FloridaSPAN includes newly acquired offshore data and an onshore grid of reprocessed legacy data from Seismic Exchange, Inc. (SEI) and Geophysical Pursuit, Inc. (GPI). The offshore data covers the shelf margin and deep water in the eastern Gulf of Mexico while the onshore grid transects four states to reach the east coast. These lines connect to the GulfSPAN onshore and offshore grid and will connect to the East Coast Atlantic Margin program (USAMSPAN). FloridaSPAN covers an important part of the history of the Gulf of Mexico rifting events as Florida breaks away from Africa.
Newly Acquired Eastern Gulf of Mexico Data
The offshore data includes seismic data newly acquired in the eastern Gulf and depth imaged to 40km with both Kirchhoff and Reverse Time Migration (RTM) to integrate gravity, magnetic and well data. They are positioned to cross the Florida shelf and escarpment and extend into deep water with special emphasis on crossing the continental to oceanic crustal boundary, tying important wells and transecting Jurassic basins and highs. The deep imaging on this dataset reveals more criteria to assist models of crustal structure and show the nature of the boundary between continental and oceanic crust as a
crustal boundary detachment feature.
Click on the data example to zoom and pan over the data.
|This key offshore line shows the Florida shelf to deep water and crustal structure. The line is merged to GulfSPAN on the left.|
Louisiana to Florida Data
The onshore data is a select grid of lines from legacy data that is reprocessed from field tapes and made into composite regional lines. These will show consistent processing and depth imaging with the Texas and Louisiana onshore data. The FloridaSPAN addition crosses several states to reach the east coast and will connect with the USAMSPAN data. Approximately 1500 onshore wells serve to control the interpretation and velocity surveys are used to guide the depth imaging. Proposals of extensive faults formed during the Florida/Africa break-apart will be examined on this dataset. This line shows a preliminary PreSTM through north Florida and shows the thinning of the Mesozoic section onto the Chattahoochee and Peninsular Arches.
|Regional onshore composite line, preliminary PreSTM, showing major features to northeast Florida.|
Lines further to the south cross the Sunniland production and can serve as analogs for similar plays in the area offshore. Key strike lines reach to the south into the South Florida Basin imaging the proposed area of offshore that is a likely extension of the onshore Sunniland production into the offshore area.