JCX-3 Three-Component BoreholeMagnetometer

• Used for magnetic exploration in wells. Suitable for use in     drilling with diameter greater than φ46mm for measurement of horizontal     component X, Y and vertical component Z in magnetic field. Can also be     used as high-precision inclinometer with non-magnetic hole or far away     from magnetic well. It can solve the following issues.

• Verify ground magnetic     abnormality, and determine the nature of abnormality.

• Combined with ground magnetic     survey for three-dimensional interpretation.

• High-precision measurement of     deviation azimuth and inclination.

• Instruct the drilling arrangement,     and guide the drilling.

• Determine the depth and direction     of blind ore.

• Determination of ore body     position, extension, range and thickness of exposed ores.

• Determination of the occurrence of     ore bodies.

• Searching of magnetic ore     associated ore deposits.

System component

Maininstrument, well logging probe, winch and cable, software

TechnicalSpecifications

• Measuring Range: -99999nT~+99999nT    

• Difference of readings at the     opposite orientation for X, Y magneto sensors ≤400nT

• Difference of readings at the     opposite orientation for Z magneto sensor ≤ 300nT

• Inclination Measuring Range:     0~45°, Error: smaller than 0.2°

• Azimuth      Measuring Range: 0~360°, Error: smaller than 2° (inclination ≥3°)

• Linearity ≤2‰

• Digital Output, Update Rate ≥ 3     times / sec

• Probe Outline Dimension:     φ40×1400mm

• Measured Well Depth ≤ 2000m

• Probe Pressure-Proof ≤ 150kg/cm2

• Dedicated Cable: 4-core Armed     Cable

• Instrument Working Power Supply:     DC12V/200mA

• Working Environment: Temperature:     0~70°; Humidity: 90% (40℃)

• Master Instrument Outline     Dimension: 305×200×228 mm

• Weight: 4kg: