The Manufacturer of 350 Ton Top Drive Drilling System with VFD Control for Land Rigs and Workover Rigs

• Customization: Available
• After-sales Service: 3 Year
• Warranty: 1 Year
• Model NO.: DQ50-BQ
• 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 drilling technology that uses a suspended motor (typically electric or hydraulic) to provide the torque needed to rotate the drill string. This system replaces the traditional rotary table and kelly drive methods, offering advantages like increased drilling efficiency, reduced manual labor, and improved safety

VSP new designed DQ50-BQ has been upgraded at many components based on the traditional top drive syetem, that make it has a competitive advantage which is a smaller size with bigger torgue and working efficience.

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 system

The mechanical system is composed of main motor system, air cooling system, brake system, gear box, wash pipe assembly, rotating head mechanism, tilt mechanism, back-up tong mechanism, internal blowout prevention mechanism (IBOP), guide rail and carriage mechanism, container, etc.
The top drive is powered by an AC frequency conversion asynchronous motor to realize AC frequency conversion drive.

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

The main motor is a single top drive special AC frequency conversion asynchronous motor with a power of 290KW. The main technical parameters include:
Rated Voltage 600VAC
Rated Frequency 61Hz
Rated Current 365A
The main motor is equipped with a heater and an explosion-proof wind pressure switch
The main motor adopts forced air-cooling mode.
The air-cooling motor : voltage 380VAC / 50Hz, power 4kW, insulation grade F, protection grade IP55, explosion proof level ExdIICT4, wind capacity not less than 70 m3/min, air pressure 203mm water column.

1. 1. 1. Break System

The top drive main motor is equipped with a set of special hydraulic disc brake device, which can assist the drill string orientation in the directional inclined drilling operation.
The disc brake device is installed at the upper extension end of the motor shaft, using a pair of Swedish DELLNER cylinders connected by a special hard pipeline, durable. When the speed of the main motor is reduced to 3rpm, the friction forces on the brake disc through the brake cylinder can realize the braking function of the main motor.

1. 1. 1. Gear Box

In order to increase the output torque of the top drive motor, reduce the motor volume and improve the motor performance, one set of gear box is configured.
The gear box adopts involute hard tooth surface gear with secondary bevel gear to realize stable transmission, transmission ratio is 11.91:1. The lubrication in the box adopts the combination form of splash lubrication and forced lubrication by the oil pump circulation.

1. 1. 1. Gooseneck Assembly

The gooseneck is specially designed for well logging. During drilling, corrosion resistant liner and nuts are used to block the upper high-pressure mud pipeline to avoid mud overflow.
One end of the gooseneck is connected with the wash pipe assembly. The wash pipe assembly adopts the super high pressure structure, which is an important part of sealing the high pressure mud and adopts self-sealing and rapid disassembly structure. When the wash pipe and the packing are damaged by wearing and need to be replaced, merely open the cover of upper and lower packing to taker off the whole device without removing the gooseneck and the mud hose. It is easy to stop drilling to replace at any time during the drilling process.
At the heart of our top-tier equipment, the gooseneck's other end seamlessly connects to the mud hose, a robust 4-inch female connection ensuring a reliable and secure link. The union boasts a distinct thread type, Fig1003, promising steadfast performance under diverse conditions.
To ensure peak safety and performance during site operations, a mud prevention device is meticulously installed at the pivotal connection between the main shaft and wash pipe.

1. 1. 1. Rotating Head

Our state-of-the-art rotating head system is expertly designed to operate independently of the main shaft, while the elevator links are effortlessly suspended on the link adaptor. These elevator links are ingeniously designed to hang securely on the link adaptor, optimizing functionality.
Utilizing an advanced worm gear transmission structure, the drive mechanism operates with unparalleled smoothness and efficiency.
The rotating head showcases remarkable flexibility and control, offering the ability to rotate a full 360° in both clockwise and counterclockwise directions. It synchronously drives both the elevator link and elevator, facilitating seamless grasping of single pipes in the mouse hole and triple stems on the monkey board. This superior equipment ensures optimal engagement with the triple stem on the monkey board.
Our rotating head is powered by an exceptional hydraulic motor system, featuring the renowned Danfoss cycloid motor, delivering a variable speed range of 2 to 5 r/min for precise control.

1. 1. 1. Tilt System

The dynamic tilt cylinder is engineered to drive the elevator link with precision, enabling both forward and backward tilting. This forward tilt function extends the elevator to the mouse hole and monkey board, enhancing operational efficiency. During drilling, the backward tilt function is effectively utilized to bring the lower end surface of the back up tong closer to the drilling platform, ensuring full utilization of the drilling tool.
The tilt range is meticulously designed in relation to the elevator link's length, offering an adjustable forward angle of 30° and a backward tilt angle of 55°.
Note: Should you require links of other lengths, please ensure pre-arranged communication with our dedicated sales team to accommodate your specific needs.
The hydraulic system's middle setting within the tilt mechanism guarantees the elevator link can return to a 'free swing' state, minimizing undue pressure impacts on the hydraulic system.

1. 1. 1. Counterbalance System

Our cutting-edge suspension bail counterbalance system is integral to the top drive's performance. It connects the bail to the gear box via a pin shaft, while the upper section hangs securely on a hook or traveling block. Its main role is balancing body weight. The VSP top drive features a dual hydraulic cylinder with internal force balance, offering unrivaled safety and reliability without additional devices, securely attaching to the hook or traveling block.

1. 1. 1. Back Up Tong Assembly

Our back up tong assembly is masterfully equipped with an L-type configuration, utilizing a motor and cylinder system to expertly clamp, release, makeup, and breakout operations, ensuring seamless connections and disconnections. The design facilitates effortless removal of the saver sub without the disassembly of the tong body, streamlining drilling operations for maximum efficiency. This comprehensive pipe handling device, when integrated with the tilt mechanism and rotating head, significantly enhances the operational efficiency of makeup and breakout processes, while reducing labor intensity and minimizing danger levels for personnel.
Engineered to accommodate an applied drill pipe range of 85-187mm for versatile and efficient operations.

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

Our IBOP boasts an integrated design, featuring both manual and remote control through a sophisticated double ball valve system. The following are its key technical parameters: Crafted to meet rigorous standards, the main technical specifications include:
Working Pressure An impressive working pressure capacity of 70MPa.
Thread Type 6-5/8"API REG × 6-5/8"API REG, ensuring reliable and compatible connections.
O.D. An outer diameter measuring precisely Φ187mm for consistent performance.
I.D. 3
The actuator of the remote control IBOP is a marvel of engineering, composed of a pair of robust hydraulic cylinders, a precisely machined IBOP sliding sleeve, and a reliable gear mechanism. This ensemble ensures flawless operation and seamless connectivity between the cylinder and the system. The sliding sleeve is meticulously designed with a roller-touch connection, guaranteeing synchronized axial movement of the sleeve with the rotation of the main shaft, thereby ensuring smooth and efficient operation. Moreover, the drive wrench is expertly crafted to facilitate the effortless opening and closing of the manual IBOP, boosting operational efficiency.
This remarkable feature enables the rapid closing of the IBOP, securing control swiftly in the event of a well kick or blow-out, thereby fortifying the safety of well operations.
Enhancing reliability, the IBOP sliding sleeve employs a gear rack with cam gear design, ensuring consistent and dependable performance.

1. 1. 1. Guide Rail and Carriage

The innovative folding guide rail assembly is a masterpiece of engineering, encompassing multiple sections of guide rails, sturdy connections, crown block support, adjustable beam assembly, and essential installation accessories to ensure a secure setup.
Thanks to the thoughtful folding type design, site installation is not only swift but also remarkably convenient.
The carriage utilizes a friction type pulley structure on the guide rail,
with a state-of-the-art double side cam follower design that ensures even stress distribution across each roller, thereby extending the system's longevity and reliability.

1. 1. 1. Container

For seamless transportation, two open-top containers are meticulously designed: one accommodates the top drive body, while the other houses the guide rail and cable assembly,

Electrical Control System

The top drive's electrical control system is a paragon of sophistication, incorporating a main control system, an advanced electrical control room, a pioneering driller's console, comprehensive power cable assembly, auxiliary and composite control cables, power supply cables, driller's console cable, and robust grounding cables, creating a cohesive system.
Equipped with a cutting-edge AC asynchronous induction motor, the top drive provides formidable drilling power and leverages an AC frequency conversion drive approach for superior efficiency.

1. 1. 1. Main Control System

The electrical control system is enhanced with an ABB ACS880 AC frequency conversion speed regulating device, a state-of-the-art programmable logic controller (PLC), and an auxiliary control unit. The system boasts comprehensive self-diagnosis, protection, and anti-harmonic interference functions, ensuring complete control over top drive operations.
A sophisticated Simatic S7-1500 series PLC from Siemens, governed by the ProfiBus-DP bus, facilitates precise system parameter settings and thorough detection of hardware and software status.
The coordination between the main control system and the driller console is achieved via the robust ProfiBus bus, known for its exemplary anti-interference capabilities, delivering precise and reliable control that's easy to use, install, debug, and maintain on-site.
Housing the auxiliary control unit alongside the PLC, the cabinet incorporates high-quality Siemens electrical components.
An integrated IPC system is configured to provide comprehensive displays of the top drive's operational parameters, system settings, alarms, action screens, data curves, maintenance information, and network topology features.
The main control cabinet is designed with two reserved analog output interfaces of 4 ~ 20 mA or 0~10V, specifically for torque and speed logging signals, ensuring meticulous monitoring.
Moreover, a reserved networking interface is available to facilitate optional field connections to wireless or mobile networks, enabling seamless top drive remote data transmission.

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

With all electrical drive and control system cabinets centralized in the electrical control room, this configuration ensures a firm installation and effortless maintenance.
To maintain optimal working conditions, the VFD room is equipped with air conditioning, keeping the temperature comfortably between 25ºC and 30ºC.
The interior of the control room features high-quality plastic spray steel plate materials, with wall ports designed for seamless interface with external cables, ensuring a streamlined and professional setup.
The electric control room is expertly outfitted with an external 380V emergency power interface, granting the ability to seamlessly perform makeup, breakout, and low-speed operations during special situations. This requires a power supply of no less than 200KW, ensuring reliability and safety.

1. 1. 1. Driller Console

A state-of-the-art driller console can be meticulously installed and securely fixed within the driller house, specifically designed for the seamless operation and control of the top drive.
The driller console boasts a robust stainless steel shell, encapsulated in a sealing structure with a positive pressure explosion-proof design. This advanced explosion-proof system includes a pressure release valve, air and water separator, joints, interface, and filters, ensuring comprehensive protection. In the event of abnormal air pressure within the box, the console is equipped with audible and visual alarms as well as clearly visible indicator lights on the console panel to notify operators promptly.
This console offers a comprehensive suite of functions such as torque limitation, elevator link tilt, backup tong operation, brake operation, IBOP operation, emergency stop, and drilling operations. It also includes essential operation indicators and instruments, ensuring operators have complete control and information at their fingertips.
Switches, indicators, installation fittings, and connectors required for the smooth operation of the top drive are expertly configured.
The console panel features a vibrant 9-inch LCD screen, displaying the real-time working state, fault statuses, and other important operational states of the top drive, providing operators with critical insights at a glance.

1. 1. 1. Power Service Loop

A standard set of power service loop is meticulously equipped to supply power to the main motor,
and includes a terminal rack installed on the derrick to secure the power loop,
ensuring compliance with ZR specifications for domestic offshore drilling operations.
The power cable extends a robust 70 meters in length,
and features top-tier explosion-proof connectors, rated to level Exd IIC T5,

1. 1. 1. Auxiliary and Control Service Loop

The auxiliary and control service loop is masterfully designed to match the power service loop in length,
spanning 70 meters,
and equipped with durable explosion-proof connectors, ensuring a level Exd IIC T5 safety standard.

1. 1. 1. Power Supply Cable

A comprehensive set of power supply cables ensures flawless connectivity between the generator and electrical control room, with a length of 35 meters, a voltage of 0.6/1KV, and reliable standard wire lug connections.

1. 1. 1. Control Cable of Driller Console

The control cable is expertly configured to establish seamless power supply and communication between the driller console and the CPU, extending to a length of 70 meters,

1. 1. 1. Grounding Cable

A robust grounding cable assembly is provided, utilizing high-quality domestic cable, including two 1.5-meter galvanized grounding rods, each with a length of 5 meters, ensuring optimal safety and performance.

Hydraulic Control System

The hydraulic system is expertly integrated into the top drive body, composed of a hydraulic source, a main control valve set, hydraulic actuators, auxiliary parts, and an efficient hydraulic oil radiator.

1. 1. 1. Hydraulic Source

The hydraulic source features an advanced inclined axial plunger variable pump, ideal for open circuit hydrostatic transmission. The flow rate is proportionate to drive speed and displacement, allowing for stepless adjustment via the inclined plate angle. The two oil outlets on the shell offer exceptional oil suction capabilities, minimal noise, and a significantly extended service life, while the drive shaft is engineered to endure both axial and radial loads.
The hydraulic source's electrical circuit system is meticulously designed with explosion-proof features, and both the electrical control box and motor incorporate explosion-proof components, ensuring unparalleled safety and reliability.
Discover the cutting-edge technical prowess of our hydraulic system, encompassing the following key parameters:
Experience optimal efficiency with a system rated working pressure of: 14 MPa
Savor the smooth operation with a hydraulic pump rated flow rate of: 16 mL/r

1. 1. 1. Hydraulic Valve Manifold

Our state-of-the-art hydraulic manifold features high-quality WANDFLUH plug valves and solenoid valves, ensuring superior performance as they, too, are crafted by the prestigious WANDFLUH Company.
Our hydraulic control valves are expertly designed in a plug-in configuration, complemented with explosion-proof solenoid reversing valves, meticulously engineered for safety and reliability. The precise components include:
First line: the counterbalance system, a crucial oil circuit guardian, integrates a pressure relief overflow valve, hydraulic control check valve, throttle valve, and accumulator. Its paramount duty is to stabilize the body weight, shielding threads during joint makeup and breakout. The pressure relief overflow valve modulates the balance cylinder's working pressure, while the accumulator excels in buffering, shock absorption, and pressure safeguarding. Equipped with a 17MPa safety overflow valve, the balance cylinder fortifies the system against impact loads, preserving the hydraulic cylinder's integrity.
Second line: enter the realm of the main motor brake oil circuit, deftly managed by EX solenoid reversing valves.
Third line: the heart of rotational prowess, the motor on rotating head oil circuit, incorporates explosion-proof solenoid reversing valves and pressure regulating valves. The solenoid valve's damping hole, fashioned from robust hard alloy, significantly extends service life.
Fourth line: navigate the Oil circuit of remote control internal blowout preventer (IBOP), curated with explosion-proof solenoid reversing valves for secure operations.
Fifth line: the back-up tong control oil circuit, fortified with explosion-proof solenoid reversing valves and enriched with a pressure sensor for seamless functionality.
Sixth line: the Tilt system oil circuit, a marvel of engineering, comprises explosion-proof solenoid reversing valves, throttle check valves, and more. The solenoid valve ensures precision reversing, while the throttle check valve permits long-term positioning of the elevator link, adaptable to swinging motions.
Every oil circuit is intelligently equipped with pressure detection points, ensuring meticulous monitoring and enabling air discharge from oil circuits and cylinders, thus ensuring flawless system performance.

1. 1. 1. Hydraulic Actuator

This sophisticated hydraulic actuator is composed of the following essential parts:
Counterbalance Cylinder (2 units), Break Cylinder (2 units), Drive Motor of rotating head (1 unit), IBOP actuator Cylinder (2 units), Back-up Tong Cylinder (1 unit), Tilt Cylinder (2 units).

1. 1. 1. Hydraulic Auxiliary Components

Our auxiliary components feature cutting-edge accumulators, filters, and a capacious oil tank, ensuring peak functionality.
Accumulators are ingeniously divided into brake and balance accumulators, optimizing performance.
Filters are expertly categorized into oil, high-pressure, oil-return, and air filters, tailored for comprehensive system protection.
An upper-mounted oil tank is strategically installed, providing essential hydraulic oil storage while effectively dissipating system heat.

1. 1. 1. Radiator

Positioned at the cooling blower's air inlet, our radiator maximizes cooling efficiency. The main motor actively cools hydraulic oil, ensuring the system's longevity and unwavering stability.