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1. 发明公开

US20240182778A1 VISCOELASTIC SURFACTANT FORMULATIONS AND USE IN SUBTERRANEAN FORMATIONS 审中-公开
公开(公告)号：US20240182778A1
公开(公告)日：2024-06-06
申请号：US18517185
申请日：2023-11-22
申请人： ENERGY SOLUTIONS (US) LLC
发明人： Ahmed I. Rabie , Arnaud Cadix , Rose Ndong , Pascal Herve , Qi Qu , Jian Zhou
IPC分类号： C09K8/584
CPC分类号： C09K8/584 , C09K2208/30
摘要： A viscoelastic surfactant formulation may include a zwitterionic surfactant with a general formula (I):

where A is a C or SO, E1 is a linear or branched, saturated or unsaturated hydrocarbon chain having 1 to 4 carbon atoms, R1 and R2 are selected from alkyl groups of from 1 to about 4 carbon atoms, and R3 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms or is —(CH2)n NHC(O)—R4, where R4 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms and n ranges from 1 to 6; a synergistic co-surfactant containing a primary, secondary, or tertiary amine; amido group; amine oxide; or combinations thereof; and at least one miscible solvent.

2. 发明公开

US20240158689A1 SYNERGISTIC COMBINATION OF SURFACTANTS WITH FRICTION REDUCERS 审中-公开
公开(公告)号：US20240158689A1
公开(公告)日：2024-05-16
申请号：US18385512
申请日：2023-10-31
申请人： ENERGY SOLUTIONS (US) LLC
发明人： Céleste Odier , Aymerick Le Bris , Mikel Morvan
IPC分类号： C09K8/60 , C09K8/88 , E21B43/26
CPC分类号： C09K8/602 , C09K8/882 , E21B43/26 , C09K2208/28
摘要： A surfactant package may include an alpha olefin sulfonate primary surfactant; a betaine or sultaine co-surfactant; water; and optionally one or more solvents and/or co-solvents. A well treatment fluid may include an aqueous fluid, the surfactant package, and a friction reducer. A method of treating a portion of a subterranean formation may include introducing the well treatment fluid into a portion of the subterranean formation. A method of altering the wettability of a reservoir rock in a subterranean formation may include introducing a well treatment comprising the surfactant package into a portion of the subterranean formation

3. 发明授权

US11814579B2 Foaming compositions for enhanced oil recovery 有权
公开(公告)号：US11814579B2
公开(公告)日：2023-11-14
申请号：US17433163
申请日：2020-02-14
申请人： ENERGY SOLUTIONS (US) LLC , IFP Energies Nouvelles
发明人： Eloise Chevallier , Mikel Morvan , Vincent Miralles
IPC分类号： E21B43/16 , C09K8/594 , C09K8/584 , C09K8/588
CPC分类号： C09K8/594 , C09K8/584 , C09K8/588 , E21B43/166
摘要： The invention relates to a composition C which comprises, in an aqueous medium M:

surfactants suitable for creating a foam in the presence of a gas; and
polymers P based on acrylamide or acrylamido units, having a molecular mass of 1,000,000 to 20,000,000 g/mol;

or: composition C has a viscosity of less than 6 mPa·s; and

the content of polymer P is greater than the concentration limit beyond which the apparent viscosity of a foam obtained from composition C is greater by at least 10% than the apparent viscosity of a foam obtained from the same composition but deprived of polymers.

The invention further relates to the use of these compositions as foaming compositions for EOR.

4. 发明授权

US11649400B2 Polymer dispersion by controlled radical polymerization 有权
公开(公告)号：US11649400B2
公开(公告)日：2023-05-16
申请号：US17284393
申请日：2018-10-11
申请人： ENERGY SOLUTIONS (US) LLC
发明人： Zhenxing Cheng , Zhihua Zhang , Man Chen , Chee Fei Chin , David James Wilson
IPC分类号： C09K8/88 , C09K8/588
CPC分类号： C09K8/887 , C09K8/588 , C09K2208/28
摘要： A polymer dispersion may include a water soluble copolymer, a water soluble salt, a polyol, and water. A method of preparing a polymer dispersion may include controlled radical polymerization. A method of using the polymer dispersion as a friction reducer in oil field processes.

5. 发明授权

US11999903B2 Foaming formulations for enhanced oil recovery 有权
公开(公告)号：US11999903B2
公开(公告)日：2024-06-04
申请号：US17620896
申请日：2020-06-16
申请人： RHODIA OPERATIONS , IFP Energies Nouvelles
发明人： Eloise Chevallier , Mikel Morvan
IPC分类号： E21B43/16 , C09K8/584 , C09K8/594
CPC分类号： C09K8/594 , C09K8/584 , E21B43/166
摘要： The invention relates to a composition which comprises within an aqueous medium: —at least one ethoxylated alkylamine; and—at least one amphoteric or zwitterionic surfactant. The invention further relates to the use of said compositions as foaming compositions, in particular for EOR (enhanced oil recovery).

6. 发明公开

US20240018412A1 VISCOSIFYING FRICTION REDUCERS 审中-公开
公开(公告)号：US20240018412A1
公开(公告)日：2024-01-18
申请号：US18371726
申请日：2023-09-22
申请人： ENERGY SOLUTIONS (US) LLC
发明人： Genyao Lin , Louis Villafane , Kailas Sawant , Kevin Frederick , Shih-Ruey Chen
IPC分类号： C09K8/64 , C09K8/68 , E21B43/26 , C09K8/36 , C09K8/72 , C09K8/82
CPC分类号： C09K8/64 , C09K8/68 , E21B43/26 , C09K8/36 , C09K8/725 , C09K8/82 , C09K2208/14 , C09K2208/28
摘要： A water-in-oil emulsion that includes an oil phase (O) and an aqueous phase (A) at an O/A ratio of from about 1:8 to about 10:1; wherein the water-in-oil emulsion includes the oil phase as a continuous phase that includes an inert hydrophobic liquid, at least one water-insoluble hydrophobic monomer, and at least one surfactant, and the aqueous phase as a dispersed phase of distinct particles in the oil phase that includes water and a water soluble polymer that includes: (i) at least one acrylamide monomer and (ii) at least one acrylic acid monomer; wherein the water soluble polymer is present in an amount from about 10 to about 35 weight percent of the water-in-oil emulsion. Also provided is water-in-oil emulsion that includes an oil phase (O) and an aqueous phase (A) at an O/A ratio of from about 1:8 to about 10:1; wherein the water-in-oil emulsion includes the oil phase as a continuous phase that includes an inert hydrophobic liquid and at least one surfactant, and the aqueous phase as a dispersed phase of distinct particles in the oil phase that includes water and a water soluble polymer that includes: (i) at least one acrylamide monomer, (ii) at least one acrylic acid monomer, and (iii) at least one water soluble hydrophobic monomer; wherein the water soluble polymer is present in an amount from 10 to 35 weight percent of the water-in-oil emulsion. Methods of treating a portion of a subterranean formation with a water-in-oil emulsion are also provided.

7. 发明授权

US11795376B2 Viscosifying friction reducers 有权
公开(公告)号：US11795376B2
公开(公告)日：2023-10-24
申请号：US17007284
申请日：2020-08-31
申请人： ENERGY SOLUTIONS (US) LLC
发明人： Genyao Lin , Louis Villafane , Kailas Sawant , Shih-Ruey Chen , Kevin Frederick
IPC分类号： C09K8/64 , C09K8/68 , C09K8/36 , C09K8/72 , C09K8/82 , E21B43/26
CPC分类号： C09K8/64 , C09K8/36 , C09K8/68 , C09K8/725 , C09K8/82 , C09K2208/14 , C09K2208/28 , E21B43/26
摘要： A water-in-oil emulsion that includes an oil phase (O) and an aqueous phase (A) at an O/A ratio of from about 1:8 to about 10:1; wherein the water-in-oil emulsion includes the oil phase as a continuous phase that includes an inert hydrophobic liquid, at least one water-insoluble hydrophobic monomer, and at least one surfactant, and the aqueous phase as a dispersed phase of distinct particles in the oil phase that includes water and a water soluble polymer that includes: (i) at least one acrylamide monomer and (ii) at least one acrylic acid monomer; wherein the water soluble polymer is present in an amount from about 10 to about 35 weight percent of the water-in-oil emulsion. Also provided is water-in-oil emulsion that includes an oil phase (O) and an aqueous phase (A) at an O/A ratio of from about 1:8 to about 10:1; wherein the water-in-oil emulsion includes the oil phase as a continuous phase that includes an inert hydrophobic liquid and at least one surfactant, and the aqueous phase as a dispersed phase of distinct particles in the oil phase that includes water and a water soluble polymer that includes: (i) at least one acrylamide monomer, (ii) at least one acrylic acid monomer, and (iii) at least one water soluble hydrophobic monomer; wherein the water soluble polymer is present in an amount from 10 to 35 weight percent of the water-in-oil emulsion. Methods of treating a portion of a subterranean formation with a water-in-oil emulsion are also provided.

8. 发明公开

US20230332035A1 DILUTED CATIONIC FRICTION REDUCERS 审中-公开
公开(公告)号：US20230332035A1
公开(公告)日：2023-10-19
申请号：US18212595
申请日：2023-06-21
申请人： ENERGY SOLUTIONS (US) LLC
发明人： Kailas Sawant , Louis Villafane , Kevin Frederick , Shih-Ruey Chen , Randy Loeffler
IPC分类号： C09K8/36 , C09K8/64 , C09K8/72 , C09K8/82
CPC分类号： C09K8/36 , C09K8/64 , C09K8/725 , C09K8/82 , C09K2208/28
摘要： A water-in-oil emulsion, having an oil phase (0) and an aqueous phase (A) at an O/A ratio of from about 1:8 to about 10:1, may include the oil phase as a continuous phase that includes an inert hydrophobic liquid, and the aqueous phase as a dispersed phase of distinct particles in the oil phase that includes water, a water soluble polymer, and at least one surfactant: wherein the water soluble polymer includes from about 1 to about 60 weight percent of one or more cationic monomers, wherein the amount is by total weight of the water soluble polymer; wherein the water soluble polymer is present in an amount from about 5 to about 40 weight percent of the water-in-oil emulsion; and wherein an aqueous solution prepared by inverting the water- in-oil emulsion by adding it to water has at least comparable viscosity build to an aqueous solution made from a water-in-oil emulsion of the same composition containing 15 weight percent more water soluble polymer. Also provided is a method of treating a portion of a subterranean formation that includes the steps of: (a) providing a water-in- oil emulsion according to the present disclosure; (b) inverting the water-in-oil emulsion by adding it to water at from about 0.1 to about 5 gallons of water-in-oil emulsion per thousand gallons of water to form a friction reducing treatment solution containing from about 0.0005 weight percent to about 0.12 weight percent water soluble polymer based on the weight of the treatment solution; and (c) introducing the treatment solution into the portion of the subterranean formation.

9. 发明授权

US11753493B2 Amphiphilic block polymers soluble in strongly saline medium 有权
公开(公告)号：US11753493B2
公开(公告)日：2023-09-12
申请号：US17021205
申请日：2020-09-15
申请人： ENERGY SOLUTIONS (US) LLC
发明人： David James Wilson , Mikel Morvan , Max Chabert , Arnaud Cadix
IPC分类号： C08F293/00 , C08F212/08 , C09K8/588 , C09K8/68 , C08F220/18
CPC分类号： C08F293/005 , C09K8/588 , C09K8/68 , C08F212/08 , C08F220/1812 , C08F2438/03
摘要： The present invention relates to the preparation of polymers that are of use in particular as a rheology agent, and are suitable for use in very concentrated saline media, which comprises a step of micellar radical polymerization in which are brought into contact, in an aqueous medium: —hydrophilic monomers; —hydrophobic monomers in the form of a micellar solution, containing micelles comprising these hydrophobic monomers; —a radical polymerization initiator; and —preferably an agent for controlling radical polymerization, wherein said micelles comprise at least one surfactant of amphoteric nature. The polymers obtained according to the invention are in particular of use for enhanced oil recovery.

10. 发明授权

US11649709B2 Polymer blends for stimulation of oil and gas wells 有权
公开(公告)号：US11649709B2
公开(公告)日：2023-05-16
申请号：US17205975
申请日：2021-03-18
申请人： Energy Solutions (US) LLC
发明人： Subramanian Kesavan , Genyao Lin , Jian Zhou , Hoang Van Le , Changmin Jung , Qi Qu
IPC分类号： E21B43/26 , C09K8/68 , C09K8/035 , C09K8/88 , C09K8/90
CPC分类号： E21B43/26 , C09K8/035 , C09K8/68 , C09K8/685 , C09K8/882 , C09K8/887 , C09K8/90 , C09K2208/26 , C09K2208/28
摘要： Compositions and methods for fracturing a subterranean formation are presented. Also provided are compositions and methods for reducing friction-related losses in a well treatment fluid. In general, the compositions include a copolymer that includes one or more vinylphosphonic acid (“VPA”) monomers.

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