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US 12,736,700 B2Granted
System and method for simultaneously acquiring wide azimuth and ocean bottom node surveys
AssigneeSchlumberger Technology Corporation
InventorsNicolae Moldoveanu, Steve Fealy
Life of this patent
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Abstract
A method may include receiving, via a processor, a first set of seismic data acquired via a Wide Azimuth (WAZ) survey. The method may also include receiving a second set of seismic data acquired via an Ocean Bottom Survey (OBS) simultaneously during a time period in which the first set of seismic data is acquired. The method may then involve processing the second set of data to obtain a velocity model of seismic waves for an area that corresponds to the WAZ survey and OBS and generating one or more seismic images of the area based on the velocity model and the first set of data.
Claims20
A system, comprising:
- a plurality of streamers comprising one or more sensors configured to:
- acquire a first set of seismic data representative of a subterranean region during a first time period;
- and
- acquire a second set of seismic data representative of the subterranean region during a second time period after the first time period;
- a plurality of ocean bottom nodes, wherein a portion of the plurality of ocean bottom nodes is configured to simultaneously acquire a third set of seismic data representative of the subterranean region during the first time period, wherein the portion of the plurality of ocean bottom nodes has a number of ocean bottom nodes less than the plurality of ocean bottom nodes, and wherein the portion of the plurality of ocean bottom nodes corresponds to a shot sample that is a function of a sail line interval associated with the first set of seismic data;
- 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 associated with the subterranean region;
- generate a fourth set of seismic data representative of the subterranean region based on the velocity model and the second set of seismic data, wherein the second set of seismic data is filtered based on the velocity model to generate the fourth set of seismic data;
- and
- generate one or more seismic images of the subterranean region based on the fourth set of seismic data.
8 more elements
A method, comprising:
- receiving, via a processor, a first set of seismic data and a second set of seismic data representative of a subterranean region acquired via one or more sensors, wherein the first set of seismic data is acquired during a first time period, and wherein the second set of seismic data is acquired during a second time period after the first time period;
- receiving, via the processor, a third set of seismic data representative of the subterranean region acquired during the first time period via a portion of a plurality of ocean bottom nodes, wherein the portion of the plurality of ocean bottom nodes has a number of ocean bottom nodes less than the plurality of ocean bottom nodes, and wherein the portion of the plurality of ocean bottom nodes corresponds to a shot sample that is a function of a sail line interval associated with the first set of seismic data;
- processing, via the processor, the first set of seismic data and the third set of seismic data to obtain a velocity model associated with the subterranean region;
- generating, via the processor, a fourth set of seismic data based on the velocity model and the second set of seismic data, wherein the second set of seismic data is filtered based on the velocity model to generate the fourth set of seismic data;
- and
- generating, via the processor, one or more seismic images of the subterranean region based on the velocity model and the fourth set of seismic data.
3 more elements
A non-transitory computer-readable medium comprising computer-executable instructions that, when executed, are configured to cause at least one processor to perform one or more operations comprising:
- receiving, via the at least one processor, a first set of seismic data and a second set of seismic data representative of a subterranean region acquired via one or more sensors, wherein the first set of seismic data is acquired during a first time period, and wherein the second set of seismic data is acquired during a second time period after the first time period;
- receiving, via the at least one processor, a third set of seismic data representative of the subterranean region acquired during the first time period via a portion of a plurality of ocean bottom nodes, wherein the portion of the plurality of ocean bottom nodes has a number of ocean bottom nodes less than the plurality of ocean bottom nodes, and wherein the portion of the plurality of ocean bottom nodes corresponds to a shot sample that is a function of a sail line interval associated with the first set of seismic data;
- processing, via the at least one processor, the first set of seismic data and the third set of seismic data to obtain a velocity model associated with the subterranean region;
- generating, via the at least one processor, a fourth set of seismic data based on the velocity model and the second set of seismic data, wherein the second set of seismic data is filtered based on the velocity model to generate the fourth set of seismic data;
- and
- generating, via the at least one processor, one or more seismic images of the subterranean region based on the velocity model and the fourth set of seismic data.
3 more elements
Dependencies are inferred from the claim text.