Abstract: Methods for performing a marine survey of a subterranean formation using a hybrid combination of ocean bottom seismic (“OBS”) receivers, wide towed sources, and moving streamers are described herein. In one aspect, a sail line separation in a crossline direction is determined based on an average streamer separation and number of streamers. An array of OBS receivers are deposited on a surface of a subterranean formation with an OBS receiver separation that is based on the sail line separation. Wide towed sources and streamers are towed above the array of OBS receivers behind a survey vessel that travels sail lines separated by the sail line separation. The wide towed sources may be activated above the array of OBS receivers. Wavefields reflected from the subterranean formation are recorded at the OBS receivers and receivers located in the streamers as seismic data.
Type:
Application
Filed:
September 21, 2023
Publication date:
January 11, 2024
Applicant:
PGS Geophysicai AS
Inventors:
Manuel Beitz, Martin Widmaier, Andrew Long