Desorbants for enhanced oil recovery

US9598629B2 · kind B2 · utility

Assignees

• RHODIA OPERATIONS · FR
• INSTITUT FRANCAIS DU PETROLE · FR

Inventors

• Mikel Morvan · Princeton, US
• Patrick Moreau · Saint-Jean-le-Blanc, FR
• René Tabary · Saint-Germain-en-Laye, FR
• Brigitte Bazin · Rueil-Malmaison, FR

Key dates

• Filing date: Jan 25, 2013
• Grant date: Mar 21, 2017
• Expiry date: Jan 25, 2033

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/16
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Provided is a process of enhanced oil recovery from an oil reservoir of an underground formation by using a compound of formula (I) to inhibit the phenomena of retention of anionic surfactants within an oil-bearing reservoir, such as a carbonate or clay reservoir: R—O—(—CH2—CH(—CH3)—O—)m—(—CH2—CH2—O—)n—H, wherein: R is a hydrocarbon-based group comprising from 6 to 40 carbons; m ranges from 0 to 20; n is greater than m and ranges from 5 to 40.