ASSET INTEGRITY MANAGEMENT FOR OFFSHORE AND ONSHORE STRUCTURES This page intentionally left blank ASSET INTEGRITY MANAGEMENT FOR OFFSHORE AND ONSHORE STRUCTURES Mohamed A. El-Reedy, PhD StructuralConsultant Engineer GulfProfessionalPublishingisanimprintofElsevier 50HampshireStreet,5thFloor,Cambridge,MA02139,UnitedStates TheBoulevard,LangfordLane,Kidlington,Oxford,OX51GB,UnitedKingdom Copyright©2022ElsevierLtd.Allrightsreserved. Nopartofthispublicationmaybereproducedortransmittedinanyformorbyanymeans,electronic ormechanical,includingphotocopying,recording,oranyinformationstorageandretrievalsystem, withoutpermissioninwritingfromthepublisher.Detailsonhowtoseekpermission,further informationaboutthePublisher’spermissionspoliciesandourarrangementswithorganizationssuch astheCopyrightClearanceCenterandtheCopyrightLicensingAgency,canbefoundatourwebsite: www.elsevier.com/permissions. 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LibraryofCongressCataloging-in-PublicationData AcatalogrecordforthisbookisavailablefromtheLibraryofCongress BritishLibraryCataloguing-in-PublicationData AcataloguerecordforthisbookisavailablefromtheBritishLibrary ISBN:978-0-12-824540-8 ForinformationonallGulfProfessionalpublications visitourwebsiteathttps://www.elsevier.com/books-and-journals Publisher:CharlotteCockle SeniorAcquisitionsEditor:KatieHammon EditorialProjectManager:AleksandraPackowska ProductionProjectManager:PremKumarKaliamoorthi CoverDesigner:ChristianBilbow TypesetbySTRAIVE,India Thisbookisdedicatedtothespiritsofmymotherandmyfather,andtomy wife and my children Maey, Hisham, and Mayar. This page intentionally left blank Contents Abouttheauthor ix Preface xi 1. Corrosion effectson offshore andonshore structures 1 1.1 Introduction 1 1.2 Corrosioneffectsonoffshorestructure 3 1.3 Pipelines 8 1.4 Onshorestructure 11 References 29 2. Integrity management versus reliability 31 2.1 Introduction 31 2.2 Principleofreliability 32 2.3 Concretecross-sectionvariation 61 2.4 Pipelinereliabilityanalysis 80 2.5 Offshorestructurereliability 86 2.6 FPSOintegrity 89 References 90 3. Inspection techniques 95 3.1 Introduction 95 3.2 Offshorestructures 96 3.3 Pipingandpipelineinspection 107 3.4 Inspectionmethods 111 3.5 Tankinspections 112 3.6 Onshorestructures 115 References 142 4. Assessment of structures and pipelines 143 4.1 Introduction 143 4.2 Assessmentforonshoreconcretestructures 143 4.3 Concretestructureprobabilityoffailure 145 4.4 Designandmaintenancerecommendations 168 4.5 Pipelineassessment 169 4.6 Storagetankassessment 170 4.7 Assessmentforonshoresteelstructure 176 vii viii Contents 4.8 Assessmentofoffshorestructure 178 4.9 AssessmentforFPSO 193 References 196 Furtherreading 197 5. Repair methods for offshoreand onshorestructures 199 5.1 Offshorestructuresrepair 199 5.2 FPSOrepair 232 5.3 Pipelinerepairs 233 5.4 Onshorestructures 237 References 264 Furtherreading 264 6. Proactiveapproach to integrity 265 6.1 Introduction 265 6.2 Onshorestructureprotection 265 6.3 Offshorestructureprotection 284 6.4 Steelstructurecoatingsandcorrosionprotection 293 6.5 Corrosionstressesduetotheatmosphere,water,andsoil 296 6.6 GeneralCPdesignconsiderations 301 6.7 Designexample 328 6.8 Generaldesignconsiderations 328 6.9 Anodemanufacture 336 6.10 Installationofanodes 336 6.11 Anodedimensiontolerance 338 References 343 Furtherreading 344 7. Integrity management system 347 7.1 Introduction 347 7.2 Offshorestructureintegritymanagement(SIM)system 349 7.3 Riskassessmentoutcomes 385 References 396 Furtherreading 397 Index 399 About the author MohamedA.El-Reedy’sbackgroundisin structural engineering. His main area of researchisthereliabilityofconcreteandsteel structures.Hehasprovidedconsultingtodif- ferentengineeringcompaniesandoilandgas industriesinEgyptandtointernationalcom- paniessuchastheInternationalEgyptianOil Company (IEOC) and British Petroleum (BP). Moreover, he provides different con- crete and steel structure design packages for residential buildings, warehouses, and tele- communication towers and electrical pro- jects with WorleyParsons Egypt. He has participatedinliquefiednaturalgas(LNG)andnaturalgasliquid(NGL)pro- jects with international engineering firms. Currently, Dr. El-Reedy is responsibleforreliability,inspection,andmaintenancestrategyforonshore concretestructuresandoffshoresteelstructureplatforms.Hehasperformed these tasks for hundreds of structures in the Gulf of Suez in the Red Sea. Dr. El-Reedy has consulted with and trained executives at many orga- nizations,includingtheArabianAmericanOilCompany(ARAMCO),BP, Apachi,AbuDhabiMarineOperatingCompany(ADMA),theAbuDhabi NationalOilCompany,KingSaudi’sInteriorministry,QatarTelecom,the Egyptian General Petroleum Corporation, Saudi Arabia Basic Industries Corporation(SAPIC),theKuwaitPetroleumCorporation,andQatarPet- rochemicalCompany(QAPCO).Hehastaughttechnicalcoursesonrepair and maintenance for reinforced concrete structures and advanced materials in the concrete industry worldwide, especially in the Middle East. Dr. El-Reedy has written numerous publications and has presented many papers at local and international conferences sponsored by the American Society of Civil Engineers, the American Society of Mechanical Engineers, the American Concrete Institute, the American Society for Testing and Materials, and the American Petroleum Institute. He has published many research papers in international technical journals and has authoredover10booksontotalqualitymanagement,qualitymanagement andqualityassurance,economicmanagementofengineeringprojects,repair ix