Products

Borehole Logging Systems

Induction Conductivity

H3I-453
H4I-453
HI-381
HI-453, HI-453E
HI-453F
HII-383
HII-453

Magnetic Susceptibility

HM-453, HM-383, HM-320
HM-453E, HM-383E
HM-100
HMM-453
HMG-453

Combined probes

HMI-453, HMI-453E

Other probes

HC-380
HC-380C
HC-453, HC-453a
HC-454
HRT-381
HF-380
HGSPR-380
HF-500
HN-453
HFN-381
HGG-453
HDG-453
HLG-382

Other products

BHC-200
Geo set HDS-600
Portable Winches
Portable Logging System
Cameras

Accessories

AH-30, AH-150

Logging instruments

Dual Magnetic Susceptibility Probe HMM-453

The HMM-453 probe is designed for measurement of magnetic susceptibility of rocks in borehole profile. First channel of is used for measurement in complex of sedimentary rocks, igneous or metamorphic rocks up to low magnetite rocks. The susceptibility is an excellent indicator of lithology.
Second channel is designed for measurement in complex of igneous or metamorphic rocks up to high magnetite rocks. The measuring range has been chosen so as to identify layers containing magnetite (0.005 – 100%). The main use of the probe is for prospection on deposits of Fe minerals – magnetite, pyrrhotite and hematite. The data are to be used for quantitative interpretation of the magnetic components in the rocks and estimation of the thickness of layers. The data can directly be used for economic evaluation of the deposit.
In a complex of sedimentary rocks the probe provide informative data only.
The probes response is practically instantaneous (<0.5s).

Dual Magnetic Susceptibility Probe HMM-453

Probe Parameters

Diameter 45 mm
Length 125 cm
Weight 4.5 kg
Max. Working Temperature/Pressure 75°C/20 MPa
Min. No. of Cable Conductors 2
Supply Voltage Range 30 – 45 VDC
Max./Nominal Current Consumption 100/40 mADC
Supply Voltage Polarity + on central cond.
  − on probe casing

Measuring Parameters

Sensor four coil system
Intercoil Spacing 1. channel 25 cm
Intercoil Spacing 2. channel 30 cm
Operating Frequency ≈2 kHz
Communication (negative pulse) 0 – 20 000 cps
Measuring range 10−5 – 0.5 SI units
  10−4 – 2 SI units
Accuracy < 3% F.S.
Zero Drift < 2.10−5 SI units/10°C
  < 1.10−4 SI units/10°C

Special orders

Probes of diameters 32 and 38 mm can also be manufactured upon special order. Their measuring parameters are similar to those stated above.

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