Sergipe-Alagoas
Detection and Characterization of Natural Oil Seeps and Oil Slicks in the Shallow, Deep and Ultra Deep Waters of Sergipe-Alagoas Basins, using Radar SAT-1 Satellite data
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Atlas
Summary
Table of Contents
List of Figures
Summary
Satellite Radarsat-1 fine detection and use to characterize areas of oil seeps is considered today a strategic technology for exploration in frontier basins were geophysical and geological data are scarce or non-existent for all major petroleum E&P companies.
The application of oil slick satellite survey, in the offshore realm of the Basin, reduces considerably the exploration risk for oil exploration in deep and ultra-deep water areas where little exploration wells have been drilled up to now. Such type of survey is low cost, fast and very effective in covering large areas. Also, it provides relevant information for planning the acquisition of seafloor piston cores and electromagnetic survey (EMGS). The presence of seepage slicks in the Sergipe-Alagoas Basin, detected through RADARSAT-1 satellite image analysis, indicates the existence of present oil generation and migration processes associated to active oil systems. The detection of 27 seepage slicks identified from very shallow water to ultra-deep water regions, with surface areas varying between 0.02 and 3.80 km², suggests that an overcharged generative hydrocarbon source rocks petroleum system occur widespread around the whole Basin.
Full references of all images are listed in the reports
Table of Contents
- Introduction
- Methods and Results
- Area Studied
- Selection of Radarsat–1 Satellite Images
- Classification by Textures of Radarsat–1 Images
- Monitorinng of Meteorological and Oceanographic Conditions
- Sea Surface Temperature Maps
- Wind Field Intensity Maps
- Remote Sensing Data Base Used in This Study
- Conclusions and Recommendations
- Bibliography
List of Figures
- Map of the study area overlaid over the Sergipe-Alagoas Basin bathymetry (ETOPO) image shadowed and colorized. This image was processed starting with GRID format data with NE lighting and 45o elevation.
- Index map with coverage of 23 (twenty-three) RADARSAT–1 programmed images covering the study area.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow B (SNB) image acquired on February 23, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow B (SNB) image acquired on February 24, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow 1 (SNAR) image acquired on March 02, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow A (SNAR) image acquired on March 09, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow B (SNB) image acquired on March 13, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow 1 (SNAR) image acquired on March 16, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow B (SNB) image acquired on March 19, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow B (SNB) image acquired on March 20, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow A (SNAR) image acquired on March 26, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow A (SNAR) image acquired on March 30, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow A (SNAR) image acquired on April 02, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow 1 (SNAR) image acquired on April 09, 2007.
- Quick-look obtained from a RADARSAT-1 ScanSAR Narrow B (SNB) image acquired on April 12, 2007.
- Quick-look obtained from a RADARSAT-1 Wide 1 (W1) image acquired on April 16, 2007.
- Quick-look obtained from a RADARSAT-1 Wide 2 (WR2) image acquired on April 19, 2007.
- Quick-look obtained from a RADARSAT-1 Wide 2 (WR2) image acquired on April 23, 2007.
- Location of RADARSAT-1full resolution images used in this project
- Descending RADARSAT -1 SNB image acquired on February 24, 2007.
- Seepage slicks interpretation in the RADARSAT -1 SNB image acquired on February 24, 2007.
- Descending RADARSAT -1 SNB image acquired on March 13, 2007.
- Seepage slicks interpretation in the RADARSAT -1 SNB image acquired on March 13, 2007.
- Ascending RADARSAT -1 SNAR image acquired on March 16, 2007.
- 7 Seepage slicks interpretation in the RADARSAT -1 SNAR image acquired on March 16, 2007.
- Ascending RADARSAT -1 SNB image acquired on March 19, 2007.
- Seepage slicks interpreted in the RADARSAT -1 SNAR image acquired on March 19, 2007.
- Descending RADARSAT -1 SNAR image acquired on March 30, 2007.
- Seepage slick interpretation in the RADARSAT -1 SNAR image acquired on March 30, 2007.
- Ascending RADARSAT -1 SNAR image acquired on April 02, 2007.
- Seepage slicks interpretation in the RADARSAT -1 SNAR image acquired on April 02, 2007.
- Ascending RADARSAT -1 W1 image acquired on April 26, 2007.
- Seepage slicks interpretation of the RADARSAT -1 W1 image acquired on April 26, 2007.
- Ascending RADARSAT -1 W1 image acquired on May 10, 2007.
- Seepage slicks interpretation of the RADARSAT -1 W1 image acquired on May 10, 2007.
- Sea Surface Temperature Map obtained at 03:30 hours GMT on February 24, 2007.
- Cloud Top Temperature Map obtained at 03:30 hours GMT on February 24, 2007.
- Wind Field Intensity (m/s) Map obtained at 09:00 hours GMT on February 24, 2007.
- Chlorophyll-A Concentration Map at sea surface obtained at 15:45 Hours GMT on February 24, 2007.
- Sea Surface Temperature Map obtained at 04:15 hours GMT on March 13, 2007.
- Cloud Top Temperature Map obtained at 04:15 hours GMT on March 13, 2007.
- Wind Field Intensity (m/s) Map obtained at 08:20 hours GMT on March 13, 2007.
- Chlorophyll-A Concentration Map at sea surface Map obtained at 16:30 hours GMT on March 13, 2007
- Sea Surface Temperature Map obtained at 16:05 hours GMT on March 17, 2007.
- Cloud Top Temperature Map obtained at 00:50 hours GMT on March 17, 2007.
- Wind Field Intensity (m/s) Map obtained at 20:00 hours GMT on March 16, 2007
- Chlorophyll-A Concentration Map at sea surface Map obtained at 16:05 hours GMT on March 17, 2007
- Sea Surface Temperature Map obtained at 04:20 hours GMT on March 20, 2007.
- Cloud Top Temperature Map obtained at 15:55 hours GMT on March 19, 2007.
- Wind Field Intensity (m/s) Map obtained at 20:24 hours GMT on March 19, 2007.
- Chlorophyll-A Concentration Map at sea surface Map obtained at 12:10 hours GMT on March 20, 2007.
- Sea Surface Temperature Map obtained at 03:20 hours GMT on March 30, 2007.
- Cloud Top Temperature Map obtained at 3:20 hours GMT on March 30, 2007.
- Wind Field Intensity (m/s) Map obtained at 8:30 hours GMT on March 30, 2007.
- Chlorophyll-A Concentration Map at sea surface Map obtained at 12:45 hours GMT on March 30, 2007.
- Sea Surface Temperature Map obtained at 16:05 hours GMT on April 02, 2007.
- Cloud Top Temperature Map obtained at 16:05 hours GMT on April 02, 2007.
- Wind Field Intensity (m/s) Map obtained 20:00 hours GMT on April 02, 2007.
- Chlorophyll-A Concentration Map at sea surface Map obtained at 16:05 hours GMT on April 02, 2007.
- Sea Surface Temperature Map obtained at 00:40 hours GMT on April 27, 2007.
- Cloud Top Temperature Map obtained at 00:40 hours GMT on April 27, 2007.
- Wind Field Intensity (m/s) Map obtained at 20:36 hours GMT on April 26, 2007.
- Chlorophyll-A Concentration Map at sea surface Map obtained at 12:25 hours GMT on April 26, 2007.
- Sea Surface Temperature Map obtained at 03:15 hours GMT on May 10, 2007.
- Cloud Top Temperature Map obtained at 03:15 hours GMT on May 10, 2007.
- Wind Field Intensity (m/s) Map obtained at 08:12 hours GMT on May 10, 2007.
- Chlorophyll-A Concentration Map at sea surface Map obtained at 15:30 hours GMT on May 10, 2007.
- Interpreted seepage slicks polygons overlaid on bathymetric data.
- Interpreted seepage slicks centroids overlaid on bathymetric data.
- Regional geological structures adapted from Arienti, (2006) overlaid on bathymetric data .
- Map of Active Petroleum System for the Neocomian / Barremian Petroleum System
- Map of Active Petroleum System for the Aptain.
- Regional geological structures with hydrocarbon occurrences and pod of active source rocks overlaid on bathymetric data.
- Seepage slicks centroids and regional geological structures overlaid on bathymetric data.
- Seepage slicks centroids and regional geological structures with hydrocarbon occurrences and pod of source rocks overlaid on bathymetric data.
