T
he PHMSA R&D Forum held in August 2014 declared non-destructive
ILI methods for determining material properties as one of the main
‘R&D gaps’ in the pipeline business. Recent high profile pipeline
incidents, particularly the San Bruno incident in 2010, led to
regulatory initiatives that require pipeline records to be verifiable, traceable
and complete.
The important property record needing to be identified and determined
is called maximum allowable operating pressure (MAOP). When establishing
a pipelines’ MAOP, many pipeline operators face uncertainties regarding the
yield strength of the respective pipeline material. Especially for pipelines
constructed prior to 1970, often referred to as pre-regulatory pipelines,
records are often incomplete and/or uncertain.
PRESSURE
Calculating
Borja Martinez, Daniel
Molenda and Markus
Brors, ROSEN Group,
Germany,
presents a
novel inline inspection
technology for MAOP
validation.
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