Approach to Geohazard Assessment Based on 2D/3D Seismic Data on The Pechora Sea Shelf

Abstract

Summary Currently, Oil&Gas industry interests are focused on exploration for new and development of already known deposits within the vast Arctic shelf. The complexity and high cost of offshore surveys in the Arctic region require the application of all existing data with maximum efficiency. Due to the relevance of standard 2D/3D seismic data inclusion for solving engineering and geological problems is increasing. The purpose of this work was methodology development for the integrated 2D/3D seismic data processing and interpretation for seabed, sub-bottom, near-surface, shallow and deep geohazards detection and identification. The shallow water depth in this part of the Pechora Sea was taken into account. The results of detailed site survey were embedded in the interpretation sequence. This technology is relevant at the stage preceding the site survey planning, in order to assess the geological conditions and select optimal area and scope of work.