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Modular Electric Drive Water Well Top Drive Drilling Rig
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The new electric driven core top drive drilling rig independently developed by Hebei Yongming is suitable for mineral exploration and coalfield geological exploration within a range of 1000-2000meters. It has the characteristics of high construction efficiency, high core recovery rate, high drilling verticality, and low labor intensity for workers. Compared with conventional vertical axis or fully hydraulic crawler drilling rigs, this series of drilling rigs has the following features:
★Abandon the kelly and adopt top drive drilling technology, cancel the action of the guide rod, and use stand drilling in non core formations, improve drilling efficiency;
★The upper and lower sliding of the top drive is driven by hydraulic cylinders, which can achieve
precise control of drilling pressure by adding and reducing pressure during drilling;
★Adopting a load dual channel design scheme,the top drive can make way for the wellhead during tripping in &out. Drawworks is used in conjunction with traveling block to ensure high efficiency of traditional drilling rigs.
★The mud pump, drawworks, and top drive adopt the most advanced rare earth permanent magnet electric direct drive technology, simplifying the transmission chain and improving transmission efficiency, reducing equipment failure downtime rate.
★Equipped with driller's control cabin to improve the working environment for drillers;
★The whole machine adopts modular design and can also choose trailer type to improve moving
efficiency;
★The mast is high with monkey board, and uses stand to tripping in&out to ensure drilling
efficiency;
★Equipped with a dedicated mechanical arm with a control system, it can achieve automated single strand connection actions, reducing the labor intensity.
★The substructure adopts a front high and back low stepped structure, which facilitates the
wellhead workers to not bend down and unscrew the drilling tools, reducing the labor intensity of workers;
★Adopting a centralized driller control method, the hydraulic, electrical, video surveillance, and
drilling instruments of the drilling rig are centrally installed in the driller's control cabin to improve working environment for drillers.
★Equipped with digital detection technology, real-time monitoring and storage of data such as well depth, drill bit position, hook load, bit pressure, traveling block height, pump pressure, pump volume, speed, torque, etc. can be achieved. Real time monitoring of equipment operation status, including key bearing temperature, power head lifting pressure, hydraulic disc brake status of direct drive drawworks, and traveling block pulling force during lifting.
★The electronic control system is equipped with comprehensive protection functions,including anti-collision and anti smashing of the traveling block,speed limit of the drawworks joystick, tension limit, low-speed release of reverse torque, motor overload, stall, etc., to avoid drilling accidents caused by human operation errors and improve operation safety.Main Technical Parameters
Parameters DD-15DK DD-20DK DD-25DK DD-30DK Construction Capacity Drilling Capacity (φ89mm Drill Tool) (m) 1500 2000 2500 3000 Maximum Hook Load (kN) 500 750 900 1100 Maximum Drill String Weight (kN) 300 400 500 600 Floating System Large Hook Speed (m/s) Low Gear 0~0.75 0~0.75 0~0.55 0~0.6 High Gear 0~1.2 0~1.5 0~1.1 0~1.2 Floating Rope System 4×5 4×5 4×5 6×7 Drilling Rope Diameter (mm) φ20 φ24 φ26 φ24 Top Drive
Drilling DeviceStructural Form Permanent Magnet Synchronous Motor Direct Drive Speed Range (r/min) 0~200 0~300 0~300 0~200 Continuous Drilling Torque (kN.m) 10 15 15 22 Maximum Uncoupling Torque (kN.m) 20 30 30 35 Rated Power (kW) 105 160 160 235 Mud Channel Diameter (mm) φ74 Medium 74 φ74 Medium 105 Main Hoist Rated Power (kW)
Rated Power220 315 315 400 Fast Rope Tension (kN) Low Gear 65 100 125 100 High Gear 40 50 62.5 50 Maximum Rope Speed (m/s) 9.5 12 9.0 14 Mud Pump Group Mud Pump Model F-300 3HB-500 3HB-800 3HB-1000 Variable Frequency Control
SystemPower Supply Method Grid Power + Generator Set Main Hoist Variable Frequency System (kW) 220 (with braking unit) 315 (with braking unit) 315 (with braking unit) 400 (with braking unit) Derrick and
Drilling PlatformStructural Form Two-Section Telescopic Mast Two-Section Sleeve Telescopic Two-Section Sleeve Telescopic Two-Section Sleeve Telescopic Maximum Hook Load (kN) 500 750 900 1100 Effective Height of Derrick (m) 29 29 29 29 Drill Pipe Power Tongs Applicable Pipe Diameter Range (mm) φ114~φ203.2 φ114~φ203.2 φ114~φ203.2 φ114~φ203.2 Maximum Torque (kN.m) 100 100 125 125 Generator Set Main Power (kW) 400 300x2 400x2 500x2
Modular Electric Drive Water Well Top Drive Drilling Rig
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