Development of an Analytical Tool for the Design of Deep Water Riser/Flow Line Thermal Insulation Systems

[+] Author and Article Information
Dara Williams

 MCS, Galway Technology Park, Parkmore, Galway, IrelandDaraWilliams@mcs.com

Annette Harte

Department of Civil Engineering,  National University of Ireland, Galway, Irelandannette.harte@NUIGalway.ie

Frank Grealish

 MCS, Galway Technology Park, Parkmore, Galway, IrelandFrankGrealish@mcs.com

J. Offshore Mech. Arct. Eng 127(2), 96-103 (Dec 10, 2004) (8 pages) doi:10.1115/1.1894403 History: Received September 08, 2003; Revised December 10, 2004

The offshore oil and gas industry is predicting the discovery of more and more deep water reservoirs. Increased water depths create a requirement for reliable pipelines to economically recover these deep water fields and also to minimize flow assurance problems. Increased flow assurance problems in deeper waters increase the need for thermally insulated pipelines. In this paper we present an overview of the key issues in the analysis and design of thermal insulation systems, identify and discuss how these are addressed by the design tools developed within the DeFRIS project and present results used to validate the algorithms incorporated into the design tool.

Copyright © 2005 by American Society of Mechanical Engineers
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Figure 1

Thermotite seven-layer insulation system

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Figure 2

Software tool GUI

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Figure 3

Comparison of results of cool-down analysis

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Figure 4

Comparison of radial stress

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Figure 5

Comparison of system radial deformation

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Figure 6

Comparison of system temperature distribution

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Figure 7

Radial creep of system—software tool results



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