Time-Traveling Through G Stacked Reservoirs: Unleashing 4D Seismic Insights

The G field, located in NW Deepwater Borneo, spans the maritime boundary between Malaysia and Brunei. Its primary challenge arises from an overburden gas cloud that obscures approximately 70% of the field, significantly affecting seismic data quality. The first 4D seismic survey was conducted in 2018 (baseline 2015), followed by a second survey in March 2023 to de-risk Phase-D infill targets. These results have influenced well trajectories optimization, model refinement and unlocking new infill opportunities. This paper discusses our interpretation of the 4D data and its impact on business decisions.