• ADS-30Q AC Electric Gear Driven Drawworks

    National Oilwell Varco's ADS Drawworks provide drillers with enhanced hoisting control capabilities that increase the efficiency, productivity and safety of the drilling process. 

    Description

    National Oilwell Varco's ADS Drawworks provide drillers with enhanced hoisting control capabilities that increase the efficiency, productivity and safety of the drilling process. The drawworks are equipped with AC motors which provide significantly more performance and have made possible a machine that requires approximately half the space and weight with less maintenance than traditional drawworks.

     

    Brakes

    •  A sophisticated braking system that offers precise proportional control to improve drilling and tripping technology
    • Unique AC-Power control characteristics allow regenerative braking and load holding without using the friction-plate brakes

     

    Controls
    • Automation of repetitive drilling operations through a wide variety of user-friendly NOV control systems 
    • The control system software includes the following features as standard:
      • Monitoring and control of brake and lube system
      • Monitoring of AC motor temperature and cooling pressure
      • Interface to hook load sensor (dead line)
      • Dynamic Floor and Crown Saver System
      • Disc Brake testing system
      • Disc Brake burning in system
      • "Slip and Cut" function
      • Drawworks power management system

    Features/Benefits

    • Choice of one, two, three or four AC motors with regenerative braking (see specifications chart)
    • Unique modularity of common components offering configurable drawworks models for individual customer applications from 1500 to 6000 HP
    • High capacity water and air-cooled friction-plate braking system offers precision control of the dynamic and static braking capabilities
    • Robust single-speed gear drive reduces space and maintenance requirements
    • Powered by drilling-industry proven variable frequency drives
    • Single unitized frame with simplified drum provides a significantly reduced moment of inertia

    Specifications

     

    Intermittent Horsepower

    6000

    Continuous Horsepower

    6000

    Drum Size

    54" x 84"

    Skid Dimensions L x W (ft.)

    31.4' x 11'

    Weight (lbs)

    164,000

    Line Size

    2" XIP

    3rd Layer Hook Load (lbs.)

     

    12 Lines

    1,969,000

    14 Lines

    2,237,000

    16 Lines

    2,490,000

    Motors

    4 x 1500 HP

    Gearbox

    2 x GB30

    Brakes

    2 x 48"

    Single Line Pull (lbs)

    196,474