| DLB NorCE ENDEAVOUR - Build To Operations |
|
| |
|
|
| NuCoastal Bua-Ban & Songkhla Field Development |
|
| |
|
|
| Origin Energy - Yolla Mid Life Enhancement (MLE) Project |
| Working with Origin Energy, OCS provided the following work scope: |
 |
In conjunction with WorleyParsons (FEED contractor), develop detail engineering procedures & design any required installation aids (bumpers, guides, etc) for the lifting and installation of accommodation & utilities modules and the rig grillage |
|
Check the engineering & supervise the loading & unloading of the accommodation and utilities modules & rig grillage (onto and from the cargo ship) |
|
Supervise all heavy lifting & positioning operations offshore for the modules & rig grillage installation |
|
Check the suitability of various port in Australia/Tasmania for loading & unloading the modules and rig grillage onto the AHT |
|
Engineer, procure & supervise the transport & installation of the pre-laid mooring systems. |
|
Engineer the Yolla site pre-laid mooring system, in particular, any connect/disconnect mechanism to maximize the connect/disconnect weather limits and minimize weather downtime for the barge operation |
|
Provide Weather Management Plan which clearly states the required secure operation time for site abandonment decision making |
|
Perform feasibility study for the use of RAR (Rig Anchor Release) as a quick anchor release mechanism |
|
Specify and assist in securing the necessary marine vessel |
|
Optimise the use of all the required marine vessels and any required onshore support bases for the transport & installation scope, including the selection of dry tow for the transport of the barge. |
|
|
| Kangean Energy Indonesia Limited - TSB Development Project |
| Construction Engineering and Management |
|
Tow/ stability analysis and sea fastening design of riser base, manifold and hot tap protection. |
|
Installation engineering of above structures |
|
Pipeline Installation Engineering included: |
| |
|
Static and Dynamic Pipelay Analysis |
|
Abandonment and Recovery Analysis |
|
Start-Up and Lay down Analysis |
|
Weld Repair Analysis |
|
Local Buckling Checks |
|
|
Flowline and umbilical installation engineering |
|
Pipe haul tow/stability analysis and sea fastening design |
|
| |
|
|
| Oceanic 5000 – Build To Operations |
|
|
|
|
| M3nergy FSO for JDA B-17 Field Development Project |
|
|
|
|
Hess Indonesia Pangkah Engineering and Project Management
|
| Provide Engineering and Project Management for the following work scope (site location Ujung Pangkah, offshore Gresik) : |
|
Detail engineering for three Flowlines (approximately 5.5 km long each)– 16” Gas line, 12” Liquid Line and 6” Gas Lift line.
From WHP-A (existing) to new WHP-B. |
|
Management of pipeline coating for FBE, Neoprene and concrete weight coat. |
|
Construction Engineering for the Transportation and Installation of the three Flowlines and WHP-B platform. |
|
Transportation and Installation of three Flowlines (including post trenching burial, pigging and hydrotesting, dewatering, drying and nitrogen packing). |
|
Transportation of WHP-B platform comprising one 370mT, eight-legged jacket, three section piles and 1500mT Topside. |
|
Installation of WHP-B platform comprising one 370mT, eight-legged jacket, three section piles and 1500mT Topside. |
|
| |
|
|
Star Petroleum Kakap Field Redevelopment
Working with PT Timas OCS provided the installation management, engineering and planning; including vessel selection, chartering and offshore execution for redevelopment work in the Kakap field for Star Petroleum. Work comprised 10” and 6” infield pipelines, risers and tie ins and subsea umbilical installation with associated I tubes and subsea completions in 95 meter water depth at Kakap Field, Indonesia. |
| Scope of work Summary |
|
Detailed installation engineering for installation of the subsea pipelines, platform risers and I tubes and subsea umbilicals. |
|
Chartering of pipelay installation vessel and dive support vessel. |
|
Prefabrication and offshore installation. |
|
Pipeline pre-commissioning using in-house personnel and equipment. |
|
|
|
|
Conoco Phillips North Belut Subsea Cable Installation and Project Management
Working with PT Timas OCS provided the installation management, engineering and planning; including vessel selection, chartering and offshore execution for Conoco Phillips North Belut CPP to WHP-C Subsea Cable.(site location North Belut Field, Natuna Sea). |
|
|
ConocoPhillips North Belut Bridge Engineering and Project Management
|
OCS provided the installation management, engineering and planning; including vessel selection, chartering and offshore execution for
Conocophillips North Belut CPP Connecting Bridge Installation (site location North Belut Field, Natuna Sea).
|
| |
|
|
Pipe Lay Systems on PL1
POE-PL1 is a pipe lay barge with a fixed truss stinger. The same was modified and strengthened to be used for the Serica project to lay the 14” pipeline at a maximum depth of 55m. The modifications carried out were :
|
Stinger and A Frame strengthening: the stinger was a 2D plane truss which was not sufficient and user friendly for the purpose. Therefore a 3D truss stinger was conceptualized, designed and fabricated. The A-Frame support of the stinger was also re designed and strengthened to suit the excess load. A unique method to change the stinger angle using the fixed length pennants but different attachment points on the hook on the A Frame was conceptualized, designed and fabricated, this proved extremely efficient offshore since changing the stinger angle took very less time. The photos of the modified stinger and A-Frame and the hook connection are given.
Ready rack and monorails: The barge did not have a ready rack and the loading onto the pipe ramp rollers was done by the crawler crane which was very weather sensitive. A ready rack was designed and fabricated such that five pipes could be stored at the pipe roller elevation and could be loaded onto the rollers. A unique way of loading on to the pipe rollers by using a monorail was conceptualized, design and fabricated. This proved extremely efficient offshore since it was very less weather dependent and the speed of loading the pipe onto the rollers was very high there by reducing the actual time required to lay each joint.
Stinger hitch: The stinger hitch on the barge was re designed and strengthened. An offshore friendly catcher arrangement was fabricated at the hitch location as a contingency in case the stinger has to be taken out and re instated offshore.
|
| Modification Analysis Report was issued covering : |
|
Brief description of the work carried out
1. Strengthening of ready rack
2. Strengthening of monorails
3. Strengthening of pipe ramp supports below ready rack
4. Strengthening of the stinger and A Frame (includes checking of pennants)
|
|
Loadings |
|
The stresses / stress ratios in the members |
|
Photographs of the strengthening performed |
|
STAAD input/ output of all the structural analysis. |
|
| |
|
|
Asia Petroleum Development (APD) - Glagah Kambuna Field Development Project
OCS was commissioned by the main contractor PT Timas to perform the construction engineering, equipment preparation and execution supervision for the installation of a 42 km 14” gas export pipeline from the Kambuna platform offshore North Sumatera to a landfall Northeast of Medan.
|
| Salient features of the project included. |
|
5 km beach approach. |
|
Duplex line pipe in the platform approach area. |
|
Pre and Post trenching of 13 km of the pipeline to a cover of 2 metres. |
|
Pre-commissioning of pipeline. |
|
Topsides installation and Hook up. |
|
| Starting with basically a clean sheet OCS designed and supervised the rig up and the operation of the following construction spreads. |
|
Pre-trenching spud barge outfitted with Caterpillar 375 excavators which completed 5.0 kilometres of trenching, beach pull support, onshore tie-in and backfilling in duration of 90 days. |
|
Shallow water pipelay barge PL1 which had a peak layrate of 151 joints per day and an average of 110 with a spread cost under 100,000 per day. |
|
Pull barge rigged with linear winch and 5000 metres of 2.5” cable for a 5 km beach pull from the PL1. |
|
Trenching equipment for 8.5 kms of post burial work. |
|
Deck installation and hook up equipment. |
| The job was a technical and financial success for both contractor and client. Client references can be provided on request. |
|
|
| |
| |
