Induction logging memory tool 5IK-A

The tool has the following modifications by max operating temperature T _max and upper value of borehole hydrostatic pressure P_max :
  T _max =90 °C, P_max= 80 MPa;
  T _max =120 °C, P_max= 80 MPa;
Designed for induction logging (without usage of logging cable) using 5 sondes that have different depth of penetration with simultaneous recording of apparent conductivity active and reactive components for every sonde. Self-polarization curve (SP) is also recorded. 

Used for logging of nearly horizontal and horizontal sections of open oil and gas holes filled with any fluid without magnetic additive compounds.

Applications:
 identification of electrically homogeneous formations and formations with invaded zone, invasion type identification;
 determination of competent part of the formation and flushed zone resistivity, and flushed zone depth estimation;
 longitudinal resistivity determination and evaluation of vertical anisotropy factor of impermeable formations and formations with shallow invaded zone in horizontal wells;
 permeable intervals identification, saturation character and oil and gas saturation evaluation.

5IK-A tool contains five three-coil IL sondes –  3I0.3, 3I0.5, 3I0.85, 3I1.26, 3I2.05. All sondes have common receiving coil, common measuring channel and operate at the same frequency of 100 kHz. It is possible to use Ø124 mm, Ø190 mm standoffs.