Invention Grant
- Patent Title: Formulations for enhanced oil recovery comprising sulfonates
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Application No.: US17013964Application Date: 2020-09-08
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Publication No.: US11692124B2Publication Date: 2023-07-04
- Inventor: Olivier Back , Remy Leroy , Mikel Morvan , Patrick Moreau , Philippe Marion
- Applicant: RHODIA OPERATIONS
- Applicant Address: FR Paris
- Assignee: RHODIA OPERATIONS
- Current Assignee: RHODIA OPERATIONS
- Current Assignee Address: FR Lyons
- Agency: Osha Bergman Watanabe & Burton LLP
- Priority: EP 305707 2015.05.07
- Main IPC: C09K8/584
- IPC: C09K8/584 ; C07C309/07 ; E21B43/16
Abstract:
Compositions suitable for enhanced oil recovery comprising
a) a mixture of α-sulfocarbonyl compounds of formulae (1) and (2) in a mixture ratio (1) to (2) of from 1:99 to 99:1
wherein
R1, R3 and R5, which may be the same or different at each occurrence, are hydrogen or a linear or branched alkyl chain having 1 to 20 carbon atoms,
R2 and R4, which may be the same or different at each occurrence, may be a linear or branched alkyl group having 4 to 24 carbon atoms and in which the alkyl chain may comprise one or more cycloaliphatic groups, and
X is H or a metal forming a salt with the sulfonate group, and
b) a salt containing aqueous solution.
a) a mixture of α-sulfocarbonyl compounds of formulae (1) and (2) in a mixture ratio (1) to (2) of from 1:99 to 99:1
wherein
R1, R3 and R5, which may be the same or different at each occurrence, are hydrogen or a linear or branched alkyl chain having 1 to 20 carbon atoms,
R2 and R4, which may be the same or different at each occurrence, may be a linear or branched alkyl group having 4 to 24 carbon atoms and in which the alkyl chain may comprise one or more cycloaliphatic groups, and
X is H or a metal forming a salt with the sulfonate group, and
b) a salt containing aqueous solution.
Information query
