well logging unit GJCX-1 High-precision Tri-Component Borehole Magnetometer
Applicati*** and Feature
It is mainly used for borehole magnetic prospecting. It is applicable for the measurements of horizontal components (X, Y) and vertical component (Z) of the magnetic field in the borehole greater than φ46mm. In addition, it is used as the high-precision teleclinometer without magnetic hole or away from the magnetic well. It can solve the following problems:
Validate the ground magnetic anomaly and judge the anomaly nature.
Coordinate the ground magnetic survey for 3D interpretation.
Measure the deflection direction and dip angle in a high precision manner.
Direct the drilling layout and well drilling.
Confirm the depth and direction of blind ore.
Confirm the discovery orebody position, extension, range and thickness.
Confirm the occurrence of orebody.
Search the associated deposit of attractive mineral.
Main Technical Specificati***
Measuring range: -99999nT~+99999nT
Difference of readings at the opposite orientation of X, Ymagneto sensitive element ≤100nT
Difference of readings at the opposite orientation of Z magneto sensitive element ≤50nT
Measuring range of dip angle: 0~45°, error<0.1°
Measuring range of azimuth: 0~360°, error<2° (dip angle≥1°)
Linearity≤2‰
Measuring mode: Point measurement (frequency: Once/75s )
Serial port R232 tran***ission data
Downhole instrument probe OD: φ42mm
Measured well depth≤2000m
Probe withstanding pressure≤200kg/cm2
Instrument power supply: AC220V&plu***n;10%, 50Hz&plu***n;10%
Operational environment: Temperature: -10°~70°, temperature: 90% (40°C)
Overall dimension of instrument: φ42×2600mm, weight: 10kg