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Pipeline Integrity Management Under Geohazard Conditions (PIMG)

By
Mamdouh M. Salama
Mamdouh M. Salama
ConocoPhillips
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Yong-Yi Wang
Yong-Yi Wang
CRES
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Don West
Don West
Golder
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Alexander McKenzie-Johnson
Alexander McKenzie-Johnson
Geosyntec
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Azam B A-Rahman
Azam B A-Rahman
Petronas
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Guiyi Wu
Guiyi Wu
TWI
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Jens Petter Tronskar
Jens Petter Tronskar
DNVGL
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Jim Hart
Jim Hart
SSD Inc
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Bernt J. Leira
Bernt J. Leira
NTNU
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ISBN:
9780791861998
No. of Pages:
412
Publisher:
ASME Press
Publication date:
2020

This paper covers tensile strain design, which has at least three key elements, including (1) linepipe specifications / qualification, (2) girth welding procedure qualification and field girth welding practice, and (3) tensile strain models. A brief summary of linepipe specifications, girth welding procedure qualification, and field girth welding is provided, with features specifically important to SBD highlighted. The focus of the paper is on tensile strain models and their applications. The fundamental principles and structure of the PRCI-CRES tensile strain models are presented. Processes and procedures for obtaining non-conventional input parameters such as apparent CTOD toughness are introduced for users to apply the models. Various ways of applying the models and the limits of the models are given. Finally, examples are shown for the strain-based design of new pipelines and strain-based assessment of existing pipelines.

INTRODUCTION
KEY ELEMENTS IN TENSILE STRAIN DESIGN
PRCI-CRES TENSILE STRAIN MODELS
CONDITIONS NOT COVERED BY MOST TENSILE STRAIN MODELS
EXAMPLES OF APPLICATIONS
CONCLUDING REMARKS
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