Petroleum Well Control Equipment Co., Ltd.(PWCE)

Skid-Mounted Drilling Rigs

Short Description:

This kind of drilling rigs are designed and manufactured in accordance with API standards.

These drilling rigs adopt an advanced AC-VFD-AC or AC-SCR-DC drive system and a non-step speed adjustment can be realized on the draw works, rotary table, and mud pump, which can obtain a good well-drilling performance with the following advantages: calm startup, high transmission efficiency and auto load distribution.

Product Detail

Product Tags


One-to-one control is designed for the VFD system and one-to-two control is designed for the SCR system., The intellectual control of the driller over the drilling rigs can be realized by the PLC system and the integrated design of touch screen parameters of gas, electricity, fluid, and drilling instrumentation.

The K-type mast and the swing-up/sling-shot substructure have good stability and provide a large working space. The mast and the equipment on the drill floor can be assembled on the ground and raised integrally.

The skid module structure can make the whole unit very compact and quick for movement, which can meet the requirements of the whole-unit-trucked transportation and cluster-type-well drillings.

The draw works will be driven by a single-shaft gear with a non-step speed adjustment. The transmission is simple and reliable.

Skid -mounted drilling rig 4000m.pic
Skid -mounted drilling rig 5000m   .pic
Skid-mounted drilling rig 2000m.pic

The draw works is equipped with a hydraulic disc brake and motor-energy-consumption braking, and the braking torques can be controlled via the computer.

An auto bit feeder is equipped individually to realize real-time monitoring of the dropping process and drilling process of the DP.

Safety and inspection measures are strengthened under the guidance of the design concept of “Humanism Above All” to meet the requirements of HSE.

Model and parameters of Drilling

Drilling rig model ZJ30DB ZJ40L/J ZJ50L/J/LDB ZJ70LDB/L/D
m Nominal drilling depth 114mm(4 1/2") DP 1600-3000 2500-4000 3500-5000 4500-7000
127mm(4 1/2") DP 1500-2500 2000-3200 2800-4500 4000-6000
Max. hook load, KN(t) 1700 2250(225) 3150(315) 4500(450)
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
brake Mode JC30DB JC40B/J JC50B JC70B/DB
Power rating KW(HP) 400(600) 735(1000) 1100(1500) 1470(2000)
Speed 4F 6F+1R 4F+2R 6F(4F)+2R
Main brake Hydraulic disc brake
Auxiliary brack Eddy brake
Crown block TC170 TC225 TC315 TC450
Traveling block YC170 YC225 YC315 YC450
Sheave OD of hoisting system, mm(in) 1005(40) 1120(44) 1270(50) 1524(60)
HOOK YG170 DG225 DG315 DG450
Swivel Mode SL170 SL225 SL450 SL450
mm 64 75 75 75
Stem diameter 520.7(20 1/2) 698.5(27 1/2) 698.5(27 1/2) 952.5(37 1/2)
Rotary table Table opening speed
Drive mode VFD motor
mast Type K K K K
Height,m 42 43 45 45
Max.load,KN 1700 2250 3150 4500
Substructure Type Box Box Front level,swing lift;rear level,box
Floor height, m 4.5 6 7.5/9 10.5
Clear height, m 2.9 4.8 5.72/7.4 8.9
Mud pump Model x number F-1300x1 F-1300x2 F-1300x2 F-1600x2
Drive mode Compound drive
Electric drive mode of rotarytabel,kw AC-DC-AC or AC-SCR-DC,one for one control

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