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US 2016/0102242 A1Published application
Treatment fluid and method
AssigneeSchlumberger Technology Corporation
InventorsAndrey Fedorov, Bernhard Lungwitz, Olesya Levanyuk, Philippe Enkababian
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Abstract
A treatment fluid made of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor. A method of combining a mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor, in a fluid mixture. A method of contacting a low-temperature formation with a fluid mixture of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor.
Claims13
A method, comprising:
- contacting a carbonate formation at a temperature below 40° C. with a treatment fluid comprising an aqueous mixture of a viscoelastic surfactant, a non-fluoride acid and at least one of a fluoride source and a chelant.
-20. (canceled)
Dependencies are inferred from the claim text.