Adsorbed oil of gas condensate fields |
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| Institution: | 1. Gubkin Russian State Oil and Gas University, Leninskii pr. 65, build. 1, Moscow, 119991, Russia;2. Yamal-Nenets Branch of A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, ul. Komsomol’skaya 15a, Nadym, 629730, Russia;3. Institute of Oil and Gas Problems, Russian Academy of Sciences, ul. Gubkina 3, Moscow, 119333, Russia;1. CITEMA, Universidad Tecnológica Nacional, Facultad Regional La Plata, 60 y 124, 1900 La Plata, Argentina;2. CINDECA, CCT-La Plata-CONICET, Universidad Nacional de La Plata, 47N 257 (B1900AJK), La Plata, Argentina;3. LABIO-INT/MCT, Av. Venezuela 82, Rio de Janeiro, RJ 20081-310, Brazil;1. Institute for Geochemistry and Petrology, ETH Zurich, Zurich 8092, Switzerland;2. SLS, Infrared Beamline, Paul Scherrer Institute, Villigen 5232, Switzerland;1. Groupe d''Etude des Interactions Hôte-Pathogène, EA 3142, UNIV Angers, UNIV Brest, Université Bretagne – Loire, Angers, France;2. Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Angers, France;3. Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, 50 Kharkivske Schose, Kyiv 02160, Ukraine;4. Institute of Cell Biology and Genetic Engineering of National Academy of Science of Ukraine, 48 Academika Zabolotnoho Str., Kyiv 03143, Ukraine;5. Institut des Molécules et Matériaux du Mans, UMR CNRS 6283, Université du Maine, Université Bretagne – Loire, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France;1. Singapore Well Testing Centre (SWTC), Schlumberger Oilfield (S) Pte Ltd, Singapore;2. Schlumberger Gould Research Centre, Cambridge, UK;3. Schlumberger Oilfield PetroTechnical Services, Richmond, CA, USA |
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| Abstract: | The pore space of reservoir rocks has a lot of active centers capable to form different types of bonds (from hydrogen to chemical). Therefore, almost any hydrocarbon can be adsorbed to a particular extent on the internal pore surface and form an adsorbed layer, which has a definite spatial configuration and makes contact with a certain part of the rock surface. Study of gas condensate reservoirs brings up the question of the composition of adsorbed hydrocarbons. The properties of such hydrocarbons in many giant gas condensate fields are of special interest as these compounds can serve as an additional source of resources after production of mobile-gas reserves. The performed study of gas condensate reservoirs of the Karachaganak, Astrakhan, and Yamburg fields has shown that their adsorbed hydrocarbons (adsorbed oil) have polar components with sulfur and oxygen atoms. |
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