Borehole geophysical logging methods are used to measure physical properties (Porosity, Specific Yield, and Hydraulic Conductivity) of aquifer, fluid properties, and the integrity of well construction materials.
Lithology and Thickness
- ELOG Combination Gamma, SP, SPR, 16-64-inch normal resistivity tool
- Spectral Gamma Ray
Hydraulic Conductivity estimates and vertical flow (within borehole)
- ELOG Combination gamma, SP, SPR,16-64-inch normal resistivity Plus SP & SPR.
- Fluid temperature and conductivity.
Aquifer Properties including Porosity, Specific Yield, and Hydraulic Conductivity (in formation)
- BMR, Borehole Magnetic Resonance
- Induced Polarization
Borehole Diameter
- 3-arm caliper
Deviation (borehole verticality)
- Verticality / Natural Gamma
- Acoustic televiewer
- Optical televiewer
Porosity
- BMR, Borehole Magnetic Resonance
- NEU, Neutron
- FWS, Sonic porosity
- DEN, Density porosity calculated from in-situ compensated density
Surface Equipment
- 1000m/2000m Winch
- The standard unit for truck-mounted operations in deep boreholes, the 2000m
winch includes an integral depth wheel and an automatic level wind