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  5. Mount Sopris - Model QL40-DEN - ...

Mount Sopris - Model QL40-DEN -Compensated Dual Density & Caliper Probe

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The QL40-DEN Compensated Density & Caliper probe is a versatile wireline tool that can be used in a wide variety of logging applications. Measurements include SSD (short-spaced density), LSD (long-spaced density), Compensated density (dual density), and Caliper. The tool section is designed for operation in 2 to 12 inch (5 – 30 cm) boreholes. This dual detector, high resolution density tool is fully characterized, producing accurate near and far density measurements transformed into compensated density by use of stand-off / compensation algorithms. These algorithms produce effective data even when borehole rugosity and fractures adversely affect accuracy of uncompensated logs. The QL40-DEN tool is stackable within the Quick Link (QL) product line or it can be run as a standalone tool.

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PVC casing
  • Quantitative In-situ Density
  • Petrophysical Properties
  • Coal Quality and Delineation
  • Density Porosity
  • Caliper Borehole Volume

Borehole Fluid

  • Water
  • Mud
  • Dry

Casing

  • Uncased
  • PVC Borehole
  • Steel

Centralization

  • Required
  • Tool is De-Centralized
  • Real-time Quantitative Density
  • Improved thin bed resolution
  • Advanced compensation algorithms produce accurate density data even when borehole rugosity and fractures are obstacles
  • Easy to calibrate with Nylon and Aluminum calibration blocks.
  • Cesium-137 or Cobalt-60 source
  • Strong and reliable caliper, driven by gas-charged piston-type actuator
  • Operates on any standard wireline (Mono, 4, 7 conductor, or Coax)
  • Can be combined with other logging tools of the QL product line or operated as a standalone tool.
  • Short Spaced Source Detector (SSD): 20 cm (7.87”)
  • Long Spaced Source Detector (LSD): 35 cm (13.77”)
  • Density Range: 1 – 4 g/cc (depends on source)
  • Source: 100 – 250 mCurie Cs-137 or Co-60
  • Density Accuracy: 0.1 g/cc (100 mC Cs-137)
  • Density Resolution: 0.05 g/cc (100 mC Cs-137)
  • Caliper Maximum: 30 cm (12”)
  • Caliper Accuracy: 2.54 mm (0.1”)
  • Caliper Resolution: 0.64 mm (0.025”)
  • QL40DEN + QL40GR (Gamma): Exploration, Petrophysics Properties
  • QL40DEN + QL40GR (Gamma) + QL40DEV (Deviation) : Exploration, Borehole Deviation
  • QL40DEN + QL4SGR (Spectral Gamma) + QL40ELOG (Resistivity): The ‘Coal Suite’ tool set, Quantitative Analysis, Lithology, Porosity Estimates