Boring or penetrating the earth – With above-ground means for preparing or separating drilling...
Patent
1986-05-16
1987-09-29
Novosad, Stephen J.
Boring or penetrating the earth
With above-ground means for preparing or separating drilling...
175 66, 209 44, 210388, E21B 718
Patent
active
046963537
ABSTRACT:
A mud cleaning system for recovering barite from drilling mud coming from an oil well, the mud being made up essentially of barite particles having a specific gravity of 4.2 or more, and a particle size mostly finer than 200 mesh, drill cuttings having a specific gravity of 2-3, and varying particle sizes ranging from about 200 mesh to 1/2 inch or more, and water. This system includes a first sieve bend (32), a second screen member (10) in series therewith, and a spiral separator (54), in series with the screens. The sieve bend is provided with a vibrator (18, 20), and water sprays (16, 34) act in conjunction with the sieve bend and the second screen to aid in the separation. The slurry leaving the spiral separator is screened to remove the ultra fine particles and the water is recycled. The system inherently washes potentially environmentally hazardous substances off the drill cuttings prior to their discharge from the system. The flow of slurry from the sieve bend to the screen or spiral separator will be a function of the depth of well and barite usage.
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Boesger Leonard E.
Elmquist Steven A.
Habelt William W.
Neuder William P.
Novosad Stephen J.
Olson Robert L.
W. S. Tyler Incorporated
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