The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Dec. 09, 2020
Totalenergies Onetech, Courbevoie, FR;
TOTALENERGIES ONETECH, Courbevoie, FR;
Abstract
A process for extracting a crude oil from a rock formation containing crude oil comprises the following steps: The modified alkyl phenol-aldehyde resin may be obtained by Mannich reaction of an alkylphenol-aldehyde condensation resin, with at least one C1-C8 aldehyde and/or at least one C1-C8 ketone, and at least one hydrocarbon compound having at least one alkyl polyamine group having between 1 and 30 carbon atoms. The alkylphenol-aldehyde condensation resin may be obtained by condensation of at least one alkylphenol substituted by at least one linear or branched alkyl group having 1 to 30 carbon atoms, with at least one compound selected from C1-C8 aldehydes and/or C1-C8 ketones.
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