Systems and methods for enhancing a seismic data image

• US 7,702,463 B2
• Filed: 12/12/2007
• Issued: 04/20/2010
• Est. Priority Date: 12/12/2007
• Status: Active Grant

• Current Assignee: Landmark Graphics Corporation (Halliburton Company)
• Original Assignee: Landmark Graphics Corporation (Halliburton Company)
• Inventors: Levin, Stewart A.
• Primary Examiner(s): Feliciano; Eliseo Ramos
• Assistant Examiner(s): Suglo; Janet L
• Application Number:
  US11/954,596
• Publication Number:
  US 20090157322A1
• Time in Patent Office: 860 Days
• Field of Search: 702/14, 367/7, 367/68, 367/72
• US Class Current: 702/14
• CPC Class Codes: G01V 1/34 Displaying seismic recordings or visualisation of seismic data or attributes

Abstract

Systems and methods for enhancing the resolution of a seismic data image displayed on a face of a sampling probe. The enhanced image represents a maximum resolution of at least a portion of the seismic data image. The seismic data image is enhanced by extracting seismic data that are perpendicular to a reflection surface that is closest to a center of the sampling probe and positioning the extracted seismic data in a visible planar face of the sampling probe.

Claims

1. A method for enhancing the resolution of a seismic-data image, comprising:

positioning a sampling probe around seismic data, the seismic data comprising at least one of the seismic data within the sampling probe and the seismic data intersecting the sampling probe;

extracting with a processor only the seismic data that are perpendicular to a reflection surface that is closest to a center of the sampling probe;

repositioning at least a portion of the extracted seismic data in a visible planar face of the sampling probe to form an enhanced image of the seismic data image; and

displaying the enhanced image.

2. The method of claim 1, wherein the seismic data comprise seismic data traces, each seismic data trace comprising information confirming at least one of its local dip and its local azimuth.

3. The method of claim 2, wherein extracting the seismic data that are perpendicular to the reflection surface comprises calculating a normal incidence direction for each seismic data trace relative to the reflection surface.

4. The method of claim 3, wherein the reflection surface is predetermined and is used for calculating the normal incidence direction for each seismic data trace relative to the reflection surface.

5. The method of claim 3, wherein at least one of the local dip and the local azimuth for each seismic data trace within the seismic data are used for calculating the reflection surface and the normal incidence direction for each seismic data trace relative to the reflection surface.

6. The method of claim 1, wherein repositioning the at least a portion of the extracted seismic data in the visible planar face of the sampling probe comprises reorienting a normal incidence direction of the reflection surface to correspond with a plane substantially parallel to the visible planar face.

7. The method of claim 6, further comprising reorienting the reflection surface to correspond with a plane substantially perpendicular to the visible planar face and another visible planar face of the sampling probe.

8. The method of claim 1, further comprising displaying the seismic data before positioning the sampling probe.

9. The method of claim 8, wherein the displayed seismic data comprises a predetermined interpretation of a surface representing the reflection surface.

10. The method of claim 1, further comprising displaying the enhanced image in a separate display window for analysis or comparison with the seismic data image.

11. The method of claim 1, wherein the enhanced image represents a maximum resolution of a portion of the seismic data.

12. The method of claim 1, wherein the seismic data image comprises the seismic data intersecting only the visible planar face of the sampling probe.

13. A computer readable medium having computer executable instructions for enhancing the resolution of a seismic-data image, the instructions being executable to implement:

positioning a sampling probe around seismic data, the seismic data comprising at least of the seismic data within the sampling probe and the seismic data intersecting the sampling probe;

extracting only the seismic data that are perpendicular to a reflection surface that is closest to a center of the sampling probe;

repositioning at least a portion of the extracted seismic data in a visible planar face of the sampling probe to form an enhanced image of the seismic data image; and

displaying the enhanced image.

14. The computer readable medium of claim 13, wherein the seismic data comprise seismic data traces, each seismic data trace comprising information confirming at least one of its local dip and its local azimuth.

15. The computer readable medium of claim 14, wherein extracting the seismic data that are perpendicular to the reflection surface comprises calculating a normal incidence direction for each seismic data trace relative to the reflection surface.

16. The computer readable medium of claim 15, where the reflection surface is predetermined and is used for calculating the normal incidence direction for each seismic data trace relative to the reflection surface.

17. The computer readable medium of claim 15, wherein at least one of the local dip and the local azimuth for each seismic data trace within the seismic data are used for calculating the reflection surface and the normal incidence direction for each seismic data trace relative to the reflection surface.

18. The computer readable medium of claim 13, wherein repositioning the at least a portion of the extracted seismic data in the visible planar face of the sampling probe comprises reorienting a normal incidence direction of the reflection surface to correspond with a plane substantially parallel to the visible planar face.

19. The computer readable medium of claim 18, further comprising reorienting the reflection surface to correspond with a plane substantially perpendicular to the visible planar face and another visible planar face of the sampling probe.

20. The computer readable medium of claim 13, further comprising displaying the seismic data before positioning the sampling probe.

21. The computer readable medium of claim 20, wherein the displayed seismic data comprises a predetermined interpretation of a surface representing the reflection surface.

22. The computer readable medium of claim 13, further comprising displaying the enhanced image in a separate display window for analysis or comparison with the seismic data image.

23. The computer readable medium of claim 13, wherein the enhanced image represents a maximum resolution of a portion of the seismic data.

24. The computer readable medium of claim 13, wherein the seismic data image comprises the seismic data intersecting only the visible planar face of the sampling probe.