Reviving Legacy Seismic Data with Advanced Processing: A Scalable, Cost-Effective Strategy for CCS Site Evaluation

Carbon capture and storage (CCS) in the North Sea is gaining traction as industries strive to reduce atmospheric CO2 emissions. This study demonstrates how advanced data processing methods and technologies can be leveraged to effectively re-purpose legacy seismic datasets for CCS appraisal, offering a cost-efficient alternative to contemporary data acquisition. Three case studies, including two in the UK Southern North Sea (SNS) and one in the Dutch North Sea, validate the efficacy of these workflows in enhancing overburden resolution, fault imaging, and amplitude-versus-offset (AVO) analysis. By applying innovative reprocessing techniques to existing towed-streamer datasets, these examples highlight the scalability and economic viability of legacy data rejuvenation to support the development of CCS initiatives in the region.