US 12,092,781 B2
System and method for simultaneously acquiring wide azimuth and ocean bottom node surveys
Nicolae Moldoveanu, Houston, TX (US); and Steve Fealy, Houston, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 17/760,335
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Feb. 8, 2021, PCT No. PCT/US2021/017076
§ 371(c)(1), (2) Date Aug. 8, 2022,
PCT Pub. No. WO2021/162987, PCT Pub. Date Aug. 19, 2021.
Claims priority of provisional application 62/975,579, filed on Feb. 12, 2020.
Prior Publication US 2023/0084434 A1, Mar. 16, 2023
Int. Cl. G01V 1/38 (2006.01)
CPC G01V 1/3808 (2013.01) [G01V 2210/1293 (2013.01); G01V 2210/1297 (2013.01); G01V 2210/165 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a plurality of streamers comprising one or more streamer sensors configured to:
acquire a first set of seismic data representative of one or more features of a subterranean region associated with a first time period during which the plurality of streamers is performing a continuous seismic survey and traversing a first plurality of sail lines; and
acquire a second set of seismic data representative of the one or more features associated with a second time period after the first time period, wherein the second set of seismic data is acquired while traversing a second plurality of sail lines of the continuous seismic survey in an opposite direction of the first plurality of sail lines;
a portion of a plurality of ocean bottom nodes the portion of the plurality of ocean bottom nodes comprising less than all of the plurality of ocean bottom nodes, wherein the portion of the ocean bottom nodes is configured to simultaneously acquire a third set of seismic data representative of the one or more features of the subterranean region while the plurality of streamers is acquiring the first set of seismic data, wherein the portion of the plurality of ocean bottom nodes corresponds to a shot sample that is a function of a sail line interval of the first plurality of sail lines; and
a processing system configured to:
process the first set of seismic data and the third set of seismic data to obtain a velocity model of seismic waves for the subterranean region;
generate a fourth set of seismic data representative of the one or more features of the subterranean region based on the velocity model and the second set of seismic data; and
generate one or more seismic images of the subterranean region based on the fourth set of seismic data.