offshore presentation for bj1
TRANSCRIPT
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ASPROFOS ENGINEERING S.A.
OFFSHORE SECTION OF STEFANIALIVERI
PIPELINE
Construction Supervision Overview
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Project Overview
Installation of a N.G.H.P Offshore Pipeline
with the purpose to supply natural gas to
Evia island and a Power Plant in Aliveri.
Size of the pipeline :20
Total length of the Pipeline approximately
14.2 km
Maximum water depth along the pipeline
route: 70m.
Offshore pipeline was consist of two offshore
sections, joined together offshore by Above
Water Tie In method.
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Pipeline Route Layout
Varnavas
Landfall
KaravosLandfall
AWTI
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The Team
The Team was divided into two (2) sub teams.
The Supervising Engineering Team (Field):
Site Construction Supervision Head
Site Offshore Pipeline Supervising Engineer
Site Shore Approach Supervising Engineer
Site Engineer
Management/Review /Support Team (Head Offices):
Project Management
Pipeline Specialists
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Main Documents Review
Project Management Documents: Project Overview Manual, Quality Manuals, Project Control Docs, Projects HSE Docs etc
Design Engineering Documents:
PIPELINE ON BOTTOM STABILITY ANALYSIS
PIPELINE FREE SPAN ANALYSIS
CATHODIC PROTECTION PHILOSOPHY AND DETAILED DESIGN REPORT
PIPELINE PROTECTION DESIGN
TECHNICAL SPECIFICATION FOR SACRIFITIAL ANODES
GEOTECHNICAL CROSS SECTIONS
VESSEL POSITIONING PROCEDURE
SURVEY REPORT & CHARTS (PRE LAYAS LAID)
FLOODING, CLEANING, GAUGING AND HYDROTESTING PROCEDURE
PIPELINE ABOVE WATER TIE IN MANUAL
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Main Documents Review
Design Engineering Documents: SHORE APPROACH METHOD
START-UP MOORING ARRANGEMENT
SHORE PULL SEQUENCE
PIPELINE AWTI SEQUENCE
PIPES TRANSPORTATION (METHODS)
PRE-LAY SURVEY CHARTS FOR ANCHOR CORRIDOR
GEOTECHNICAL STUDY FOR THE TRENCH DREDGING AND BACKFILL
PRE-LAY SURVEY AT LANDFALLS
TRENCHING AND BACKFILLING MANUAL
WAVE PREDICTION STUDY
WAVE PREDICTION STUDY AT LANDFALL POINTS
WELDING COATING PROCEDURE
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Main Field Activities Sequence
Pipe/Material/Equipment Deliverance.
Installation of Anchors and Concrete Blocks.
Dredging Activities Mooring Activities
Welding/Sandblasting/Coating Activities
Shore Pull Activities
Normal Pipe Laying
AWTI
Backfilling/Wave Protection/ Reinstatement
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Main Field Activities
1. Pipe/Material/Equipment Deliverance.
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Main Field Activities
2. Anchoring - Mooring.
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Main Field Activities
3. Dredging Activities
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Main Field ActivitiesTrench Long. Profile
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4. Welding/Sandblasting/Coating Activities
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Main Field Activities
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Main Field Activities
6. Normal Pipe Laying
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Main Field Activities
7. AWTI
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Main Field Activities
8. Backfilling/Wave Protection/ Reinstatement
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Wave Protection Design
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284, EL. VENIZELOU str. GR-176 75 KALLITHEAATHENS, GREECE
Tel.: +302109491600
Fax: +302109491610
http://www.asprofos.gr
THANK YOU FOR YOUR ATTENTION!
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