In today’s challenging environment, the priority for many oil and gas operation companies is to design, build and safely operate facilities at optimum cost efficiency. This means that new facility designs must consider critical facility integrity and that existing facilities are operated well beyond their intended design life. Main gas transmission systems are now some 50 years old and operate for longer periods than anticipated during design and construction for reasons such as; the transition to renewables with another 50 years of service foreseen, and; gas transmission systems that operate satisfactorily, have very low failure rates and for which the planned safe life time extension is expected to be the lowest cost option.

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