Page 194 - Pipeline Pigging Technology

Gellypig technology for pipeline conversion

Fig.5. Plot of debris loading vs gel train length for Phase 2.

the range for optimum debris removal with gellypigs, and obviously provided
the contact time necessary for the degreaser to perform adequately.
The pipeline began natural gas service on 1 st January, 1990, (the scheduled
start-up date). There have been no problems to report to date. There have
been relatively few filter changes, with these typically occurring when the

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