1. Seismic Balancing to Improve Interpretation Results – A Case Study from the Joseph Bonaparte Gulf Keith Woollard - GeoCom Services Australia Pty Ltd Audrey Leonard - Woodside Energy Limited Amanda Panting - Woodside Energy Limited In Alliance with

2. What Are We Going To See? â Nothing new â Nothing high tech â Nothing expensive â Not even any 3d â Cost effective methodology to improve interpretability of multi-vintage 2d

3. Introduction â The Woodside Energy Limited and Shell Alliance was awarded 3 blocks Offshore Southern Bonaparte Basin â 6500km 2d seismic recorded and processed â Existing 8 bit loaded seismic grid ä 20000km ä 44 “vintages” ranging from 1967 to 1997 ä 670 seismic lines ä Good data quality ä Some loading problems

4. Location

5. Seismic Coverage

6. Example Traverse 89BO CB94 89RX 99W CB80

7. Computing the Misties

8. Why use Statistics?

9. Balanced Traverse

10. Comparison Traverse

11. FastTrack Setup

12. FastTrack Output Raw Balanced

13. FastTrack Output Raw Balanced

14. Non-normalised Amplitude Raw Balanced

15. Normalised Amplitude Raw Balanced

16. Effect of Phase on Amplitude RawBalanced

17. FastTrack Setup

18. FastTrack Run Raw Balanced

19. Normalised FastTrack Amplitude Raw Balanced

20. Mispicked Seismic Raw Balanced

21. Mispicked Seismic Raw Balanced

22. Summary â Used only standard tools, SeismicBalance and UNIX â Significantly increased the quality of regional 2d dataset â Allowed better use of Autotrackers â Mapping is faster and more reliable

23. Acknowledgments â Woodside Energy Limited â Shell Development Australia