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Exploration of Sedimentary Basins using Altimeter Data By Khalid A. Soofi
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Exploration Strategy Good Old Times –Look for seeps & drill –Look for bumps & drill Minimum Requirements –Find unexplored basin –Is sedimentary basin thick enough? –Does it have a source? –Generation & Migration possible? –Is there a Trap? –Is there a seal? –Economics?
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Some specific examples of using Altimeter Data Quick ScreeningQuick Screening Salt, Mini-BasinsSalt, Mini-Basins Submarine CanyonsSubmarine Canyons Fracture ZonesFracture Zones Forward ModelingForward Modeling Wish List for Future MissionsWish List for Future Missions
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Black Sea – Quick Screening
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Offshore – free air gravity Onshore - topography Malay Basin Tonle Sap - Cambodia
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Salt Features Mini Basins
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Salt Features, Mini Basins
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Gulf of Mexico
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Seep Association type
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SAR – Slick Detection Mechanism
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Hydrocarbon Slicks from Space
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Gulf of Mexico - Seeps
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Satellite Gravity Finds Sediment Fairways Comparison between satellite gravity, marine, and land gravity
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Barbados – Altimeter data
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Barbados offshore Multi-beam Image
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Multi-beam data with acoustic backscatter
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Fracture Zones
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Off shore Niger Delta: Structural Province Map Stable shelf Counter- regional growth faults Regional growth faults Translational basin Mobile-shale cored anticlines and diapirs Shale-cored detachment fold Basin-verging outer toe thrusts Hinterland- verging outer toe thrusts Buried Cretaceous seamounts LEGEND Oceanic fracture zone Outer thrust front Inner thrust front Abyssal Plain of Gulf of Guinea Limit of extension Counter regional growth faults Fig 4
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Submarine Canyons
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Submarine Canyons – West Africa
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Submarine Canyons – Indus River
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Submarine Canyon – Ganges River
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Submarine Canyons – offshore Nigeria
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Submarine Canyons Regional Seismic merged with Altimeter Data
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Submarine channels offshore Nigeria
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Forward Modeling
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Caspian Sea ( Model Locations)
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Free Air Gravity Modeling (Strike Slip Model)
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Free Air Gravity Modeling (Over-thrust Model)
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Other Applications… Pipeline Routing conceptual design Seismic survey design Potential Hazard Areas
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Ship Tracks
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Wish List... Resolve 10 km features near-shore (less then 1000 meters water depth) both on Free Air Gravity ( & Bathymetry, if possible). Get rid of near-shore noise by collecting more reliable altimeter data and merging with available ship data Get rid of ship track noise...
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Limitations (for HC Exploration)
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Ship Tracks
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