Seismic Geomorphology of Oligocene to Miocene Carbonate Buildups, Offshore Madura, Indonesia: 3-D Seismic Visualization Techniques and Workflows

Alex Warmath¹, Priscilla Laurin¹, Henry Posamentier², and Andrew Mehlhop^2
1 Anadarko Petroleum Corporation, The Woodlands, TX
² Anadarko Canada Corporation, Calgary, AB

A variety of 3D seismic visualization techniques were employed to quickly and accurately depict and analyze basin fill history of the offshore area north of Madura Island, Indonesia, using seismic geomorphology and seismic stratigraphy. Techniques utilized included amplitude mapping from time slices and horizon slices, coherence, opacity rendering, inversion, surface illumination, and attribute co-rendering using a migrated stacked 3D seismic volume.

The workflow involved an initial reconnaissance of the data using time slices which enhanced the understanding of the carbonate deposition of the Kujung 1 and 2, and Wonocolo. Features identified include small patch reef buildups within the Kujung 2, a large platform margin cut by deep channels as well as isolated large patch-reef buildups within the Kujung 1, and asymmetric current-influenced buildups within the Wonocolo. Time and horizon slices through the coherence volume were especially useful for reconnaissance imaging of the Wonocolo Formation. Subsequent to reconnaissance mapping, the a deeper Kujung 3 target was not as readily identifiable partly due to velocity pull-ups associated with the Wonocolo and the Kujung 1 carbonates which masked the identification of Kujung 3 buildups on the platform. An inversion volume based on acoustic properties from a nearby well was created improving the identification of Kujung 3 buildups on carbonate platform. The use of multiple 3D volumes and visualization techniques improved the interpretation and understanding of the depositional environments through the Oligocene to Miocene carbonate deposition.

AAPG Search and Discovery Article #90039©2005 AAPG Calgary, Alberta, June 16-19, 2005