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Cyprus 2016 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.
Cyprus seepage studyCyprus is planning its third licensing round, comprising three offshore blocks. The offshore blocks are covered by NPA’s satellite seepage detection project.
Seepage detection by SAR (Synthetic Aperture Radar) is a proven technique for mapping surface oil seeps which could provide the first indication of offshore petroleum systems.
•NPA currently have 41 interpreted SAR scenes over Cyprus’ third offshore licensing round blocks.
•NPA are currently in the process of increasing the number of scenes in areas of sparser coverage.
Background
Cyprus joined the ranks of exploration hot spots with Noble’s giant Aphrodite gas discovery in Block 12 in 2011. Although there were some disappointing drilling results from Total and partners from their second round blocks, industry interest in the offshore Cyprus third licensing round is likely to be high, particularly in view of ENI’s recent giant Zohr gas discovery just to the south of the Cyprus median line and the recently announced plans for developing Noble’s giant Leviathan gas discovery to the east in the Israeli sector of the same basin.
The Levantine basin gas discoveries are from subsalt Oligo-Miocene carbonates but, although there are minor associated liquids reported with these gas fields, there has not as yet been any major oil discoveries in the basin. However, in 2010, the USGS assessed undiscovered (technically recoverable) reserves in this basin (extending from Egypt in the south to Turkey in the north) to be 122 Tcf of gas and 1.7 billion barrels of oil with upside potential of up to 227 Tcf of gas and 3.8 billion barrels of oil. There is indeed some evidence of oil seeping from seabed mud volcanoes in the northern part of the basin, but the existence of oil kitchens in the south, in Cypriot waters, remains unknown.
NPA’s SAR seepage study directly addresses this source risk.
Archive coverage over the Cyprus offshore blocks.
Seepage detection offshore Cyprus.
Offshore Seeps Study
License block coverage
Possible seep detection
© NPA 2016
© ESA
NPA Satellite Mapping - Offshore Services
CGG Worldwide Headquarters - Tour Maine-Montparnasse - 33, avenue du Maine - B.P. 191 - 75755 Paris Cedex 15, FRANCE +33 1 64 47 45 00
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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
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 coverage - up to 10x coverage 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
georeferenced 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 ship wrecks
•New ship and rig layer available for all scenes to complement the interpretation
Additional unique features •Repeat database and seepage intensity maps - related to
basin leakiness parameters
•Seep data accessible via the Robertson Tellus geological database
•Complete CGG validation chain - Seeps - Multibeam - Drop Cores - Geochemistry
*ArcGIS is a registered trademark of Environmental Systems Research Institute, Inc. (ESRI).
Global Offshore Seeps Database
Current coverage of our Global Offshore Seeps Database.
An explanation of how seeps form and are detected by satellite.
Global offshore seeps coverage
The principle of seeps
© NPA 2016
© NPA 2016
NPA Satellite Mapping - Offshore Services
cgg.com/npa
