Invention Grant
- Patent Title: 3 in 1 foam formulation for enhanced oil recovery including conformance control, ultra-low interfacial tension, and wettability alteration
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Application No.: US16990653Application Date: 2020-08-11
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Publication No.: US11078405B2Publication Date: 2021-08-03
- Inventor: Ayrat Gizzatov , Shehab Alzobaidi , Amr Abdel-Fattah
- Applicant: SAUDI ARABIAN OIL COMPANY
- Applicant Address: SA Dhahran
- Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee Address: SA Dhahran
- Agency: Bracewell LLP
- Agent Constance Gall Rhebergen
- Main IPC: E21B43/16
- IPC: E21B43/16 ; C09K8/594 ; C09K8/584
Abstract:
Embodiments of the disclosure provide compositions and methods suitable for injection of a nanosurfactant-based foam composition into a hydrocarbon-bearing formation for enhanced recovery operations. The nanosurfactant-based foam composition includes a gaseous component and nanoassemblies. The nanoassemblies contain a petroleum sulfonate surfactant, mineral oil, and a zwitterionic co-surfactant.
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