High temperature stable aqueous brine fluids viscosified by N-he

Details High temperature stable aqueous brine fluids viscosified by N-he High temperature stable aqueous brine fluids viscosified by N-he

1983-05-02

1984-11-06

Morris, Theodore

Compositions

Leather or fur treating

252 85C, 252 855R, C09K 700, C09K 300

Patent

active

044811209

ABSTRACT:
There is provided an aqueous brine fluid containing an N-heterocyclic organophosphorus compound which serves to increase the viscosity thereof. These viscosified brine fluids are particularly useful in drilling operations, most especially as solids-free drilling, completion, packer and workover fluids for drilling operations involving deep wells.

REFERENCES:
patent: 3997293 (1976-12-01), Redmore
patent: 4101654 (1978-07-01), Redmore
patent: 4209449 (1980-06-01), Mayhew et al.
patent: 4215064 (1980-07-01), Lindemann et al.

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