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Patent
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E21B 21/06 (2006.01) B01D 19/00 (2006.01) B01D 21/00 (2006.01)
Patent
CA 1127626
Case No. 6280 DRILLING FLUID CIRCULATION SYSTEM Abstract of the Disclosure A drilling fluid circulation system for con- taining drilling cuttings, gas and drilling fluid in a closed loop. The system includes a separator having two sealed compartments, one for settling out drilling cut- tings and one for holding clean drilling fluid. A fine solids separator is provided between the two compartments, and a gas exhaust line for conducting gas released from the returning drilling fluid is provided to conduct the produced gas to a safe location away from the working area. A solids discharge device is provided for removing settled drilling cuttings.
359381
Jones Emrys H.
Lauer Stephen D.
Mason Charles E.
Thakur Pramod C.
Conoco Inc.
Ridout & Maybee Llp
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