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ZJ70DB/4500 AC Variable-frequency Motor Drive VFD Control Drilling Rig

An AC variable-frequency motor drive VFD control drilling rig

“K” type front open cantilever mast with A-frame. Slingshot type. Include totally five sections, which connected by pins. The mast legs and A-frame are connected to the upper substructure by bolts and pins. The mast clearance is 45.5m, suitable for top drive installation.
The sling shot substructure includes three sections, the upper layer, the middle layer and the bottom layer, to form a parallelogram construction. The installation height of 3.39m; working height of 10.5m and working clearance from ground to the bottom of rotary beam is 8.92m.
The drawworks is designed to be an integral structure with all parts on one skid, single shaft, and gear box drive. Two AC variable frequency motors (600V, 1100kW) with high speed, wide frequency and high torque are used to drive the drawworks. The main drum is lebus grooved. The main brake is hydraulic disc brake; the auxiliary brake adopts the motor regenerating power consumption system with braking resistor sets. A 45kW VFD motor driven auto driller is as option to realize the auto drilling and drawworks emergency operation.
The rotary table is driven by an independent chain box unit. A 600V, 600kW AC variable frequency motor is used to drive the unit to realize the rotary table stepless speed regulation within 0-240rpm.
The mud pump is driven by pulley and belt. An AC variable frequency motor is used to drive the unit to realize the mud pump stepless speed regulation within 0-120SPM.
The rig power system includes four CAT3512B DITA, 1700KVA, 600V, 50Hz main diesel engine generator sets and one auxiliary generator set.
The VFD electrical control system consists of Power Control Unit (GEN Cubicle), Transmission Control Unit (VFD Cubicle), Driller's Console, PLC System, Lighting Control, Motor Control Center (MCC) etc..
主要技术参数

钻机型号
ZJ70DB/4500
绳系
12(6×7)
名义钻深
2,3000ft (4-1/2" DP)
钢丝绳直径
1-1/2"(Ф38mm)
最大钩载
4500kN
转盘开口直径
37-1/2"(Ф952.5mm)
传动方式
AC-VFD-AC 数控
转盘驱动方式
1台交流变频电机驱动, 1+1R
绞车额定功率
2,000hp
泥浆泵功率
1,600hp
绞车驱动方式
2台交流变频电机驱动
泥浆泵驱动方式
每个泵1台交流变频电机驱动
井架类型
“K”型,前开口, 悬臂梁双升式
泥浆泵数量
3
井架净空高
149ft
柴油机组型号
4×CAT3512B DITA,
(可选)
底座类型
双升式
柴油机组台数及功率
4×1310kW(可选)
钻台高度
35ft
辅助发电机组型号
1×CAT C15(可选)
底座净空高
29.3ft
辅助发电机组台数及功率
1×292kW

 
 
Basic Parameters

Rig model
Lines strung
12 (6×7)
Nominal drilling depth
2,3000ft (4-1/2" DP)
Diameter of wire line
1-1/2"(Ф38mm)
Max .hook load
4500kN
Rotary table opening
37-1/2"(Ф952.5mm)
Power transmission mode
AC-VFD-AC digital control
RT driven by
1×AC motor, 1+1R
Drawwoks rated power
2,000hp
Mud pump power
1,600hp
Drawworks driven by
2×AC motors
Mud pump driven by
1×AC motor for each
Mast type
Front open “K” type
Cantilever slingshot type
Mud pump no.
3
Mast clearance
149ft
Diesel engine generator sets model
4×CAT3512B DITA,
as req.
Substructure type
Slingshot
Rated power
4×1310kW, as req.
Drill floor height
35ft
Stand by engine generator
1×CAT C15 as req.
Substructure clearance
29.3ft
Rated power
1×292kW



 Hosted by  
Chinese Petroleum Society
CCPIT Pudong Sub-Council

 Supported by  

 Undertaker  

 Foreigner partners  

Consulate General Of The Russian Federation in Shanghai
PROMEXICO
Canada Saskatchewan Trade and Investment China Office
Consulate General Of The Republic of Ecuador in Shanghai
China-Italy Chamber Of Commerce (CICC)

 Special Thanks to  
China Petroleum & Petrochemical Equipment Industry Association (CPEIA)
PetroChina Research Institute of Petroleum Exploration & Development
Canadian Consulate General Consulat
Government of Alberta China Office
Chamber of Commerce and Industry of the Russian Federation
Mexican Consulate General Consulat
Society of Iranian Petroleum Industry Equipment Manufacturers
Counsul General of the Republic of Ecaudor in Shanghai
COOEC
Sino Oil King Shine Chemical Co.,Ltd.

Baker Hughes

Sichuan Honghua Petroleum Equipment Co., Ltd
SANY HEAVY ENERGY MACHLNERY CO.,LTD.
Jereh
Roxtec

Anhui Sanlian Pump Industry Co.,Ltd

Shandong Shenyu Machinery Manufacturing Co.,Ltd
ZHEJIANG AILIPU TECHNOLOGY CO.,LTD

 

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