ABSTRACT

Cased pipeline construction creates operational challenges for cathodically protecting and assessing the condition of the carrier pipe inside a casing. Filling the annular space between the casing and carrier pipe is a method commonly used to control corrosion on the exterior surface of the carrier pipe in a casing. Case studies of the assessment of filled casings using Inline Inspection (ILI) and Direct Assessment (DA) will be presented to evaluate the effectiveness of filling casings to control corrosion.

Keywords:
flowline corrosion, Upstream Oil & Gas, Publication Division, permission, Pipeline Corrosion, annular space, texas 77084, external metal loss anomaly, riser corrosion, anomaly
Subjects:
Pipelines, Flowlines and Risers, Materials and corrosion
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2013. NACE International
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