Major features:
1. The drawworks and mud pumps are driven by "diesel engine + hydraulic torque converter (or coupling with forward gear box) + chain compounding transmission box/V-belt
compounding transmission system", and the rotary table is driven by mechanical system;
2. The speed change and shifting of drawworks are controlled by pneumatic remote control system;
3. The main brake utilizes hydraulic disk brake, and the auxiliary brake utilizes electromagnetic eddy brake;
4. The rig is modularly designed with reasonable layout, good dynamic cooperation and high power efficiency;
Independent driller cabin can be equipped optionally;
Integral skid system can be equipped optionally;
5. The rig is designed and manufactured in accordance with API standards, conforming to HSE spec and API specs. It can be operated from -35℃ to +50℃.
Specifications
|
Model
|
ZJ30J
|
ZJ40J
|
ZJ50J
|
|
Nominal depth
m (ft)
|
114mm (4 1/2 in.) DP
|
1600～3000
(5250～9580)
|
2500～4000
(8200～13200)
|
3500～5000
(11500～16400)
|
|
127mm (5 in.) DP
|
1500～2500
(4920～8200)
|
2000～3200
(6600～10500)
|
2800～4500
(9200～14800)
|
|
Max. load of drilling string KN (kips)
|
1700(382)
|
2250〔496〕
|
3150〔695〕
|
|
Max. line number strung
|
5×6
|
5×6
|
5×6
|
|
Dia. of drilling line mm (in)
|
29(1 1/8)
|
32 (1 1/4)
|
35 (1 3/8)
|
|
Dia. of traveling sheave mm (in)
|
915(36)
|
1120 (44)
|
1270 (50)
|
|
Center pipe dia. of swivel mm (in)
|
64(2.6)
|
75 (3)
|
75 (3)
|
|
Rated input power of DW kW(hp)
|
550(750)
|
735 (1000)
|
1100 (1500)
|
|
Shifting number of DW
|
Disk/Band
|
Disk/Band
|
Disk/Band
|
|
Type of main brake
|
E.T. N Eddy/Eaton
|
E.T. N Eddy/Eaton
|
E.T. N Eddy/Eaton
|
|
Type of auxiliary brake
|
520.7(20 1/2)
|
698.5 (27 1/2)
|
952.5 (37 1/2)
|
|
Opening of RT mm (in)
|
4forward+2reverse
|
4forward+2 reverse
|
4forward+2 reverse
|
|
Shifting number of RT
|
735(1000)
|
960 (1300)
|
956(1300)
|
|
Power per MP kW (hp)
|
1
|
2
|
2
|
|
Number of MP
|
810(1100)
|
810(1100)
|
810(1100)
|
|
Power of engine kW(hp)
|
2
|
3
|
3
|
|
Number of engines
|
31.5(104)
|
43 (142)
|
45 (147)
|
|
Mast effective height m (ft)
|
4.5(15)
|
6 (20)
|
7.5 (25)
|
|
Drill floor height m (ft)
|
3.44(11.3)
|
4.76 (15.6)
|
6.26 (20.5)
|
|
Note: J - Belt compound
|