XJ550 workover rig is mainly used for overhaul of medium and shallow wells, and its main working system is lifting operation system and rotating operation system. The maximum static hook load is 1350kN, and the rig floor and related accessories can be equipped for overhaul and sidetracking operations.

1. The 33m double-section hydraulic lifting and telescopic mast is adopted for the mast;

2. Chassis 10 × 8 Good off-road performance;

3. The auxiliary brake of drawworks is water brake, which can be pneumatic caliper brake or air controlled water-cooled disc brake;

4. Optional drill floor and simple workbench;

5. The turntable transmission device with five positive and five reverse anti-rotation is adopted;

Technical parameters of XJ550 workover rig:

		XJ250	XJ350	XJ450	XJ550	XJ650	XJ750	XJ850
Item	Name	Parameters	Parameters	Parameters	Parameters	Parameters	Parameters	Parameters
1	Installation  power	320HP(239KW)	385HP(287KW)	430HP(239KW)	540HP(239KW)	630HP(239KW)	540HP*2	630HP*2
2	Nominal hook load	400KN(40tf)	600KN(60tf)	800KN(80tf)	1000KN(100tf)	1200KN(120tf)	1500KN(150tf)	1800KN(180tf)
3	Max.static hook load	675KN(67.5ft)	900KN(90ft)	1125KN(112.5ft)	1350KN(135ft)	1580KN(158ft)	1800KN(180ft)	2250KN(225ft)
4	Transmission type	Hydraulic+Mechanical	Hydraulic+Mechanical	Hydraulic+Mechanical	Hydraulic+Mechanical	Hydraulic+Mechanical	Hydraulic+Mechanical	Hydraulic+Mechanical
5	Axle drive	6*6	10*4 or 10*8	10*8	10*8	12*8	14*8	14*10
6	Workover depth （2 7/8 EUE Tubing）	3200m	4000m	5500m	7000m	8000m	8000m	9000m
7	Heavy repair depth （2 7/8 EUE Tubing）	2000m	4000m	5500m	7000m	5300m	6500m	7500m
8	Mast height	17m	29m or 31m	31.7m	33m	35m	38m	35m
9	Diameter of wire rope	Φ22mm	Φ26mm	Φ26mm	Φ26mm	Φ29mm	Φ29mm	Φ29mm
10	Hydraulic system	14MPa	14MPa	14MPa	14MPa	14MPa	14MPa	14MPa
11	Pneumatic system	0.8MPa	0.8MPa	0.8MPa	0.8MPa	0.8MPa	0.8MPa	0.8MPa
12	Traveling system	4*3	4*3	5*4	5*4	5*4	6*5	6*5
13	Overall size	15.9*2.50*3.99m	17*3.05*4.49m	18.4*3.05*4.49m	19.4*3.05*4.49m	20.3*3.05*34.4m	23*3.2*4.5m	23*3.2*4.8m
14	Total weight	approximate 25000kg	approximate 46000kg	approximate 50000kg	approximate 52000kg	approximate 58000kg	approximate 76000kg	approximate 78000kg