Viscoelastic surfactant compatible acid corrosion inhibitor and methods of using same
AssigneeBaker Hughes, A Ge Company, LLC
InventorsJINGSHE SONG, MICHAEL L. WALKER, HAFID J. HERNANDEZ, WILLIAM STEVENS
Life of this patent
Estimating the term…
Abstract
An acid corrosion inhibitor is provided that is compatible with viscoelastic surfactants and useful for enhancing the production of hydrocarbon bearing formations. The viscoelastic surfactant can used in fracturing of subterranean formations penetrated by an oil or gas well or in connection with acidizing or other treatment processes. The acid corrosion inhibitor can include a viscoelastic surfactant and an active inhibition compound which can comprise a reaction product of thiourea, paraformaldehyde and acetophenone, or amines (linear or cyclic), amine quaternaries (linear or cyclic) or combinations or mixtures thereof.
Claims21
An acid corrosion inhibitor for use with a viscoelastic surfactant fluid, the acid corrosion inhibitor comprising:
- an active inhibition compound;
- and a viscoelastic surfactant.
A viscoelastic surfactant fluid for enhancing the productivity of a hydrocarbon bearing subterranean formation, the viscoelastic surfactant fluid comprising an acid corrosion inhibitor comprising an active inhibition compound and a compatible viscoelastic surfactant.
A method of treating a hydrocarbon bearing subterranean formation, the method comprising:
- introducing a treatment fluid into the subterranean formation, the treatment fluid comprising a viscoelastic surfactant fluid and an acid corrosion inhibitor that is compatible with the viscoelastic surfactant fluid, the acid corrosion inhibitor comprising an acid, an erucamidopropyl hydroxypropylsultaine, and a reaction product of thiourea, formaldehyde and acetophenone;
- and
- treating the subterranean formation with the treatment fluid.
Dependencies are inferred from the claim text.