C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 33/24 (2006.01) C08L 33/02 (2006.01) C08L 33/08 (2006.01) C08L 33/14 (2006.01) C08L 39/02 (2006.01) C09K 8/584 (2006.01) C09K 8/588 (2006.01) E21B 43/20 (2006.01)
Patent
CA 2667286
The present invention relates compositions and methods for enhanced oil recovery. The method is directed to employing a water-soluble fThe present invention relates compositions and methods for enhanced oil recovery (EOR). The method is directed to employing a water-soluble functional polymeric surfactant (FPS), with a medium IFT value, preferably ranged from about 0.1 to about15 dyne/cm between water phase containing polymeric surfactant and hydrocarbon phase, for recovery of hydrocarbons from subterranean formations. The FPS solution demonstrates a strong interaction with oil and the great potential to increase both volumetric sweep efficiency and microscopic displacement efficiency in EOR.
La présente invention concerne des compositions et des procédés permettant de renforcer l'extraction de pétrole (EOR). Le procédé concerne l'utilisation d'un agent tensio-actif polymère fonctionnel soluble dans l'eau (FPS) qui présente un indice IFT moyen, de préférence compris entre environ 0,1 et environ 15 dynes/cm entre la phase aqueuse qui contient l'agent tensio-actif polymère et la phase d'hydrocarbures, pour extraire des hydrocarbures de formations souterraines. La solution de FPS entre en forte interaction avec le pétrole et présente une forte capacité à augmenter à la fois le rendement de balayage volumétrique et le rendement de déplacement microscopique en EOR.
Tang Yongchun
Zhang Rui
Hybo Inc.
Smart & Biggar
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