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Oil & Gas

Marine Drilling Risers: Inspections, Repairs & Maintenance

Marine Drilling Risers: Inspections, Repairs & Maintenance

BHGE VETCOGRAY and NOV OEM Approved Vendor with the capability to offer the Full 5 Year and 10 Year Recertification of Marine Drilling Risers including Welding Repairs in Cyprus.

Multimarine’s Yard in Limassol Port is ideally located to act as a regional marine risers’ recertification hub. Multimarine’s specialty and excellent reputation in this service area attracted several OEMs and Drilling Contractors operating in the Eastern Mediterranean (Egypt, Israel, Cyprus) and the Black Sea.

Cyprus has proven to be an ideal location for riser recertification which can cover all potential projects in the Middle East and North Africa Regions.

Multimarine developed in-house procedures and processes and invested in the latest welding and inspection technologies. As a result, Multimarine is now an OEM Approved Vendor of NOV and BHGE (VETCOGRAY).

Especially with GE Oil & Gas, Multimarine has completed the qualification for the Full Overhaul and Repairs (O&R) of GE VETCOGRAY HMF-H 90ft Riser Joints.

Our drilling clients like ENSCO, DIAMOND and SAIPEM and the OEMs have found our facilities in Limassol Port extremely convenient for their riser repair and recertification projects in the Mediterranean Region.

Our welding procedures cover all possible material combinations for riser repairs (API 5L X52, X80, AISI 4130, AISI 8630, SS316L, Monel 400 and Inconel 718). Our welding methods include SMAW, GTAW and SAW. We also offer full blasting and painting, heat treatment and pressure testing to 22.5k psi. Our inspection capabilities include Visual (VT), Magnetic Particle (MT), Penetrant (PT), Ultrasonic (UTW and UT), Phased Array (PA), Radiography (RT), Dimensional and Hardness Testing.

We have developed in-house handling, inspection, welding, repair and coating procedures that satisfy both the OEMs and the Drilling Contractors which cover:

  • Full Marine Drilling Riser Offloading, Loading and Transportation Services
  • Complete Disassembly and Assembly
  • NDE and Dimensional Inspections
  • On-Site Machining Services
  • Full Welding Repairs
  • Positive Material Identification (PMI)
  • Pre and Post Weld Heat Treatment
  • Full Blasting and Coating Services
  • Pressure Testing up to 22500psi

Our success stories include the Full 5 Year Recertification of 118 x 75ft NOV Shaffer Riser and 2 x Telescopic Joints, the Full 10 Year Recertification of 90 x HMF-H 90ft BHGE VETCOGRAY Riser Joints and the On-Site Machining Services for 80 CAMERON Riser Joints.