SURFACTANT COMPOSITION FOR ENHANCED OIL RECOVERY
The present invention relates to a surfactant composition, comprising at least one first surfactant compound of formula (I): (I) R1-O-(CH2-CH(CH3)-O)x-(CH2-CH2-O)y-(CH2)w-SO3 -M+ wherein: R1 is a linear or branched alkyl radical having from 1 to 24 carbon atoms; x is a number from 2 to 24; y is a nu...
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Main Authors | , , , , , |
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Format | Patent |
Language | English French |
Published |
16.07.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to a surfactant composition, comprising at least one first surfactant compound of formula (I): (I) R1-O-(CH2-CH(CH3)-O)x-(CH2-CH2-O)y-(CH2)w-SO3 -M+ wherein: R1 is a linear or branched alkyl radical having from 1 to 24 carbon atoms; x is a number from 2 to 24; y is a number from 0 to 24; w is a number from 0 to 2; and M+ is a monovalent cation; and at least one second surfactant compound of formula (II): (II) R2-O-(CH2CH2O)z-H wherein: R2 is a linear or branched alkyl radical having from 1 to 18 carbon atoms; and z is a number from 1 to 30. The present invention further relates to a method for extracting hydrocarbons from a subterranean formation.
La présente invention concerne une composition tensioactive, comprenant au moins un premier composé tensioactif de formule (I) : (I) R1-O-(CH2-CH(CH3)-O)x-(CH2-CH2-O)y-(CH2)w-SO3 -M+ : R1 étant un radical alkyle linéaire ou ramifié ayant 1 à 24 atomes de carbone ; x étant un nombre de 2 à 24 ; y étant un nombre de 0 à 24 ; w étant un nombre de 0 à 2 ; et M+ étant un cation monovalent ; et au moins un second composé tensioactif de formule (II) : (II) R2-O-(CH2CH2O)z-H : R2 étant un radical alkyle linéaire ou ramifié ayant de 1 à 18 atomes de carbone ; et z étant un nombre de 1 à 30. La présente invention concerne en outre un procédé d'extraction d'hydrocarbures à partir d'une formation souterraine. |
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Bibliography: | Application Number: WO2019IB00095 |