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2009-12-28 Bookmark and Share To bloggers
Satellite Monitoring of Lukoil North Caspian Production Facilities
Integrated spatial distribution map of sea slick and surfactant pollution detected with the use of RADARSAT-1 and ENVISAT-1 satellites from August through November 2009 (interface of Lukoil-Kosmosmimki Geoportal)
Integrated spatial distribution map of sea slick and surfactant pollution detected with the use of RADARSAT-1 and ENVISAT-1 satellites from August through November 2009 (interface of Lukoil-Kosmosmimki Geoportal)
Distribution area of surfactants of biogenic origin in the Volga River estuary in LANDSAT-5 optical image and RADARSAT-1 radar image (top right), 16.08.2009 (CSA, MDA, USGS, SCANEX, 2009)
Distribution area of surfactants of biogenic origin in the Volga River estuary in LANDSAT-5 optical image and RADARSAT-1 radar image (top right), 16.08.2009 (CSA, MDA, USGS, SCANEX, 2009)
Ship spills and ships being likely pollution sources (red circle) in a RADARSAT-1 image fragment of 07.10.2009 near the coast of Kazakhstan (CSA, MDA, ScanEx, 2009)
Ship spills and ships being likely pollution sources (red circle) in a RADARSAT-1 image fragment of 07.10.2009 near the coast of Kazakhstan (CSA, MDA, ScanEx, 2009)
Outcome of ship markers juxtaposition per AIS data (triangles) and satellite radar imagery (red circles). Tranzas AIS viewer, ship markers of RADARSAT-1 image dated 30.08.2009 (Tranzas, ScanEx, 2009)
Outcome of ship markers juxtaposition per AIS data (triangles) and satellite radar imagery (red circles). Tranzas AIS viewer, ship markers of RADARSAT-1 image dated 30.08.2009 (Tranzas, ScanEx, 2009)
LSP-1 and LSP-2 platforms interconnected with a bridge and support ships of the main production facilities in the image fragment acquired by EROS B satellite, 29.08.2009. Spatial resolution of 0.7 m. (ImageSat Int., ScanEx, 2009)
LSP-1 and LSP-2 platforms interconnected with a bridge and support ships of the main production facilities in the image fragment acquired by EROS B satellite, 29.08.2009. Spatial resolution of 0.7 m. (ImageSat Int., ScanEx, 2009)
Slick of petroleum products detected in the optical image of LANDSAT-5 of 16.08.09 07:13 UTC (top left) and the radar image of RADARSAT-1 of 16.08.09 14:30 UTC (bottom left) with 7 h 17 min time difference on the geospatial base map in Lukoil-Kosmosnimki geoservice. Right: outcome of slick motion modeling performed by OilMARS application (ScanEx, AARI, 2009)
Slick of petroleum products detected in the optical image of LANDSAT-5 of 16.08.09 07:13 UTC (top left) and the radar image of RADARSAT-1 of 16.08.09 14:30 UTC (bottom left) with 7 h 17 min time difference on the geospatial base map in Lukoil-Kosmosnimki geoservice. Right: outcome of slick motion modeling performed by OilMARS application (ScanEx, AARI, 2009)
In August November 2009 as requested by Lukoil-Nizhnevolzhskneft Company, ScanEx Research and Development Center completed the project for satellite monitoring of oil pollution in the North Caspian. The project goal was to detect pollution on the surface of the North Caspian with petroleum products and identify possible pollution sources within the period of sea ice-resistant fixed platform installation in the Yuri Korchagin oil field.

The domestic network-based technology of multi-satellite monitoring ScanNet developed by ScanEx RDC was applied to ensure high probability of oil pollution detection and cause identification. The primary technology components were as follows:
high acquisition frequency (1 session per 2 days in average) achieved through the use of two satellites with onboard radar sensors RADARSAT-1 (Canada) and ENVISAT-1 (European Space Agency);
arrangement of direct reception of satellite images in Russia and their computerized processing in near real time mode;
prompt product delivery to the requestor via the web-service.

To ensure high operability the Moscow Office of ScanEx RDC arranged round-the-clock cycle of radar imagery reception and processing. Satellite information after thematic processing in near real-time mode was delivered to specialists of Lukoil-Nizhnevolzhskneft via Lukoil-Kosmosnimki web-service, which is based on the local GeoMixer web-technology.

From August 1 to November 30 total of 64 sessions were completed for operational satellite imagery of the North Caspian (average revisit period being less than 48 hours), which resulted in receiving and processing 45 images of RADARSAT-1 (spatial resolution of 50 m) and 19 images of ENVISAT-1 (150 m).

In addition, to ensure high frequency of the North Caspian offshore monitoring the project utilized optical multi-spectral images from Terra and Aqua, Landsat-5 (USA) as well as high detail imagery of EROS-A/B (Israel). In particular Landsat-5 data were used for nature identification of certain slicks and for validation of oil slick presence in the radar images.

For demonstration purposes e-GEOS (Italy) and MDA (Canada) Operators provided radar images from the new satellites RADARSAT-2 (Canada) and COSMO-SkyMED (Italy).

Oil slicks of anthropogenic nature were delineated in 17 radar images. Oil pollution within the license areas of LUKOIL-Nizhnevolzhskneft was not detected in the entire monitoring period.

The main portion of the detected pollution occurred due to ship dumping of polluted water and petroleum products, due to the distinctive shape and location near traffic routes. The acreage of largest spills constituted 2-3 square km. Some satellite images also detected ships involved in pollution.

Based on the geospatial distribution analysis of detected oil pollution of sea surface the most polluted area is the Astrakhan sea anchorage, which is connected by traffic routes with the Caspian basin seaports. Significant pollution level was detected along the traffic routes around the Tyub-Karagan Peninsula connecting Kazakhstan ports with the Astrakhan sea anchorage and Makhachkala as well as those running around the Tuyleni Island in the Kazakhstan sector.

In conjunction with the satellite images the monitoring of the North Caspian utilized oil slick motion models and data of automated identification of ships AIS, supplied from Tranzas Company in the test mode.

Calculation of stable oil pollution transfer in the process of monitoring utilized OilMARS (Oil Spill Model for the Arctic Seas), developed in AARI. The model takes into account transfer and transformation of oil pollution on the sea surface occurred through emergency oil spills from fixed and moving sources, as well as distribution of oil pollution slicks detected on the sea surface. The model was preliminary adapted to the Caspian Sea water area and the reference analysis grid was generated.

Verification of the OilMARS model in the Caspian Sea was achieved through the use of satellite image pairs of the one and the same oil slick obtained in the course of the monitoring within 8-12 hour timeframe.

In the framework of the project assessment of the environmental condition of the North Caspian surface involved daily generation of three product types resulting from processing of images acquired by MODIS spectroradiometers onboard Terra and Aqua (USA) satellites: maps of chlorophyll-a concentration, suspended matter and sea surface temperature.

Generally in the Russian sector of the Caspian stable environmental situation was observed in the process of the satellite monitoring and no significant deviations from average long-term values were noticed. Presence of biogenic films of surfactants and petroleum product spills detected by satellite imagery was representative for the estuary area of the Volga and along ship traffic routes respectively. However it didnt significantly impact the ecosystem condition. Export of slick pollution by river runoff was not observed within the monitoring period.

Integrated application of satellite and additional information allows identification of nature and likely pollution sources, in particular ships involved in it, - summarizes Alexei Kucheiko, Deputy General Director of ScanEx RDC.

High frequency of imagery sessions ensures reliable control over license areas and neighboring zones, high probability of pollution detection, capability to track slick drift dynamics including identification of sea area pollution facts caused by transfer of oil slicks in a license area from outside due to effects of hydrometeorological factors, - points out Viktoria Zatyagalova, Head of Operational Radar Monitoring Department of ScanEx RDC.

REFERENCE:
ScanEx Research and Development Center
is the leading Russian company in the remote sensing market that offers a complete set of services ranging from acquisition to thematic processing of Earth observation images from space. Portfolio: designing and manufacturing of hardware/software complexes for spatial data reception and processing, development of software applications for satellite data reception, storage, processing and interpretation, cataloging of world leading remote sensing programs data, generation of thematic end products, rendering web-mapping services.

LUKOIL-Nizhnevolzhskneft an affiliate company of LUKOIL. The primary business areas are search, exploration and development of oil, gas and gas condensate deposits, production of oil and gas offshore the North Caspian and in the Astrakhan Region. Presently the company is in the process of implementing the project for development of the field named after Yuri Korchagin in the North Caspian. The start of industrial oil extraction is scheduled here in the spring of 2010.

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