Maersk Drilling supports global oil and gas production by providing high-efficiency drilling services to oil companies around the world. The company’s advanced fleet is comprised of harsh environment jack-up rigs, deepwater semi-submersibles, a 3,000 ft semi-submersible, 350 ft & 375 ft jack-up rigs and cantilevered drilling barges.
Jack-up drilling rig – Maersk XL Enhanced
TYPE
Gusto MSC CJ70-X150MD, Ultra harsh environment jack-up drilling rig
BUILT
Keppel FELS, Singapore, 2014/2015
CLASS
DNV
On the XL Enhanced jack-ups, uptime and drilling efficiency are maximised through dual pipe handling. While one string is working in the well bore, a second string of e.g. casing, drill pipe or bottom hole assembly can be assembled/disassembled and stored in the set-back area, ready for subsequent transfer for use in the well bore thus reducing the non-productive time.
The drill floor features Multi Machine Control – a fully remote operated pipe handling system allowing all standard operations such as stand building and tripping to be conducted without personnel on the drill floor, thus ensuring a high level of consistency across crews and an improved efficiency.
With a leg length of 206.8 m (678 ft), the rigs are designed for year-round operation in the North Sea, in water depths up to 150 m (492 ft).
Main advantages
1.150 m (492 ft) water depth capability year-round in the North Sea
2. Cantilever reach from stern to well centre 33.5 m (110 ft) and from centre line to each side more than 11 m (36.1 ft.)
3. Combined cantilever load up to 1,400 t
4.Dual pipe handling system with off line stand building of drill pipe, casing or bottom hole assembly while one string is working at well centre
5.2,500 m2deck space
6. Up to 13,000 t variable load
7. Semi automatic tubular handling system
8. Drillers cabin with 3 ea NOV cyber chairs
9. Fully equipped for HP/HT
10. 18-3/4” 15,000 psi BOP system
11.Drilling and work over through surface BOP, prepared for upgrade to subsea BOP
12. Enhanced facilities for handling of subsea equipment
13.Automated solids control system with 5 triple deck shakers in separate rooms
14.Automated and dust free mud mixing system
15. Green rig philosophy to minimize CO2and NOx emissions
16. Superior working and living conditions for the crew with 150 single bed cabins.
17. 2 ea 15 t cargo lifts from main deck to lower and tween deck and one 8.5 t forklift to minimise crane lift
18.3 ea deck cranes 100/20 t
19.Improved handling facilities on cantilever pipe deck and rig floor for more efficient changeover of equipment
Key features
DRAWWORKS
NOV SSGD, 5750 HP with five AC motors.
TRAVELLING EQUIPMENT
NOV traveling block with six 72” sheaves, Grooved for 2”. Capacity 1,100 t.
TOP DRIVE
NOV HPS-03 with pipe handler and retract system. 950 t lifting capacity. Powered by two air cooled AC motors. Max continuous torque 90,800 ft/lbs at 130 rpm and max intermediate torque 125,000 ft/lbs.
DERRICK CAPACITY
The derrick allows for drill pipe to be racked in quads or range 3 in triples – and casing in stands of triples.
PIPE HANDLING SYSTEM
Dual NOV HR-IV pipe rackers with automatic fingerboards. Dual NOV ARN200 iron roughnecks. NOV CWS-P20-50-HS Cat walk shuttle. NOV gantry type pipe handling machine. Semi automatic operation (NOV MMC) for off line stand building and tripping. NOV anti collision system and Interlock management system.
ROTARY TABLE
NOV VBJ RST 49” Hydraulic Operated Rotary Support Table. Torque 45,000 ft/lb at 5 rpm.
MUD PUMPS
Four NOV 14-P-220, 9” bore x 14” stroke, single acting triplex mud pump. Rated for 7,500 psi.
CEMENTING EQUIPMENT
Schlumberger 2 x cps 763, 15,000 psi / Halliburton 2 x HT 400 pumps, 15,000 psi. Both units are arranged for remote controlled cementing operations.
WELL CONTROL EQUIPMENT
NOV 18” – 15,000 psi consisting of one annular & two double ram preventers. H4 connector. 500 psi Diverter. The BOP is prepared for utilization in subsea mode.
MUD RETURN SYSTEM
Five NOV VSM Multi-Sizer Shale Shakers including fully automatic shaker control system. Two each MI Swaco CD-1400 degassers. NOV cuttings conveyors and free flow air conveyors for cuttings transfer. NOV slurrification skid with a capacity of 10 m3/h of cuttings.
MUD MIXING SYSTEM
NOV Mud mixing skid. One each Procut sack cutter incl. lifting table with a capacity of up to 360 sacks/hour. Two each surge tanks incl. cell feeders with a capacity of 3.5 m3/h. One each liquid additive skid with a capacity of 3 m3/h. One each big bag unit. Large sack store with large storage capacities of sacks. Mud pits designed to improve cleaning.
DRIVE PIPE SUPPORT DECK
Hinged deck, which can be hydraulically skidded from side to side. The deck can support loads up to 150 t. Size of deck is 6.7 m x 11 m. Prepared for handling and deploying sub sea equipment.
TENSIONER SYSTEM
Conductor tensioning system consisting of four 100 t hydraulic cylinders vertical and four 25 t hydraulic cylinders horizontal.
DRILLING INSTRUMENTATION
NOV SDI system.
POWER SUPPLY
Four each 2,846 kW diesel engines W?rtsila 9L26.
DECK CRANES
NOV OC3500LCE lattice boom cranes. 52.2 m hoisting radius. 20 t capacity whip hoist and a 100 t capacity main hoist. Max 60 t capacity to boat.
HELICOPTER DECK
Suitable for EH101 helicopter with a max. weight of 15.4 t.
SAFETY EQUIPMENT
Life saving and fire fighting equipment as per rules and regulations. Enhanced safety systems consisting of fixed fire fighting system installed in accommodation, machinery spaces and switchboard rooms for rapid activation in case of a fire.
ACCOMMODATION
Accommodation is located in two blocks shaped as a “V”, wrapped around the forward leg. Port block is a quiet area with cabins – starboard block holds all offices, recreation rooms and service facilities. 150 people in single bed cabins.
About Maersk Drilling
Maersk Drilling is a leader in the North Sea, where we operate the world’s largest and most advanced harsh environment jack-up rigs at water depths up to 150 m. Highly automated, these provide safe working conditions for our crew and increased drilling efficiency for our customers. We have operated jack-up rigs for close to 40 years, including 375 & 350 ft jack-ups in areas such as Southeast Asia, Australia, the Mediterranean, the Middle East and the Gulf of Mexico.
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