Features of 750HP~4200HP DC drilling rig
1. DW, RT and mud pump realize independent DC stepless speed regulation which provide guarantee for drilling technology optimization.
2. Mast, substructure and drill floor equipments can be installed at lower position, and then be lifted integrally upon DW power.
3. Auto-bit-feeding adopts all-digital auto control technique, driller operates the touch screen to fulfill drilling operation through optimized drilling parameters, which will reduce labor intensity significantly and improve work efficiency. Display, restoration, regulation and control, remote management of major drilling parameters can be realized.
Specifications of 750HP~4200HP DC drilling rig
|
Model
|
ZJ30D
|
ZJ40D
|
ZJ50D
|
ZJ70D
|
ZJ90D
|
|
Nominal depth
m (ft)
|
114mm(4 1/2 in.) DP
|
1600～3000
(5250～9850)
|
2500～4000
(8200～13200)
|
3500～5000
(11500～16400)
|
4500～7000
(14800～23000)
|
6000～9000
(19700～30000)
|
|
127mm(5 in.) DP
|
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〕
|
6750〔1752〕
|
|
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)
|
45 (1 3/4)
|
|
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)
|
1100 (1500)
|
1470(2000)
|
2210(3000)
|
|
Shifting number of DW
|
4 Stepless change
|
4 Stepless change
|
4 Stepless change
|
4 Stepless change
|
4 Stepless change
|
|
Type of main brake
|
Disk/Band
|
Disk/Band
|
Disk/Band
|
Disk/Band
|
Disk/Band
|
|
Type of auxiliary brake
|
E.T. N Eddy/Eaton
|
E.T. N Eddy/Eaton
|
E.T. N Eddy/Eaton
|
E.T. N Eddy/Eaton
|
E.T.N Eddy/Eaton
|
|
Opening of RT mm (in)
|
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)
|
|
952.5(37 1/2)
|
|
Shifting number of RT
|
2 Stepless change
|
2 Stepless change
|
2 Stepless change
|
2 Stepless change
|
2 Stepless change
|
|
Power per MP kW (hp)
|
735(1000)
|
956(1300)
|
956(1300)
|
1180 (1600)
|
1640(2200)
|
|
1180(1600)
|
|
Number of MP
|
1
|
2
|
2
|
2/3
|
3
|
|
Mast effective height m (ft)
|
41(134)
|
43 (142)
|
45 (147)
|
45(147)
|
48(157)
|
|
Drill floor height m (ft)
|
7.5(25)
|
7.5(25)
|
10.5 (35)
|
10.5 (35)
|
12 (40)
|
|
Drill floor clearance m (ft)
|
6.26(20.5)
|
6.26(20.5)
|
9.12 (30)
|
9.12 (30)
|
12(39.4)
|