Stabilized colloidal and colloidal-like systems
AssigneeMasi Technologies, L.L.C.
InventorsFrederick B. Growcock, Gerard A. Simon
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Abstract
The present invention generally relates to improved compositions comprising stabilized collodial or colloidal-like phases (e.g., emulsions, aphrons) and methods of using those compositions. The compositions generally comprise an aqueous continuous phase, one or more viscosifiers, one or more surfactants, aphrons and one or more Aphron Stabilizers. The compositions of the present invention possess aphrons with significantly increased half-life and enhanced ability to seal permeable formations, and are capable of being used in high pressure applications
Claims40
A drilling or servicing fluid composition comprising:
- an aqueous liquid as the continuous phase;
- one or more surfactants;
- aphrons;
- and
- one or more aphron stabilizers, wherein at least one of said aphron stabilizers produces an average aphron half-life of greater than or equal to about 20 hours.
A process for drilling or servicing a wellbore in a subterranean formation wherein a drilling or servicing fluid is circulated in the wellbore, comprising:
- utilizing as the drilling or servicing fluid an aqueous liquid as the continuous phase, one or more surfactants, aphrons, and one or more aphron stabilizers, wherein at least one of said aphron stabilizers produces an average aphron half-life of greater than or equal to about 20 hours.
A drilling or servicing fluid composition comprising:
- an aqueous liquid as the continuous phase;
- one or more surfactants;
- aphrons;
- and
- one or more aphron stabilizers, wherein at least one of said aphron stabilizers comprises polyvinyl alcohol.
Dependencies are inferred from the claim text.