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US 2025/0059435 A1Published application
Single-phase retarded acid based on an amphoteric surfactant
AssigneeSchlumberger Technology Corporation
InventorsSamuel Danican, Haiyan Zhao, Patrice Abivin
Life of this patent
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Abstract
Compositions for matrix acidizing and fracture acidizing contain water, an acid, and an acid retarding agent that includes an alkyl sulfobetaine. The composition may be prepared and injected into a wellbore penetrating a subterranean formation.
Claims18
A composition, comprising:
- water;
- an acid;
- and
- an acid retarding agent comprising an alkyl sulfobetaine.
1 more element
A method, comprising:
- preparing a composition comprising water, an acid and an acid retarding agent comprising an alkyl sulfobetaine;
- and
- injecting the composition into a wellbore penetrating a subterranean formation.
Dependencies are inferred from the claim text.