NPA Satellite Mapping Barbados 2015 seepage study - CGG€¦ · Possible seepage slick within...
2
Possible seepage slick within Barbados maritime boundaries. Distribution of SAR images over Barbados 2015 license blocks. Barbados seepage study NPA’ s seepage database contains extensive coverage across offshore Barbados. Seepage detection by SAR (Synthetic Aperture Radar) is a proven technique for mapping surface oil seeps which could provide the first indication of petroleum systems in these basins: • NPA have 26 interpreted SAR scenes over the Barbados 2015 license blocks • Provides 10 times levels of coverage, with new data being sourced over areas of sparser coverage Background Onshore seeps have been recognized in Barbados since the 18th century and have been exploited over time, initially by hand-dug wells and then deeper drilling with production reaching a peak of 25,000bbl by 1910. An unsuccessful period followed before the discovery of the onshore Woodbourne oil field in the late 60’s, which still produces modest volumes of oil totaling 1,000 bopd. To date, only one offshore well, Sandy Lane 1, has been drilled, which yielded only gas shows. However, the recent award of two offshore blocks to BHP Petroleum has rekindled interest in the offshore potential. Prospectivity is anticipated in the Eocene and younger formations within the Tobago and Barbados Fore-arc basins, which are presumed to hold a mature Paleogene source. However, the hydrocarbon phase (oil or gas) is currently unknown. The NPA seepage study directly addresses this question. NPA have already mapped a moderate density of slicks, which include possible oil seeps, thus implying the existence of an offshore petroleum system. NPA is currently increasing coverage levels of satellite data offshore Barbados, which could potentially uncover temporal repetition over existing slicks or discover new sites of possible seepage. This key information for offshore Barbados is now available from NPA. Barbados 2015 seepage study As a world-leading satellite remote sensing service provider, NPA Satellite Mapping (NPA) detect, interpret, classify and monitor natural seepage and pollution slicks occurring in offshore environments. Satellite Mapping - Offshore Exploration Offshore Seeps Study Barbados coverage Seep detection © ESA 2015 NPA Satellite Mapping
Transcript of NPA Satellite Mapping Barbados 2015 seepage study - CGG€¦ · Possible seepage slick within...
Possible seepage slick within Barbados maritime boundaries.
Distribution of SAR images over Barbados 2015 license blocks.
Barbados seepage study NPA’s seepage database contains extensive coverage across offshore Barbados. Seepage detection by SAR (Synthetic Aperture Radar) is a proven technique for mapping surface oil seeps which could provide the first indication of petroleum systems in these basins:
•NPA have 26 interpreted SAR scenes over the Barbados 2015 license blocks
•Provides 10 times levels of coverage, with new data being sourced over areas of sparser coverage
BackgroundOnshore seeps have been recognized in Barbados since the 18th century and have been exploited over time, initially by hand-dug wells and then deeper drilling with production reaching a peak of 25,000bbl by 1910. An unsuccessful period followed before the discovery of the onshore Woodbourne oil field in the late 60’s, which still produces modest volumes of oil totaling 1,000 bopd. To date, only one offshore well, Sandy Lane 1, has been drilled, which yielded only gas shows. However, the recent award of two offshore blocks to BHP Petroleum has rekindled interest in the offshore potential.
Prospectivity is anticipated in the Eocene and younger formations within the Tobago and Barbados Fore-arc basins, which are presumed to hold a mature Paleogene source. However, the hydrocarbon phase (oil or gas) is currently unknown. The NPA seepage study directly addresses this question. NPA have already mapped a moderate density of slicks, which include possible oil seeps, thus implying the existence of an offshore petroleum system.
NPA is currently increasing coverage levels of satellite data offshore Barbados, which could potentially uncover temporal repetition over existing slicks or discover new sites of possible seepage. This key information for offshore Barbados is now available from NPA.
Barbados 2015 seepage studyAs a world-leading satellite remote sensing service provider, NPA Satellite Mapping (NPA) detect, interpret, classify and monitor natural seepage and pollution slicks occurring in offshore environments.
Satellite Mapping - Offshore Exploration
Offshore Seeps Study
Barbados coverage
Seep detection
©ESA 2015
NPA Satellite Mapping
CGG Worldwide Headquarters - Tour Maine-Montparnasse - 33, avenue du Maine - B.P. 191 - 75755 Paris Cedex 15, FRANCE +33 1 64 47 45 00
15FY
-NP-
198-
V1
Satellite Mapping - Offshore Exploration
Global Offshore Seeps Database
Comprehensive mapping and categorization of offshore oil seeps is essential for efficient offshore oil and gas exploration. Enhanced and interpreted SAR satellite imagery is capable of identifying key regions of seepage, thus focusing exploration efforts and reducing costs.
Coverage •Multiple scene coverage - up to 10x coverage levels becoming
standard
•Optimal satellite SAR data selected from weather screening of the world’s SAR archives
•Data integrated and interpreted with supporting geological, geophysical and geochemical data from Robertson, where available
•New high-resolution data from TerraSAR-X, Radarsat-2 and COSMO-SkyMed satellites used for license studies
Deliverables •Full ArcGIS® deliverables with all scenes and slick images geo-
referenced and hyperlinked
•Unique repeats database comparing seep locations using multi-date coverage
•Results overlaid and compared to collateral data layers including: bathymetry, gravity, sedimentary thickness, magnetics, shipping lanes and shipwrecks
•New ship and rig layers available for all scenes to complement the interpretation
Additional unique features •Repeat database and seepage intensity maps - related to basin
leakiness parameters
•Purchased seep data accessible via the Robertson Tellus geological database
•Complete validation chain available - seeps - multibeam - drop cores - geochemistry - surface sampling
*ArcGIS is a registered trademark of Environmental Systems Research Institute, Inc. (ESRI).
NPA provide global satellite coverage of offshore basins.
An explanation of how seeps form and are detected by satellite.
The principle of seeps
Global offshore seeps coverage
© NPA 2015
© NPA 2015
General Contact Michael King - Offshore Services Manager [email protected] Tel: +44 (0)1732 865023
Alan Williams - Oil & Gas Manager [email protected] Tel: +44 (0)1732 865023
cgg.com/npa
