Borehole Geophysics Techniques

  • Natural Gamma (ng)
  • Short Normal Resistivity
  • Long Normal Resistivity
  • Single Point Resistance (SPR)
  • Spontaneous Potential (SP)
  • Magnetic Susceptibility
  • Magnetic Field Intensity
  • Mechanical Caliper
  • Acoustic Caliper
  • Fluid Temperature
  • Fluid Conductivity
  • Electromagnetic Induction (Formation Conductivity)
  • Verticality/Deviation
  • Full Waveform Sonic
  • Cement Bond Log (CBL)
  • Vertical Seismic Profile (VSP)
  • Digital Video
  • Acoustic Televiewer
  • Optical Televiewer
  • Heat Pulse Flowmeter
  • Impeller Flowmeter
  • Water Quality/Discrete Depth Sampling
  • Gamma Density (γ−γ)*
  • Neutron Density*
  • P-S Suspension Logging
  • Cavity Sonar

Borehole Geophysics Applications

  • Formation Density Determination
  • Formation Porosity Determination
  • Sand Vs. Clay Layer Discrimination
  • Fracture Zone Identification
  • Fracture Zone Thickness And Dip Determination
  • Identification of Water-Bearing Zones
  • Measurement of Low Flow Water Movement
  • Measurement of High Flow Water Movement
  • Detection of Mineralization
  • Detection of Iron-Bearing Zones
  • Detection of Metal-Bearing Zones
  • Cement Bond/Grout Evaluation
  • Determination of Screened Intervals
  • Location of Casing Joints
  • Location of Screened Intervals
  • Water Quality Evaluation
  • Borehole Deviation Measurement
  • Borehole Deviation Measurement
  • Cavity Dimension Measurement
  • Detection of Bentonite Seals
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