Mobile drilling rig ARS-250 is designed to perform all types of work and technological operations when drilling oil and gas wells up to 4200 m deep in macroclimatic areas with a moderate climate (at temperatures from -45°C to + 40° C) when developing deposits with a hydrogen sulfide content of less than 6%.
Technical characteristics
Сharacteristics |
ARS-250 |
Type of drilling rig |
Mobile drilling rig of a block-modular type. |
Mechanisms drive |
Universal (possibility to work from the grid or from the DES) electric drive of main mechanisms with frequency regulation and program control, motors of main drives of alternating current |
Hook load: |
|
- the maximum permissible |
250 metric tons |
- test |
312,5 metric tons |
Drawworks: |
With a gear transmission, it is equipped with a main electric motor of 1200 kW, operating in the mode of lifting, lowering, braking and regulating the bit feed, and an auxiliary electric motor of 45 kW, operating in the mode of emergency drive. The gin is equipped with a drum parking disc brake |
- power |
1200 kW |
- traction effort on the second layer of winding |
245.3 kN (25 t) |
- range of lifting speeds of the casing block |
0.... 1.5 m/s |
- bit auto-feed speed |
0-200 m/h |
- maximum load on the hook, when working with the auxiliary drive |
145 t |
Mast: |
Two-section, telescopic, inclined with an open front face |
- height from ground level to crown block frame |
40 m |
- extension of the upper section |
hydraulic cylinder |
- the number of mounting levels for the derrickman balcony |
4 |
- height from the floor of the derrick support to the level of mounting the derrickman balcony |
16.5; 17.7; 18, 22.5 m |
- racking capacity |
3700 m of pipes Ø127 mm |
Tackle system: |
With a casing line bypass device |
- mountings |
5 x 6 |
- diameter of the casing line |
32 mm |
Auxiliary hydraulic drawworks: |
|
- quantity |
2 |
- permissible load on the hook |
49 kN (5 t) |
- rope diameter |
16.5 mm |
Hydraulic spreader: |
|
quantity |
2 |
- rod stroke |
900 mm |
- maximum tractive effort |
54 kN (5.5 tf) |
Manifold (standpipe with drilling hose) |
With quick-release connections |
- cross-section diameter |
102 mm |
- fluid pressure |
35 MPa (350 kg / cm2) |
Derrick support: |
Parallelogram type, with hydraulic lifting system of the working platform, with heated racking. |
- carrying capacity of the support beam |
4061 kN (414 t) |
- racking carrying capacity |
2453 kN (250 t) |
1609 kN (164 t) |
|
- height from the ground to the floor of the derrick support |
6,85 m |
- height from the ground to the bottom of the support beam |
5,8 m |
Rotary table |
with an adjustable drive, based on an asynchronous motor with frequency speed control. |
- permissible static load on the table |
500 t |
- diameter of the through hole of the rotary table |
700 mm |
Top drive system |
|
- actuator |
Electric, frequency-controlled |
- carrying capacity |
2450 kN (250 t) |
- rotation speed of the swivel shaft |
0...200 rpm |
- working torque moment during drilling (n = 95 rpm) |
42 kN·m |
Mud pump |
two drilling three-piston pumps 12T1600 |
- power |
1,193 kW (1,600 hp) |
- maximum supply of one mud pump |
3,127 l/min (826 gallons/min) with 7.1/2" piston at 120 stroke/min |
- maximum pressure |
345 bar (5000 lb/in²) with piston |
Drilling mud cleaning system |
Four-stage |
- net volume |
250 3 |
251 |