The Seep Hunting Team at CGG Satellite Mapping have undertaken a detailed study of the archive of satellite SAR (Synthetic Aperture Radar) data and multispectral optical imagery offshore Newfoundland, covering the Mesozoic St. Anthony, Orphan, and circum-Grand Banks sedimentary basins. This study not only includes the site of the current NL-23 licensing round, but also bp's high impact Ephesus well that was spud last week. Given the vast area on offer and the frontier nature of the region, offshore oil seepage hunting remains an excellent method for establishing petroleum system existence.

This animation shows temporally repeating seepage slicks observed offshore Newfoundland. The close spatial repetition in deep water (3 km), paired occurrences, and curved nature are indicative of natural oil seepage; all the more interesting as these slicks are located more than 400 km from the current discoveries. 

The key to unlocking the slick distribution across this area was targeting weather compliant scenes acquired in the summer months when variations in met ocean conditions lead to increased seepage activity, albeit these events are transient in nature. We utilize a unique detection technique that involves advanced processing and expert interpretation of Earth Observation (EO) data that enables confident identification and categorization of slicks on the ocean surface.

Paired seepage slicks drifting against the natural film in the region. Image © CGG, Contains modified Copernicus Sentinel data, 2022.

For more information on this site and the rest of our Canada dataset and its key deliverables, please get in touch with our Seep Hunting Team.

Telephone: +44 (0)1732 865023
LinkedIn: CGG Satellite Mapping
Twitter: @CGGsatellite