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You are here: Home / Products / Noralis Directional Module (NDM)

Noralis Directional Module (NDM)

MWD’s First Integrated Electronics Solution

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NDM’s replace expensive 20-years-old MWD technology with solid-state sensors, integrated microprocessor, and power management into one powerful and cost effective solution.

Solid State Sensors

  • 27 sensors
    • 18 accelerometers
      • 6 – High Range
      • 12 – Low Range
    • 3 ruggedized magnetometers (solid state)
    • 3 shock sensors (x,y,z)
    • 2 temperature sensors
    • 1 gyro sensor
  • Real Time proprietary algorithms constantly working

Electronics

  • 32-bit Processor
  • 24 x 16-bit A/D Converters
  • Standard USB interface or Q-bus interface

Memory

  • 32 Megabytes (20 days drilling)
    • Full 27-sensor array every 20 seconds
    • Gamma ray every 5 seconds
    • Real-time telemetry
    • Triggered Records (pumps on/off, voltage, shock/vibration thresholds)
  • Memory Loop when full
    • Oldest data is removed, the most recent data is always available
  • Lifetime Logs
    • Time at Temperature (10° C buckets)
    • Time at Peak Shock
    • Time at Average Shock
  • Improved 10x download rate

Compatibility

  • Standard End Connectors
  • Interfaces with Standard Gamma and Pulsers
  • Standard M-ARY encoding for Real-Time Variables
  • Q-Bus capable


Advantages

  • Cost - Significantly less expensive than competitors
  • Accuracy (Meets Standard MWD Instrument Performance Model ISCWSA MWD Rev4)
  • Reliability - Reduced # of boards, connections, and voltage rails
  • Redundancy - 27 sensors, system automatically switches out any sensor that is bad
  • Ruggedness - Many times higher shock ratings than delicate quartz sensors
  • Length - Single chassis shorter than traditional tools
  • Real Time Shock & Vib - The most options available (12 unique parameters)
  • Tracking - All interactions with tools recorded automatically on a user web-portal in the Noralis HUB.

Specifications

Max Survival Temperature 175° C
Max Operating Temperature 165° C
Length 29.2" (74.17 cm)
Diameter 1.38" (3.5 cm)
Weight 3.1 lbs (1.4 kg)
Vibration Qualification 20g RMS 15-500 Hz
Shock Qualification 1000G, 1 ms, half-sine
Sensor Shock & Vibe Qualification 250g RMS 10-500 Hz :: 3500G, 1ms, half-sine
Sensor Accuracy 16 bit
Inclination ± 0.1°
Azimuth @ 90° Inc. (Dip < 70°) ± 0.25°
Azimuth @ 45° Inc. (Dip < 70°) ± 0.375°
Dip Angle ± 0.4°
Total Gravity Field ± 0.0025 G
Total Magnetic Field ± 30 nT (± 0.00030 Gauss)
Input Voltage 9V - 40V
Power @ 28 Volts 1.15 W

Related Features

  • Environmental Logging
  • Real-time Shock/Vibration

Documentation

NDM Brochure Version: 1.0 View

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