Fluorosurfactant extraction process for carbonate reservoirs

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United States of America Patent

PATENT NO 9920238
SERIAL NO

15493474

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Abstract

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A process for recovering oil from a carbonate reservoir of high salinity, wherein supercritical CO2 floodings are combined with a fluorosurfactant in the tertiary recovery. Embodiments include alternating injection and co-injection schemes of the supercritical CO2 and the fluorosurfactant. A stable fluorosurfactant-CO2 foam that is not susceptible to the harsh conditions of the reservoir (temperature, pressure and salinity) can be successfully generated, leading to a reduction in the mobility of CO2, an increase in the mobility of the reservoir oil, higher contact between the injected fluid with the oil and a better sweep efficiency of the oil.

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Patent Owner(s)

  • KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jangda, Zaid Zaffar Dhahran, SA 2 12
Sultan, Abdullah S Dhahran, SA 11 19

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