flowlines

As operators rely on longer subsea tiebacks, an upward trend in the number of plugs caused by paraffins and hydrates has been seen. New prevention and remediation methods are discussed to help solve these challenges.

Anadarko Petroleum announced on its website on 16 May that it is permanently disconnecting 1-in.-diameter return lines from all vertical wells in Colorado—the same type of pipe that carried odorless gas that fueled a house explosion in Firestone, Colorado.

A methodology is proposed for design of subsea flowlines and risers coupled with a subsea high-integrity pressure protection system (HIPPS) for fields with high shut-in tubing pressure (SITP).

Systematic experimental and modeling approaches to designing a safe operating strategy for a 5-km deepwater-subsea-flowline case study are presented to address unplanned shutdown and restart events for waxy-crude production.