Purpose: downhole measurements of apparent resistivity (AR)
of rocks (by two logging microsondes & lateral sonde),
and measurements of borehole diameter (D).
Must to use with system control block "Б111"

1.AR interval, ohm-meters
-for microsondes 0.2 - 500
-for lateral sonde: 0.2 - 500
2.D-measure interval, mm 100 - 360
3.The error bound, p.c. (%)
-for microsondes: +-[5.0+0.1((rmax/r)-1)]
where: rmax - max measurement, ohm
r - real measurement
-for lateral sonde: +-10
-for D-measure: +- 5
4.Diameter of device no more 75 mm
5.Device length no more 3.5 Meters
6.The investigation depth, mm
-for microsondes: 50
-for lateral sonde: 80
7.Device weight no more 70 Kg
8.Max environmental temperature 120C (175C)
9.Max environmental pressure 100 (120) MPa ?
10.Time of using in Max environmental temperature
no less then 8 hours (3 hours)
11.The measurement velocity no more 800 M/h