WORKOVER RIG
WORKOVER RIG
The workover rig is designed and manufactured in accordance with standards such as API Spec Q1, 4F, 7K, 8C and RP500 etc.
The workover rig mainly consists the following equipments: power system, transmission system, lifting system, rotating system, control system, mast and drilling floor (substructure), auxiliary equipment, etc.
The power system, transmission system, control system, traveling system, and diesel engine, gearbox, drawworks, mast and hydraulic winch are all mounted on the carrier, which saves space and makes it fast to move the rig.
The carrier vehicle adopts self-propelled chassis. The chassis and the drilling equipments are driven by mounted engine. It has reasonable chassis load distribution, excellent off-road ability and mobility.
Caterpillar engine and Allison hydraulic transmission. The Allison hydraulic transmission driven by one or two Caterpillar engines provides reliable transmission and has longer service life.
Single or Double-drum drawworks. The main brake system of the drawworks is either band type or hydraulic disc type. The auxiliary brake is pneumatic water-cooled disc type or hydromatic type.
| Model | XJ250 | XJ350 | XJ450 | XJ550 | XJ650 | XJ750 |
| Service Depth (2.7/8" EU Tbg), m (ft) |
3,200 (10,500) | 4,000 (13,000) | 5,500 (18,000) | 7,000 (23,000) | 8,500 (28,000) | N/A |
| Workover Depth (2.7/8" DP), m (ft) |
2,600 (8,530) | 3,200 (10,500) | 4,500 (15,000) | 5,800 (19,000) | 7,000 (23,000) | 8,000 (26,000) |
| Workover Depth (3.1/2" DP), m (ft) |
N/A | 2,500 (8,200) | 3500 (11,500) | 4,500 (15,000) | 5,500 (18,000) | 6,500 (21,000) |
| Nominal Hook Load, kN(lbs) | 400 (90,000) | 600 (135,000) | 800 (180,000) | 1,000 (220,000) | 1,200 (270,000) | 1,500 (330,000) |
| Max. Static Hook Load, kN (lbs) | 675 (150,000) | 900 (200,000) | 1,125 (250,000) | 1,350 (300,000) | 1,580 (350,000) | 1,800 (400,000) |
| Engine | CAT C9 | CAT C11 | CAT C13 | CAT C15 | CAT C18 | 2xCAT C15 |
| Transmission | Allison 4700OFS | Allison S5610HR | Allison S5610HR | Allison S5610HR | Allison S6610HR | 2x Allison S5610HR |
| Carrier Drive Type | 6x4 | 10x8 | 10x8 | 10x8 | 12x8 | 14x8 |
| Rated Power, HP (kW) | 325 (242) | 385 (287) | 475 (354) | 540 (402) | 630 (470) | 2x540 (402) |
| Line Strung | 4x3 | 4x3 | 5x4 | 5x4 | 5x4 | 6x5 |
| Height of Mast, m(ft) | 17(56) | 29(95) | 31.7 (104) | 33(108) | 35(115) | 38(124) |
| Drilling Line, mm (in) | 22(7/8) | 26(1) | 26 (1) | 26(1) | 29(1.1/8) | 32(1.1/4) |
| Height of Substructure, m(ft) | N/A | N/A | N/A | 4.5(14.8) | 4.5(14.8) | 6(19.7) |
