Experiences Offshore Oil & Gas pipelines

YEAR

PROJECT NAME
 & LOCATION

PRIME Contractor

SCOPE OF WORK

Ongoing

Chevron Gorgon
Development Project
AUSTRALIA

Sapura Clough JV

Shore approach and Shallow water Pipeline Installation

• Pipelaying of 12km of a 20” pipeline

2011/12

TOTAL E&P Indonesia South Mahakam Development Project INDONESIA

NISCONI

Shore approach and Shallow water Pipeline Installation:

• Pipelaying of 11000m of a 20” pipeline
• post trenching over 6km
• max Water Depth 20m
2011/12 PEARL OIL Indonesia Ruby Field Development Project INDONESIA NISCONI

Shore approach and Shallow water Pipeline Installation:

• Pipe laying of 11000m of a 14” pipeline
• post trenching over 6km
• max Water Depth 20m
2010
PHE ONJW Maintenance 2009  West Java INDONESIA
CATHEM

Offshore pipeline installation and risers replacement between platforms:

• 3 X10” pipelines with a total length of 13km Pipe lay
• 1 x 6” pipeline along 2km
• 4 risers’ replacements
• Water Depth from 36m to 47m
2009

PETRONAS EPCI West Luttong Pipeline Replacement Project  - Miri
MALAYSIA

Alam Maritim

Shore approach and shallow water pipe laying

• Pipe laying of 4.8 km of 18" pipeline – Max WD 13m
• 700 m beach pull
• Two surface tie-in on 18" pipeline
• Providing shore pull and pipelaying Procedures/eng neering along with Marine Crew
2009

PERTAMINA EPCI Tuban Terminal Transit Utama - Tuban INDONESIA

IKPT/ HAFAR

Shore approach and shallow water pipeline Installation:

• Pipe laying of 3 x 3.3 km of 18" pipeline
• 3 x beach pull
• Pipe laying of 6.2 km of 32" pipeline connected to SPM
• 1 x beach pull
Max Water Depth at SPM location: 35m
2007

PETRONAS EPCI West Luttong Pipeline Replacement Project Miri MALAYSIA

TLO - PBJV

Offshore Pipeline installation & Risers replacement Project:

• Pipelaying of 10 km of 18" pipeline including
1 x beach pull and 1 x riser
• Pipelaying of 2 km of 10" pipeline including 2 x risers
• Pipelaying of 2 km of 24" pipeline including 1 x beach pull (for effluent)
• Surface tie-in on 18" pipeline in 32 m water depth
Max WD: 33m at platform location
2006

Total E&P Indonesia EPCI SISINUBI FIELD Development project
Mahakam - INDONESIA

Hyundai Heavy Industries
Shore approach and Shallow water Pipeline Installation:
• Pre trenching works at Onshore part, 900m length in soft mud,
• Pre-Dredging works at very shallow water area and land fall
• Installation of 19km of 26" offshore pipeline (full Auto Welding)

• 1050m of pipeline push-pull installation
• 18.5km of post-trenching operation
• 6 existing live pipelines crossings
• 2 Near shore tie in
2006
PGN EPCI SOUTH SUMATERA WESTJAVA phase 1 INDONESIA
NISCONI
Shore approach and Shallow water Pipeline Installation:
Labuan Maringgai (SUMATRA) Section
• Shore crossing and shallow water pipe laying: Total 6500m long
•1300m Pre Trenching and Post trenching 2m top of pipe on the whole length.
• 3km in less than 0.5m water depth – max WD 13m

Teluk Banten (WEST JAVA) Section
• Shore crossing and shallow water pipe laying: Total 6000m long
• 410m onshore section - 1600m pre trenched in mangrove and  280m section in coral zone
• Post trenching 2m top of pipe on the whole length.
• Pipeline pre-commisioning
 max WD 18m
2005

Exxon Mobil Sakhalin 1 - Phase 1 EPC2 – Pipeline & Export Terminal Sakhalin island RUSSIA

Nippon Steel Corp.
Shore approach and Shallow water Pipeline Installation:
• Installation of 20km of a 24” offshore pipeline across the Tartar Strait (full Auto Welding)
• Storms above 50 knots
• Current stream up to 3.5 knots
2003
PGN EPCI SUMATERA - BATAM Gas Line INDONESIA
Hyundai Heavy Industries

Shore approach and Shallow water Pipeline Installation:

KUALA TUNGKAL (SUMATRA) SECTION

• 12 800m pipe laying of 28" pipeline max WD15m
• 300m section in the pre trench mangrove
• 900m section laid in a pre trench channel (cutter suction dredger)
• 11 600m laid on soft seabed for future post trenching
• 9km in less than 0.5m water

BATAM SECTION:

• 2700m pipe laying of 28" pipeline max WD18m
• 100m onshore section ,900m section in the pre trench mangrove, 280m section in a pre trench coral zone
• 1420m laid on seabed for future post trenching
1999
SHELL EPCI LPG TERMINAL PROJECT Colombo SRI LANKA
GEOCEAN

Offshore Pipe laying & Single Point Mooring Installation:

• SPM type CALM buoy with PLEM 60t,
• 4km of 10" Offshore Pipelaying
• all post-trenched with 0.5 to 2m cover
• 2km of 10" Onshore Pipelaying
• 3 HDD sections: 710m under lagoon, 600m and 530m under canal alongside road.
• Construction of Pig Launcher/Receiver, Pipeline filters, Metering Station.
•  Water depth: 36m at SPM site location
1998
EPCI WATER INTAKE FOR POWER PLANT PHILIPPINES
GEOCEAN

Offshore Steel Water Intake pipeline Installation:
• Installation of 400m 48" pipeline – Max WD 15m
• Fabrication by 24 m elements, flange connection
• Cathodic protection with sacrificial anodes
• 4’’ internal PVC pipe for chlorination

1998
TOTAL EPCI NAPHTA IMPORT TERMINAL MYANMAR
GEOCEAN

Offshore pipeline installation & Conventional Buoy Mooring installation :
• Installation of 600m 6" offshore pipeline – max WD 18m
• Installation of 8km of 4" Onshore pipeline
• Installation of 5 x CBM + PLEM
• Pre Trenching and Pipe pulling

1998

TOTAL E&P Indonesia INDONESIA TUNU – PECIKO river crossings

PT Citra

Shore approach, shallow water pipe laying and River Crossings:

• 2900m Pipe laying of 42" max WD 22m
• 6300m Pipe laying of 8", 20" and 24" max WD 17m
• Full pre-surveys and post-surveys of pipelines.
• Dredging through sand banks with cutter suction barges to  prepare access channels for lay barge and trenching barges.
• Dredging with clamshell dredger of clusters on rivers banks.
• Installation of concrete mattresses on pipeline crossings areas.
• Gravel dumping on pipeline sections.

 

 

 
PT GEOCEAN INDONESIA
Offshore Oi l &  Gas  Contractor
Wisma 77, 2nd Floor
JL. S. Parman Kav. 77, Slipi, Jakarta Barat11410 - Indonesia
Tel. +62 21 536 3212 - Fax +62 21 536 3251