June 2022, Vol. 249, No. 6


Challenging Tethered ILI of a Crude Pipeline in the Caribbean

By Michael Nadler, Project Manager, Thor-Ståle Kristiansen, Managing Director, and Ian Patten, Senior Integrity Engineer, ROSEN   In most cases, inline inspections (ILI) follow a basic principle: what goes into the pipeline at one end must come out at the other. Sometimes, it is not that simple.   In this specific case, the team from ROSEN Norway was contracted to inspect a crude oil line connecting an onshore terminal to a subsea pipeline end manifold. The main challenge was that the asset could only be accessed using a single-entry approach. Our experts, in close collaboration with the customer in Trinidad and Tobago, developed a solution.  The pipeline to be inspected for corrosion is

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