Drilling fluids, drilling fluids additives and methods...

Details Drilling fluids, drilling fluids additives and methods... Drilling fluids, drilling fluids additives and methods...

2006-07-25

2006-07-25

Tucker, Philip C. (Department: 1712)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C166S304000, C166S311000, C166S312000

Reexamination Certificate

active

07081438

ABSTRACT:
Fluids useful in oil well drilling operations are described. The fluids comprise standard viscosifying and fluid loss control additives along with phosphonates or phosphate esters of organic ligands. The addition of the phosphonates or phosphate esters at effective concentrations prevents the adherence of heavy oil and heavy oil laden drill cuttings to drill pipe strings and well bore casings.

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