Tuesday, December 12, 2017
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Positive Pulse Retrievable MWD

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This system can be utilized to reduce lost in hole risk. In the event the BHA becomes stuck during the drilling process, the retrievable MWD system can be wireline retrieved, saving the customer the cost of replacing the MWD system.

Surface Equipment

  • Rig Floor Display
  • Safe Area Interface
  • Standpipe Pressure Transducer
  • Depth Tracking System (optional)
  • Connection Cables
  • Downhole Assembly
  • Wireline retrievable & reinsertable
  • Operational at downhole temperatures to +150°C & +175°C

 

    MWD Probe

    • Directional Sensors/Electronics
    • Battery Pack
    • Pulser/Driver
    • Optional Gamma Detector
    • Bowspring or Finned Centralizers
    • Diameter: 1.88"
    • Length:
      • – 25 ft. standard directional only
      • – 32 ft. with gamma or second battery pack
      • – 39 ft. with gamma and second battery pack

    Flow Ranges:
    75-165 gpm, 3.5" O.D. collar
    100-300 gpm, 4.75" O.D. collar
    150-600 gpm, 6.5" O.D. collar
    400-1100 gpm, 8.25" O.D. collar

    Pressure Drop:
    100 psi @ 400 gpm

    Data Transmission: Positive-pulse

    Electrical Power / Operating Time
    Lithium battery operates to +150˚C or +175˚C. Will operate for 175 to 200 hours per battery pack

    Operational Modes:
    Operator-selectable sequences & downlinking options. Highly flexible operating software. Selectable resolution—all parameters

    Maximum Lateral: 2.6 ft./1,000 ft. or a conical

    Displacement Error Uncertainty: ±0.15˚ maximum

    Inclination Accuracy: ±0.1˚

    Toolface Accuracy: ±0.5˚

    Dip Angle Accuracy: ±0.1˚