Model Number

AC VF DRILLING RIG

FEATURES OF AC VF DRILLING RIG

l         Single shaft AC VF gear drives drawworks; The main brake of drawworks is hydraulic disc brake, the auxiliary brake is dynamic brake, meanwhile it is equipped with auto-bit-feeding device;

l         The automatic system which controls the position of traveling block prevents is colliding with other parts;

l         The rig adopts integrated design of mechanical, electrical, digital control and communication, adopting up-to-state vector control, VF, digital control and field bus communication technology;

Main parts conform to API spec and are marked with API monogram.

SPECIFICATIONS OF AC VF DRIVE DRILLING RIG

THN Mode		ZJ30/1700DZ	ZJ40/2250DZ		ZJ50/3150DZ		ZJ70/4500DZ	ZJ90/5850DZ
Nominal depth m(ft)	114mm(41/2 in.)	1600~3000 (5250~9850)	2500~4000 (8200~13200)		3500~5000 (11500~16400)		4500~7000 (14800~23000)	6000~9000 (19700~30000)
	127mm（5 in）	1500~2500 (4920~8200)	2000~3200 (6600~10500)		2800~4500 (9200~14800)		4000~6000 (13100~19700)	5000~8000 (16400~26250)
Max. load of drilling string kN(kips)		1700(382)	2250(496)		3150(695)		4500(992)	5850(1518)
Max. line number strung		5×6	5×6		6×7		6×7	7×8
Dia of drilling line mm(in)		29 (1 1/8)	32 (1 1/4)		35 (1 3/8)		38 (1 1/2)	42(1 5/8)
Dia of traveling sheave mm(in)		1005(40)	1120(44)		1270(50)		1524(60)	1524(60)
Center pipe dia. of swivel mm(in)		75(3)	75(3)		75(3)		75(3)	75(3)
Rated input power of DW kW(hp)		550(750)	735(1000)		1000(1500)		1470(2000)	2321(3000)
Shifting number of DW		Stepless change	Stepless change		Stepless change		Stepless change	Stepless change
Type of main brake		Disk/Band	Disk/Band		Disk/Band		Disk/Band	Disk/Band
Type of auxiliary brake		Eddy/Eaton	Eddy/Eaton		Eddy/Eaton		Eddy/Eaton	Eddy/Eaton
opening of RT mm(in)		520.7 (20 1/2)	520.7 (20 1/2)	698.5 (27 1/2)	698.5 (27 1/2)	952.5 (37 1/2)	952.5 (37 1/2)	1257.3 (49 1/2)
Shifting number of RT		2 stepless change	2 stepless change		2 stepless change		2 stepless change	2 stepless change
Power per MPkW(hp)		735(1000)	956(1300)		1180(1600)		1180(1600)	1470(2000)
Number of MP		2	2		2/3		2/3	3
Mast effective height m(ft)		41(134)	43(142)		45(147)		45(147)	46(152)
Drill floor height m(ft)		5(16.4),6(19.7).7.5(25)	5(16.4),6(19.7).7.5(25)		7.5(25),9(30),10.5(35)		7.5(25),9(30),10.5(35)	9(30),10.5(35),12(40)
Drill floor clearance m(ft)		3.76(12.4), 4.7(15.6),6.26(20.5)	3.76(12.4),4.7(15.6),6.26(20.5)		6.12(20)7.62(25),9.12(30)		6.12(20)7.62(25),9.12(30)	7.62(25),9.12(30),12(39.4)
Note: DZ-DC drilling rig