A new low-interference characterization method for hydrocarbons occluded inside asphaltene structures |
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| Institution: | 1. Laboratoire des Fluides Complexes, UMR 5150 TOTAL-CNRS-UPPA, BP 1155, 64013 Pau Cedex, France;2. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, PR China;3. Laboratoire de Chimie Théorique et Physico-Chimie Moléculaire, UMR CNRS 5624, University of Pau, BP 1155, 64013 Pau Cedex, France;1. Department of Geology and Geography, West Virginia University, Morgantown, WV 26506, United States;2. National Energy Technology Laboratory-Regional University Alliance, United States;3. National Energy Technology Laboratory, U.S. Department of Energy, Pittsburgh, PA 15236, United States;1. Schlumberger Reservoir Laboratories, 2827 18 Street NE, Calgary, Alberta T2E 7K5, Canada;2. PRG, Geosciences Dept., University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada;1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China;2. College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China;3. Key Laboratory of Exploration Technologies for Oil and Gas Resources of Ministry of Education, Yangtze University, Wuhan 430100, China;4. Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;5. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;6. Petroleum Exploration and Production Research Institute of SINOPEC, Beijing 100083, China;1. Dept. of Geology, Kangwon National University, Chuncheon, Gangwon-do, Republic of Korea;2. Gas Hydrate R&D Organization(GHDO), Daejeon, Republic of Korea;1. Department of Mathematics, MANIT, Bhopal 462051, India;2. Department of Mathematics, SVNIT, Surat, India |
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| Abstract: | Some hydrocarbons occluded inside asphaltene structures can be considered to be “original oil”, and are very important especially for severely post-altered crude oil in related geochemical studies such as oil/oil, oil/source correlation. The use of oxidising reagents could properly release these occluded hydrocarbons, and make possible direct study of these compounds without interference from the segments chemically bonded to the asphaltene molecule. Interference from adsorbed and/or co-precipitated compounds can be avoided by applying an asphaltene purification procedure. |
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