December 2011, Vol. 238 No. 12
Features
Do You Know What You Have In the Ground?
At its recent Integrity Educational Seminar, Mears Group Inc., personnel focused on the topic of establishing the maximum allowable operating pressure (MAOP) of a gas pipeline and the general concept of operating margin of safety. It included an historic look at how MAOP has been determined and what future regulatory requirements and industry initiatives are certain to be. Speakers included Alan Eastman, Chris Warner and Kevin Garrity of Mears, Doug Spencer from Microline Technology Corporation and Bob Travers of Spectra Energy. Eastman explained that the recent PHMSA advisory notice on MAOP instructed companies to use recorded evidence and integrity management risk identificat

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