Abstract:This paper is based on experience obtained during design of Payara Project, offshore Guyana, where 10" production and 16" water injection pipelines were found to be potentially susceptible to walking. Offshore pipelines that are subject to HT/HP conditions, riser tensions and seabed slopes can be susceptible to walking, which may jeopardize the integrity of connected subsea structures. Should the cumulated walking during the operating life of the pipeline exceed the maximum allowed displacement, an anchoring s… Show more
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