Ebook: SUBTECH ’91: Back to the Future

The concept of using flexible, reelable pipe to transport liquids, gases, and vapours is not a new one. As early as the 1940s a steel braided elastomeric pipeline was developed for the Allied Forces in order to transport fuels to support the Normandy Beacheads. In fact, the longest flexible pipeline ever constructed is likely to be that laid across the English Channel as part of 'Operation Pluto'. The methodology used to handle and instal such pipe is also not new. Ellis (1943, London) in an early patent specification identifies three basic objectives for a flexible pipelining method. These are: prefabrication of the pipe onshore; coiling of the pipe on suitable drums or reels; and using such reels to lay pipe from anchored or motorised barges. The design concept for flexible pipe is also not a new invention given that flexible hoses and umbilicals have been in service for more than sixty years. A break-through was however achieved by the French Institute of Petroleum in the early 1970s when they developed an improved steel reinforced pipe structure having a high axial loading capaci ty which utilised corrosion and hydrocarbon resistant polymers to extend pipe service lifetime. This early pipe design utilised established cable making techniques to apply steel armour and axially and radially reinforce alternating layers of polymer sheaths. The pipe was primarily developed as a flowline for use in static seabed applications.

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Content:
Front Matter....Pages i-x
Front Matter....Pages 1-1
Production Technology for Subsea Development Wells....Pages 3-28
Flexible Pipe Technology — A Decade of Change....Pages 29-62
A Review of Past and Future Developments in Bundled Pipeline Installation by the Mid Depth Tow Method....Pages 63-63
Subsea Repair of Concrete Weight Coating on 30? North Sea Pipeline....Pages 65-65
Developing the Troll Project....Pages 67-82
Wellhead Protection at Gannet B....Pages 83-83
Installation and Maintenance of Subsea Isolation Valves....Pages 85-95
Review of Subsea Isolation Valves Installations in the UK North Sea....Pages 97-104
Recent Developments in the Design of Subsea Isolation Valve Installations....Pages 105-119
Front Matter....Pages 121-121
Dynamically Positioned Vessels — Their Suitability and Safe Operations....Pages 123-132
Getting the DP Act Together....Pages 133-151
Subsea Support Vessel for the Nineties....Pages 153-168
Diving and Underwater Services — An Overview....Pages 169-179
Advances in ROV Tooling for Subsea Cable Repair and Maintenance....Pages 181-196
The Application of Work Class ROV’s....Pages 197-204
R.O.V. Personnel Training Past, Present & Future....Pages 205-216
Front Matter....Pages 217-217
The FUDT-Project (Research and Development Project in Diving Technology)....Pages 219-222
Hyperbaric Pipeline Welding Beyond 600msw: A Conceptual Proposal....Pages 223-239
ROV Operated Electrical Connector....Pages 241-247
Front Matter....Pages 249-249
Hyperbaric Evacuation....Pages 251-254
Front Matter....Pages 249-249
Risk Assessment of a Hyperbaric Evacuation System....Pages 255-268
Diving Incident Data — The Way Ahead....Pages 269-273
An End to Decompression Sickness? A New Approach to the Decompression Disorders....Pages 275-282
A New Approach to Air Diving....Pages 283-287
HADES, Highest Accumulated Decompression Score....Pages 289-302
Inshore Diver Safety — A Review of Recent Developments....Pages 303-310
Front Matter....Pages 311-311
Optimisation of Underwater Inspection Programmes....Pages 313-317
Real Time Photogrammetry — A Technique for Today or Tomorrow?....Pages 319-331
Alternative Approaches to Pipeline Survey: The Pipeline Engineer’s View....Pages 333-345
Pipeline Freespan Monitoring....Pages 347-354

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Content:
Front Matter....Pages i-x
Front Matter....Pages 1-1
Production Technology for Subsea Development Wells....Pages 3-28
Flexible Pipe Technology — A Decade of Change....Pages 29-62
A Review of Past and Future Developments in Bundled Pipeline Installation by the Mid Depth Tow Method....Pages 63-63
Subsea Repair of Concrete Weight Coating on 30? North Sea Pipeline....Pages 65-65
Developing the Troll Project....Pages 67-82
Wellhead Protection at Gannet B....Pages 83-83
Installation and Maintenance of Subsea Isolation Valves....Pages 85-95
Review of Subsea Isolation Valves Installations in the UK North Sea....Pages 97-104
Recent Developments in the Design of Subsea Isolation Valve Installations....Pages 105-119
Front Matter....Pages 121-121
Dynamically Positioned Vessels — Their Suitability and Safe Operations....Pages 123-132
Getting the DP Act Together....Pages 133-151
Subsea Support Vessel for the Nineties....Pages 153-168
Diving and Underwater Services — An Overview....Pages 169-179
Advances in ROV Tooling for Subsea Cable Repair and Maintenance....Pages 181-196
The Application of Work Class ROV’s....Pages 197-204
R.O.V. Personnel Training Past, Present & Future....Pages 205-216
Front Matter....Pages 217-217
The FUDT-Project (Research and Development Project in Diving Technology)....Pages 219-222
Hyperbaric Pipeline Welding Beyond 600msw: A Conceptual Proposal....Pages 223-239
ROV Operated Electrical Connector....Pages 241-247
Front Matter....Pages 249-249
Hyperbaric Evacuation....Pages 251-254
Front Matter....Pages 249-249
Risk Assessment of a Hyperbaric Evacuation System....Pages 255-268
Diving Incident Data — The Way Ahead....Pages 269-273
An End to Decompression Sickness? A New Approach to the Decompression Disorders....Pages 275-282
A New Approach to Air Diving....Pages 283-287
HADES, Highest Accumulated Decompression Score....Pages 289-302
Inshore Diver Safety — A Review of Recent Developments....Pages 303-310
Front Matter....Pages 311-311
Optimisation of Underwater Inspection Programmes....Pages 313-317
Real Time Photogrammetry — A Technique for Today or Tomorrow?....Pages 319-331
Alternative Approaches to Pipeline Survey: The Pipeline Engineer’s View....Pages 333-345
Pipeline Freespan Monitoring....Pages 347-354
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