South Campeche Ultracube™ 3D Reprocessing Project

Advanced Imaging in Mexico's Premier Offshore Exploration Area

The South Campeche Ultracube™ 3D Reprocessing Project spans a vast expanse of approximately 15,900 square kilometers, stationed within Mexico’s foremost offshore exploration region which is renowned for its plethora of gas and oil discoveries. It is a merge of three pre-existing surveys – the Holok Alvardo 3D (2003), the Cequi 3D (2010), and the Boloi Norte-Balche-Xulum 3D (2003). The array of salt pillows and diapirs in the Gulf of Mexico’s subsurface demands sophisticated processing techniques for accurate seismic imaging, making this project particularly enticing for international explorers.

Elaborate pre-stack imaging and post-stack processing comprise the execution stages, initially yielding high signal-to-noise ratio, broadband data, and subsequently employing TTI Kirchhoff and RTM technologies for efficient subsurface imaging. Completed by DownUnder Geosolutions, these multiple processes utilise dynamic techniques like anisotropic TTI pre-stack depth migration to tackle complex diffracted multiples linked to the Recent thrusted structures. This in turn facilitates high-resolution velocity modelling that ultimately enhances imaging of the pre-Tertiary structure and within the fold belt. Despite its maturity, the South Campeche Ultracube mirrors the region’s potential in fostering diverse petroleum systems and houses the potential of further untapped play types.

Project Size

15,824 km2

Project Partners

DUG

Input Surveys

Bolol Norte 3D
Cequi 3D
Holok Alvarado 3D

Deliverables

Processing: DownUnder Geosolutions
Processing Flow: TTI RTM Angle gather tomography, FWI sediment velocity update, Multi-scenario salt model velocity building

Final Kirchhoff PSDM Stack,
True amplitude Kirchhoff PSDM angle stacks (Full, near, mid, far, ultra-far),
Final RTM PSDM Full Stack,
Final RTM PSDM angle gathers,
Final PSDM Interval Velocities + horizons,
Final PSDM epsilon & delta volumes, Pre-migration binned CMP gathers,
Final processing report