Method of using a spacer for well control fluid

Details Method of using a spacer for well control fluid Method of using a spacer for well control fluid

1982-05-24

1984-05-01

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166294, 175 72, 252 85LC, E21B 33138

Patent

active

044455763

ABSTRACT:
A spacer comprising the water-in-oil emulsion portion of a shear-thickening well control fluid is used to separate drilling mud from the shear-thickening fluid in the drill pipe in the well bore to avoid premature thickening of the shear thickening fluid in the drill pipe. The shear-thickening well control fluid comprises a water-in-oil emulsion in which is dispersed granular particles of hydratable, water expandable clay.

REFERENCES:
patent: 3625286 (1971-12-01), Parker
patent: 3688845 (1972-09-01), Messenger
patent: 3724564 (1973-04-01), Messenger
patent: 3850248 (1974-11-01), Carney
patent: 3876006 (1975-04-01), Messenger
patent: 4108779 (1978-04-01), Carney
patent: 4173999 (1979-11-01), Messenger
patent: 4223732 (1980-09-01), Carriay et al.
patent: 4233165 (1980-11-01), Salathiel et al.
patent: 4359391 (1982-11-01), Salathiel et al.
patent: 4397354 (1983-08-01), Dawson et al.

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