Hybrid ocean bottom seismic receiver and streamer seismic data acquisition using wide towed sources

A method for performing a marine survey of a subterranean formation, the method comprising:

• deploying ocean bottom seismic (“OBS”) receivers in a grid on the subterranean formation with the OBS receivers aligned in a crossline direction and aligned in an inline direction;
• determining a sail line separation in the crossline direction based on a uniform source separation between adjacent pairs of two or more wide towed sources in the cross direction
• towing two or more wide towed sources and streamers above the OBS receivers in the inline direction behind a survey vessel along sail lines separated in the crossline direction by the sail line separation;
• activating the wide towed sources;
• and
• recording wavefields reflected from the subterranean formation at the OBS receivers and receivers located in the streamers as seismic data,
• wherein the OBS receiver separation is greater than the uniform source separation between adjacent sources in the crossline direction of the two or more wide towed sources, and
• wherein the sail line separation equals the uniform source separation multiplied by a total number of sources of the two or more wide towed sources.

A method for performing a marine survey of a subterranean formation, the method comprising:

• deploying an array of ocean bottom seismic (“OBS”) receivers on the subterranean formation;
• determining a sail line separation in a crossline direction;
• towing two or more wide towed sources with a uniform source separation between adjacent pairs of the two or more wide towed sources in the crossline direction and streamers above the array of OBS receivers in an inline direction behind a survey vessel along sail lines separated in the crossline direction by the sail line separation;
• activating the wide towed sources;
• and
• recording wavefields reflected from the subterranean formation at the OBS receivers and receivers located in the streamers as seismic data,
• wherein the OBS receiver separation in the crossline direction is greater than the uniform source separation, and
• wherein the sail line separation equals the uniform source separation multiplied by a total number of sources of the two or more wide towed sources.