how to remove obstructed pigs
Post on 07-Dec-2015
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How To Remove Obstructed Pigs
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HOW TO REMOVE OBSTRUCTED PIGS1. Partial obstruction (lost seal)
A. Increase volume to rear of pig.B. Remove pressure and volume to allow the pig to recover.C. Run a line size swab to seal off pig.D. Reverse flow direction.
2. Obstructed Flow:
A. Increase pressure to the rear of the pig.B. Alternately increase and decrease pressure.C. Remove pressure and volume to allow the pig to recover.D. Reverse flow direction.
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