Purpose:
Repair of oil & gas wells.
Operations performed:
- assembly and disassembly of control head;
- round trip including those with sucker rods and tubing;
- mechanized spinning-up and uncoupling of pump-compressor pipes column;
- accident elimination.
Design features:
- single drum winch with one single-disc pneumatic friction clutch;
- extension of the derrick upper section is performed by the hydraulic winch from the remote control console;
- device for fixing hook block and protection of the derrick from damage when moving the rig;
- hydraulic jacks for leveling the rig, single-action (URAL) or double-action (KRaZ).
Options – supplementary equipment supplied on demand in complete set with the lifting rig:
- wrench APR-2GP;
- auxiliary drawworks;
- GPS terminal for monitoring;
- wellhead derrick;
- general utility power wrench;
- circular sucker-rod tongs;
- “Granit” wrench;
- wrench KPR-12;
- general machine wrench;
- hydraulic breaker;
- wrenches KGTU for pipes with D – 60-89;
- pipe wrenches KT.000, KT.000-01, KTs01;
- sucker-rod tongs;
- spider;
- receiving bridge;
- circulation tank;
- tool box;
- swivel VP60;
- support for headlighter installation;
- auto hydraulic jack (10-30 t);
- strap set (50t);
- rod hook;
- weight indicator DEL-140 or IVA-50;
- pipe store;
- special recoil device;
- plug-in extra wheel fastener;
- wind gauge.
Technical specifications
| Lifting rig | |
| Rated load on hook, kN (tf) | 392 (40) |
| Maximum allowed load on hook, kN (tf) | 490,5 (50) |
|
Assembly-transportation base of the rig: -automobile chassis |
URAL-4320 KrAZ-65053 |
| Machinery drive | From chassis engine |
| Winch: | Single drum with disc pneumatic clutch |
| - number of gears | 3; reverse - 1 |
| - maximum traction force, kN (tf) | 83,4 (8,5) |
| - hook block lifting speed, m/s | 0,28 ...1,18 |
| - winch brake | Double-belt-spot-type with pedal pneumatic and manual mechanical control |
| Derrick: | Dual-section, telescopic with open front face |
| - upper section fixing mechanism | Mechanical with pneumatic drive and au-tomatic opening on section moving-up |
| - signaling of derrick upper section moving-up | Visual (signal lamp on remote control con-sole) and electric (sound signal) |
| - height from earth level to crown block axis, m | 18 |
| - derrick inclination angle, deg. | 4 ° 12' |
| - distance from the plane of trailing feet to hole axis, mm | 1100 |
| - height of hook block lift, m | 14 |
| Diameter of derrick guy lines going to chassis and anchors, mm | 14 |
| Pulley-block system: | |
| - tool set | 3 х 4 |
| - drilling line diameter, mm | 22 |
| - tackle multiplicity | 6 |
| Hook block: | Single axle with triplex hook |
| Drilling line bypass drum: | |
| - rope capacity, m | 85 |
| Hydraulic system: | |
| - number of pumps NSh-100G-4 | 1 |
| - working pressure range, (kgf/cm2) | 16-21 |
| - pump capacity, l/min | 188 |
| Leveling jacks : | |
| - front mechanical screw-type, pcs. | 2 |
| - rear hydraulic jacks, pcs. | 2 |
| Pneumatic system: | Power supply from chassis pneumatic system |
| - working pressure, (kgf/cm2) | 7 |
| Illumination of derrick, rig equipment and working places: | Explosion-proof construction, from on-board net 24V or from external source, voltage 220 V, 50 Hz |
| Rig overall dimensions in transit condition, mm | URAL-4320 | KrAZ-65053 |
| -length | 10600 | 10850 |
| -width | 2760 | 2760 |
| -height | 4260 | 4350 |
| Weight in transit condition, kg | 21100 | 22260 |
| Full load: | ||
| - on front axle, kg | 5400 | 5700 |
| - on rear bogie axle, kg | 15700 | 16550 |
| Climatic characteristics: | ||
| - operating temperature conditions | from -40 ° С up to +40 ° С | |