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US 2024/0368453 A1Published application
Ultra-short hydrophobe alkoxylates as surfactants
AssigneesUltimate Eor Services LLC, Harcros Chemicals Inc.
InventorsUpali Peter WEERASOORIYA, Don Pathma Jith LIYANAGE, Karasinghe Arachchige Nadeeka UPAMALI, Christopher James BRITTON, Robert Matthew DEAN, John BOOREM, Kurt CHESHIRE
Life of this patent
Estimating the term…
Abstract
Disclosed are surfactants, as well as methods of using thereof in oil and gas operations.
Claims21
A compound defined by Formula I
- wherein
- BO represents —CH2—CH(ethyl)-O— or —CH3CH(O—)CH3;
- PO represents —CH2—CH(methyl)-O—;
- EO represents —CH2—CH2—O—;
- R1 represents a C1-C8 alkyl group (e.g., a C1-C6 alkyl group) or a cyclic structure derived from alkoxylation of an alkyl monoglucoside, an alkyl polyglucoside, a monosaccharide, a disaccharide, or a polysaccharide;
- n is an integer from 2 to 6;
- Q is hydrogen, —SO3M+, —SO3H, CH2CH(OH)CH2—SO3M+, CH2CH(OH)CH2—SO3H, —CH2C(O)O−M+, or —CH2C(O)OH;
- M+, when present, is a cation;
- x is an integer from 0 to 15;
- y is an integer from 11 to 60;
- and
- z is an integer from 0 to 100.
9 more elements
15-37. (canceled)
A compound defined by Formula IX
- wherein
- BO represents —CH2—CH(ethyl)-O— or —CH3CH(O—)CH3;
- PO represents —CH2—CH(methyl)-O—;
- EO represents —CH2—CH2—O—;
- R2 is absent, —((BO)x—(PO)y-(EO)z-)m-A, or —CH2R3;
- R3 is C1-C10 alkoxy, aryloxy, or —C(O)O−M+, or —C(O)OH;
- m is an integer from 1 to 3;
- p is an integer from 2 to 3;
- A is hydrogen, —SO3M+, —SO3H, CH2CH(OH)CH2—SO3M+, CH2CH(OH)CH2—SO3H, —CH2C(O)O−M+, or —CH2C(O)OH;
- M+, when present, is a cation;
- x is an integer from 0 to 15;
- y is an integer from 11 to 60;
- and
- z is an integer from 0 to 100,
- wherein when R2 is absent, p is 3.
12 more elements
Dependencies are inferred from the claim text.