Project Highlights

MV Ocean Constructor - Ready for Service

Stabbert Maritime has completed the refurbishment of its newest vessel, the Multi-purpose Construction and Subsea Vessel Ocean Constructor, at the Gulf Copper Galveston shipyard. This is the second major refit of a Stabbert vessel performed at Gulf Copper. Work consisted of an accommodation upgrade, steel and piping renewals, mechanical overhaul of machinery, and coating of hull and superstructure. Numerous vessel components were renewed during the shipyard period.

While at Gulf Copper, the Ocean Constructor was drydocked and underwent a 5-Year Special Periodical Survey for Class Certification. The DP2 vessel, 126 meters in length, is equipped with accommodations for 200 people, a 300 ton pedestal crane, 25 ton auxiliary crane and dual ROV’s. Upon completion of the refurbishment, the Ocean Constructor is well suited for it’s mission of supporting offshore construction, cable lay, and subsea work.

Stabbert Maritime’s group of companies delivers a wide-range of innovative solutions and support services to offshore, science, subsea energy, and ship repair clients. The Ocean Services fleet serves science and research markets. Ocean Sub Sea Services (OS/3) serves the offshore oil and gas industry. SYS Ship Repair provides shipyard and repair services throughout North America. Stabbert clients rely on them to deliver timely solutions to complex projects in the most cost effective way, from mission design to refit and mobilizations to general vessel operation and mission completion. The company has experience operating in all of the world’s oceans, and currently is active in Mexico, Brazil and throughout North America.

Founded in 1948, Gulf Copper & Manufacturing Corporation is an employee-owned company that repairs and refurbishes marine vessels and offshore rigs and fabricates specialty components for the oil and gas market. The company operates strategically located shipyards, drydocks and fabrication facilities along the U.S. Gulf Coast. Gulf Copper serves the marine transportation, offshore construction and offshore drilling markets in addition to various United States government agencies.



Seadrill West Vela 2nd HPU Installation
GC Energy Services group (GCES) was contracted by Seadrill to perform the installation of the West Vela second BOP HPU

  • The Project was performed in two phases
  • Phase I involved cutting two access openings in HPU room to rig in the High Pressure Unit and the Accumulator bottles
  • These access openings were then reinstalled by the GCES Team
  • Phase II consisted of installing stainless steel piping rated for 6000 psi using a tig welding method and stainless steel tubing. GCES also performed the internal passivation of the stainless piping for further corrosive protection of the system
  • All work was performed safely and with good planning, resulting in on budget installation

Transocean Polar Pioneer Project Completed by GC Energy Services

  • The scope included the removal of six (6) existing Panama chocks on the pontoons and installation of six (6) new Panama chocks which were fabricated by Gulf Copper and Manufacturing in their Port Arthur, Texas facility
  • Gulf Copper also performed the removal of 84 sea fasteners which had been welded to the underneath bottom plating of the pontoons for the heavy lift transit from SE Asia to Washington State
  • The work was performed in the ports of Port Angeles and Seattle, Washington. A smaller team remained onboard to perform various tasks in preparation for the upcoming drilling season in the Chukchi Sea
  • The Transocean Project Manager commented: “The team performed exceptionally well, the management responded promptly to our changing requirements. This was one of the best crews I have ever worked with.  From the design, fabrication, mobilization and demobilization, executions were above expectations.  Gulf Copper will be my contractor of choice in the future.”
  • The GC Energy Services team worked closely together with Transocean and Shell on a high focus job with the embedded safety culture and professionalism that has become expected in the industry

Tendon Hang-off Platform, structural mods, project staging, installation and demobilization

  • GC was tasked with fabricating a tendon hang-off porch for a major TLP installation contractor
  • In addition there were TBM support frames and other ancillary installation aids requirements
  • The project had a short delivery with vessel installation structural support mod requirements
  • GC met the delivery requirements and sent riding crews to modify the deck supports at sea
  • The GC facility was used to stage the entire project in preparation for the vessel’s arrival
  • Upon arrival of the vessel, the outfitting of all components was finished ahead of schedule
  • After installation in the GOM, GC provided demobilization and cleaning of the vessel

Launch Barge Beam Fabrication and Outfitting

  • A GC Customer was awarded a contract to launch jackets in Mexico and required barge mods
  • Gulf Copper built launch beams and hinge beams meeting very stringent delivery requirements
  • GC Installation crew was dispatched to Mexico, supervised and installed the Launch Barge Beam Fabrication and Outfitting onto the launch barge


Fabrication of Large CALM Buoys

  • Five 12 Meter diameter CALM Buoys were awarded to GC for delivery to Mexico
  • GC fabricated the CALM Buoys meeting our customer’s tight schedule and quality requirements
  • The buoys were tested and staged alongside the GC facility’s pier for load out
  • Buoys were loaded onto the customer furnished heavy lift vessel for delivery to Mexico