High density well drilling, completion and workover brines, flui

Details High density well drilling, completion and workover brines, flui High density well drilling, completion and workover brines, flui

1984-05-21

1985-11-19

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85C, 252 855R, C09K 700

Patent

active

045540810

ABSTRACT:
High density well drilling, completion and workover brines having low fluid loss to subterranean formations when in contact therewith are provided comprised of water, one or more inorganic salts, and an additive for reducing fluid loss. The additive is comprised of water soluble binary or ternary copolymers formed from vinyl monomers. Methods of use are also provided.

REFERENCES:
patent: 3679000 (1972-07-01), Kaufman
patent: 4046197 (1977-09-01), Gruesbeck et al.
patent: 4293427 (1981-10-01), Lucas et al.
patent: 4330414 (1982-05-01), Hoover
patent: 4404111 (1983-09-01), Bi et al.
patent: 4461884 (1984-07-01), Peiffer et al.
patent: 4490261 (1984-12-01), Heilweil

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