Preface |
|
xiii | |
Definitions and abbreviations |
|
xv | |
|
1 Introduction To Underwater Inspection And Repair |
|
|
1 | (12) |
|
|
1 | (2) |
|
1.2 Why Do We Inspect and Repair Structures |
|
|
3 | (3) |
|
1.3 Types of Offshore Structures |
|
|
6 | (4) |
|
1.3.1 Fixed Steel Structures |
|
|
6 | (2) |
|
1.3.2 Floating Structures |
|
|
8 | (1) |
|
|
9 | (1) |
|
1.4 Overview of this Book |
|
|
10 | (1) |
|
|
11 | (1) |
|
|
11 | (2) |
|
2 Statutory Requirements For Inspection And Repair Of Offshore Structures |
|
|
13 | (24) |
|
|
13 | (1) |
|
2.2 Examples of Country Statutory Requirements |
|
|
14 | (3) |
|
|
14 | (1) |
|
2.2.2 Regulation in the US Offshore Industry |
|
|
15 | (1) |
|
2.2.3 Regulation in the UK Offshore Industry |
|
|
16 | (1) |
|
2.2.4 Regulation in the Norwegian Offshore Industry |
|
|
17 | (1) |
|
2.3 Standards and Recommended Practices for Steel Structures |
|
|
17 | (7) |
|
|
17 | (1) |
|
2.3.2 API RP-2A and API RP-2SIM (Structural Integrity Management) |
|
|
18 | (3) |
|
2.3.3 API RP-2FSIM (Floating Systems Integrity Management) |
|
|
21 | (1) |
|
|
22 | (1) |
|
|
23 | (1) |
|
|
23 | (1) |
|
2.4 Standards and Recommended Practices for Mooring Systems |
|
|
24 | (3) |
|
|
24 | (1) |
|
2.4.2 API RP-2MIM (Mooring Integrity Management) |
|
|
25 | (1) |
|
2.4.3 IACS Guideline for Survey of Offshore Moorings |
|
|
26 | (1) |
|
2.5 Standards and Guidance Notes for Concrete Structures |
|
|
27 | (6) |
|
|
27 | (1) |
|
2.5.2 ISO 19903---Concrete Structures |
|
|
27 | (4) |
|
2.5.3 Department of Energy Guidance Notes |
|
|
31 | (1) |
|
2.5.4 NORSOK N-005---Concrete Structures |
|
|
32 | (1) |
|
2.6 Discussion and Summary |
|
|
33 | (1) |
|
|
34 | (3) |
|
3 Damage Types In Offshore Structures |
|
|
37 | (42) |
|
|
37 | (6) |
|
|
37 | (1) |
|
|
38 | (2) |
|
3.1.3 Cracking Due to Fatigue |
|
|
40 | (1) |
|
3.1.4 Dents, Bows and Gouges Due to Impact |
|
|
41 | (1) |
|
3.1.5 Cracking Due to Hydrogen Embrittlement |
|
|
42 | (1) |
|
3.1.6 Erosion, Wear and Tear |
|
|
42 | (1) |
|
|
43 | (1) |
|
3.1.8 Grout Crushing and Slippage |
|
|
43 | (1) |
|
3.2 Previous Studies on Damage to Offshore Structures |
|
|
43 | (1) |
|
3.3 Previous Studies on Damage to Fixed Steel Structures |
|
|
44 | (13) |
|
3.3.1 MTD Underwater Inspection of Steel Offshore Structures |
|
|
44 | (2) |
|
3.3.2 MTD Review of Repairs to Offshore Structures and Pipelines |
|
|
46 | (1) |
|
3.3.3 PMB AIM Project for MMS |
|
|
47 | (3) |
|
3.3.4 HSE Study on Causes of Damage to Fixed Steel Structures |
|
|
50 | (1) |
|
3.3.5 Single-Sided Closure Welds |
|
|
51 | (1) |
|
3.3.6 MSL Rationalization and Optimisation of Underwater Inspection Planning Report |
|
|
52 | (2) |
|
3.3.7 Studies on Hurricane and Storm Damage |
|
|
54 | (3) |
|
3.4 Previous Studies on Damage to Floating Steel Structures |
|
|
57 | (4) |
|
3.4.1 D.En. Studies on Semi-Submersibles |
|
|
57 | (1) |
|
3.4.2 SSC Review of Damage Types to Ship-Shaped Structures |
|
|
57 | (2) |
|
3.4.3 Defect Type for Tanker Structure Components |
|
|
59 | (1) |
|
3.4.4 Semi-Submersible Flooding Incident Data |
|
|
59 | (2) |
|
3.5 Previous Studies on Damage Types to Mooring Lines and Anchors |
|
|
61 | (5) |
|
3.5.1 Introduction and Damage Statistics for Moorings |
|
|
61 | (1) |
|
3.5.2 API RP-2MIM Overview of Damage Types to Mooring Lines |
|
|
62 | (1) |
|
3.5.3 HSE Studies on Mooring Systems |
|
|
63 | (1) |
|
3.5.4 Studies on Corrosion of Mooring Systems |
|
|
64 | (1) |
|
3.5.5 Studies on Fatigue of Mooring Systems |
|
|
64 | (2) |
|
3.6 Previous Studies on Concrete Structures |
|
|
66 | (4) |
|
3.6.1 Concrete in the Oceans Project |
|
|
66 | (1) |
|
3.6.2 Durability of Offshore Concrete Structures |
|
|
67 | (1) |
|
3.6.3 PSA Study on Damage to Offshore Concrete Structures |
|
|
68 | (2) |
|
3.7 Previous Studies on Marine Growth (Marine Fouling) |
|
|
70 | (2) |
|
3.8 Summary of Damage and Anomalies to Offshore Structures |
|
|
72 | (4) |
|
|
72 | (1) |
|
3.8.2 Damage Types Specific to Steel Structures |
|
|
72 | (3) |
|
3.8.3 Damage Types Specific to Concrete Structures |
|
|
75 | (1) |
|
3.8.4 Summary Table of Damage to Different Types of Structures |
|
|
75 | (1) |
|
|
76 | (1) |
|
|
76 | (3) |
|
4 Inspection Methods For Offshore Structures Underwater |
|
|
79 | (62) |
|
4.1 Introduction to Underwater Inspection |
|
|
79 | (2) |
|
4.2 Previous Studies on Inspection |
|
|
81 | (19) |
|
|
81 | (1) |
|
4.2.2 SSC Survey of Non-Destructive Test Methods |
|
|
81 | (3) |
|
4.2.3 Underwater Inspection / Testing / Monitoring of Offshore Structures |
|
|
84 | (1) |
|
4.2.4 HSE Handbook for Underwater Inspectors |
|
|
85 | (1) |
|
4.2.5 MTD Underwater Inspection of Steel Offshore Structures |
|
|
85 | (1) |
|
4.2.6 Department of Energy Fourth Edition Guidance Notes on Surveys |
|
|
86 | (1) |
|
4.2.7 HSE Detection of Damage to Underwater Tubulars and Its Effect on Strength |
|
|
87 | (2) |
|
4.2.8 MSL Rationalization and Optimisation of Underwater Inspection Planning Report |
|
|
89 | (4) |
|
4.2.9 Projects on Testing of Inspection Methods and Their Reliability |
|
|
93 | (3) |
|
4.2.10 Concrete in the Oceans Programme |
|
|
96 | (4) |
|
4.3 Inspection and Inspection Methods |
|
|
100 | (12) |
|
|
100 | (1) |
|
|
100 | (3) |
|
4.3.3 Ultrasonic Testing Methods |
|
|
103 | (1) |
|
4.3.4 Electromagnetic Methods |
|
|
104 | (2) |
|
4.3.5 Radiographic Testing |
|
|
106 | (1) |
|
4.3.6 Flooded Member Detection |
|
|
106 | (2) |
|
|
108 | (1) |
|
4.3.8 Chloride Ingress Test |
|
|
108 | (1) |
|
4.3.9 Electro-Potential Mapping |
|
|
109 | (2) |
|
4.3.10 Cathodic Protection Inspection |
|
|
111 | (1) |
|
|
112 | (5) |
|
|
112 | (1) |
|
|
113 | (1) |
|
|
114 | (2) |
|
|
116 | (1) |
|
4.4.5 Summary of Inspection Methods and Their Deployment |
|
|
117 | (1) |
|
4.5 Competency of Inspection Personnel and Organisations |
|
|
117 | (7) |
|
|
117 | (2) |
|
4.5.2 Regulatory Requirements on Competency |
|
|
119 | (1) |
|
4.5.3 Requirements on Competency in Standards |
|
|
119 | (2) |
|
4.5.4 Certification and Training of Inspectors |
|
|
121 | (1) |
|
4.5.5 Trials to Study Inspector Competency |
|
|
121 | (1) |
|
4.5.6 Organisational Competency |
|
|
122 | (2) |
|
4.6 Reliability of Different Inspection Methods Underwater |
|
|
124 | (2) |
|
4.7 Inspection of Fixed Steel Structures |
|
|
126 | (2) |
|
4.8 Inspection of Concrete Structures |
|
|
128 | (5) |
|
4.9 Inspection of Floating Structures and Mooring Systems |
|
|
133 | (4) |
|
|
137 | (4) |
|
5 Structural Monitoring Methods |
|
|
141 | (20) |
|
|
141 | (5) |
|
|
141 | (1) |
|
5.1.2 Historical Background |
|
|
142 | (3) |
|
5.1.3 Requirements for Monitoring in Standards |
|
|
145 | (1) |
|
5.2 Previous Studies on Structural Monitoring Methods |
|
|
146 | (5) |
|
5.2.1 MTD Underwater Inspection of Steel Offshore Installations |
|
|
146 | (1) |
|
5.2.2 HSE Review of Structural Monitoring |
|
|
146 | (2) |
|
5.2.3 HSE Updated Review of Structural Monitoring |
|
|
148 | (2) |
|
|
150 | (1) |
|
5.3 Structural Monitoring Techniques |
|
|
151 | (4) |
|
|
151 | (1) |
|
5.3.2 Acoustic Emission Technique |
|
|
151 | (1) |
|
|
152 | (1) |
|
5.3.4 Global Positioning Systems and Radar |
|
|
152 | (1) |
|
|
153 | (1) |
|
5.3.6 Continuous Flooded Member Detection |
|
|
153 | (1) |
|
5.3.7 Natural Frequency Monitoring |
|
|
153 | (1) |
|
|
154 | (1) |
|
5.3.9 Riser and Anchor Chain Monitoring |
|
|
155 | (1) |
|
5.3.10 Acoustic Fingerprinting |
|
|
155 | (1) |
|
5.3.11 Monitoring with Guided Waves |
|
|
155 | (1) |
|
5.4 Structural Monitoring Case Study |
|
|
155 | (2) |
|
5.5 Summary on Structural Monitoring |
|
|
157 | (2) |
|
|
159 | (1) |
|
|
159 | (2) |
|
6 Inspection Planning, Programme And Data Management |
|
|
161 | (26) |
|
|
161 | (12) |
|
|
161 | (1) |
|
6.1.2 Long-Term Inspection Plan |
|
|
162 | (1) |
|
6.1.3 Approaches for Long-Term Inspection Planning |
|
|
163 | (4) |
|
6.1.4 Inspection Programme |
|
|
167 | (3) |
|
6.1.5 Integrity Data Management |
|
|
170 | (3) |
|
6.1.6 Key Performance Indicators |
|
|
173 | (1) |
|
6.2 Previous Studies on Long-Term Planning of Inspections |
|
|
173 | (7) |
|
6.2.1 PMB AIM Project for MMS |
|
|
173 | (1) |
|
6.2.2 MSL Rationalization and Optimisation of Underwater Inspection Planning Report |
|
|
174 | (1) |
|
6.2.3 HSE Study on the Effects of Local Joint Flexibility |
|
|
175 | (1) |
|
6.2.4 HSE Ageing Plant Report |
|
|
176 | (1) |
|
6.2.5 Studies on Risk-Based and Probabilistic Inspection Planning |
|
|
176 | (4) |
|
6.2.6 EI Guide to Risk-Based Inspection Planning |
|
|
180 | (1) |
|
6.3 Summary on Inspection Planning and Programme |
|
|
180 | (4) |
|
|
180 | (1) |
|
6.3.2 Fixed Steel Platforms |
|
|
181 | (1) |
|
6.3.3 Floating Steel Structures |
|
|
182 | (1) |
|
|
183 | (1) |
|
|
184 | (1) |
|
|
184 | (3) |
|
7 Evaluation Of Damage And Assessment Of Structures |
|
|
187 | (52) |
|
|
187 | (2) |
|
7.2 Previous Studies on Evaluation of Damaged Tubulars |
|
|
189 | (26) |
|
7.2.1 Remaining Fatigue Life of Cracked Tubular Structures |
|
|
189 | (6) |
|
7.2.2 Static Strength of Cracked Tubular Structures |
|
|
195 | (4) |
|
7.2.3 Effect of Multiple Member Failure |
|
|
199 | (2) |
|
7.2.4 Corroded Tubular Members |
|
|
201 | (4) |
|
7.2.5 Dent and Bow Damage to Underwater Tubulars and Their Effect on Strength |
|
|
205 | (3) |
|
7.2.6 Studies on Assessment of System Strength |
|
|
208 | (1) |
|
7.2.7 PMB AIM Project for MMS |
|
|
209 | (2) |
|
7.2.8 MSL Significant JIP for MMS |
|
|
211 | (3) |
|
7.2.9 MSL Assessment of Repair Techniques for Ageing or Damaged Structures |
|
|
214 | (1) |
|
7.3 Previous Studies on Evaluation of Damaged Plated Structures |
|
|
215 | (3) |
|
|
215 | (1) |
|
7.3.2 SSC Studies on Residual Strength of Damaged Plated Marine Structures |
|
|
216 | (2) |
|
7.4 Previous Studies on Evaluation of Damaged Concrete Structures |
|
|
218 | (5) |
|
7.4.1 Department of Energy Assessment of Major Damage to the Prestressed Concrete Tower |
|
|
218 | (2) |
|
7.4.2 Department of Energy Review of Impact Damage Caused by Dropped Objects |
|
|
220 | (1) |
|
7.4.3 HSE Review of Durability of Prestressing Components |
|
|
220 | (1) |
|
7.4.4 HSE Review of Major Hazards to Concrete Platforms |
|
|
220 | (1) |
|
7.4.5 Department of Energy Review of the Effects of Temperature Gradients |
|
|
221 | (1) |
|
7.4.6 Concrete in the Oceans Review of Corrosion Protection of Concrete Structures |
|
|
221 | (1) |
|
7.4.7 Norwegian Road Administration Guideline V441 |
|
|
222 | (1) |
|
7.5 Practice of Evaluation and Assessment of Offshore Structures |
|
|
223 | (9) |
|
|
223 | (2) |
|
7.5.2 Fixed and Floating Steel Structures |
|
|
225 | (5) |
|
7.5.3 Concrete Structures |
|
|
230 | (2) |
|
|
232 | (7) |
|
8 Repair And Mitigation Of Offshore Structures |
|
|
239 | (98) |
|
8.1 Introduction to Underwater Repair |
|
|
239 | (3) |
|
8.2 Previous Generic Studies on Repair of Structures |
|
|
242 | (8) |
|
8.2.1 UEG Report on Repair to North Sea Offshore Structures |
|
|
242 | (1) |
|
8.2.2 MTD Study on Repairs of Offshore Structures |
|
|
242 | (5) |
|
8.2.3 UK Department of Energy Fourth Edition Guidance Notes |
|
|
247 | (1) |
|
8.2.4 DNV GL Study on Repair Methods for PSA |
|
|
248 | (2) |
|
8.3 Previous Studies on Repair of Tubular Structures |
|
|
250 | (26) |
|
8.3.1 Grout Repairs to Steel Offshore Structures |
|
|
250 | (2) |
|
8.3.2 UK Joint Industry Repairs Research Project |
|
|
252 | (2) |
|
8.3.3 UK Department of Energy and TWI Study on Repair Methods for Fixed Offshore Structures |
|
|
254 | (3) |
|
8.3.4 UK Department of Energy-Funded Work on Adhesive Repairs |
|
|
257 | (3) |
|
8.3.5 Residual and Fatigue Strength of Grout-Filled Damaged Tubular Members |
|
|
260 | (1) |
|
8.3.6 Fatigue Life Enhancement of Tubular Joints by Grout Injection |
|
|
261 | (1) |
|
8.3.7 ATLSS Projects on Repair to Dent-Damaged Tubular Members |
|
|
261 | (2) |
|
8.3.8 ATLSS Projects on Repair to Corrosion Damaged Tubulars |
|
|
263 | (2) |
|
8.3.9 MSL Strengthening, Modification and Repair of Offshore Installations |
|
|
265 | (1) |
|
8.3.10 MSL Underwater Structural Repairs Using Composite Materials |
|
|
266 | (1) |
|
8.3.11 HSE Experience from the Use of Clamps Offshore |
|
|
267 | (2) |
|
8.3.12 MSL Study on Neoprene-Lined Clamps |
|
|
269 | (1) |
|
8.3.13 MSL Repair Techniques for Ageing and Damaged Structures |
|
|
270 | (3) |
|
8.3.14 MMS Studies on Hurricane Damage and Repair |
|
|
273 | (1) |
|
8.3.15 BOEME Report on Wet Weld Repairs to US Structures |
|
|
274 | (2) |
|
8.4 Previous Studies on Repair of Concrete Structures |
|
|
276 | (10) |
|
|
276 | (1) |
|
8.4.2 Repair of Major Damage to Concrete Offshore Structures |
|
|
277 | (1) |
|
8.4.3 Scaling of Underwater Concrete Repairs |
|
|
278 | (2) |
|
8.4.4 Assessment of Materials for Repair of Damaged Concrete Underwater |
|
|
280 | (5) |
|
8.4.5 Effectiveness of Concrete Repairs |
|
|
285 | (1) |
|
8.5 Previous Studies on Repair of Plated Structures |
|
|
286 | (3) |
|
8.6 Repair of Steel Structures |
|
|
289 | (27) |
|
|
289 | (1) |
|
8.6.2 Selection of Mitigation and Repair Methods |
|
|
290 | (5) |
|
8.6.3 Machining Methods (Grinding) |
|
|
295 | (2) |
|
|
297 | (1) |
|
8.6.5 Weld Residual Stress Improvement Methods (Peening) |
|
|
297 | (1) |
|
8.6.6 Stop Holes and Crack-Deflecting Holes |
|
|
298 | (2) |
|
8.6.7 Structural Modifications |
|
|
300 | (1) |
|
|
301 | (4) |
|
|
305 | (1) |
|
8.6.10 Removal of Structural Elements |
|
|
305 | (1) |
|
8.6.11 Bonded-Type Repairs |
|
|
306 | (1) |
|
8.6.12 Structural Clamps and Sleeves |
|
|
307 | (3) |
|
8.6.13 Grout Filling of Members |
|
|
310 | (2) |
|
8.6.14 Grout Filling of Tubular Joints |
|
|
312 | (1) |
|
8.6.15 Installation of New Structural Elements |
|
|
312 | (1) |
|
8.6.16 Summary of Steel Repairs |
|
|
313 | (3) |
|
8.7 Repair of Corrosion and Corrosion Protection Systems |
|
|
316 | (3) |
|
|
316 | (2) |
|
8.7.2 Repair of Damaged Coatings |
|
|
318 | (1) |
|
8.7.3 Replacement of Corroded Material |
|
|
318 | (1) |
|
8.7.4 Repair or Replacement of the Corrosion Protection System |
|
|
318 | (1) |
|
8.8 Repair of Mooring Systems |
|
|
319 | (1) |
|
8.9 Repair of Concrete Structures |
|
|
320 | (8) |
|
|
320 | (2) |
|
8.9.2 Choice of Repair Method |
|
|
322 | (1) |
|
8.9.3 Concrete Material Replacement |
|
|
323 | (2) |
|
|
325 | (1) |
|
8.9.5 Repair of Reinforcement and Prestressing Tendons |
|
|
326 | (1) |
|
8.9.6 Summary of Concrete Repairs |
|
|
327 | (1) |
|
8.10 Overview of Other Mitigation Methods |
|
|
328 | (1) |
|
|
329 | (1) |
|
|
329 | (8) |
|
9 Conclusions And Future Possibilities |
|
|
337 | (5) |
|
|
337 | (1) |
|
9.2 Emerging Technologies |
|
|
338 | (2) |
|
|
340 | (1) |
|
|
341 | (1) |
Index |
|
342 | |