Research and production enterprise that creates special and unique methods and technologies for geophysical research of oil and gas, ore and coal wells

  • +7 (34767) 7-19-00


Designed for measuring apparent electrical resistivity (ρa) with simultaneous and forced switching of the sondes configuration (normal sonde-lateral sonde), as well as the spontaneous potential (SP) of rocks.

The electrical resistivity is measured by the method of excitation of the medium by an alternating electric field by AB electrodes and by measuring the voltage drop across the electrodes MN. SP measurement is performed when the external electric field is turned off.

The downhole tool is to be run with VULCAN V3 log recorder or similar.

The tool operates with one-core (SP record restriction) or three-core logging cable.

The dimensions of the sonde are made upon request.


Sonde spacing:
 - normal sonde
 - lateral sonde

N 1,0 M 0,1 A 
А 1,0 M 0,1 N
ρa measurement range, Ohm·m1-5000
SP measurement range, mV± 1000
Measurement main relative error, %5
Downhole tool supply voltage, V40-50
Rated supply current, mA120
Output codeManchester-2
Maximum operating temperature, °С80
Maximum hydrostatic pressure, MPa20
Diameter, mm43
Length, without sonde, mm900
Length with sonde, mm3000
Weight, kg10
Скачать карточку оборудованияDownload the equipment card