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Ferromagnetic memory inclinometer IFM-A


The tool has the following modifications by max operating temperature T max and upper value of borehole hydrostatic pressure Pmax :
  T max =90 °C, Pmax= 80 MPa;
  T max =120 °C, Pmax= 80 MPa;
Designed for continuous measurement of azimuth, vertical deviation angle and tool rotation angle relative to magnetic meridian andapsidal hole face. 

Used for directional survey of nearly horizontal and horizontal open oil and gas wells filled with nonmagnetic mud.

 well coordinates determination;
borehole profiling etc.

The sonde station contains three-axis magnetometer and three-axis dipmeter with accelerometer converters application.   

 Measured parameters Range Error
Azimuth measurement range 0÷360° ±5° at 1°<DEVI<3°
±2° at 3°<DEVI<6°
±1.5° at 6°<DEVI<120°
Vertical deviation angle measurement range 0÷180° ±12´
Tool rotation angle 0÷360° ±5° at 1°<DEVI<3°
±2° at 3°<DEVI<6°
±1.5° at 6°<DEVI<120°


 General specifications
Tool length, mm 3500 not more than
Tool diameter, mm 90 not more than
Tool weight, kg 100 not more than
Power supply, self-contained, V 12  
Ambient operating temperature range, °C from -10 to +120 not more than
Max operating pressure,MPa 80 not more than
Borehole diameter, mm 120÷400  
Logging speed, m/ hr 800  
Operating time in memory mode,  hours in record mode 10 not less than
Records frequency, pollings per sec 1  
Location on the drilling tool