Cleaning and liquid contact with solids – Apparatus – With means for collecting escaping material
Patent
1993-11-10
1995-12-12
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
With means for collecting escaping material
1341042, 134115G, 134167C, 134181, 122392, B08B 902
Patent
active
054740975
ABSTRACT:
A pipe and tube cleaning system, particularly useful for cleaning scale from pipes and tubes used in oil and gas production operations and containing naturally occurring radioactive materials in the scale, includes an elongated closable tub for supporting a section of pipe or tube for combined hydraulic jet blast and mechanical cutting and cleaning action by a lance insertable within the pipe to remove scale from the interior of the pipe. A slurry of particulate material removed from the pipe and the cleaning liquid (water) is collected in the tub and discharged to a particle size reduction and filtering system which reduces the particle size of the material to form a slurry of very fine particles which may be disposed of through an injection well. Some of the slurry may be returned to the system for use as cleaning liquid. Pipe is loaded into and removed from the tub by a pipe handling mechanism including retractable supports with ramp surfaces which position the pipe for movement into and out of the tub. The system provides for cleaning tube and pipe sections while minimizing exposure of the material removed from the tube and pipe sections to the environment except through suitable disposal means such as an injection well.
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EP 32,813 Jul. 1981.
Lowe David J.
Major Mark A.
McArthur Alan
Atlantic Richfield Company
Martin Michael E.
Stinson Frankie L.
The Standard Oil Company
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