The main power of the drilling rig is from 3 sets of CAT3516B 1850KW or 4 sets of CAT3512B 1100KW diesel generator sets. It adopts the advanced digital AC variable frequency technology. By means of the integrated design of electric transmission system PLC, touch screen and drilling instrument parameters of gas, electricity and fluids, the operation of intelligent control by driller is fully realized.
It has front-open mast and double-hoisting substructure. The mast and all devices on the floor can be installed at a lower position. Drawworks is driven by shingle-shaft gear with one-shift stepless speed governor, which makes the mechanical transmission easy and reliable. The main brake is hydraulic disc brake and the auxiliary brake relies on energy consumption of motor. It is equipped with an automatic driller, which makes the operating control system simpler, easier and more convenient and the drilling operation safer and more reliable.
The configuration of drilling rig meets the requirement of explosion-proof, safe drilling operation, convenient installing, disassembling and maintaining of equipment as well as the requirement for installation of top drive. In addition, it can be raised by the power of drawworks.
The drilling rig can be divided into five areas, drilling floor area, pump house area, power/electric control area, mud circulation area, and water tank & fuel tank area.
|Nominal drilling capacity||23, 000 ft (7000m), 4-1/2" DP|
|Max. hook load||1, 000, 000 lbs (4500 KN)|
|Hoisting lines||6x7 clockwise|
|Max. DP weight||584, 050 lbs (2600 KN)|
|Diameter of drilling line||1-1/2" (38 mm)|
|Rated horse power of drawworks||2000 HP (1500 KW)|
|Drawworks hoisting speed||Single, step-less change|
|Opening diameter of rotary table||37-1/2" (952.5 mm)|
|Mud pump capacity x Qty.||1600 HP (1176 KW) x 3|
|Mast valid height & type||158 ft (48m)& K type|
|Drill floor height||34.5 ft (10.5m)|
|Clear height of substructure||29.5 ft (9m)|
|Standpipe manifold||Φ 140 mm x 35 Mpa, Dual standpipe. (5 1/2 x 5, 000 PSI)|
|Air source pressure||0.7~0.9 Mpa (100~130 PSI)|
|Air receiver||(105x2+140) ft3, (3x2+4) m3|
|Environment temperature||-20~+50 Deg. C.|
|Relative humidity||≤ 90%|
|Auto driller VFD motor||37 kw|
|Bit feeding speed||0.3~120 ft/h (0.1~36m/h)|
|Diesel set||CAT3512B or CAT3516B|
|Diesel engine quantity x main power||4x1100KW or 3x1850KW|