ANALYSIS OF THE CONDITIONS IN THE FORMATION OF OPEN WATER SPACES BEHIND OFFSHORE PLATFORMS FOR THE ELIMINATION OF OIL SPILLS
Abstract
The first marine ice-resistant stationary platform Pil’tun-Astokhskaya-A (MISP PA-A) was installed on the northeast shelf of Sakhalin Island more than 20 years ago. Currently, five MISPs (PA-A, PA-B, LUN-A, Orlan and Berkut) operate in the coastal waters and plans are being actively discussed to develop new hydrocarbon deposits. The duration of the ice period in this region of the Sea of Okhotsk varies from 181 to 197 days, and the issue of actions plans for the elimination and mitigation of possible large-scale oil spills in the ice period are of particular relevance. This paper presents the results of the study of the conditions for the formation of open water spaces (OWS) in the ice cover (IC) behind the MISP obtained from aeronautical, shipbased and satellite observations, as well as practical experience in ice management in the framework of the Sakhalin-2 project in 1999–2008. The peculiarities of OWS formation can be refined for significant increasing of response on the oil pollution in the presence of the IC, for example, by eliminating oil in the wake formed by ice drift after the MISP and therefore reduce the load on the marine environment. The proposed methodological approach of artificially created OWS can be implemented in the waters of the freezing and Arctic seas that wash the shores of Russia, where the development of offshore hydrocarbon deposits is underway. At the same time, special attention for each particular MISP should be given to taking into account local ice conditions when developing safety issues for conducting such marine operations (this issue should be the subject of a separate study).
References
- Astaf’yev V.N., Surkov G.A., and Truskov P.A. Torosy i stamukhi Okhotskogo moray (Hummocks and Grounded hummocks of the Sea of Okhotsk). St. Petersburg: Progress-Pogoda, 1997, (In Russian).
- Dumanskaya I.O. Ledovyye usloviya morey aziatskoy chasti Rossii (Ice conditions of the seas of the Asian part of Russia). Moskva: Obninsk: IG – SOCIN, 2017, (In Russian).
- Minervin I.G., Romanyuk V.A., and Pishchal’nik V.M. Zoning the Ice Cover of the Sea of Okhotsk and the Sea of Japan. Herald of the Russian Academy of Sciences, 2015, Vol. 85, No. 2, pp. 132–139. Pleiades Publishing, Ltd., 2015, doi: 10.1134/S1019331615010049.
- Monin A.S., Kamenkovich M.N., and Kort V.G. Izmenchivost’ Mirovogo okeana (The variability of the oceans). St. Petersburg: Gydrometeoizdat, 1974, (In Russian).
- Pishchal’nik V.M., Pokrashenko C.A., Leonov A.V., and Gal’tsev A.A. Osobennosti razvitiya ledyanogo pokrova Okhotskogo morya v 2001–2006. (Features of the development of the ice cover of the Sea of Okhotsk in 2001–2006. Sbornik statey REA No. 1 «Ekologicheskiye aspekty osvoyeniya neftegazovykh mestorozhdeniy», “Environmental aspects of the development of oil and gas fields.” Vladivostok: Dal’nauka, 2009, pp. 185–197, (In Russian).
- Pishchal’nik V.M., Arkhipkin V. S., and Leonov A.V. Reconstruction of the Annual Variations of Thermohaline Characteristics and Water Circulation on the Northeastern Sakhalin Shelf. Water Resources, 2014, Vol. 41, No. 4, pp. 385–395, doi: 10.1134/S0097807814040113.
- Pishchal’nik V.M., Romanyuk V.A., Minervin I.G., and Batukhtina A.S. Analiz dinamiki anomaliy ledovitosti Okhotskogo morya v period s 1882 po 2015 (Analysis of the dynamics of the ice cover anomalies of the Sea of Okhotsk in the period from 1882 to 2015). Izv. TINRO, 2016, Vol. 185, pp. 228–239, (In Russian).
- Pishchal’nik V.M., Minervin I.G., and Romanyuk V.A. Analysis of Variations in the Ice Regime in Individual Regions of the Rea of Okhotsk during the Warming Period. Herald of the Russian Academy of Sciences, 2017, Vol. 87, No. 3, pp. 237–248. Pleiades Publishing, Ltd., 2015, doi: 10.1134/S1019331617030042.
- Pishchal’nik V.M. and Minervin I.G. Analiz rezul’tatov raschota ob”yoma l’da v Okhotskom more na osnove dannykh distantsionnogo zondirovaniya Zemli (Analysis of the results of calculating the volume of ice in the Sea of Okhotsk based on remote sensing data). Izv. TINRO, 2019, (In press), (In Russian).
- Pokrashenko S.A., Truskov P.A., and Yakunin L.P. Issledovaniye dreyfa l’da na shel’fe o. Sakhalin s pomoshch’yu metodov radiolokatsii (The study of ice drift on the shelf. Sakhalin using radar methods). Tr. DVNII, 1987, Vol. 37, pp. 49–52, (In Russian).
- Romanyuk V.A., Pishchal’nik V.M., and Minervin I.G. Issledovaniye vliyaniya srokov smeny sezonov na ledovitost’ Okhotskogo i Yaponskogo morey (Study of the influence of seasons on the ice cover of the Sea of Okhotsk and the Sea of Japan), Fizika geosfer: Sed’moy Vserossiyskiy Simpozium, September 5–9, 2011. Vladivostok: Dal’nauka, 2011, pp. 218– 224, (In Russian).
- Romanyuk V.A., Pishchal’nik B.M., Bobkov A.O., and Minervin I.G. Osnovnyye printsipy raboty programmnogo kompleksa «LYOD» (Basic Principles of Operation of the Program «ICE», Fizika geosfer: IX-th Vserossiyskiy simpozium, August 31–September 4. 2015. Vladivostok: Dal’nauka, 2015, pp. 556–561, (In Russian).
- Svidetel’stvo o gosudarstvennoy registratsii programmy dlya EVM № 2015660472. Programmnyy kompleks dlya rascheta ploshchadi ledyanogo pokrova v Okhotskom i Yaponskom moryakh po dannym DZZ (PK «LYOD») (Certificate of state registration of computer programs No. 2015660472. Software complex for calculating the ice cover in the Sea of Okhotsk and the Sea of Japan according to remote sensing data (LYOD PC). Authors: Pischal’nik V.M., Bobkov A.O. and Romanyuk V.A. State date registration in the Register of computer programs October 1, 2015, (In Russian).
- http://www.data.jma.go.jp.
- https://worldview.earthdata.nasa.gov
- https://apps.sentinel-hub.com
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