BAHRAIN -- ASRY Offshore Services (AOS) has completed rig and liftboat repair and maintenance programs at its yard in Bahrain.
Ensco commissioned AOS for programs on two drilling jackups, the 1980-built Ensco 97 and the 1982-built Ensco 88, both Marathon Le Tourneau 82-SD-C designs.
The workscope for the Ensco 97 included:
- Renewal of around 30 metric tons (33 tons) of steel in various locations around the hull, and also of spud can and leg anodes
- Ultra- high-pressure blasting of leg nodes in the rig’s splash zone area, supplemented by magnetic particle inspection of welds and an ultrasonic thickness survey of the chords/horizontal/diagonal/internal lattice. This work extended to repairs along the entire length of the three leg
- Load testing on all three Marathon Le Tourneau cranes
- Pumping out and cleaning of fuel tanks for survey purposes
- Dynamic load testing of lifeboat and lift raft winches and the davit structure.
Earlier this year, AOS completed its first major contract for Hercules Offshore, which involved upgrading and repair work on the jackup Hercules 170. Recently Hercules also requested maintenance work on its Amberjackliftboat. Here the program, undertaken in April, included:
- Installation of a new engine room CO2 system
- Modifications and repairs to the vessel’s main deck, hull fender and engine room ventilator
- Repairs to the legs’ pinion gears, planetary gearbox and end bearings
- Renovation of the accommodation area
- Installation of a new anchor winch
- Load testing of a 70-ft (21-m) telescopic crane and an 80-ft (24-m) fixed crane.
AOS currently has around 10,000 sq m available at its shipyard for fabrication work. A new 200,000 sq m (77,220 sq mi) fabrication area and a 1.2-km (0.75-mi) long quay are under construction and should be operational by 2011.
AOS reconditions Ensco rigs
ASRY Offshore Services (AOS) has completed rig and liftboat repair and maintenance programs at its yard in Bahrain.