Enhanced surfactant polymer flooding processes for oil recovery in carbonate reservoirs

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United States of America Patent

PATENT NO 11041109
APP PUB NO 20190194524A1
SERIAL NO

15855438

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Abstract

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A composition for use in surfactant polymer flooding processes in a carbonate reservoir, the composition comprising a surfactant, the surfactant operable to reduce interfacial tension, a polymer, the polymer operable to increase the viscosity of the composition, and a tailored water, the tailored water operable to alter a wettability of the in-situ rock, where the tailored water has a total dissolved solids of between 5,000 wt ppm and 7,000 wt ppm, where the total dissolved solids comprises a salt, where the composition has a viscosity between 3 cP and 100 cP.

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Patent Owner(s)

Patent OwnerAddress
SAUDI ARABIAN OIL COMPANY1 EASTERN AVENUE DHAHRAN 31311

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Al-Sofi, Abdulkareem M Dhahran, SA 19 66
Al-Yousef, Ali Abdallah Dhahran, SA 61 153
Ayirala, Subhash Dhahran, SA 22 44
Wang, Jinxun Dhahran, SA 25 37

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