InterMoor’s Top 10 Projects of 2015

1) Atwood Eagle Mooring System Change Out

InterMoor Pte, based in Singapore, completed the change out of the Atwood Eagle mooring system. The mobilisation took place in Singapore and the job was executed in Dampier, Australia on behalf of Atwood Oceanics.

InterMoor Pte procured 8 new chains for the rig and transported them from the chain manufacturer in China to Singapore to prepare for mobilization and installation onto the drilling unit. The 8 new wires were free issued by Atwood and these were also prepared by InterMoor and mobilized form Singapore. InterMoor Pte hired two vessels, the Pacific Dispatch and the Pacific Discovery to mobilise, transport and then install all of the mooring equipment onto the Atwood Eagle at anchorage in Australia.

The work was carried out on time, within budget and with zero LTIs.

Atwood Eagle Mooring System Change Out

2) Mooring of a DP type platform in the Guanabara Bay, Brazil

InterMoor do Brasil provided the mooring system design for the DP platform, completing the project in two phases.

The first phase was completed with the provision of analysis and engineering studies to decide the most appropriate method of conventional mooring pattern given the capabilities of the available components of the platform.

The second phase was completed with the delivery of operations procedures and renting of additional mooring materials, such as anchors, chains segments, connectors elements and buoys.

Also for this second phase, InterMoor do Brasil provided qualified personnel to ensure the efficient and cost-effective execution of the operation. The project was performed as planned and with zero incidents.

Mooring of a DP type platform in the Guanabara Bay, Brazil

3) Engineering and Fabrication of MWCC Umbilical Turning Point Structure

A group of major offshore operators (Chevron, ConocoPhillips, ExxonMobil and Shell) joined forces in a not-for-profit organization, the Marine Well Containment Company (MWCC) to develop, maintain and operate a containment system named the Marine Well Containment System (MWCS). The MWCS will allow for rapid deployment into deepwater GOM in the case of a subsea well blowout. The primary objective of the system is to fully contain the oil with no flow to the sea.

InterMoor provided the engineering design and fabrication of the Umbilical Turning Point Structure.
Engineering and Fabrication of MWCC Umbilical Turning Point Structure

4) Boomvang Spar Riser Disconnect

InterMoor was part of a team that disconnected and laid down 3 risers and 1 umbilical off the Boomvang spar. The Boomvang spar continues to produce today after achieving first production in 2002 in East Breaks Block 643 in the Gulf of Mexico.

An InterMoor crew of about a dozen, working together with a separate team on board the spar, successfully completed the scope of work from an anchor-handling vessel in 3,472 ft. of water.

Boomvang Spar Riser Disconnect

5) Chain maintenance on Baobab Ivoirien FPSO

InterMoor successfully completed the maintenance for one mooring line of the FPSO Baobab Ivoirien MV10 at the request of Mitsui Ocean Development & Engineering Co., Ltd (MODEC). The FPSO is currently located in the Baobab Oil Field Block CI-40, 25km (15 miles) of the coast of Côte d’Ivoire, in approximately 970m of water.

InterMoor provided project management, engineering, mobilization of equipment, vessels and personnel, and offshore labor. The work was completed on time and without incident.

Chain maintenance on Baobab Ivoirien FPSO

6) CALM buoy disconnect in West Africa

InterMoor completed engineering procedures, project management, and offshore work to disconnect two risers from a CALM buoy. The CALM buoy risers were successfully disconnected, plugged and laid down on the seabed using an Anchor Handling Vessel.

As the original pull-in method for the risers was not feasible, given the age of the asset, InterMoor developed an alternative procedure to disconnect and laydown the risers, involving the use of subsea clamps and Chinese fingers to guide the riser end to the deck to install the plugs.
*The job was successfully completely in 384 m (1,260 ft.) of water.

CALM buoy disconnect in West Africa

7) Mooring Support in Alaska

InterMoor provided support and offshore personnel for the pre-set installation of a mooring system for a heavy lift vessel (the Svenja) and the moving of a pipe-lay barge (the Ninilchik) along a 16-nautical-mile pipe-lay route in Alaska.

Mooring Support in Alaska

8) North Sea Single Point Mooring (SPM) Maintenance

InterMoor UK completed an SPM mooring system review and developed an optimized shuttle tanker connection arrangement for a major oil & gas Exploration and Production company in the UKCS.

As part of the project, InterMoor UK designed and manufactured fully certified, long term connection H links (an InterM product). The bespoke design ensures efficient transfer and connection of the hawser by the shuttle tankers whilst providing improved system integrity.

In addition to design and supply of the H links, InterMoor UK provided personnel to assist with the installation of the optimized design components.

North Sea Single Point Mooring (SPM) Maintenance

9) Pile Fabrication for the Julia Project

InterMoor’s Morgan City facility manufactured four manifold piles for McDermott for the ExxonMobil’s Julia project.

Two piles are 45ft. long, one is 65ft. long and the longest one is 103ft.

The piles are 20ft. diameter, which is the largest rolled by InterMoor to date and weigh from 66 to 277 Tons.

The deepwater Julia oil field is located 265 mi (426 km) southwest of New Orleans in the GoM Walker Ridge area in water depths of approximately 7,000 ft (2,134 m).

Pile Fabrication for the Julia Project

10) Heidelberg Piles and Deepwater Hook-up

The piles for the Heidelberg project shipped out of our facility in Morgan City, La. in early 2015. These were 9 piles for flow line and riser holdback. They each weighed about 63 tonnes and measured 65’ long and 12’-9” diameter.

In the summer, InterMoor Inc. provided Anadarko Petroleum Corporation with rapid hook-up services for their Heidelberg truss spar in the deepwater Gulf of Mexico after stepping in at short notice for another contractor.

The company hooked up the 80,000 bbl/d spar to three mooring lines to make sure it was storm safe. The Heidelberg field development is located in Green Canyon 859 of the Gulf of Mexico.

Heidelberg Piles and Deepwater Hook-up


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