Invention Grant
- Patent Title: Low temperature stabilized foam-forming composition for enhanced oil recovery
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Application No.: US14780228Application Date: 2014-05-22
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Publication No.: US10336935B2Publication Date: 2019-07-02
- Inventor: David L. Frattarelli , Sayeed Abbas , Troy E. Knight , Aaron W. Sanders , Christopher J. Tucker , Caroline Woelfle-Gupta
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- International Application: PCT/US2014/039145 WO 20140522
- International Announcement: WO2014/193731 WO 20141204
- Main IPC: C09K5/00
- IPC: C09K5/00 ; C09K8/584 ; C09K8/594 ; E21B43/16

Abstract:
This invention relates to a foam-forming composition having good low temperature stability and method of use thereof for enhanced oil recovery. Said foam-forming composition comprises an anionic sulfonate surfactant, preferably an alpha-olefin sulfonate, a alkyl ether solvent, and water and is preferably stable to at least −5 C. A preferred alkyl ether solvent has the formula C8H18O3, C8H16O3, or mixtures thereof. Preferred alpha-olefin sulfonate have 10 to 18 carbons, preferably 12 carbons. A preferred method for recovering oil from a reservoir comprises the periodic injection of gas and said foam-forming composition into the reservoir and contacting the oil in the reservoir with the foam so as to assist in the recovery of oil from the reservoir.
Public/Granted literature
- US20160083642A1 A LOW TEMPERATURE STABILIZED FOAM-FORMING COMPOSITION FOR ENHANCED OIL RECOVERY Public/Granted day:2016-03-24
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