Midline Tie-in or Above Water Tie-in (AWTI) is an operation where two laid down pipelines on the seabed are welded together after being lifted above water using vessel davits. For AWTI we determine/provide:
- Steps for recovering the pipelines
- Welded Configuration for recovered pipes
- Steps for lowering the completed pipeline
- Weld excavation analysis
- Minimum weld thickness assessment for removal of the welding clamp
- Offshore Procedures to be followed during execution
Above water tie in.
Sumber gambar : https://vladvamphire.files.wordpress.com/2009/06/5.jpg
Daftar Pustaka :
http://www.oesl.nl/expertise/pipelay
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