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Aerial view of the T-57 rig on location surrounded by forest

T-57

Land Rig 1,500 HP

Drilling depth
16,000ft
Drawworks power
1,500HP
Hookload
0.8M lbs
Status
Active

Rig overview

T-57 is a versatile land drilling rig originally built in 1981 and refurbished in 2011, with a drilling depth capability of up to 16,000 ft (4,877 m). The rig is equipped with a Dreco mast and slingshot substructure, a 1,500 HP Bentec drawworks, and a Varco TDS-11SA top drive with a 454-ton capacity, providing reliable drilling performance for medium-depth wells. Powered by four Caterpillar 3512B engines and supported by two 1,600 HP mud pumps, the rig offers efficient operations, while its 10,000 psi BOP system, substantial mud storage capacity, and proven equipment configuration make it a dependable choice for onshore drilling and development projects.

Location
Nigeria
Year built
1981 (Refurbished 2011)
Type
Land rig

T-57 gallery

Aerial view of the T-57 rig on location surrounded by forest(opens full-size image)T-57 substructure and crane on the rig site(opens full-size image)Crew working on the T-57 drill floor and substructure(opens full-size image)

Complete specifications

Technical details and capabilities of T-57.

Basic identification
Year Built1981 (Refurbished 2011)
Drilling Depth Theoretical16,000 ft / 4,877 m
Mast
TypeDreco M 14225-1050
Height142 ft / 43.3 m
Base24 1/3 ft / 7.4 m
N.G.C1,050,000 lbs / 476 t
Hook load787,000 lbs / 357 t
Sub-structure
TypeDreco Slingshot
Height25 ft / 7.6 m
Casing Load750,000 lbs / 340 t
Setback Load355,000 lbs / 161 t
Drawworks
TypeBentec E-1500-DC
Horsepower Rating1,500 HP / 1,100 kW
Max Line Pull83,800 lbs / 38 t
Drilling Line Diameter1 3/8 inches / 35 mm
Crown BlockBentec EB-6032-A
Top drive
TypeVarco TDS-11SA
Capacity1,000,000 lbs / 454 t
Torque37,500 ft-lbs / 50,850 Nm
Rotary table
TypeNational C-275
Table Opening27 1/2 inches / 698.5 mm
Drive group
Engine TypeCaterpillar 3512B
Horsepower Rating4 x 1,476 HP
Generator TypeCaterpillar SR4B
Generator Rating4 x 1,500 kVA
Voltage600/460 V, 60 Hz
SCR SystemBentec SCR
Mud system
Pump TypeNational 12P-160
Horsepower Rating2 x 1,600 HP
Shale Shaker TypeKing Cobra
Shale Shaker3 pcs, single
Standpipe Pressure5,000 psi / 345 bar
Active Mud System1,000 bbl / 160 m³
Reserve Mud System1,600 bbl / 255 m³
BOP equipment
Annular13 5/8 inches x 5,000 psi
Double Ram13 5/8 inches x 10,000 psi
Single Ram13 5/8 inches x 10,000 psi

Other drilling rigs

Rig 727

Land Rig 4,500 HP

Drilling depth
30,000 ft
Drawworks power
4,500 HP
Hookload
1.7 M lbs

T-209

Land Rig 2,000 HP

Drilling depth
20,000 ft
Drawworks power
2,000 HP
Hookload
1.3 M lbs

T-26A

Land Rig 2,000 HP

Drilling depth
20,000 ft
Drawworks power
2,000 HP
Hookload
1.0 M lbs
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