Underwater Inspection and Repair for Offshore Structures

UNDERWATER INSPECTION AND REPAIR FOR OFFSHORE STRUCTURES

Benefit from a much-needed, up-to-date handbook on underwater inspection and repair processes and technologies

Underwater Inspection and Repair for Offshore Structures fills a gap in the literature to provide an overview of the inspection and repair processes for both steel and concrete offshore structures. Authors and noted experts on the topic John V. Sharp and Gerhard Esdal guide readers through the reasons why inspection and repair are performed and how both are linked to the management of structural integrity, statutory requirements, and various types of damage.

The book addresses critical topics, including the execution and planning of inspection and repair, the tools and methods used, and their deployment underwater. The authors put particular focus on steel and concrete offshore oil and gas installations, but the content is also applicable to the substructures of offshore wind turbines. Underwater Inspection and Repair for Offshore Structures is complementary to the authors' book Ageing and Life Extension of Offshore Structures, also from Wiley. This important book:

• Covers current inspection and monitoring techniques to evaluate existing structures
• Includes coverage of robotic (ROV) inspection and repair methods
• Provides an overview of repair and maintenance techniques applicable to the splash-zone and underwater operations

Written for engineers, designers, and safety auditors working with offshore structures. Underwater Inspection and Repair for Offshore Structures is a comprehensive resource for understanding how to effectively inspect and repair these vulnerable structures.

Autorentext

John V. Sharp is a Visiting Professor at Cranfield University, UK. His main research interests include the ageing and life extension of structures and their inspection and repair. Formerly he was responsible for the UK Health & Safety Executive's offshore research programme.

Gerhard Ersdal is a Professor in the Department of Mechanical and Structural Engineering and Material science at the University of Stavanger, Norway. His main research interests include structural integrity management, life extension of structures, and risk management.

Klappentext

Benefit from a much-needed, up-to-date handbook on underwater inspection and repair processes and technologies

Underwater Inspection and Repair for Offshore Structures fills a gap in the literature to provide an overview of the inspection and repair processes for both steel and concrete offshore structures. Authors and noted experts on the topic John V. Sharp and Gerhard Esdal guide readers through the reasons why inspection and repair are performed and how both are linked to the management of structural integrity, statutory requirements, and various types of damage.

The book addresses critical topics, including the execution and planning of inspection and repair, the tools and methods used, and their deployment underwater. The authors put particular focus on steel and concrete offshore oil and gas installations, but the content is also applicable to the substructures of offshore wind turbines. Underwater Inspection and Repair for Offshore Structures is complementary to the authors' book Ageing and Life Extension of Offshore Structures, also from Wiley. This important book:

• Covers current inspection and monitoring techniques to evaluate existing structures
• Includes coverage of robotic (ROV) inspection and repair methods
• Provides an overview of repair and maintenance techniques applicable to the splashzone and underwater operations Written for engineers, designers, and safety auditors working with offshore structures. Underwater Inspection and Repair for Offshore Structures is a comprehensive resource for understanding how to effectively inspect and repair these vulnerable structures.

Zusammenfassung
UNDERWATER INSPECTION AND REPAIR FOR OFFSHORE STRUCTURES Benefit from a much-needed, up-to-date handbook on underwater inspection and repair processes and technologies*Underwater Inspection and Repair for Offshore Structures fills a gap in the literature to provide an overview of the inspection and repair processes for both steel and concrete offshore structures. Authors and noted experts on the topic John V. Sharp and Gerhard Esdal guide readers through the reasons why inspection and repair are performed and how both are linked to the management of structural integrity, statutory requirements, and various types of damage.The book addresses critical topics, including the execution and planning of inspection and repair, the tools and methods used, and their deployment underwater. The authors put particular focus on steel and concrete offshore oil and gas installations, but the content is also applicable to the substructures of offshore wind turbines. *Underwater Inspection and Repair for Offshore Structures is complementary to the authors' book Ageing and Life Extension of Offshore Structures, also from Wiley. This important book:

• Covers current inspection and monitoring techniques to evaluate existing structures
• Includes coverage of robotic (ROV) inspection and repair methods
• Provides an overview of repair and maintenance techniques applicable to the splashzone and underwater operationsWritten for engineers, designers, and safety auditors working with offshore structures. Underwater Inspection and Repair for Offshore Structures is a comprehensive resource for understanding how to effectively inspect and repair these vulnerable structures.

Inhalt
1 INTRODUCTION TO UNDERWATER INSPECTION AND REPAIR 1

1.1 BACKGROUND 1

1.2 WHY DO WE INSPECT AND REPAIR STRUCTURES 2

1.3 TYPES OF OFFSHORE STRUCTURES 5

1.3.1 Fixed steel structures 7

1.3.2 Floating structures 7

1.3.3 Concrete platforms 8

1.4 OVERVIEW OF THIS BOOK 9

1.5 BIBLIOGRAPHIC NOTES 10

1.6 REFERENCES 10

2 STATUTORY REQUIREMENTS FOR INSPECTION AND REPAIR OF OFFSHORE STRUCTURES 11

2.1 INTRODUCTION 11

2.2 EXAMPLES OF COUNTRY STATUTORY REQUIREMENTS 12

2.2.1 Introduction 12

2.2.2 Regulation in US offshore industry 13

2.2.3 Regulation in UK offshore industry 13

2.2.4 Regulation in Norwegian offshore industry 14

2.3 STANDARDS AND RECOMMENDED PRACTICES FOR STEEL STRUCTURES 14

2.3.1 Introduction 14

2.3.2 API RP-2A and API RP-2SIM (Structural Integrity Management) 15

2.3.3 API RP-2FSIM (Floating Systems Integrity Management) 18

2.3.4 ISO 19902 19

2.3.5 ISO 19901-9 20

2.3.6 NORSOK N-005 20

2.4 STANDARDS AND RECOMMENDED PRACTICES FOR MOORING SYSTEMS 20

2.4.1 Introduction 20

2.4.2 API RP-2MIM (Mooring Integrity Management) 21

2.4.3 IACS Guideline for survey of offshore moorings 22

2.5 STANDARDS AND GUIDANCE NOTES FOR CONCRETE STRUCTURES 23

2.5.1 Introduction 23

2.5.2 ISO 19903 concrete structures 23

2.5.3 Department of Energy Guidance Notes 27

2.5.4 NORSOK N-005 concrete structures 28

2.6 DISCUSSION AND SUMMARY 29

2.7 REFERENCES 30

3 DAMAGE TYPES IN OFFSHORE STRUCTURES 33

3.1 INTRODUCTION 33

3.1.1 General 33

3.1.2 Corrosion 34

3.1.3 Cracking due to fatigue 36

3.1.4 Dents, bows and gauges due to impact 37

3.1.5 Cracking due to Hydrogen Embrittlement 37

3.1.6 Erosion, wear and tear 38

3.1.7 Brittle Fracture 38

3.1.8 Grout crushing and slippage 38

3.2 PREVIOUS STUDIES ON DAMAGE TO OFFSHORE STRUCTURES 38

3.3 PREVIOUS STUDIES ON DAMAGE TO FIXED STEEL STRUCTURES 39

3.3.1 MTD Underwater inspection of steel offshore structures 39

3.3.2 MTD Review of repairs to offshore structures and pipelines 41

3.3.3 PMB AIM project for MMS 41

3.3.4 HSE study on causes of damage to fixed steel structures 44

3.3.5 Single sided closure welds 45

3.3.6 MSL Rationalization and optimization of underwater inspection planning report 46

3.3.…