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KAMBI Enterprises Inc. has been in the Canadian directional industry since 1999, with operations in the US since 2006. KAMBI supports ongoing equipment rentals and sales across both Canada and the US. Our operations are located in Calgary Alberta, Casper Wyoming and Fort Worth Texas.


The GRT is an advanced imaging laterolog device, incorporating four independent receiving electrodes to create an azimuthally-sensitive resistivity measurement. This capability allows the GRT to detect a nearby bed, determine whether it is conductive or resistive, and ascertain its direction and distance. Unlike competing tools, it is not necessary to rotate the GRT to obtain directionally-sensitive resistivity measurements. Directional resistivity data from the GRT can be graphically presented on a surface display (patents pending) in an enhanced version of the familiar compass rose drillers display typically employed in directional drilling. A continuously-updated borehole image showing the distance and direction to conductive/resistive anomalies enables the operator to intelligently direct the drilling process, without having to study resistivity logs.

  • Directional, horizontal and re-entry wells
  • Logging While Drilling (LWD), gamma, resistivity, temperature, vibration.
  • Logging While Tripping.
  • Operating temperature (150ºC) and pressure (20,000psi)
  • MWD Wireline retrievable design (minimum 2.25in I.D.)
  • Available real-time gamma measurements for LWD (focused gamma available) Downlink capability for selectable operating modes Proven software and firmware for efficient decoding
  • Adaptable tool configurations and programming flexibility
Types of Measurement LWD Average Resistivity Log (ResB), and
Real-time Resistivity Vector : Magnitude (ResV) + Angle
(ResA), and Gamma-ray or Focused Gamma
Average Resistivity 0.2 to 20,000 Ohn., +/-10% (worst case), +/-1.5% ( if
borehole is on gauge)
Thin Bed Resolution 17 cm / 6.75”
Maximum Operating Temperature 150ºC / 300ºF
Maximum Pressure 1400 Bar / 20,000 PSI
Detection Distance for Parallel Rock Formation Boundary >1 meter / 40 “ with >10:1 resistivity contrast
Depth of Investigation ( Invasion Tolerance) 0.64 meter / 25” diameter @ 50%
point on PGF curve
Internal Memory 400 hour (16.7 day) log including all resistivity, gamma and
diagnostic data.
Data are recorded every 4 seconds and can be downloaded
through a high-speed port.)
Power Supply Lithium 28VDC/3amp (21VDC/5amp available)
Battery Life 200 Hrs with one 28.8 VDC Battery Pack (50% duty cycle)
Serial ASCII +5VDC, 9600 Baud
Mechanical Specifications 6-1/2” Version
Tool Makeup Length 3.52 meters / 11.54 feet
Nominal Outside Diameter 165 mm / 6.5”
Wear Band Diameter 190 mm / 7.5”
Tool Connections API 4-1/2 IF PxB
Maximum Flow Rate 870 GPM @ 50 feet/sec flow rate
Max Bend Radius (max) Rotating 10º/100 feet, Sliding 15º/100 feet
Tool Face / Directional Package Orientation Muleshoe Helix built into upper box connection