How Geophysics Can Become a Key differentiator for a Field Development Plan with Limited Data

B field is an HP carbonate gas field with limited data; a single exploration well and a legacy 3D seismic data. This field is challenging not only due to limited data availability but also from geological perspective. The field is overlain by an over-pressure shale inducing a very low velocity, thus leads to high depth uncertainty and drilling risk. A tight layer is observed within the carbonate that potential acts as barrier between upper and lower zone. Seismic reflectivity within the carbonate is distorted leading to inaccurate reservoir properties simulation. Thus, to develop this field with its current available data, it is crucial to have a good understanding and application on utilizing on these data. The science behind seismic processing and QI have greatly improved over the last decade. Therefore, it is sensible to revisit on the seismic data. The results from the seismic reprocessing and QI studies are great and it is worthy as minimal budget was spent. Decision making on development well was relatively easy with well defined sweet spot and drilling risk is minimized.