Boring or penetrating the earth – Processes – Boring with specific fluid
Patent
1992-09-16
1994-04-19
Britts, Ramon S.
Boring or penetrating the earth
Processes
Boring with specific fluid
175206, 175207, E21B 2106
Patent
active
053037863
ABSTRACT:
Drill cuttings and similar earth materials are reduced in particle size, slurried and disposed of from a system which includes a ball mill, a reduced particle receiving tank, a grinder pump in communication with the receiving tank and separator screens for receiving a slurry of particles which have been reduced in size through the ball mill and the grinder pump. The underflow of the separator is suitable for discharge for final disposal, oversized particles are returned to the ball mill and the underflow discharged from the separator is controlled to maintain a certain level in the primary receiving tank. A secondary tank may receive a portion of the underflow to be mixed with viscosifiers and dispersants to maintain a suitable slurry composition for discharge. The system may be mounted on a semi-trailer and in weather-proof enclosures with the ball mill, receiving tanks and grinder pump on a first level and the separators on a second level. Receiving hoppers for wet drill cuttings as well as frozen or dried cuttings are provided and water or steam may be mixed with the cuttings and conveyed by a bucket elevator from the first level to the second level of the enclosures.
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SPE Paper No. 22092 "The Cuttings Grinder" by R. I. Smith, Society of Petroleum Engineers, Inc., 1991.
Anderson Theron W.
Chadwell Mark W.
Prestridge Mark L.
Ross Larry E.
Smith Gary A.
Atlantic Richfield Company
Britts Ramon S.
Martin Michael E.
Schoeppel Roger J.
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