Model Dq50-Bq 350 Ton Top Drive Complete with VFD House and Service Loop for 5000m Well Drilling

• 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 represents a revolutionary leap in drilling technology, ingeniously utilizing a suspended motor, whether electric or hydraulic, to deftly provide the torque essential for rotating the drill string. This advanced system triumphs over traditional rotary table and kelly drive methodologies by offering exceptional advantages like enhanced drilling efficiency, substantially reduced manual labor, and significantly improved safety protocols.

Introducing VSP's innovative DQ50-BQ, a masterfully reimagined top drive system that integrates multiple component upgrades over conventional designs, ensuring unrivaled competitiveness. This marvel of engineering boasts a remarkably compact size coupled with extraordinary torque and supreme working efficiency, thoroughly redefining industry standards.

1. 1. Typical Parameter - A snapshot of excellence

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 - Precisely crafted for optimal performance

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 powerhouse of innovationMechanical System - Where precision engineering meets robust design

The mechanical system seamlessly integrates a main motor system, an efficient air cooling system, a reliable brake system, a gear box, wash pipe assembly, rotating head mechanism, tilt mechanism, back-up tong mechanism, and an internal blowout prevention mechanism (IBOP). Further enhancing functionality are the guide rail and carriage mechanism, wrapped in a robust container.
This top drive is empowered by an advanced AC frequency conversion asynchronous motor, realizing the pinnacle of AC frequency conversion drive technology.

1. 1. 1. Main Motor and Air Cooling System - Performance meets reliability

The main motor is a specialized single top drive AC frequency conversion asynchronous motor, delivering an impressive power output of 290KW. The array of technical parameters includes:
Rated Voltage - Ensuring consistent performance 600VAC - The benchmark of excellence
Rated Frequency - Precision engineered 61Hz - Delivering optimal efficiency
Rated Current - Engineered for endurance 365A - Unwavering reliability
The main motor is thoughtfully equipped with a heater and a state-of-the-art explosion-proof wind pressure switch, ensuring uninterrupted performance and safety.
The main motor embraces a forced air-cooling mode, setting new standards in operational efficiency.
The air-cooling motor features a voltage of 380VAC / 50Hz, complemented by a power of 4kW, insulation grade F, protection grade IP55, and is explosion proof, providing level ExdIICT4, with wind capacity not less than 70 m3/min, and an air pressure of 203mm water column. Level ExdIICT4, designed to guarantee superior performance with wind capacity not less than 70 m3/min and an air pressure of 203mm water column.

1. 1. 1. Brake System - Uncompromising control and precision

The main motor of the top drive incorporates a sophisticated hydraulic disc brake device, meticulously designed to assist in precise drill string orientation during directional inclined drilling operations.
The disc brake device is ingeniously installed at the upper extension end of the motor shaft, featuring a pair of robust Swedish DELLNER cylinders, connected by a specially designed hard pipeline for unparalleled durability. Once the main motor's speed reduces to 3rpm, the friction forces engage through the brake cylinder, effectively executing the braking function.

1. 1. 1. Gear Box - Power maximization through innovation

A meticulously crafted gear box is configured to augment the output torque of the top drive motor, reduce its volume, and enhance motor performance.
The gear box employs an involute hard tooth surface gear paired with secondary bevel gear for stable transmission, achieving a transmission ratio of 11.91:1. The lubrication system ingeniously combines splash lubrication with forced lubrication through the oil pump circulation, ensuring seamless operation.

1. 1. 1. Gooseneck Assembly - Engineered for precision and reliability

The gooseneck assembly is expertly designed for well logging, utilizing corrosion-resistant liner and nuts to effectively seal the upper high-pressure mud pipeline, preventing any risk of mud overflow during drilling.
One end of the gooseneck securely connects with the wash pipe assembly, which adopts a super high pressure structure essential for sealing the high pressure mud. Its innovative self-sealing and rapid disassembly structure ensures seamless maintenance. Simply open the cover of the upper and lower packing to effortlessly remove the entire device without detaching the gooseneck or the mud hose. This feature empowers operators to halt drilling and replace components at any time, guaranteeing uninterrupted drilling processes.
At the other end of the gooseneck, it is seamlessly connected with the mud hose through a robust 4-inch female joint. This union features a Fig1003 thread type, ensuring a secure and reliable connection.
A sophisticated mud prevention device is strategically installed at the juncture of the main shaft and the wash pipe, meticulously designed to meet the rigorous demands of site operations.

1. 1. 1. Rotating Head

The system includes one set of a state-of-the-art rotating head that operates independently of the main shaft, with elevator links tastefully suspended on the link adaptor. These elevator links are suspended on a precisely engineered link adaptor.
With an advanced worm gear transmission structure, this system guarantees smooth and efficient operation.
The rotating head's versatility allows it to rotate 360° in both clockwise and counterclockwise directions, seamlessly driving the elevator link and elevator together to effectively grasp the single pipe in the mouse hole and the triple stem on the monkey board. The triple stem on the monkey board is easily handled.
A powerful hydraulic motor system, featuring the cutting-edge Danfoss cycloid motor, propels the rotating head with speeds ranging from 2 to 5 r/min.

1. 1. 1. Tilt System

The dynamic tilt cylinder propels the elevator link to swing, enabling forward and backward tilting with precision. The forward tilt allows the elevator to seamlessly extend to the mouse hole and the monkey board. During drilling, the backward tilt ensures the lower end of the backup tong aligns closely with the drilling platform, optimizing the use of the drilling tool.
The tilt range, adjustable, is contingent on the elevator link's length, featuring a forward angle of 30° and a backward tilt angle of 55°.
Note: Should you require different link lengths, please communicate with our knowledgeable sales team in advance.
The hydraulic system elegantly incorporates a 'middle' setting within the tilt mechanism, which allows the elevator link to automatically return to a free swing state, preventing undue pressure in the tilt cylinder and safeguarding the hydraulic system.

1. 1. 1. Counterbalance System

The suspension bail counterbalance system is a pivotal component of the top drive system. This bail, expertly connected with the gearbox via a pin shaft and securely hung on the hook or traveling block, masterfully balances the body weight. The VSP top drive is equipped with a double hydraulic cylinder with an internal force balance mode, allowing for direct hanging with hook or traveling block, eliminating the need for additional devices. This design enhances safety and reliability during operations.

1. 1. 1. Back Up Tong Assembly

Outfitted with a single L-type backup tong assembly, featuring a combination of motor and cylinder for clamping, releasing, makeup, and breakout operations. This allows for the connection and removal of the saver sub without disassembling the tong body, significantly facilitating drilling operations. When combined with the tilt mechanism and rotating head, this forms a comprehensive pipe handling device that enhances makeup and breakout efficiency, optimizes drilling tool layout, and substantially lowers labor intensity and potential hazards for operators.
Applicable drill pipe range: 85-187mm

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

This is an integrated structure featuring both manual and remote control double ball valves, with the following main technical specifications:
Working Pressure 70MPa
Thread Type 6-5/8" API REG × 6-5/8" API REG
Outer Diameter (O.D.) Φ187mm
Inner Diameter (I.D.) 3
The actuator of the remote control IBOP is a masterpiece of engineering, featuring a pair of meticulously designed hydraulic cylinders, a robust IBOP sliding sleeve, and a precision gear system. The connection between the cylinder and the sliding sleeve is ingeniously crafted using a roller touch mechanism, ensuring seamless axial movement in perfect harmony with the main shaft's rotation. The sliding sleeve's roller touch connection guarantees synchronized axial motion, enhancing operational synergy. This innovative design facilitates the dynamic interaction between the sleeve and the rotating main shaft. The drive wrench is an essential tool, enabling user-friendly opening and closing operations of the manual IBOP system.
With this advanced mechanism, the system can rapidly secure the IBOP, especially crucial during unexpected well kicks or blow-outs, thereby ensuring impeccable well control and safety.
The IBOP sliding sleeve, driven by a sophisticated gear rack with cam gear, sets a new standard for reliability.

1. 1. 1. Guide Rail and Carriage

An innovative folding guide rail assembly is expertly configured, comprising multiple sections of guide rails, strategic connections, a crown block support, an adjustment beam assembly, and essential installation accessories.
Implementing a folding design, this assembly allows for swift and convenient site installation.
The carriage and guide rail feature a friction type pulley structure, enhancing stability and performance.
With a double side cam follower structure, each roller is evenly stressed, significantly extending operational lifespan.

1. 1. 1. Container

For optimized transportation, two open-top containers are ingeniously utilized: one for the top drive body and the other for the guide rail and cable assembly.

Electrical Control System

The top drive's electrical control system is a comprehensive suite, including a main control system, an electrical control room, a driller's console, a power cable, and both auxiliary and composite control cables, alongside power supply and grounding solutions. Console cables and grounding components complete this sophisticated setup.
An AC asynchronous induction motor powers the top drive, employing an AC frequency conversion drive mode for unmatched drilling efficiency.

1. 1. 1. Main Control System

Our cutting-edge electrical control system is equipped with the ABB ACS880 AC frequency conversion speed regulating device, a programmable logic controller (PLC), and auxiliary control units. The system boasts a comprehensive suite of self-diagnosis, protection, and anti-harmonic interference functions, ensuring flawless operation of the top drive's electrical controls.
Utilizing the Simatic S7-1500 series PLC by Siemens, controlled via ProfiBus-DP bus, facilitates seamless system parameter settings and real-time hardware and software status detection.
The main control system and driller console, governed by the ProfiBus bus, offer robust anti-interference capabilities, precise control, and are designed for effortless on-site use, installation, debugging, and maintenance.
The auxiliary control unit, sharing a cabinet with the PLC, incorporates top-tier Siemens electric components.
A comprehensive IPC system is configured to display a full spectrum of top drive operation parameters, system settings, alarm records, action screens, data curves, maintenance details, and network topology functionalities.
The main control cabinet comes equipped with dual analog output interfaces, offering signals of 4 ~ 20 mA or 0~10V for both torque and speed logging.
An optional networking interface is reserved, facilitating seamless wireless or mobile network connections and enabling remote data transmission of the top drive.

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

The electric drive and control system cabinets are strategically centralized within the robust electrical control room, ensuring firm installation and effortless maintenance.
Equipped with air conditioning, the VFD room maintains an optimal temperature range of 25ºC -30ºC.
The interior decoration material is carefully selected to complement the advanced technical environment. The control room boasts a robust plastic spray steel plate construction, featuring ingeniously designed wall interface ports seamlessly connecting to external cables.
Our state-of-the-art electric control room is ingeniously equipped with an external 380V emergency power interface, providing the capability for makeup, breakout, and low-speed operations in extraordinary situations, provided the power supply is no less than 200KW.

1. 1. 1. Driller Console

Elegantly integrated within the driller house, a singular driller console stands ready to orchestrate and command the top drive with precision and ease.
The driller console features a masterful sealing structure enveloped in a sophisticated stainless steel shell, enhanced by a positive pressure explosion-proof design. Its explosion-proof mechanism includes a meticulous pressure release valve, air and water separator, joints, interfaces, and filters. With an acute sense of safety, sound and light alarms, alongside indicator lights on the console panel, alert operators to any anomalies in box air pressure.
This sophisticated console offers an array of functions including torque limit, elevator link tilt, backup tong operation, brake operation, IBOP operation, emergency stop, and drilling operations, all complemented by essential operation indicators and instruments.
Meticulously configure the switches, indicators, fittings, connectors, and everything necessary for seamless top drive operations.
The console panel is adorned with a vibrant 9-inch LCD screen, providing a detailed display of the top drive's working status, faults, and other essential states, ensuring operators are always informed.

1. 1. 1. Power Service Loop

A standard power service loop is expertly equipped to deliver robust power to the main motor,
with a terminal rack strategically positioned on the derrick to secure the power loop in place,
ensuring compliance with ZR specifications, perfect for domestic offshore drilling.
A 70m power cable, featuring explosion-proof connectors at level Exd IIC T5, ensures safe and reliable power delivery.

1. 1. 1. Auxiliary and Control Service Loop

An auxiliary and control service loop is expertly provided, with a length perfectly mirroring that of the power service loop,
measuring an impressive 70m,
and equipped with explosion-proof connectors at level Exd IIC T5 for optimal safety.

1. 1. 1. Power Supply Cable

A power supply cable, spanning 35m, seamlessly connects the generator to the electrical control room, operating at a voltage of 0.6/1KV, using high-quality standard wire lug connections to ensure uninterrupted power flow.

1. 1. 1. Control Cable of Driller Console

A meticulously crafted control cable is configured, facilitating power supply and seamless communication between the driller console and the CPU, with a generous length of 70m.

1. 1. 1. Grounding Cable

A grounding cable assembly is thoughtfully configured using domestically made cable, including two 5m lengths paired with galvanized 1.5m grounding rods, ensuring impeccable grounding.

Hydraulic Control System

Integrated with precision, the hydraulic system in the top drive body comprises a hydraulic source, a masterful hydraulic main control valve set, hydraulic actuators, auxiliary parts, and an efficient hydraulic oil radiator, offering unmatched control.

1. 1. 1. Hydraulic Source

The hydraulic source boasts an inclined axial plunger variable pump, designed for hydrostatic transmission in open circuits. Its flow, meticulously proportional to drive speed and displacement, allows for stepless adjustment by altering the inclined plate angle. Notably, its dual oil outlets exhibit superior oil-sucking traits, minimal noise, and a prolonged service life, with a drive shaft engineered to withstand axial and radial loads with ease.
The electrical circuit system of hydraulic source adopts explosion-proof design, and the electrical control box and motor all adopt explosion-proof components.
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

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