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  • Near-bit Measurement System



    Key point to realize Logging While Drilling


    Product Introduction


    Product Description


    LHE7601
     

    Speciality


    ◆ Near-bit inclination and dynamic gamma-ray imaging measurements
     
    ◆ The upper and lower nodes transmit data via wireless electromagnetic waves
     
    ◆ Can be used with motor drillers and rotary guide tools

    ◆ Independent power supply system
     
    ◆ Applicable to any type of mud
     

    Application


    ◆ Horizontal well, large displacement well, directional well

    ◆ The boundary has the geological guidance which the dip Angle changes
     
    ◆ Selection of casing running point
     

    Product Parameters


    transmission distance
    Standard screw 9 m (in water or air)
    Deviation measurement range and accuracy
    0~180°±0.3°(static), ±0.5°(dynamic)
    Gamma-ray range
    0~512API
    Gamma output interval
    1~255s Programmable,step  1s
    Gamma azimuth zonal resolution
    1°,precision
    Storage Capacity
    64Mbit
    operation rotate speed
    30~450rpm
    continuous working period
    ≥200h
    The instrument outside diameter
    Φ172mm
    Gamma sensor position
    Distance from the drill bit < 600mm
    Deviation sensor position
    Distance from the drill bit < 600mm
     

    Enviromental Parameters


    Operating temperature
    0~150℃
    Biggest pressure
    120Mpa/17400Psi



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