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.

Issue Section:
Technical Papers
Keywords:
software tools, offshore installations, thermal insulation, pipelines, gas industry, design, flow, mechanical engineering computing
Topics:
Computer software, Deformation, Design, Flow (Dynamics), Fluids, Stress, Temperature, Thermal insulation, Water, Creep, Insulation, Pipeline risers, Risers (Casting)
1.
DeFRIS
, 2000 Annexe I, “
Description of Work
,” July 2000.
2.
Williams
,
D.
, “
An Analytical Tool for the Design and Analysis of Thermal insulation Systems for Risers and Subsea Flowlines
,” M. Eng. Sc. thesis, National University of Ireland, Galway, 2002.
3.
Incropera
,
F. P.
, and
Dewitt
,
D. P.
,
Fundamentals of Heat and Mass Transfer
, 4th ed. 1996,
Wiley
.
4.
Rohsenow
,
W. M.
,
Hartnett
,
J. P.
, and
Young
,
C. I.
, 1998,
Handbook of Heat Transfer
, 3rd ed.,
McGraw-Hill
.
5.
Cengel
,
Y. A.
 and
Boles
,
M. A.
, 1994,
Thermodynamics - An Engineering Approach
, 2nd ed.,
1994
,
McGraw-Hill
.
6.
Munson
,
B. R.
,
Young
,
D. F.
, and
Okiishi
,
T. H.
, 1994,
Fundamentals of Fluid Mechanics
, 2nd ed.,
Wiley
, New York.
7.
Timoshenko
,
S.
, 1956, “
Strength of Materials. Part II
,” 3rd ed., Van Nostrand, Princeton.
8.
Hansen
,
A. B.
, and
Friberg
,
R.
, 2000, “
Thermal Insulation of Non-Jacketed Deep Water Flow Lines and Risers Based on Mobile Manufacturing Units
,” Rio Oil and Gas Expo and Conference, IBP41900, Brazil, 16–19 October.
9.
Findley
,
W. N.
, “
Combined Stress Creep of Non-Linear Viscoelastic Material
,”
Advances in Creep Design
, The A.E. Johnson Memorial Volume, edited by
A. I.
Smith
 and
A. M.
Nicolson
,
Applied Science Publishers
, London, 1971.
10.
ANSYS Inc.
,
ANSYS Theory Manual
, Version 6.1, Southpointe, 275 Technology Drive, Canonsburg, PA 15317.
Copyright © 2005
 by American Society of Mechanical Engineers
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