Brief 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
DQ40B-VSP top drive features
1.Folding guide Rails: Top drive installation is safe, quick and convenient.
2.Equipped with 360° swivel head rotation function.
3. The pulley adopts a double-wheel structure to avoid single force on the roller and extend the service life of the roller.
4. IBOP Rack and Pinion Drive Mechanism: Ensures precise and accurate switching of IBOP (Internal Blow Off Preventer).
5. Inclined hanging backup tong: Replacing tong teeth and tong teeth seat becomes faster and more convenient.
6.Hydraulic Radiator: Extends the life of the hydraulic system.
7. The internal counterbalance is adopted: which makes the jump safe and stable. No other components are needed to hang the big hook or the traveling carriage, and it can be hung directly.
8.The cross-sectional size of the top drive is small: and it is more suitable for derricks.
-
- Typical Parameter
Items |
Data |
(British System) |
Nominal drilling depth (114mm drill pipe) |
4000m |
Rated Load capacity |
2660 KN |
300 ton |
Working height (96" elevator link) |
5770mm |
18.93 ft |
Rated continuous output torque |
50 KN.m |
36878 lb.ft |
Max. Torque of breakout |
75 KN.m |
55317 lb.ft |
Static maximum brake torque |
50 KN.m |
36878 lb.ft |
Speed range of main shaft (stepless adjustable) |
0~180 r/min |
Drill pipe range of back-up tong clamping |
85-187mm |
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 |
470KW |
630HP |
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 |
525 mm |
1.722 ft |
Incoming wire voltage of VFD room |
575~625 VAC |
Incoming wire frequency of VFD room |
600 VAC/50 Hz |
-
- Outline dimension and weight
Items |
Data |
Dimension of Main Body |
5600mm*1255mm*1153mm |
Weight of Main body |
8t |
Weight of Main body (include transportation frame and one section of guide rail) |
10 t |
Length of guide rail ( standard 5 sections) |
3900mm+4000mm*4+4868mm=24768mm |
Weight of guide rail |
9 t |
Weight of VFD room |
11 t |
Dimension of VFD Room |
6058mm*2438mm*2951mm |
Dimension of driller console |
800 mm×350 mm×300 mm |
Weight of driller console |
30kg |
-
- Drilling Parameters
Items |
Specification |
Transmission ratio |
13.37:1 two-stage transmission |
Lubrication method |
Splash lubrication, forced lubrication, immersion lubrication |
Back tong diameter |
Φ200mm |
Back tong clamping range |
86~ 187mm |
Elevator link |
2740mm, 250ton Other models optional |
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.
-
-
- 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.
-
-
- 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.
-
-
- 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 gearbox of the QD40-B Top Drive (TDS) 300ton 4000m is ingeniously engineered with an involute hard tooth surface gear and a secondary bevel gear to ensure a seamless and stable transmission. The transmission ratio of 11.91:1 exemplifies precision and efficiency. To enhance the longevity and efficiency of the system, a dual lubrication method is employed. This combines the strategic splash lubrication with the robust forced lubrication through oil pump circulation, epitomizing modern engineering excellence.
-
-
- Gooseneck Assembly
Specifically crafted for the demanding needs of well logging, the gooseneck is at the forefront of innovation. It features corrosion-resistant liners and nuts, expertly designed to obstruct the upper high-pressure mud pipeline, effectively preventing any mud overflow during drilling. This ensures both a clean operation and the integrity of the drilling environment.
The gooseneck seamlessly integrates with the wash pipe assembly, a component that is designed for super high-pressure environments. This crucial part effectively seals the high-pressure mud, utilizing a self-sealing and rapid disassembly structure. When either the wash pipe or packing needs replacement due to wear, the process involves a simple and efficient method. By merely opening the cover of the upper and lower packing, the entire device can be effortlessly removed without detaching the gooseneck, or the mud hose, providing unparalleled convenience. This design means drilling can be paused and resumed with ease, allowing replacements to be made at any point during the drilling process without undue delay.
The opposite end of the gooseneck robustly connects with the mud hose, utilizing a secure 4-inch female union, with a thread type of Fig1003, ensuring a reliable and leak-proof connection.
At the crucial junction between the main shaft and the wash pipe, a sophisticated mud prevention device is installed. This ensures all site operation requirements are met with precision.
-
-
- Rotating Head
A comprehensive rotating head system is expertly configured, allowing for independent rotation from the main shaft. The accompanying elevator links are suspended from the innovative link adaptor, ensuring efficient and secure operation.
This system utilizes a worm gear transmission structure, ensuring smooth and consistent driving action.
The rotating head's versatility is highlighted by its ability to rotate 360° in both clockwise and counterclockwise directions. This empowers the elevator link and elevator to rotate concurrently, enhancing the ability to grasp the single pipes in the mouse hole and the triple stem on the monkey board with precision and ease.
Driven by a sophisticated hydraulic motor system, the rotating head employs a Danfoss cycloid motor, offering a speed range of 2 to 5 r/min, providing optimal performance.
-
-
- Tilt System
The tilt cylinder is a marvel of engineering, allowing the elevator link to swing to achieve both forward and backward tilt. The forward tilt function enables the elevator to reach into the mouse hole and monkey board efficiently. During drilling, the backward tilt function ensures the lower end surface of the back-up tong is in proximity to the drilling platform, maximizing the use of the drilling tool.
The tilt range is adjustable and influenced by the elevator link's length, showcasing a forward angle of 30 degrees and a backward tilt angle of 55 degrees.
Note: For custom configurations involving different link lengths, early communication with our sales team is advised to ensure seamless service.
The hydraulic system's design includes a 'middle' setting within the tilt mechanism, allowing the elevator link to automatically return to a free swing state, thus preventing undue pressure impact on the hydraulic system.
-
-
- Counterbalance System
The suspension bail counterbalance system is fundamental to the top drive's operation. It is securely linked to the gearbox via the pin shaft, with the upper section suspended on the hook or traveling block. Its principal role is to balance the system's weight. The VSP top drive distinguishes itself by employing a dual hydraulic cylinder with internal force balance mode, directly hanging with hook or traveling block, ensuring maximum safety and reliability without additional devices.
-
-
- Back Up Tong Assembly
This assembly includes a robust L-type back-up tong, utilizing the motor and innovative engineering to The mechanism is engineered with precision, harnessing a robust cylinder system to effortlessly clamp, release, makeup, and breakout, facilitating seamless connections and removals of the saver sub. Without necessitating the disassembly of the tong body, this apparatus significantly simplifies drilling operations. The integration of a tilt mechanism and rotating head forms a comprehensive pipe handling device, enhancing the efficiency of makeup & breakout operations and optimizing drilling tool layout, while substantially diminishing labor intensity and potential hazards.
Designed to accommodate a versatile drill pipe range spanning 85-187mm.
-
-
- Internal Blow Out Preventer (IBOP) smartly integrated for superior performance.
It seamlessly integrates a robust structure with versatile manual and remote control options, control double ball valve with the following main technical parameters:
Working Pressure 70MPa
Thread Type 6-5/8"API REG × 6-5/8"API REG
O.D. Φ187mm
I.D. 3"
The remote control IBOP actuator is composed of dual hydraulic cylinders, a sliding sleeve, and gearing, all working in harmony. The link between the cylinder and sliding sleeve is meticulously designed with roller contact, ensuring the sleeve's axial movement aligns precisely with the main shaft rotation, while the drive wrench facilitates swift opening and closing of the manual IBOP.
This capability ensures rapid closure of the IBOP during well kick or blow-out scenarios, ensuring paramount well control safety.
The sliding sleeve's gear rack, coupled with cam gear technology, enhances operational reliability.
-
-
- Guide Rail and Carriage
A sophisticated folding guide rail assembly is incorporated, featuring multiple section guide rails, interconnections, crown block support, adjustable beam assembly, and essential installation accessories.
With its innovative folding design, site installation becomes swift and user-friendly.
The carriage and guide rail utilize a friction pulley structure.
The pulley is crafted with a double-sided cam follower structure, ensuring even stress distribution across rollers and extending their lifespan.
-
-
- Container
For streamlined transportation, two open-top containers are provided: one accommodates the top drive body, while the other houses the guide rail and cable assembly.
Electrical Control System
The top drive's advanced electrical control system comprises the main control unit, electrical control room, driller's console, power cables, alongside auxiliary and composite control cables, power supply cable, driller's console cable, grounding cable, and more.
The top drive features an AC asynchronous induction motor delivering unparalleled drilling power, utilizing an AC frequency conversion drive mode for optimal performance.
-
-
- Main Control System
The electrical control system is outfitted with an ABB ACS880 AC frequency conversion speed regulating device, programmable logic controller (PLC), auxiliary control unit, and more. It boasts comprehensive self-diagnosis, protection, and anti-harmonic interference functions, executing all electrical control capacities during top drive operations with precision.
Harnessing the power of Siemens' Simatic S7-1500 series PLC, controlled via the ProfiBus-DP bus, the system enables meticulous operational parameter settings and comprehensive hardware and software status detection.
Our cutting-edge main control system and driller console boast a robust ProfiBus bus control, ensuring unmatched anti-interference capability, precise and dependable control. Designed for ultimate convenience, they simplify on-site use, installation, debugging, and maintenance.
The auxiliary control unit, ingeniously integrated within the cabinet alongside the PLC, features premier Siemens electric components for top-tier performance.
Experience seamless monitoring with our advanced IPC system, meticulously configured to display crucial top drive operation parameters, system settings, alarm records, and more, including action screens, data curves, maintenance details, and a comprehensive network topology.
For comprehensive data logging, our main control cabinet is designed with two reserved analog output interfaces, offering a choice of 4 ~ 20 mA or 0~10V for torque and speed signals.
Unlock the power of connectivity with our reserved networking interface, providing effortless field connection to wireless or mobile networks, enabling cutting-edge remote data transmission for the top drive.
-
-
- Electrical Control Room (VFD Room)
For a streamlined operation, our electrical control room securely houses the electric drive and control system cabinets, offering reliable installation and effortless maintenance.
Designed for optimal conditions, the VFD room is equipped with state-of-the-art air conditioning to maintain a comfortable temperature range of 25ºC - 30ºC.
The interior decoration material of the control room is crafted from durable plastic spray steel plate, featuring convenient interface ports on the walls for seamless external cable connections.
Our electric control room comes with an external 380V emergency power interface, ensuring continued operation capabilities for makeup, breakout, and low-speed tasks during special situations, with a power supply capacity no less than 200KW.
-
-
- Driller Console
A sophisticated driller console can be seamlessly installed and securely fixed within the driller house, facilitating smooth operation and control of the top drive.
Crafted with precision, the driller console's stainless steel shell features a sealing structure with an advanced positive pressure explosion-proof design, including a comprehensive explosion-proof device with pressure release valve, and components such as air and water separator, joints, interface, filters, etc. In the event of abnormal air pressure, an immediate sound and light alarm system activates, complemented by a corresponding indicator light on the console panel. as well as the corresponding indicator light on the panel of console .
It has a comprehensive suite of functions including torque limit, elevator link tilt, backup tong operation, brake operation, IBOP operation, emergency stop, drilling operations, and more, all complemented by essential operation indicators and instruments.
The system is meticulously configured with essential switches, indicators, installing fittings, connectors, and other components critical for the top drive's flawless operation.
Its console panel is enhanced with a 9-inch LCD screen, providing real-time visualization of the working state, fault notifications, and other operational states of the top drive.
-
-
- Power Service Loop
A robust power service loop (standard) is strategically equipped to deliver power to the main motor, ensuring efficiency and reliability.
Our design includes a terminal rack on the derrick, expertly crafted to secure the power loop.
The loop cable adheres to ZR specifications, tailored for excellence in domestic offshore drilling applications. for domestic offshore drilling.
Power Cable Length: 70m;
designed with explosion-proof connectors at level Exd IIC T5, ensuring safety and reliability.
-
-
- Auxiliary and Control Service Loop
An auxiliary and control service loop is meticulously equipped, with a length tailored to complement the power service loop for precise synchronization.
The length of 70m;
featuring explosion-proof connectors, rated at level Exd IIC T5 for unparalleled safety.
-
-
- Power Supply Cable
Our power supply cable, expertly crafted to connect the generator and electrical control room, spans a length of 35m with a voltage of 0.6 / 1KV, utilizing standard wire lug connections for seamless integration.
-
-
- Control Cable of Driller Console
Experience seamless connectivity with our control cable set, expertly designed to facilitate uninterrupted power supply and communication between the driller console and the CPU over a substantial length of 70 meters.
-
-
- Grounding Cable
Introducing our premium grounding cable assembly, crafted using high-quality domestic cables and featuring two 1.5 meter galvanized grounding rods. Each set includes cables that extend up to 5 meters, ensuring reliable grounding performance.
Hydraulic Control System
Our sophisticated hydraulic control system is a marvel of engineering, embedded within the top drive body. It encompasses a hydraulic source, an advanced hydraulic main control valve set, a robust hydraulic actuator, auxiliary components, and a state-of-the-art hydraulic oil radiator.
-
-
- Hydraulic Source
The hydraulic source is powered by an innovative inclined axial plunger variable pump, engineered for optimal hydrostatic transmission within an open circuit. The pump's flow adjusts smoothly with drive speed and displacement, thanks to an adjustable inclined plate angle. The dual oil outlets on the shell offer exceptional oil suction capabilities, produce minimal noise, and promise extended service longevity, while the drive shaft is resilient, adept at handling both axial and radial loads.
Our hydraulic source's electrical circuit system is constructed to adhere to the highest safety standards with its explosion-proof design, ensuring both the electrical control box and motor uphold uncompromised safety measures.
The hydraulic system is defined by its key technical parameters, which include:
Rated working pressure of system: 14 MPa
Rated flow rate of the hydraulic pump: 16 mL/r
-
-
- Hydraulic Valve Manifold
Featuring a comprehensive hydraulic manifold set, our system utilizes WANDFLUH's acclaimed hydraulic components, including resilient plug valves, while the solenoid valves are also sourced from the esteemed WANDFLUH Company.
The hydraulic control valves are designed for precision with their plug-in construction, and the explosion-proof solenoid reversing valves enhance safety and reliability. This sophisticated system comprises:
First line: The counterbalance system masterfully manages the oil circuit. It integrates a pressure relief overflow valve, hydraulic control check valve, throttle valve, and accumulator, primarily tasked with stabilizing body weight to safeguard thread integrity during joint maneuvers. The pressure relief overflow valve modulates the balance cylinder's working pressure to accommodate the body's weight, while the accumulator provides buffering, shock absorption, and pressure protection. A safety overflow valve, calibrated at 17MPa, is installed on the balance cylinder to shield against impact loads and safeguard the hydraulic cylinder.
Second line: The primary motor brake oil circuit features EX solenoid reversing valves, ensuring robust braking performance.
Third line: The rotating head motor's oil circuit, equipped with explosion-proof solenoid reversing and pressure regulating valves, utilizes hard alloy damping holes in the solenoid valve to enhance longevity.
Fourth line: The Internal Blowout Preventer (IBOP) remote control oil circuit relies on explosion-proof solenoid reversing valves for maximum reliability.
Fifth line: The backup tong control oil circuit is fortified with explosion-proof solenoid reversing valves and augmented by a pressure sensor for precise control.
Sixth line: The Tilt system oil circuit, incorporating an explosion-proof solenoid reversing valve and throttle check valve assembly, allows the elevator link to maintain or change positions as needed, ensuring operational versatility and stability.
In this sophisticated design, each oil circuit is meticulously equipped with pressure detection points. This allows for real-time monitoring of the working pressure, ensuring optimal performance. Additionally, air can be effectively purged from each oil circuit and cylinder through these pressure measurement points, facilitating seamless and efficient system operation.
-
-
- Hydraulic Actuator
The hydraulic actuator is a masterful assembly, composed of the following key elements:
Counterbalance Cylinder (2 pieces), Brake Cylinder (2 pieces), Drive Motor of Rotating Head (1 piece), IBOP Actuator Cylinder (2 pieces), Back-up Tong Cylinder (1 piece), Tilt Cylinder (2 pieces).
-
-
- Hydraulic Auxiliary Components
The hydraulic auxiliary components encompass a range of crucial elements such as accumulators, filters, and an oil tank, among others.
Accumulators These are expertly categorized into brake accumulators and balance accumulators.
Filters are systematically categorized into oil filters, high-pressure filters, oil return filters, and air filters, each serving a distinct purpose in maintaining system integrity.
An upper-mounted oil tank is strategically installed to store the hydraulic oil essential for system operation, while concurrently dissipating excess heat to maintain optimal working conditions.
-
-
- Radiator
Cleverly positioned at the air inlet of the cooling blower, the radiator utilizes the main motor to forcefully cool the hydraulic oil, thereby ensuring the longevity and reliability of the hydraulic system.