System for retrieving waste drilling mud

Details System for retrieving waste drilling mud System for retrieving waste drilling mud

1995-12-07

1998-03-10

Rivell, John

Fluid handling

Systems

Closed circulating system

175 66, 175217, E21B 2110

Patent

active

057250219

ABSTRACT:
For use with a mud pit connected to a drilling rig, a first pipe and connected pump pulls mud from the pit for use or disposal. The pit is provided with a bottom located drain line with a valve connected to an added pipe, a serially connected pump and outlet pipe going to a backload line for recovery in a tanker.

REFERENCES:
patent: 2241273 (1941-05-01), Robinson et al.
patent: 2870990 (1959-01-01), Bergey
patent: 2923151 (1960-02-01), Engle et al.
patent: 2941783 (1960-06-01), Stinson
patent: 4506986 (1985-03-01), Freeman
patent: 4650339 (1987-03-01), Chetcuti et al.
patent: 5093008 (1992-03-01), Clifford, III
patent: 5129469 (1992-07-01), Jackson
patent: 5203367 (1993-04-01), Akai et al.

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