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In this day and age, humankind has come to the realization that the Earth's resources are limited. In the 19,h and 20lh Centuries, these resources have been exploited to such an extent that their availability to future generations is now in question. In an attempt to reverse this march towards self-destruction, we have turned out attention to the oceans, realizing that these bodies of water are both sources for potable water, food and minerals and are relied upon for World commerce. In order to help engineers more knowledgeably and constructively exploit the oceans, the Elsevier Ocean Engineering Book Series has been created.
ELSEVIER OCEAN ENGINEERING BOOK SERIES VOLUME 3 PIPELINES AND RISERS EXISTING > PIPEUNE EXPORT PIPELINE TO SHORE / Yong Bai SERIES EDITORS R. BHATTACHARYYA & M.E. McCORMICK ELSEVIER OCEAN ENGINEERING BOOK SERIES VOLUME 3 PIPELINES AND RISERS Elsevier Seience Internet Homepage http://www.elsevier.n1 (Europe) http://www.elsevier.com (America) ’ http://www.elsevier.colip (Asia) Consult the Elsevier homepage for full catalogue information on all books, journals and electronic products and services. Elsevier Titles of Related Interest BJORHOVDE, COLSON & ZANDONMI Connections in Steel Structures 111. ISBN: 008-042821-5 CHAN & TENG ICASS ‘99, Advances in Steel Structures (2 Volume Set). ISBN: 008-043015-5 DUBINA SDSS ‘99 - Stability and Ductility of Steel Structures. ISBN: 008-043016-3 FRANGOPOL, COROTIS & RACKWITZ Reliability and Optimization of Structural Systems. ISBN: 008-042826-6 FUKUMOTO Structural Stability Design. ISBN: 008-042263-2 GODOY Thin-Walled Structures with Structural Imperfections: Analysis and Behavior. ISBN: 008-042266-7 GUEDES-SOARES ISBN: 008-042835-5 Advances in Safety and Reliability (3 Volume Set). MOAN & BERGE 13th Int Ship & Offshore Structures Congress (Issc 1997). ISBN: 008-042829-0 OWENS Steel in Construction (CD-ROM Proceedings with Printed Abstracts Volume, 268 papers). ISBN: 008-042997-1 SRIVASTAVA Structural Engineering World Wide 1998 (CD-ROM Proceedings with Printed Abstracts Volume 702 papers). USAMI & ITOH Stability and Ductility of Steel Structures. VASSALOS Contemporary Ideas on Ship Stability. ISBN: 008-042845-2 ISBN: 008-043320-0 ISBN: 008-043652-8 VUGTS BOSS ‘97 Behaviour of Offshore Structures (3 Volume Set). ISBN: 008-042834-7 WATSON Practical Ship Design. YOUNG Wind Generated Ocean Waves. ISBN: 008-042999-8 ISBN: 008-043317-0 OHTSUBO & SUM1 Proceedings of the 14th International Ship and Offshore Structures Congress. 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Should you have a publishing proposal you wish to discuss, please contact, without obligation, the publisher responsible for Elsevier’s civil and structural engineering publishing programme: Finite Elements in Analysis and Design International Journal of Solids and Structures Journal of Constructional Steel Research NDT & E International Ocean Engineering Ian Salusbury Senior Publishing Editor Elsevier Science Ltd The Boulevard, Langford Lane Phone: +44 1865 843425 Kidlington, Oxford Fax: +44 1865 843920 OX5 IGB, UK E.mai1: i.salusbury@elsevieLco.uk Generdl enquiries, including placing orders, should be directed to Elsevier’s Regional Sales Offices - please access the Elsevier homepage for full contact details (homepage details at the top of this page). ELSEVIER OCEAN ENGINEERING BOOK SERIES VOLUME 3 PIPELINES AND RISERS YONG BAI Stavanger University College, N-409 1 Stavanger, Norway and American Bureau of Shipping, Houston, TX 77060, USA OCEAN ENGINEERING SERIES EDITORS R. Bhattacharyya US Naval Academy, Annapolis, MD, USA M.E. McCormick The Johns Hopkins University, Baltimore, MD, USA ELSEVIER Amsterdam - London - New York - Oxford - Paris - Shannon - Tokyo EJSEVIER SCIENCE Ltd The Boulevard, Langford Lane Kidlington, Oxford OX5 IGB, UK 0 2001 Yong Bai All rights reserved. This work is ptuteckd under copyright of Yong Bai with assigned rights to Elsevier Science. The following terms and conditions apply to its use: Photocopying Single photocopies of single chapters may be made for penonal use as allowed by national copyight laws. Permission of the Publisher and payment of a fee is rcquired for all other photocopying, including multiple or systematic wpying. wpying for advertising or promotional purposes, resale, and all forms of document delivery. Speeial rates are available for educational institutions that wish to make photocopies for non-profit educational classroom use. 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Because of rapid advances in the medical sciences, in panicular, independent verification of diagnoses and drug dosass should be made. First edition 2001 Second impression 2003 Library of Congress Cataloging in Publication Data A catalog record from the Library of Congress has been applied for. British Library Cataloguing in Publication Data A catalogue record from the British Library has been applied for, ISBN 0 08 043712 5 (hardcover) 8 The paper used in this publication meets the requirements of ANSUNIS0 239.48-1992 (Permanence of Paper). Printed in The Netherlands. V SERIES PREFACE In this day and age, humankind has come to the realization that the Earth's resources are limited. In the 19'h and 20th Centuries, these resources have been exploited to such an extent that their availability to future generations is now in question. In an attempt to reverse this march towards self-destruction, we have turned out attention to the oceans, realizing that these bodies of water are both sources for potable water, food and minerals and are relied upon for World commerce. In order to help engineers more knowledgeably and constructively exploit the oceans, the Elsevier Ocean Engineering Book Series has been created. The Elsevier Ocean Engineering Book Series gives experts in various areas of ocean technology the opportunity to relate to others their knowledge and expertise. In a continual process, we are assembling world- class technologists who have both the desire and the ability to write books. These individuals select the subjects for their books based on their educational backgrounds and professional experiences. The series differs from other ocean engineering book series in that the books are directed more towards technology than science, with a few exceptions. Those exceptions we judge to have immediate applications to many of the ocean technology fields. Our goal is to cover the broad areas of naval architecture, coastal engineering, ocean engineering acoustics, marine systems engineering, applied oceanography, ocean energy conversion, design of offshore structures, reliability of ocean structures and systems and many others. The books are written so that readers entering the topic fields can acquire a working level of expertise from their readings. We hope that the books in the series are well-received by the ocean engineering community. Ramesw ar Bhattacharyy a Michael E. McCorrnick Series Editors vii FOREWORD This new book provides the reader with a scope and depth of detail related to the design of offshore pipelines and risers, probably not seen before in a textbook format. With the benefit of nearly 20 years of experience, Professor Yong Bai has been able to assimilate the essence of the applied mechanics aspects of offshore pipeline system design in a form of value to students and designers alike. The text is well supported by a considerable body of reference material to which Professor Yong Bai himself has made a substantial contribution over his career. I have been in the field of pipeline engineering for the best part of 25 years and in that time have seen the processes involved becoming better and better understood. This book further adds to that understanding. Marine pipelines for the transportation of oil and gas have become a safe and reliable part of the expanding infrastructure put in place for the development of the valuable resources below the world's seas and oceans. The design of these pipelines is a relatively young technology and involves a relatively small body of specialist engineers and researchers worldwide. In the early 1980's when Professor Yong Bai began his career in pipelines, the technology was very different than it is today, being adapted from other branches of hydrodynamics, mechanical and marine engineering using code definitions and safety factors proven in other applications but not specific to the complex hydrodynamic-structure-seabed interactions seen in the behaviour of what is outwardly a simple tubular lying on or slightly below the seabed. Those designs worked then and many of the systems installed, including major oil and gas trunklines installed in the hostile waters of the North Sea, remain in safe service today. What has happened in the intervening period is that pipeline design processes have matured and have been adapted and evolved to be fit for purpose for today's more cost effective pipelines; and will continue to evolve for future application in the inevitable move into deeper waters and more hostile environments. An aspect of the marine pipeline industry, rarely understood by those engineers working in land based design and construction, is the more critical need for a 'right first time' approach in light of the expense and complexity of the materials and the installation facilities involved, and the inability to simply 'go back and fix it' after the fact when your pipeline is sitting in water depths well beyond diver depth and only accessible by robotic systems. Money spent on good engineering up front is money well spent indeed and again a specific fit for purpose modem approach is central to the best in class engineering practice requisite for this right first time philosophy. Professor Yong Bai has made important contributions to this coming of age of our industry and the benefit of his work and knowledge is available to those who read and use this book. It is well recognised that the natural gas resources in the world's ocean are gaining increasing importance as an energy source to help fuel world economic growth in the established and emerging economies alike. Pipelines carry a special role in the development and production of gas reserves since, at this point in time, they provide one of the most reliable means for transportation given that fewer options are available than for the movement of hydrocarbon liquids. Add to this the growing need to provide major transportation infrastructure between gas producing regions and countries wishing to import gas, and future oil transmission systems, then the requirement for new offshore pipelines appears to be set for several years to come. Even today, plans for pipeline transportation infrastructure are in development for regions with more hostile environments and deeper waters than would have been thought [...]... mechanics and desigdengineering Starting from August 1998, the book has been used in a teaching course for MSc students at Stavanger University College and IBC training course for engineers in pipeline and riser industries The preparation of the book is motivated by recent developments in research and engineering and new design codes There is a need for such a book to educate more pipeline engineers and. .. Stages The design of pipelines is usually performed in three stages, namely; Conceptual engineering, Preliminary engineering or pre -engineering, Detail engineering N PIPUYE CROSSING FLOWLINE PORT PIPELINE (SEVERAL CAN BE BUNDLED) TO SHORE Introduction 3 1 Conceptual Engineering The primary objectives are normally: - To establish technical feasibility and constraints on the system design and construction;... friendship and technical advice from these great scientists and engineers have been very helpful to generate basis for this book As the Chief Engineer, Per Damsleth has given the author a lot of advice and supports during last years Managing Director Jan-Erik Olssm and Engineering Manager Gawain Langford of J P Kenny AIS are acknowledged for a friendly and creative atmosphere Dr Ruxin Song and Terjer... are appreciated for their advice on risers and bundles Jens Chr Jensen and Mark S@rheim deeply appreciated for are editing assistance during preparation of the book Senior Vice President Dr Donald Liu at ABS provided guidance and encouragement for the completion of this book Special thanks to my wife, Hua Peng, daughter Lihua and son Carl for their love, understanding and support that have been very important... Stresses and Service Life of Flexible Pipes 20.5 Drilling and Workover Risers 391 20.6 Riser Projects in Norway 391 20.7 References 392 Chapter 21 Design Codes and Criteria for Risers 393 2 1.1 Design Guidelines for Marine Riser Design 395 21.2 Design Criteria for Deepwater Metallic Risers 21.2.1 Design Philosophy and Considerations... Companies ix PREFACE This book is written for engineers who work on pipelines, risers and piping It summarizes the author’s 18 years research and engineering experience at universities, classification societies and design offices It is intended to develop this book as a textbook for graduate students, design guidelines for engineers and references for researchers It is hoped that this book may also... the forthcoming design and construction; - To allow basic cost and scheduling exercises to be performed; - To identify interfaces with other systems planned or currently in existence The value of the early engineering work is that it reveals potential difficulties and areas where more effort may be required in the data collection and design areas 2 Preliminary engineering or basic engineering The primary... engineering or basic engineering The primary objectives are normally: - Perform pipeline design so that system concept is fixed This will include: To verify the sizing of the pipeline; Determining the pipeline grade and wall thickness; Verifying the pipeline against design and code requirements for installation, commissioning and operation; - Prepare authority applications; - Perform a material take off... determine, based on given operating parameters, the optimum pipeline size parameters These parameters include: - Pipeline internal diameter; - Pipeline wall thickness; - Grade of pipeline material; - Type of coating-corrosion and weight (if any); - Coating wall thickness The design process required to optimize the pipeline size parameters is an iterative one and is summarize in Figure 1.2 The design analysis... should be developed such that: Pipeline wall thickness, grade, coating and length are specified so that pipeline can be fabricated; Route is determined such that alignment sheets can be compiled; Pipeline stress analysis is performed to verify that the pipeline is within allowable stresses at all stages of installation, testing and operation The results will also include pipeline allowable spans, tie-in . the ocean technology fields. Our goal is to cover the broad areas of naval architecture, coastal engineering, ocean engineering acoustics, marine systems engineering, applied oceanography, ocean. Applied Ocean Research Engineering Structures Advances in Engineering Software CAD Coastal Engineering Composite Structures Marine Structures Computers and Structures Construction and Building. of this page). ELSEVIER OCEAN ENGINEERING BOOK SERIES VOLUME 3 PIPELINES AND RISERS YONG BAI Stavanger University College, N-409 1 Stavanger, Norway and American Bureau of