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US 9,850,418 B2Granted
Methods and compositions for use in oil and/or gas wells
AssigneeFlotek Chemistry, LLC
InventorsLakia M. Champagne, Angus Fursdon-Welsh
Life of this patent
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Abstract
Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives.
Claims27
A composition for use in an oil and/or gas well having a wellbore, comprising a fluid and an emulsion or a microemulsion, wherein the emulsion or the microemulsion comprises:
- water;
- an alcohol;
- a solvent comprising a terpene;
- and
- a surfactant having a structure as in Formula II:
- wherein each of R7, R8, R9, R10, and R11 are the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, and —CH═CHAr, provided at least one of R7, R8, R9, R10, and R11 is —CH═CHAr;
- Ar is an aryl group;
- Y− is an anionic group;
- X+ is a cationic group;
- n is 1-100;
- and
- m is 1.
9 more elements
Dependencies are inferred from the claim text.