|
Model
|
HZJ50DB
|
|
Drilling depth (ft)
|
41/2″DP
|
16500
|
|
5″DP
|
15000
|
|
Max hook load (lbf)
|
708120
|
|
Hook speed (ft/s)
|
0.66～5
|
|
Derrick height (ft)
|
135/148/154
|
|
Derrick type
|
Tower type or jack up
|
|
Drill floor height (ft)
|
15～40
|
|
Engine type
|
--
|
|
Engine power (hp ×set)
|
805×7
|
|
Drive ways
|
VFD drive
|
|
Traveling system
|
7×6
|
|
Drawworks
|
HJC50DB
|
|
Drawworks power (hp)
|
1475
|
|
Main brake
|
Band brake
|
|
Auxiliary brake
|
Motor Resistance Brake
|
|
Drilling line diameter (in)
|
1 3/8”
|
|
Hook block
|
YC315、DG315
|
|
Swivel
|
SL450/XSL450
|
|
Rotary table
|
ZP375
|
|
Mud pump power(hp×set)
|
1600×2
|
|
Nominal working pressure of hydraulic system (psi)
|
2000/3000
|
|
Max working pressure of air system (psi)
|
145
|
(1) the main body of the derrick base is an integral lifting structure. Derrick with low installation, integral lifting, allowed without GUYLINE operation.
(2) JC50DB-L winch equipped with 2 sets of 550kW AC frequency conversion motor stepless speed regulation. Auxiliary brake system using energy consumption brake, can be quantitative, positioning control brake torque, hydraulic disc brake from manual delivery, positioning, parking, safety emergency action. Winch was adopted in the speed control of AC variable frequency control and energy consumption braking (Honghua company patent technology, patent number: ZL02 2 2_22560.9 and frequency by NC system can realize the hook load hover; winch equipped with 45KW AC auxiliary driving device, can realize numerical control constant drilling pressure automatic feed drilling (Honghua company patent technology, patent number: ZL02 2) 2_22561.7 and for emergency operation. Winch low installation, low floor, spacious and open.
(3) turntable by a 600kW AC variable frequency motor through a universal shaft direct drive, simple and reliable transmission, dynamic characteristics of soft, with strong torque capacity; rotary speed 0-300r/min stepless regulation, can according to requirements of the drilling process, manual adjustment of the motor speed, to obtain the ideal rotary speed. The motor and the turntable are arranged on the rotary table beam which is extended, which is a transport unit, the structure is compact, and the installation is convenient.
(4) using 3 sets of PZ12V190BG2-3 diesel engine + hydraulic drive, the chain and the car to drive 2 1300HP mud pump. And the vehicle transmission unit is designed as a transport module, and the vehicle transmission unit and the diesel engine and mud pump are using universal shaft coupling, easy to assemble and disassemble.
(5) modular design of main drive parts of drill rig.
(6) excellent performance characteristics:
1. Make full use of the electric compound drive the advantages of high performance to price ratio, the host (drawwork, rotary table) by DBS digital variable frequency technology, control system digitalization and information; host performance reached or better than the same type of electric drill level;
To solve the problem that the rotating speed of the mechanical drilling rig and the mud pump are controlled by each other, and can not be adjusted separately, according to the requirements of the drilling process, it can be operated under the optimum conditions.
Through the numerical control system to realize the speed of the winch and the position of the closed loop of the digital closed-loop control, combined with a wide range of variable frequency motor speed, can improve the drilling efficiency.
The full digital control constant drilling pressure automatic drill bit feeding, driller uniform, smooth, long bit life, greatly improve the mechanical drilling speed and avoid downhole accidents.
Fifth, the integration of the driller control room electric (number), pneumatic and hydraulic control and video features melting into one, can achieve regulation of drilling parameters and electrical parameters, display, storage, printing, remote monitoring and management, to the driller provides secure, centralized, convenient and comfortable working environment.
With the step type hydraulic shift device, suitable for cluster wells.
The low operation cost, has obvious energy-saving effect
