Nabors’ SunDowner is capable of being off-loaded and assembled on an offshore platform in a single day…from sunup to sundown. The short rig-up time results in significant mobilization cost savings.
Rig components and packaged modules are sized to fit the available deck area of a standard supply boat. The compact arrangement, loaded aboard the vessel in reverse order of assembly, makes maximum use of deck space and facilitates an orderly and efficient rig-up. All rig components are packaged in modules not to exceed 17 kips allowing for hoisting by the platform crane.
The rig has as a box-on-box substructure and is SCR electrically powered. Despite the compact arrangement of the SunDowner rigs, floor space is spacious enough to provide a safe, efficient workplace for rig personnel. The substructure and drill floor are designed to drill 22 wells on one location without moving the backyard components.
The SunDowner has three Caterpillar 3512C engines rated at 1,476 horsepower, each driving one Kato 1365 KW generator, for a total of 4,428 horsepower. The rig has a Loadmaster Bootstrap style 142 ft telescoping mast with a maximum rated static hook load of 600,000 lbs on 10 lines. The mast design allows for the V-Door to be located on two sides of the Rig floor which provides additional flexibility to configure the rig for different well site locations.
Drill Smarter with Nabors
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