a short brief about Offshore Pipeline Installation Engineering

1
a short brief aboutOffshore Pipeline
Installation Engineering
Vladimir Medio Sentosa Offshore Pipeline Engineer
(Installation) SapuraAcergy Sdn. Bhd.

• August 30, 2010

2
Offshore pipeline / installation engineering?
3
Pipeline?
4
Pipeline?
5
Main Equipment
6

• Conventional laybarge
• Using mooring to keep position
• Coverage area up to WD 50-100m
• Modern laybarge
• Using DP (dynamic positioning) to keep position
• Coverage area more than WD 50m

7
Process Overview

• Start-Up / Initiation
• Loading and storage
• Firing Line
• Welding
• NDT
• Field joint coating
• Tensioning
• Laydown

• Emergency
• Abandonment and Recovery

8
Installation Analysis

• Installation analysis
• Start up, normal laying, A/R analysis, laydown
• Local buckling check
• Fatigue analysis
• Free span / bottom roughness
• Based on DNV OS F101
• Section 12 K300, Simplified laying criteria
• Area Overbend and Segbend
• Check Stress and Strain
• Result of analysis is exceed the criteria?
• Environmental loads Hs, T, current
• Optimizations roller setting (barge/stinger),
  tension, trim, stinger
• Others buoyancy tank

9
S-Lay Method
10
OFFPIPE Software

• Static analysis
• Start up, A/R analysis, laydown, free span /
  bottom roughness
• Dynamic analysis
• Normal laying RAO, environment condition

11
Output OFFPIPE
12
(No Transcript)
13
Thank you!

• Vladimir Medio Sentosa
• Offshore Pipeline Engineer (Installation)
• vladimir.sentosa_at_sapuraacergy.com
• Desk 60386572961
• Mobile [phone]
• Alternatively
• vladimir.medio_at_yahoo.com
• www.vladvamphire.wordpress.com