AIR-LIFT PUMP CLEANS AROUND SUBSEA WELLHEAD

Ken Vargas Suncor Oil Sands Group Inc. Fort McMurray, Alta. A relatively simple and inexpensive air-lift system moved cement spoils from around a subsea wellhead to the moon pool of a rig, allowing the crew to monitor the cement returns without the drilling riser in place. This equipment setup also removed cuttings from around the blowout preventer (BOP) stack to keep the wellhead area free of debris. Air-lift pumps have typically been used to transfer liquids and slurries from mine shafts and

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