New tool for internal pressure during fabrication and installation of mechanically lined pipelines using reel-lay method. (June 2016)

• Record Type: Journal Article
• Authors: Tianfeng, Zhao; Zhigang, Tian
• Is Part Of: Applied ocean research. Volume 58(2016:Oct.)
• Page Start: 232
• Page End: 240
• Publication Date: 2016-06
• Subjects: Mechanically lined pipeline -- Wrinkling -- Detachment -- Spooling-on -- Reel-lay; Ocean engineering -- Periodicals; 620.416205
• DOI: 10.1016/j.apor.2016.04.009
• Languages: English
• ISSNs: 0141-1187

Abstract

Highlights: A new approach to spool mechanically lined pipeline on a reel for pipe installation. Supporting sealing devices and an operation process are proposed. Application effects are simulated and predicted using finite-element models. The prototype test for 5-in. MLP packers is performed to verify the feasibilities of the device and the approach proposed. Abstract: As an ideal use of corrosion-resistant alloys and low-alloy steels, Mechanically Lined Pipelines (MLPs) have been employed gradually for offshore exploitation. If the risk of thin-walled liner wrinkling is to be effectively averted, reel-lay is the most economical installation method for this type of pipeline, especially for deepwater oil and gas development. A suite of tools and corresponding techniques is proposed in this paper to realize the spooling-on of an MLP stalk with inner pressure to avoid detachment and wrinkling of the MLP liner. Additionally, The related numerical verification and a prototype test for a 5-in. MLP spooling-on tool are completed to prove the validity of this new technique and further illustrate the application effect of providing internal pressure during the spooling-on of MLP stalk to a reel.