Oil-based fluid loss compositions
AssigneeHalliburton Energy Services, Inc.
InventorsWilliam Walter Shumway, Hui Zhou
Life of this patent
Estimating the term…
Abstract
Compositions with modified tannins can be used in wellbore operations. A composition can include an oil, a modified tannin, a dimer fatty acid, an aqueous liquid, and an emulsifier, where the material is injectable into a wellbore. The modified tannin may be treated with a primary amine, secondary amine, tertiary amine, or quaternary amine. The compositions may be used as drilling fluids having enhanced yield point and fluid loss control properties.
Claims20
A composition comprising an oil, a modified tannin, a dimer fatty acid, an aqueous liquid, and an emulsifier, the composition being injectable into a wellbore.
A system comprising:
- one or more pumps to position a composition into a wellbore, the composition comprising an oil, a modified tannin, a dimer fatty acid, an aqueous liquid, and an emulsifier.
A method comprising:
- providing a composition comprising an oil, a modified tannin, a dimer fatty acid, an aqueous liquid, and an emulsifier;
- and
- contacting a wellbore with the composition.
Dependencies are inferred from the claim text.