Sumatra to support future exploration in the area.

The North Sumatra MC2D data rejuvenation project, the company said, will provide fresh insight into one of Indonesia’s emerging hydrocarbon provinces based on Harbour Energy’s deepwater Timpan-1 discovery last year, 150 km offshore.

PGS plans to reprocess 7,700 line km of PSDM data to improve understanding of the history of the basin’s development history and understanding of existing and newly revealed petroleum systems.

North Sumatra MC2D will cover existing discoveries and open blocks, enabling seismic well ties and correlations into frontier areas for improved mapping of play fairways. The data rejuvenation workflows will incorporate knowledge that the company acquired from its North Sumatra MC3D project in the same basin.

Technologies will include 2 ms, high-resolution, broadband processing and depth conversion, based on full waveform inversion (PGS FWI).

Alex Vartan, PGS' vice president of Asia Pacific, said the main goal of the project was “to address the challenges associated with imaging the deeper pre- and syn-rift package, which host both source and reservoir rocks. The higher-resolution imaging will also address challenges linked to fault imaging and hydrocarbon migration pathways.”

6/28/2023