Dispersant coated mineral fiber in a drilling fluid

Details Dispersant coated mineral fiber in a drilling fluid Dispersant coated mineral fiber in a drilling fluid

1988-01-04

1988-08-30

Lindsay, Robert L.

Compositions

Leather or fur treating

65 31, 252 8512, 427220, C09K 300

Patent

active

047675497

ABSTRACT:
An oil well drilling fluid containing mineral fibers which have been coated individually with a dispersant is better able to plug voids and fractures in the rock being drilled than those of the prior art because the mineral fibers are thoroughly dispersed. The fluid is substantially free of nodulated fibers. A dispersant such as a polyethoxylated quaternary ammonium salt is added to a stream of air which attenuates streams of molten slag into fibers. The fibers are uniformly coated with the dispersant and nodules thereof uravel easily when placed in a drilling fluid.

REFERENCES:
patent: 2774103 (1956-12-01), Graybeal
patent: 3343933 (1967-09-01), Mullen et al.
patent: 3723311 (1973-03-01), Lammus et al.
patent: 3726796 (1973-04-01), Schweiger
patent: 4626289 (1986-12-01), Hsu
Kirk & Othmer, "Encyclopedia of Chem. Tech", 3rd Ed. pp. 521-531, John Wiley & Sons.

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