CATEGORIZED | News, The Efficient Rig

Zagreb 1 semi to undergo complete overhaul

Posted on 19 July 2011

CROSCO’s Zagreb 1 semi, capable of operating in water depths up to 450 meters, is currently being refurbished. The maintenance program should be completed by October 2011.

CROSCO’s Zagreb 1 semi, capable of operating in water depths up to 450 meters, is currently being refurbished. The maintenance program should be completed by October 2011.

CROSCO Integrated Drilling & Well Services’ semisubmersible Zagreb 1 recently entered the shipyard to undergo maintenance and service that includes the complete overhaul of all drilling equipment, the blowout preventer (BOP) overhead crane and anchor winches. The maintenance and service program is expected to be completed by October this year.

Additionally, Lloyd’s Register is performing the five-year rig survey on Zagreb 1. “Upon completion, Zagreb 1 will be fully certified and refurbished,” CROSCO president Igor Vrban said. “CROSCO is using the current unexpected lull to prepare Zagreb 1 for future drilling projects, which usually entail short deadlines upon contract award.”

The upgrade work, being performed by CROSCO’s maintenance and engineering division at the Brodo Trogir d.d. Shipyard in Trogir, Croatia, involves NDT class inspection of the hull and class inspection of the anchor winches and wires, as well as the ballast tanks and anchors. New high-pressure mud, cement, choke and kill lines will be installed. Additionally, mud pumps and electric motors will be serviced and anti-corrosion protection applied. Recertification of the BOP stack will take place in a Cameron facility.

The Zagreb 1 semisubmersible, constructed in 1977, is capable of working in water depths up to 450 meters (1,476 ft).

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 01 October 2014

    Noble Energy to resume exploration drilling offshore Falkland Islands

    Noble Energy.plans to resume exploration drilling in the Falkland Islands in 2015, following the acquisition and evaluation of an extensive 3D seismic program…

  • 01 October 2014

    Video: Schlumberger mapping-while-drilling service expands view around wellbore

    GeoSphere, Schlumberger’s new reservoir mapping-while-drilling service, optimizes well placement operations and steering capabilities with deep-directional...

  • 30 September 2014

    Statoil, Shell and Sonatrach awarded acreage onshore Algeria

    Statoil and Shell were awarded the Timissit Permit License in the Illizi-Ghadames Basin onshore Algeria. The license is in southeastern Algeria and covers an area of 2,730 sq km...

  • 29 September 2014

    Rosneft discovers oil in Kara Sea

    Rosneft successfully completed the drilling of the Universitetskaya-1 well in the Arctic – the northernmost well in the world, according to the company, and discovered oil at the East-Prinovozemelskiy-1 license area...

  • 26 September 2014

    Statoil and PL713 partners discover gas in Pingvin prospect in Barents Sea

    Statoil has together with PL713 partners made a gas discovery in the Pingvin prospect in the Barents Sea. The discovery is a play opener in an unexplored frontier…

  • Read more news