IP Library › Granted Patent US 12,313,801
Granted Patent B2
US 12,313,801 · App. 17/908,681 · Granted May 27, 2025

Marine seismic imaging

Inventors: Rajiv Kumar (Horley, GB); Yousif Izzeldin Kamil Amin (Crawley, GB); Sonika (Surry, GB); Massimiliano Vassallo (Brighton, GB); Nihed El Allouche (Cambridge, GB); Daniele Boiero (Kent, GB)
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
G01V1/3808G01V1/307G01V1/362G01V2210/1293G01V2210/1423G01V2210/21G01V2210/57
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Quick Facts
Patent No.
US 12,313,801
App. No.
17/908,681
Granted
May 27, 2025
Kind
B2
Abstract

A method can include receiving seismic survey data of a subsurface environment from a seismic survey that includes a source arrangement of sources that is spatially denser than a receiver arrangement of receivers; processing the seismic survey data using the principle of reciprocity for performing interpolation across the receivers to generate processed seismic survey data; and generating an image of at least a portion of the subsurface environment using the processed seismic survey data.

Claims (44)

1. A method comprising:

receiving seismic survey data of a subsurface environment from a seismic survey that comprises a source arrangement of sources that is spatially denser than a receiver arrangement of receivers;

processing the seismic survey data by performing interpolation across the receivers using the principle of reciprocity to generate processed seismic survey data, wherein the processed seismic survey data includes interpolated seismic survey data;

deriving priors from non-aliased low-frequency spectrum of the interpolated seismic survey data using the principle of reciprocity;

distinguishing between aliased and true events in the processed seismic survey data based at least partially on the priors; and

generating an image of at least a portion of the subsurface environment using the true events in the processed seismic survey data.

2. The method of claim 1 , further comprising identifying a hydrocarbon in the subsurface environment.

3. The method of claim 1 , wherein the seismic survey comprises a marine seismic survey.

4. The method of claim 1 , wherein the receivers comprise nodes.

5. The method of claim 4 , wherein the nodes comprise ocean bottom nodes.

6. The method of claim 1 , wherein the processing comprises performing at least one adjustment based on receiver depth, source depth, or receiver depth and source depth.

7. The method of claim 1 , wherein the priors are derived from a portion of the interpolated seismic survey data that is associated with a common receiver gather, and the method further comprises:

interpolating a common shot gather of the seismic survey data using the priors derived from the portion of the interpolated seismic survey data associated with the common receiver gather.

8. The method of claim 7 , wherein the processing comprises utilizing matching pursuit Fourier interpolation (MPFI).

9. The method of claim 1 , wherein the processing reduces aliasing artifacts.

10. The method of claim 1 , wherein the seismic survey data comprise aliasing artifacts and seismic events.

11. The method of claim 10 , wherein the seismic events comprise non-aliased seismic events.

12. The method of claim 1 , further comprising:

deriving usable priors from interpolation across the sources; and

utilizing the usable priors for stabilizing reconstruction across the receivers.

13. The method of claim 1 , wherein the priors are derived from a portion of the interpolated seismic survey data that is associated with a non-aliased interpolated frequency spectrum of a common receiver gather, and the method further comprises:

stabilizing reconstruction of a common shot gather using the priors derived from the portion of the interpolated seismic survey data associated with the common receiver gather.

14. The method of claim 13 , further comprising interpolating across the receivers using the derived priors.

15. The method of claim 1 , wherein the processing comprises adjusting for a water velocity correction that accounts for changes in sea conditions over time.

16. The method of claim 1 , wherein the processing comprises using constant water velocity re-datuming to map the sources and the receivers to a common datum level.

17. The method of claim 1 , wherein the priors are determined using the sources to span a wider range of a non-aliased part of a frequency-wavenumber spectrum to improve resolution of priors to de-alias seismic events across receivers.

18. A system comprising:

a processor;

memory operatively coupled to the processor; and

processor-executable instructions stored in the memory to instruct the system to:

receive seismic survey data of a subsurface environment from a seismic survey that comprises a source arrangement of sources that is spatially denser than a receiver arrangement of receivers;

process the seismic survey data by performing interpolation across the receivers using the principle of reciprocity to generate processed seismic survey data, wherein the processed seismic survey data includes interpolated seismic survey data;

derive priors from non-aliased low-frequency spectrum of the interpolated seismic survey data using the principle of reciprocity;

distinguish between aliased and true events in the processed seismic survey data based at least partially on the priors; and

generate an image of at least a portion of the subsurface environment using the true events of the processed seismic survey data.

19. The system of claim 18 ,

wherein to derive the priors from the non-aliased low-frequency spectrum of the interpolated seismic survey data, the processor-executable instructions stored in the memory instruct the system to derive the priors from a portion of the interpolated seismic survey data that is associated with a common receiver gather; and

wherein the processor-executable instructions stored in the memory further instruct the system to interpolate a common shot gather of the seismic survey data using the priors derived from the portion of the interpolated seismic survey data associated with the common receiver gather.

20. One or more computer-readable storage media comprising computer-executable instructions executable to instruct a computing system to:

receive seismic survey data of a subsurface environment from a seismic survey that comprises a source arrangement of sources that is spatially denser than a receiver arrangement of receivers;

process the seismic survey data by performing interpolation across the receivers using the principle of reciprocity to generate processed seismic survey data, wherein the processed seismic survey data includes interpolated seismic survey data;

derive priors from non-aliased low-frequency spectrum of the interpolated seismic survey data using the principle of reciprocity;

distinguish between aliased and true events in the processed seismic survey data based at least partially on the priors; and

generate an image of at least a portion of the subsurface environment using the true events of the processed seismic survey data.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2022
From: KUMAR, RAJIV; KAMIL AMIN, YOUSIF IZZELDIN; ., SONIKA; VASSALLO, MASSIMILIANO; EL ALLOUCHE, NIHED; BOIERO, DANIELE
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 061295/0403 →
Continuity (2)
Provisional Application 62986437 · Mar 6, 2020
Related Publication 20230121269A1 · Apr 20, 2023
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Cited By (1)
US 12,601,849