China Manufacturer of Top Drive of Load 150 Ton to 500 Ton for Oil and Gas Well Drilling

• Customization: Available
• After-sales Service: 3 Year
• Warranty: 1 Year
• Model NO.: DQ
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Technical Document 1: Working Test Report
• Technical Document 2: Quality Certiifcate
• Operation Training: Provide for Free
• Spare Parts Kit: Shipped Together
• Special Design: Agreement with Clients
• After Sale Service: Dedicated Team
• Transport Package: Skid +Container
• Specification: 350T
• Trademark: VSP
• Origin: China
• HS Code: 8431431000
• Production Capacity: 120 Sets/Yesr
• Package Size: 600.00cm * 220.00cm * 220.00cm
• Package Gross Weight: 15000.000kg

Product Description

The top drive system is a cutting-edge drilling technology utilizing a suspended motor-typically electric or hydraulic-to deliver the essential torque for rotating the drill string. This innovative system supersedes the conventional rotary table and kelly drive methods, offering unparalleled advantages such as enhanced drilling efficiency, minimized manual labor, and a significant boost in safety measures.

VSP's newly designed DQ50-BQ represents a leap forward in top drive technology, with comprehensive upgrades to many components based on the traditional top drive system. This gives it a competitive edge by providing a more compact size while delivering greater torque and superior working efficiency.

1. 1. Typical Parameter

Items	Data	(British System)
Nominal drilling depth (114mm drill pipe)	5000m
Rated Load capacity	3150 KN	350 ton
Working height (3.3m elevator link)	6600mm	21.56 ft
Rated continuous output torque	70 KN.m	4792.2 lb.ft
Max. Torque of breakout	100 KN.m	6846 lb.ft
Static maximum brake torque	70 KN.m	4792.2 lb.ft
Speed range of main shaft (stepless adjustable)	0~220 r/min
Drill pipe range of back-up tong clamping	85-220mm
Max bore hole of back up tong	200 mm	7.87 in
Mud circulation	64 mm	2.5 in
Rated pressure of the mud circulation	35/52 MPa	5000/7500 Psi
Rotation angle of rotating head	0-360°
Speed of rotating head	2~5r/min
Max.tilt angle of elevator link	Forward 30°, backward 55°
IBOP(double ball valves )	Φ187  6-5/8 REG  70MPa
Saver Sub ( standard )	Φ187  6-5/8 REG  NC50
Working Pressure of hydraulic system	0~14Mpa	0~2280 Psi
Voltage of EX solenoid valves	24 VDC
Rated Power of Main motor	800 KW	1073 HP
Rated Speed of Main motor	1200 r/min
Rated Torque of Main motor	2308 N·m	1702.29 lb.ft
Rated Voltage of Main motor	600 VAC
Rated frequency of Main motor	61 Hz
Rated current of Main motor	365 A
Max. speed of Main motor	2400 r/min
Electricity of VFD room	600 VAC/50Hz
Suitable ambient temperature	-45ºC~55ºC
Altitude	≤1,200 m	≤3,937ft
Distance between center of main shaft and center of guide rail	532.5mm	1.747ft
Incoming wire voltage of VFD room	575~625 VAC
Incoming wire frequency of VFD room	47~53 Hz

1. 1. Outline Dimension and Weight

Items	Data
Weight of Main body	12t
Weight of Main body (include transportation frame and one section of guide rail)	15 t
Length of guide rail ( standard 5 sections)	3900mm+4000mm*4+4868mm=24768mm
Weight of guide rail	5t
Weight of VFD room	9.2t
Dimension of VFD Room	5900mm*1740mm*1615mm
Dimension of driller console	870 mm×350 mm×300 mm
Weight of driller console	30kg

Mechanical SystemMechanical System

The mechanical system is an intricate assembly comprising the main motor system, air cooling system, brake system, gearbox, wash pipe assembly, rotating head mechanism, tilt mechanism, back-up tong mechanism, internal blowout prevention mechanism (IBOP), guide rail and carriage mechanism, and a container, among others.
The top drive is powered by an advanced AC frequency conversion asynchronous motor, facilitating an efficient AC frequency conversion drive.

1. 1. 1. Main Motor and Air Cooling System

The main motor is a bespoke single top drive AC frequency conversion asynchronous motor with a robust power of 290KW. Key technical parameters include:
Rated Voltage 600VAC
Rated Frequency 61Hz
Rated Current 365A
The main motor is ingeniously equipped with a heater and an explosion-proof wind pressure switch to ensure optimal functioning.
The main motor employs a sophisticated forced air-cooling mode for efficient thermal management.
The air-cooling motor features a voltage of 380VAC / 50Hz, with a power output of 4kW. It boasts an insulation grade F, protection grade IP55, and explosion-proof capability for enhanced safety. Rated to level ExdIICT4, the motor offers a wind capacity of no less than 70 m3/min, with air pressure at a 203mm water column for superior cooling efficacy.

1. 1. 1. Brake System

The top drive main motor is fortified with a specialized hydraulic disc brake system, crucial for orienting the drill string during directional inclined drilling operations.
This disc brake device is strategically installed at the upper extension end of the motor shaft, featuring robust Swedish DELLNER cylinders connected via a specially designed hard pipeline. This durable setup allows the braking function to engage effectively when the main motor speed reduces to 3rpm, applying friction forces through the brake cylinder onto the brake disc.

1. 1. 1. Gearbox

To augment the output torque of the top drive motor, reduce its volume, and enhance overall performance, an efficient gearbox is configured.
This gearbox employs involute hard-tooth surface gears with secondary bevel gears, ensuring stable transmission. Boasting a transmission ratio of 11.91:1, it combines splash lubrication with forced lubrication via an oil pump circulation for optimal functionality.

1. 1. 1. Gooseneck Assembly

The gooseneck is meticulously engineered for well logging. During drilling, corrosion-resistant liners and nuts are employed to seal the upper high-pressure mud pipeline, effectively preventing mud overflow.
One end of the gooseneck is seamlessly connected to the wash pipe assembly. This assembly employs a super high-pressure structure, crucial for sealing high-pressure mud, and features a self-sealing, rapid disassembly design. When wear necessitates replacement of the wash pipe and packing, simply open the cover of the upper and lower packing to remove the entire device without detaching the gooseneck or the mud hose. This design allows for easy cessation of drilling to facilitate replacement at any point during the drilling process.
At one extremity of the gooseneck, a seamless connection is established with a 4-inch female mud hose, ensuring a flawless, robust link. The union is designed with utmost precision, featuring a Fig1003 thread type to ensure a secure and efficient connection.
A highly efficient mud prevention device is strategically installed between the main shaft and the wash pipe, meticulously crafted to meet the rigorous demands of site operations.

1. 1. 1. Rotating Head

The system includes a rotating head that operates independently from the main shaft. The elevator links are expertly suspended on the link adaptor, ensuring seamless function. Carefully engineered elevator links are suspended on the link adaptor, enhancing operational efficiency and reliability.
The adoption of a worm gear transmission structure facilitates remarkably smooth and efficient driving.
The rotating head is adeptly designed to rotate a full 360° in both clockwise and counterclockwise directions, simultaneously rotating the elevator link and elevator to expertly grasp single pipes in the mouse hole and triple stems on the monkey board. stem on the monkey board, showcasing an impressive grasping capability.
Driven by an advanced hydraulic motor system, the rotating head utilizes the renowned Danfoss cycloid motor, delivering a speed range of 2 to 5 r/min for superior performance.

1. 1. 1. Tilt System

The innovative tilt cylinder propels the elevator link to perform forward and backward tilts. The forward tilt skillfully extends the elevator to the mouse hole and monkey board, enhancing operational adaptability. In drilling scenarios, the backward tilt function is invaluable, positioning the lower end surface of the back up tong close to the drilling platform for optimal use of the drilling tool.
The tilt range is intricately linked to the elevator link's length, offering a forward angle of 30 degrees and an adjustable backward tilt angle of 55 degrees, tailored for precision.
Note: For tailored configurations with varying link lengths, please engage with our sales team in advance to ensure the perfect fit.
The hydraulic system incorporates an intelligent 'middle' setting within the tilt mechanism, allowing the elevator link to automatically return to a free swing state, minimizing pressure impact on the hydraulic system.

1. 1. 1. Counterbalance System

The suspension bail counterbalance system is a cornerstone of the top drive system. The bail, linked to the gearbox via a pin shaft, is securely suspended on the hook or traveling block. This system adeptly balances the body weight. VSP top drive integrates dual hydraulic cylinders with an internal force balance mode, facilitating direct suspension on the hook or traveling block without additional devices, enhancing operational safety and reliability.

1. 1. 1. Back Up Tong Assembly

A proficient L-type back up tong assembly is included, employing motor and cylinder mechanisms to efficiently clamp, release, makeup, and breakout operations. This enables seamless connection and removal of the saver sub without disassembling the tong body, streamlining drilling operations. It integrates with the tilt mechanism and rotating head to form a comprehensive pipe handling device, significantly boosting makeup & breakout efficiency and drilling tool layout while reducing labor intensity and risk. without disassembly of tong body , facilitate drilling operation. A whole set of pipe handling device is formed with the tilt mechanism and rotating head , which improves the working efficiency of makeup & breakout operation and drilling tool layout operation, and greatly reduces the labor intensity and danger level of the staff.
Optimally designed for a drill pipe range of 85-187mm, accommodating a diverse array of operations.

1. 1. 1. Internal Blow Out Preventer (IBOP)

The IBOP features an integrated design with both manual and remote control capabilities, utilizing a double ball valve. Key technical parameters include: control double ball valve , the main technical parameters are as follows:
Working Pressure A formidable working pressure of 70MPa, ensuring robust functionality in demanding conditions.
Thread Type Expertly fashioned with a 6-5/8"API REG × 6-5/8"API REG thread type for premium connectivity and performance.
O.D. An external diameter of Φ187mm, designed for optimal fit and performance.
I.D. 3
The actuator of the remote control IBOP is a marvel of modern engineering, comprising a pair of powerful hydraulic cylinders, an IBOP sliding sleeve, and precision gears. The seamless connection between the cylinder and the sliding sleeve is innovatively designed with roller touching, ensuring synchronized axial movement with the rotation of the main shaft, providing a flawless operation. This synchronization guarantees that the drive wrench effortlessly manages the opening and closing of the manual IBOP, ensuring smooth and reliable performance.
This capability allows for the rapid closure of the IBOP, in the event of a well kick or blow-out, thereby assuring superior well control and safety.
The IBOP sliding sleeve is driven by a gear rack with cam gear, enhancing the device's reliability and robustness.

1. 1. 1. Guide Rail and Carriage

Ingeniously designed, the folding guide rail assembly comprises multiple sections of guide rails, connected seamlessly through a crown block support, an adjustable beam assembly, and a range of installation accessories.
Thanks to its folding design, site installation is both rapid and hassle-free.
The carriage and guide rail utilize a friction type pulley structure,
where the pulley features a double side cam follower design, ensuring uniform stress distribution and extending the lifespan of each roller.

1. 1. 1. Container

For optimal transportation, two open-top containers are provided, one safeguarding the top drive body, and the other housing the guide rail and accompanying cable assembly, ensuring safe and secure transit.

Electrical Control System

The top drive's electrical control system is a comprehensive suite, featuring a main control system, an electrical control room, the driller's console, as well as power and auxiliary cables, composite control cables, power supply cables, and the driller's console cable, complemented by a grounding cable, amongst others.
Equipped with a state-of-the-art AC asynchronous induction motor, the top drive provides formidable drilling power and employs an advanced AC frequency conversion drive mode.

1. 1. 1. Main Control System

The electrical control system is equipped with the ABB ACS880 AC frequency conversion speed regulating device, a programmable logic controller (PLC), an auxiliary control unit, and more, all of which boast comprehensive self-diagnosis, protection, and anti-harmonic interference functions, delivering all necessary electrical control functions for top drive operation.
The cutting-edge Simatic S7-1500 series PLC from Siemens, controlled by the ProfiBus-DP bus, facilitates system operating parameter settings along with hardware and software status detection.
Leveraging the ProfiBus bus, the main control system and driller's console offer robust anti-interference capability, precise and dependable control, and easy installation, debugging, maintenance, and on-site operation.
Housed within the same cabinet as the PLC, the auxiliary control unit integrates Siemens electric components, ensuring seamless performance.
An advanced IPC system showcases top drive operation parameters, system settings, alarm records, action screens, data curves, maintenance information, and network topology functions.
Two reserved analog output interfaces of 4 ~ 20 mA or 0~10V for torque and speed logging signals are included within the main control cabinet.
Optional networking interfaces facilitate effortless field connections to wireless or mobile networks, enabling cutting-edge remote data transmission for the top drive.

1. 1. 1. Electrical Control Room (VFD Room)

Centralized within the electrical control room, the cabinets for the electric drive and control system are securely installed, allowing convenient access and maintenance.
The VFD room is equipped with advanced air conditioning systems, maintaining a consistent temperature range of 25ºC -30ºC, ensuring optimal equipment performance.
The interior of the control room features a sleek plastic spray steel plate finish, with wall interface ports for seamless external cable connections.
The sophisticated electric control room is elegantly equipped with an external 380V emergency power interface, offering the remarkable capability to perform makeup, breakout, and maintain low-speed operations during special situations. This ensures optimal performance with a robust power supply of no less than 200KW.

1. 1. 1. Driller Console

A meticulously designed driller console can be securely installed and fixed within the driller house, providing seamless operation and control of the top drive, ensuring peak efficiency and safety.
The driller console boasts a sealing structure enveloped in a high-grade stainless steel shell, featuring a positive pressure explosion-proof design. The explosion-proof device is complemented by a pressure release valve, along with an air and water separator, joints, interfaces, and filters. Upon detecting abnormal air pressure within the box, sophisticated sound and light alarms are activated, accompanied by an easily visible indicator light on the console panel.
It is ingeniously equipped with a comprehensive suite of functions, including torque limit, elevator link tilt, backup tong operation, brake operation, IBOP operation, emergency stop, and drilling operation. These are complemented by essential operation indicators and instruments for user-friendly control.
Skillfully configure the switches, indicators, installing fittings, and connectors necessary for the top drive's efficient operation.
The console panel is thoughtfully equipped with a 9-inch LCD screen, providing a clear display of the working state, fault conditions, and other essential statuses of the top drive for optimal management.

1. 1. 1. Power Service Loop

A standard set of power service loops is expertly equipped to ensure seamless power supply to the main motor, facilitating uninterrupted operations.
A robust terminal rack is installed on the derrick to securely anchor the power loop, enhancing stability and efficiency.
The cable of the loop is manufactured in accordance with the rigorous ZR specifications, ensuring reliability and safety for domestic offshore drilling operations.
Power Cable Length: 70m;
featuring explosion-proof connectors with a high safety level of Exd IIC T5.

1. 1. 1. Auxiliary and Control Service Loop

A meticulously configured auxiliary and control service loop is provided, with a length that perfectly matches the power service loop.
The length is a precise 70m;
featuring explosion-proof connectors with a high safety level of Exd IIC T5.

1. 1. 1. Power Supply Cable

A high-quality power supply cable is equipped to connect the generator and the electrical control room, with a length of 35m and a voltage rating of 0.6/1KV. It utilizes a standard wire lug connection for optimal performance.

1. 1. 1. Control Cable of Driller Console

A precision-engineered control cable is included to ensure seamless power supply and communication between the driller console and the CPU, with an optimal length of 70m.

1. 1. 1. Grounding Cable

A comprehensive grounding cable assembly is provided, utilizing domestically produced cable, including two 1.5m galvanized grounding rods, each 5m in length, to ensure safety and reliability.

Hydraulic Control System

The hydraulic system is seamlessly integrated into the top drive body, comprising a hydraulic source, main control valve set, hydraulic actuator, auxiliary components, and an oil radiator, for superior control and function.

1. 1. 1. Hydraulic Source

Featuring an advanced inclined axial plunger variable pump, the hydraulic source ensures efficient hydrostatic transmission in an open circuit. The flow is precisely proportional to drive speed and displacement, with stepless adjustment achievable via the inclined plate angle. The dual oil outlets on the shell boast excellent oil-suction characteristics, ensuring low noise levels and an extended service life, with the drive shaft engineered to endure both axial and radial loads for maximum durability.
The electrical circuit system of the hydraulic source is designed with explosion-proof technology, featuring explosion-proof components in both the electrical control box and motor for enhanced safety.
The main technical parameters of the hydraulic system include:
Rated working pressure of system : 14 MPa
Rated flow rate of the hydraulic pump: 16 mL/r

1. 1. 1. Hydraulic Valve Manifold

One set of hydraulic manifold is equipped, the plug valves adopt the WANDFLUH hydraulic components , and the solenoid valves also adopt the products of WANDFLUH Company.
:The hydraulic control valves adopt the form of plug-in type, and the solenoid reversing valves are all explosion-proof products. Its specific composition is as follows:
First line: the counterbalance system controls the oil circuit. It is composed of pressure relief overflow valve, hydraulic control check valve, throttle valve and accumulator. The main function of the counterbalance system is to balance the weight of the body to protect the threads from wearing when the joints makeup and breakout. The function of the pressure relief overflow valve is to adjust the working pressure of the balance cylinder to meet the weight of the body; the accumulator acts as buffer, shock absorption and pressure protection. The balance cylinder is equipped with safety overflow valve with pressure set of 17MPa to prevent impact load to protect the hydraulic cylinder.
Second line: the main motor brake oil circuit.,consists of EX solenoid reversing valves.
Third line: the oil circuit of motor on rotating head. It is composed of explosion-proof solenoid reversing valve and pressure regulating valve. The damping hole of solenoid valve is made of hard alloy material to improve the service life.
Fourth line: the Oil circuit of remote control internal blowout preventer (IBOP) consists of explosion-proof solenoid reversing valves.
Fifth line: the back-up tong control oil circuit. oil circuit.explosion-proof solenoid reversing valves, equipped with pressure sensor.
Sixth line: the Tilt system oil circuit. It is composed of explosion-proof solenoid reversing valve and throttle check valve and other units. The solenoid valve plays the reversing role, and the throttle check valve makes the elevator link stop in any position for a long time, which can be set to the swing state when the elevator link is in the middle position.
The above oil circuits are all set with pressure detection points to monitor the working pressure of each oil circuit. At the same time, the air in each oil circuit and oil cylinder can be discharged through the pressure measurement point to make the system work smoothly.

1. 1. 1. Hydraulic Actuator

The hydraulic actuator consists of the following parts
Counterbalance Cylinder(2 ea),Break Cylinder(2 ea),Drive Motor of rotating head (1 ea),IBOP actuator Cylinder(2 ea),Back-up Tong Cylinder(1 ea),Tilt Cylinder(2ea).

1. 1. 1. Hydraulic Auxiliary Components

Hydraulic auxiliary components consists of accumulators, filters and oil tank, etc.
Accumulators are divided into brake accumulator and balance accumulator.
Filters are divided into oil filter, high pressure filter, oil return filter and air filter.
Install a upper mounted oil tank to store the hydraulic oil required for the work of the hydraulic system and dissipate the heat of the system.

1. 1. 1. Radiator

The radiator is located at the air inlet of the cooling blower. The main motor is used to cool the hydraulic oil by force to effectively ensure the service life and stability of the hydraulic system.