Liquid purification or separation – Processes – Separating
Patent
1978-08-10
1981-10-27
Adee, John
Liquid purification or separation
Processes
Separating
210788, 2105121, 233 19R, B04B 500
Patent
active
042972256
ABSTRACT:
The invention relates to process and apparatus for reducing the viscosity and gel strength of drilling fluids, or muds, without any necessity of introducing additives, or chemicals, into the mud. It embodies, in particular, (i) a process wherein a hydratable clay containing drilling fluid, or mud, is contacted with a revolving, or otherwise moving, surface at an angle of contact sufficient to impart adequate compression or sheer force, or both, to dewater the hydrated clay constituent, or constituents, of said drilling fluid, or mud; and (ii) an apparatus, or inertial device, constituted generally of structure inclusive of a revolvable cone within the inner surface of which a stream or spray of said hydratable clay-containing drilling fluid, or mud, can be impinged or contacted, when the cone is revolved at sufficient speed, to impart adequate compression or sheer force, or both, to dewater the hydrated clay constituent, or constituents, and thereby reduce the viscosity and gel strength of the drilling fluid, or mud.
REFERENCES:
patent: 2422464 (1947-06-01), Bartholomew
patent: 2941783 (1960-06-01), Stinson
patent: 3126337 (1964-03-01), Smith
patent: 3399773 (1968-09-01), Read
Adee John
Proctor Llewellynn A.
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