Saturated brine well treating fluids and additives therefore

Details Saturated brine well treating fluids and additives therefore Saturated brine well treating fluids and additives therefore

1988-02-29

1989-04-18

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, 252 8512, 252 8514, C09K 702, E21B 4300

Patent

active

048225002

ABSTRACT:
Disclosed are well working and treating fluids comprising a saturated aqueous saline solution, a particulate water soluble salt which is insoluble in the saturated saline solution, xanthomonas gum, and an epichlorohydrin crosslinked hydroxypropyl starch derivative wherein the xanthomonas gum and the epichlorohydrin crosslinked hydroxypropyl starch derivative interact to synergistically enhance the suspension characteristics of the fluid and to decrease the fluid loss of the fluid.
Also disclosed is an additive composition for enhancing the suspension characteristics and reducing the fluid loss of saturated brine based well treating fluids comprising specified proportions of xanthomonas gum and epichlorohydrin crosslinked hydroxypropyl starch.

REFERENCES:
patent: 3988246 (1976-10-01), Hartfiel
patent: 4046197 (1977-09-01), Gruesbeck et al.
patent: 4175042 (1979-11-01), Mondshine
patent: 4369843 (1983-01-01), Mondshine
patent: 4422947 (1983-12-01), Dorsey et al.

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