Norwegian technology profiles
Dreggen Crane
Dreggen Crane supplies cranes and lifting equipment to the offshore industry worldwide. The company, founded in 1987, has developed an extensive range of explosion-proof cranes. Currently it employs a staff of 35, with annual sales of around $10 million. Dreggen specializes in cranes for handling of christmas trees, BOPs, risers, and pipes. The cranes are used on drillships, FPSOs, and semisubmersibles, in addition to petrochemical installations onshore. References include Thunder Horse, Khazar, West Navion, Pride Angola & Africa, Valhall, Mærsk Xl1 and XL2.
Epcon Offshore
Epcon Offshore has developed its own treatment technology for removing hydrocarbons, hydrophobic substances, and particles from water. The technology has been developed and tested with oil companies in the North Sea and is considered proven in treating produced water. For the oil companies, water handling costs are increasing, and the Epcon systems provide the potential both to increase oil production and meet the zero discharge goal with regard to the maximum allowable hydrocarbon concentration in discharged water.
Frontier Drilling
Frontier Drilling ASA was founded on Feb. 6, 1997. It started the operation of conventional drillships in 2000 and has extended its business segment though the purchase of the dynamically positioned FPSO Seillean, which had (and still has) a contract with Petrobras in Brazil. Frontier runs a lean organization with decentralized operations in Singapore and Vitoria, Brazil. It claims to be the only company with experience of DP FPSO operations in Brazil or anywhere else.
Karmoy Winch
Karmoy Winch produces deck equipment for ships and rigs with production plant. It also provides complete deck machinery packages for supply vessels and tugs, comprising tugwinches, tuggerwinches, anchor winches, capstans, power packs, deck cranes, remote control panels, and the Karm Fork, and Towing pin systems. The company, based in Kopervik, southern Norway, employs 85 personnel and has its own test area. Subsidiary Karmoy Hire hires out winches with pull capacity of up to 400 tons, winches for chains up to 150 mm, and blocks, sheaves and power packs.
Karmsund Maritime
Kopervik-based Karmsund Maritime Offshore Supply has devised a new leak test method for flanges with ring joints. This determines whether tightness has been achieved on all sealing surfaces before the flange and pipe are subjected to internal pressure, as well as monitoring the flange connections for future leakage. The technique is based on pressurizing the annular space above and below the seal ring using test gas. If no pressure loss is recorded, the seal is deemed to be tight. The test gas is applied using simple, portable equipment, designed for easy handling to enable flanges to be tested on a one-off basis without having to pressurize entire systems.
Rapp Bomek
Rapp Bomek manufactures and designs advanced fireproof and explosion-proof doors. Its products are tested to all relevant specifications and are type-approved by DNV, Lloyds, and USCG for fixed and floating platforms. The doors are manufactured under a strict ISO 9001 QA system. Deliveries issued to North Sea platforms continue to perform after more than 24 years in service. Recent references include the Grane, Kvitebjörn, and Valhall platforms in the Norwegian sector, South Pars in Iran, Devils Tower, Medusa, and Horn Mountain in the Gulf of Mexico, and Bonga/Asabo in Nigeria.
The Kvitebjörn platform in the North Sea is Statoil's newest production installation. Picture courtesy Statoil.