Review An Analysis of the Intellectual Property Market in the Field of Enhanced Oil Recovery Methods Violetta A. Vasilenko 1 , Vasili A. Vasilenko 1, Evgenia A. Skichko 1, Dmitriy A. Sakharov 2, Ruslan R. Safarov 3, Mariia G. Gordienko 3,* and Andrei V. Oleinik 4 1 Department of Informational Computing Technologies, D. Mendeleev University of Chemical-Technology of Russia, 9, Miusskaya sq., 125047 Moscow, Russia;
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[email protected]; Tel.: +7-903-751-9120 Abstract: The article presents an analysis of the intellectual property market in the field of enhanced oil recovery (EOR) methods. The search retrospectively covers the period from 2010 to 2020. Russia, China, and the United States are the leading countries in enhanced oil recovery methods. Canada, Germany, and Saudi Arabia also have a high level of patent activity compared with other countries. Semantic and statistical analysis of the obtained sample of documents made it possible to highlight the areas of intensive patenting, high competitiveness, as well as mainstream methods of enhanced oil recovery. The analysis of the leading companies’ patent portfolios revealed the similarities and differences in their structure.