METHOD AND DEVICE FOR MARINE SEISMIC ACQUISITION

摘要

Methods and systems for improving azimuth distribution in a seismic acquisition system are described. A survey acquisition system includes a plurality of streamers towed by a plurality of streamer vessels, including a first streamer vessel and a second streamer vessel and a plurality of sources towed by a plurality of source vessels. The plurality of streamer vessels and plurality of source vessels are configured relative to one another such that the plurality of source vessels are positioned at one or more predetermined inline distances behind a portion of the first streamer vessel and are also positioned at one or more predetermined inline distances in front of a portion of the second streamer vessel. The plurality of streamer vessels and plurality of source vessels are also spaced apart from one another in a cross-line direction.

主权项

1. A survey acquisition system comprising:
a plurality of streamers towed by a plurality of streamer vessels, including a first streamer vessel and a second streamer vessel; a plurality of sources towed by a plurality of source vessels, wherein said plurality of streamer vessels and said plurality of source vessels are configured relative to one another such that said plurality of source vessels are positioned at one or more predetermined inline distances behind a portion of the first streamer vessel and are also positioned at one or more predetermined inline distances in front of a portion of the second streamer vessel, wherein said plurality of source vessels are positioned between the first streamer vessel and the second streamer vessel in the inline direction, wherein said plurality of streamer vessels and said plurality of source vessels are also spaced apart from one another in a cross-line direction, and wherein the one or more predetermined inline distances are greater than a shot point interval.