Hydrological Borehole Logging System Geophysical Downhole Logging Equipment Resistivity Logger Borehole Logging System Water Well Logging Instrument
Description
The Natural Gamma & Electrical Resistivity Probe measures natural gamma,16" Normal & 64"Normal Resistivity,Spontaneous Potential (SP),Single Point Resistance(SPR),Temperature. Users can log resistivity profiles with different depths of investigation and gain information about permeability, porosity, water quality and geological formation properties
Operating Conditions:Uncased;Borehole Fluid:Water or Mud.
Applications
Facies changes;Quantitative geological formation properties
Identification of hydrostratigraphic units
Aquifer thickness;Water quality
Identification of hydrocarbon intervals
Detection of ore body zones;Bed boundary analysis
| 1. Instrument Power Supply:DC200V±20%,Electricity≤40mA |
| 2. Electrode Array: AM 16";AM 64" |
| 3. Natural Gamma Sensor:NaI Crystal |
| 4. Temperature Sensor::Platinum Resistance (pt100) |
| 5. Measuring Range: |
| resistivity:1~4000Ωm(customize10000Ωm) |
| Spontaneous Potential (SP):±1200mV |
| Natural Gamma:0~32768cps |
| Temperature Range: 0ºC~100ºC, Resolution:0.025ºC |
| 6. Measurement Accuracy:2%(10~4000Ωm)or ±1Ωm |
| 7. Environmental: Temperature<=80ºC;Pressure≤20MPa |
| 8. Signal: Bipolar Codes |
Resistivity logging
Resistivity logging is the measurement of the resistivity of rocks or sediments
Imaging logging
Imaging logging uses a rotating sensor to measure the acoustic impedance of the entire wellbore. This can be used to determine the existence and orientation of fractures, as well as the dip angle of the formation.
Density logging
Density logging is to measure the bulk density of a formation by gamma ray counting after Compton scattering and photoelectric effects are bombarded by a radioactive source. This bulk density can be used to calculate porosity.
Spontaneous potential logging
Spontaneous potential measures the difference of spontaneous potential without current. It was the first wireline logging.
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