Recovery Factors of Oil Resources in China |
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Authors: | Liu Chenglin Che Changbo Zhu Jie Yang Hulin Fan Bojiang |
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Institution: | (1) State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, 18 Fuxue Road, Changping District, Beijing, 102249, P.R. China;(2) Oil and Gas Strategy Research Center of the Ministry of Land and Resources, 17 Yangrou Hutong, Xicheng District, Beijing, 100034, P.R. China |
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Abstract: | This paper provides a new method to estimate recovery factors of oil resources. The China National Petroleum Assessment (2003–2007)
(CNPA 2007) evaluates in-place oil resources and applies the recovery factor (RF) to estimate recoverable oil resources. The
RF of oil resources plays an important role in the CNPA 2007. Based on the geological features, 24 types of oil assessment
units are defined, such as the Mesozoic rift unit, the Mesozoic and Cenozoic foreland unit, etc. Through the recovery factor
statistics of oil reserves (discovered) in different accumulations, as well as the potential analyses of enhanced petroleum
recovery, appropriate RF valuing standards of oil resources (discovered and undiscovered) in different assessment units are
developed. Calculation methods of oil resource RFs are established, including the appraisal standards, scoring, and calculation
steps of oil resource RFs. Through the case studies, the valuing and appraisal standards of oil resource RFs are verified.
Robust appraisal standards allow the RF method to be a valuable tool to effective assessment of China’s recoverable oil resources. |
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