Drawworks for drilling rig 

There are several drive modes,the power distributing and utilizing reasonable and high efficiency. 

Hydraulic disk brake or band brake is used as the main brake of drawworks, the assistant brake is electromagnetic eddy current
brake.
The drawworks is equipped with auxiliary drive device which can be used for mast lifting and laying down, also for hoisting the max. weight of drill string while the main drive fails; there is an interface of auto-bit-feed remained for rig upgrade.

Optionally, it can be equipped with frictional cathead or hydraulic cathead.

The arrangement mode of high front-low back is adopted, the drawworks, power and drive system are placed at low position, the rotary table and cathead on drill floor are driven through bevel gear box and cardan shaft.

The rig with hydraulic disk brake may be equipped with driller cabin optionally, can realize all drilling operation controlled hydraulically and pneumatically in room, also, can achieve the functions for collecting, displaying, storing, printing and remote transmission of drilling parameters, multi-points monitoring and communication.

Specification

Model, drilling rig
Nominal drilling depth, 127mm(5)DP, m			3000	4000	50000	7000
Max. hook load (kN)			1700	2250	3150	4500
drill line number			10	10	12	12
Dia. Of wireline (mm)			29	32	35	38
Max. pull of fastline, kN			200	280	350	487
Drawworks	Model		JC30	JC-40	JC-50	JC-70
	Rated power, kW		560	735	1100	1470
	Gears		4+2R	4+2R	4+2R	4+2R
Main brake			hydraulic disk brake, or band brake
Assistant brake			electromagnetic eddy current brake
Crown block			TC-170	TC-225	TC-315	TC-450
Travelling block			YG-170	YC-225	YC-225	YC-450
OD of sheaves for hoisting system,mm(in)				1005	1120	1524
Hook			YD-170	DG-250	DG-250	DG450
Swivel	Model		SL-170	SL-250	SL-250	SL-450
	dia.of stem bore  (mm)		75
Rotary table	opening dia. mm(in)		444.5(17 1/2)	520(20 1/2)	698.5(27 1/2)	952.5(37 1/2)
	Gears		4+2R	4+2R	4+2R	4+2R
Derrick (mast)	Type		A	K	K	K
	Height (m)		41	43	45	45
	Max. load, kN(lbs)		1700	2250	3150	4500
Substructure	Type		Module-mounted, or box on box
	drillfloor height, m		5/5.5	6/7.5	7.5	7.5
	clear height, m		4/4.5	5,1/6.3	6.3	6.24
Mud pump	Model×number		F-1000×2	F-1300×2	F-1300×2 or F1600×2	F1600×2
	drive mode		Diesels and compound		Diesels and compound
Diesel power× number			810KW×2	810KW×3	810KW×3	810KW×4

For more information, please contact with freely

Contact: Frank    Email: frank@sapwells.net

Zhengzhou Sapwells Petroleum Machinery Co., Ltd.

Website: www.sapwells.net