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Ferromagnetic inclinometer IFM


The tool has the following modifications by max operating temperature T max and upper value of borehole hydrostatic pressure Pmax :
  by temperature: 120, 150, 175, 200 °С,
  by pressure: 80, 100, 120, 140 МPа.
Designed for continuous measurement of azimuth, vertical deviation angle and tool rotation angle for the purpose of well path design. 

Used for open hole logging including azimuth, vertical deviation angle and tool rotation angle measurement and also for cased hole logging including vertical deviation angle measurement; the tool operates with a three-conductor carrying logging cable up to 7000m long and log recorders that provide for command transfer and data receipt in “Manchester-2” code. 

 determination of true depths of productive formations occurrence;
 borehole axis direction control while drilling.

 Measured parameters Range Error 
Vertical deviation angle 0÷120° ±12′
Azimuth 0÷360° ±5° at 1°<DEVI<3°
±2° at 3°<DEVI<6°
±1.5° at 6°<DEVI<120°
Tool rotation angle 0÷360° ±3° at -3°<DEVI<3°
 General specifications
Tool length, mm 1600/1840 not more than
Tool diameter, mm 76 not more than
Tool weight, kg 15/30 not more than
Power supply:
supply voltage, V
supply frequency, Hz


Borehole diameter, not less mm 97 not less
Logging speed, m/hr 800

not more than

Combinability bottom/feed-through  
Location in the borehole free