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US 7,067,461 B2Granted
Water-based drilling fluid additive containing graphite and carrier
AssigneeAlpine Mud Products Corporation
InventorJerry Rayborn
Life of this patent
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Abstract
A drilling fluid additive is provided wherein the additive is manufactured by a method comprised of admixing graphite with at least one carrier such as a polypropylene glycol or oil to create a suspended mixture, and allowing the surface of the graphite to be pre-wet with the carrier prior to adding the mixture to a drilling fluid.
Claims28
A drilling fluid additive comprising:
- graphite, copolymer beads, uintaite and at least one carrier, said carrier is selected from a group consisting of oils, esters, glycols, cellulose, olefins and mixtures thereof.
A drilling fluid additive mixture manufactured by a method comprising of:
- admixing graphite with at least one carrier to create a suspended mixture, said carrier being selected from a group consisting of oils, glycols, esters, olefins, cellulose and mixtures thereof, and admixing copolymer beads and uintaite to said mixture, said suspended mixture allowing the surface of said graphite, said uintaite and said polymer beads to be pre-wet with said carrier prior to adding said mixture to a drilling fluid.
A method of manufacturing a drilling fluid additive mixture, said method comprising:
- shearing graphite with at least one carrier to create a suspended mixture to thereby allow the surface of said graphite to be pre-wet with said carrier, said carrier is selected from a group consisting of oils, esters, glycols, cellulose, olefins and mixtures thereof;
- and
- admixing copolymer beads to said suspended mixture.
A drilling fluid additive comprising:
- a first mixture of graphite and oil in combination with a second mixture of graphite and glycol, wherein said oil pre-coats said graphite in said first mixture and said glycol pre-coats said graphite in said second mixture;
- and copolymer beads and uintaite.
Dependencies are inferred from the claim text.