compound drilling rig

Compound Drive Drilling Rig Compound Drive Drilling Rig  Achieving sound operation performance by economical power configuration, the compound drive drilling rig meets the requirement of modern drilling technology by overcoming high cost of electric drive, long route of mechanical drive and high-floor rotary table climbing drive during mechanical drive, thereby being highly competitive in the market.The main models are as follows: ZJ30LDB, ZJ40LDB, ZJ50LDB and ZJ70LDB drilling rig etc. Technical characteristics.The drawworks and mud pumps are driven by "diesel engine+ torque converter or coupling transmission +chain compound" while rotary table is driven by AC VFD motor or DC motor to obtain smooth speed change and torque limit for better drilling performance;.Rig floor is in two levels. Power and transmission system are installed on the rear low level.Drawworks is inner speed change. Speed shift adjustment and change is easily available by remote pneumatic control;.Main brake is hydraulic disk and auxiliary brake is electric magnetic eddy brake;.Box of front level with swing lift and rear level with box type substructure is available;.Ample space on rig floor is available for convenient operation.Module design is provided for reasonable arrangement, power compensation and high use ratio;.Compound can be used to drive the energy saving generator and automatic air compressor;.Top drive drilling system can be equipped;.Integrated skid rail may be provided to meet requirements for cluster well drilling.Technical parameters 

Drilling rig model		ZJ30/1700 LDB	ZJ40/2250 LDB	ZJ50/3150 LDB	ZJ70/4500LDB
Nominal drilling depth, m	114mm(4½") drill pipe	1500-2500	2500-4000	3500-5000	4500-7000
	127mm(5") drill pipe	1600-3000	2000-3200	2800-4500	4000-6000
Max. hook load, kN(in)		1700	2250	3150	4500
Hook speed, m/s		0.22-1.63	0.21-1.35	0.21-1.39	0.21-1.36/0.25-1.91
Line strung of hoisting system		10	10	12	12
Drill line diameter, mm		29	32	35	38
Max. pull of fast line, kN		210	280	350	485
Drawworks	Model	JC30B	JC40B	JC50B	JC70B
	Power rating, kW(HP)	400	735	1100	1470
	Speed	4F	6F+1R	4F+2R	6F(4F)+2R
Main brake		Hydraulic disc brake
Auxiliary brake		Hydraulic disc brake
Crown block		TC170	TC225	TC315	TC450
Traveling block		YC170/YG170	YC225	YC315	YC450
Sheave OK of hoisting system, mm(in)		1005	1120	1270	1524
Hook		DG225/YG170	DG225	DG315	DG450
Swivel	Model	SL170	SL225	SL450	SL450
	Stem diameter, mm	64	75	75	75
Rotary table	Table opening, mm(in)	520.7	698.5	698.5	952.5
	Speed	I, smooth change			I or II, smooth change
	Drive mode	VFD motor			VFD/ DC motor
Mast	Type	K
	Height, m	42	43	45	45
	Max. load, kN	1700	2250	3150	4500
Substructure	Type	Box		Front level, swing lift; rear level, box
	Floor height, m	Front 6, rear 0.8	Front 9, rear 0.8	Front 9, rear 0.8	Front 10.5, rear 0.8
	Clear height, m	2.9	4.8	7.4	7.4 or 8.9
Mud pump	Model×number	F-1000×1	F-1300×2	F-1300×2	F-1600×2
	Drive mode	Compound drive
Electric drive mode of rotary table, kW		AC-DC-AC or AC –SCR-DC, one for one control

compound drilling rig