De-risking Drill Decisions - A Case Study on the Benefit of Re-processing Conventionally Acquired Seismic data

Acquiring and processing a new vintage of seismic data can often fall outside the time frame of ongoing field development, In this case, careful and detailed reprocessing of vintage seismic data can be a practical and timely way of de-risking any imminent drilling decisions.

Here we consider one such case study over the Thistle field, in the Northern Sector of the North Sea, demonstrating how contemporary de-ghosting of conventional marine streamer data, combined with refined demultiple techniques and iterative non-parametric tomographic preSDM model building facilitate more reliable well-track planning.