Acid sensitive emulsifier for use in subterranean treatment operations
AssigneeHalliburton Energy Services, Inc.
InventorsLi Guo, William Walter Shumway, Jay Paul Deville, Kingsley Ihueze Nzeadibe
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Abstract
Methods and systems for using an invert emulsion fluid that is beneficial in the drilling, completing and working over of subterranean wells are provided. In some embodiments, the method includes: preparing a treatment fluid including an invert emulsion, wherein the invert emulsion further includes an aqueous dispersed phase, an oleaginous continuous phase, and an amine surfactant emulsifier and placing the treatment fluid in a wellbore penetrating at least portion of a subterranean formation.
Claims20
A method comprising:
- preparing a treatment fluid comprising an invert emulsion, wherein the invert emulsion comprises an aqueous internal phase, an oleaginous continuous phase, and an amine surfactant emulsifier having the molecular structure
- wherein n is an integer in the range of from 1 to 5 and R is a C10 to C25 hydrocarbon chain;
- and
- placing the treatment fluid in a wellbore penetrating at least portion of a subterranean formation.
A method comprising:
- providing a drilling fluid comprising an invert emulsion, wherein the invert emulsion further comprises an aqueous internal phase, an oleaginous continuous phase, and an amine surfactant having the molecular structure
- wherein n is an integer in the range of from 1 to 5 and R is a C10 to C25 hydrocarbon chain;
- and
- using the drilling fluid to drill a wellbore penetrating at least a portion of a subterranean formation.
An invert emulsion comprising:
- an aqueous internal phase;
- an oleaginous continuous phase;
- and
- an amine surfactant emulsifier having the structure
- wherein n is an integer in the range of from 1 to 5 and R is a C10 to C25 hydrocarbon chain.
Dependencies are inferred from the claim text.