US 11,747,500 B2
Seismic data acquisition for velocity modeling and imaging
Arvind Sharma, Houston, TX (US)
Assigned to PGS Geophysical AS, Oslo (NO)
Filed by PGS Geophysical AS, Oslo (NO)
Filed on Aug. 14, 2018, as Appl. No. 16/103,867.
Claims priority of provisional application 62/551,275, filed on Aug. 29, 2017.
Prior Publication US 2019/0064380 A1, Feb. 28, 2019
Int. Cl. G01V 1/38 (2006.01)
CPC G01V 1/3808 (2013.01) [G01V 1/3852 (2013.01); G01V 2210/127 (2013.01); G01V 2210/1293 (2013.01); G01V 2210/1423 (2013.01); G01V 2210/1427 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of seismic data acquisition comprising:
acquiring, with a first seismic source comprising an air gun, a first set of seismic data for a survey area with a first plurality of streamer receivers on a first streamer spread, wherein acquiring the first set of seismic data comprises:
navigating a first propulsion source along a first sail line in the survey area, wherein the first seismic source and the first streamer spread are coupled to the first propulsion source;
activating the first seismic source while navigating the first propulsion source;
while navigating the first propulsion source, navigating a second propulsion source along a second sail line in the survey area, wherein a second seismic source is coupled to the second propulsion source; and
activating the second seismic source while navigating the second propulsion source, wherein the first sail line is orthogonal to the second sail line;
simultaneously acquiring, with the first seismic source, a second set of seismic data for the survey area with a plurality of ocean bottom receivers, wherein the first set of seismic data and the second set of seismic data together form a complete dataset for velocity modeling and imaging; and
simultaneously acquiring a third set of seismic data for the survey area with a second plurality of streamer receivers on a second streamer spread, wherein the second streamer spread is coupled to the second propulsion source.