Location Australia

Drawworks rating 1,200 hp

Load rating 320,000 lbf [1,423,431 N]

Skidding capable Yes

Load count 21

Crane required to move No

Rig 188Advanced-technology-design rig

Schlumberger Land Rigs

Mast Hydraulic telescopic singleMake and model Oil Country Engineering; Hanson

Height 90 ft [27 m]

Static hook load 320,000 lbf [1,423,431 N]

Substructure Step-down/elevatedMake and model Oil Country Engineering; Hanson

Floor height 17 ft [5.2 m]

Clear height 13.4 ft [4.1 m]

Rotary load capacity 320,000 lbf [1,423,431 N]

Traveling assembly Integrated split blockTraveling block Tesco split block

Load rating 500,000 lbf [2,224,111 N]

Topdrive Alternating current variable frequency drive (AC/VFD) integrated into mast

Make and model Tesco 250-EMI-400

Load rating 500,000 lbf [2,224,111 N]

Max. drilling torque 24,000 ft.lbf [32,500 N.m]

Breakout torque 32,000 ft.lbf [43,400 N.m]

Rotary table or slip table Hydraulic driveTable opening size 201/2 in [521 mm]

Mud pumps AC/VFDMake and model Two Honghua HHF-1000

Max. input horsepower 1,000 hp

Mud system Three-tank system with integrated mud-gas separatorActive (usable) volume 767 bbl [122 m3]

Number of tanks Three tanks; seven compartments

Shale shaker Two Derrick FLC 504

Power generation Sound attenuated to 85 dB at 3 ft [1 m]Make and model Three Caterpillar C32

Horsepower rating 1,250 hp

Kilowatt rating 910 kW

Well controlAnnular preventer T3 Energy Model 7082

Pressure rating 5,000 psi [34.5 MPa]

Opening size 11 in [280 mm]

Ram preventer T3 Energy double-ram Model 6011i

Pressure rating 5,000 psi [34.5 MPa]

Opening size 11 in [280 mm]

Choke manifold Cameron single gut (two chokes)

Pressure rating 5,000 psi [34.5 MPa]

Size 31/8 × 21/16 in [79 × 53 mm]

Rig 188

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Accumulator Control Technology Inc.

Number of stations 7

Total volume 154 galUS (14 11-galUS bottles)

Pressure rating 3,000 psi [20.7 MPa]

Mud-gas separator Closed bottom (ASME rated)

Vessel diameter 36 in [914 mm]

Fuel tank Transtank dual wallCapacity 188 bbl [30,000 L]

Water tankCapacity 440 bbl [70,000 L]

Additional equipmentSkidding system Hydraulic lift and roll with roller matting

Catwalk Skate-style Power Catwalk (RIII)

Pipe spinner NOV ST-80CL

Stabbing arm Hydraulically actuated

Power slips Hydraulically actuated

Rig layout