is designed to measure the apparent resistivity with simultaneous forced probe configuration switching over (lateral sonde-normal sonde) and to measure rock spontaneous potential.
The measurements are performed via environmental excitation by alternating electric field (electrodes A, B) and potential drop measurement (at M, N electrodes). The spontaneous potential is measured when the external electric field is turned off.
KSP-GP-43 tool is to be run with one-core and triple-core logging cable.
|
Sonde formula: normal sonde lateral sonde |
N 1,0 M 0,1 A А 1,0 M 0,1 N |
|
Apparent resistivity measurements range, Ohm·m |
0 ÷ 50000 |
|
Spontaneous potential measurements range, mV |
-2500 ÷ 2500 |
|
Basic relative measurements error, % |
up to 5 |
|
Output pulse, Manchester-2 code: amplitude, V rate, kbaud |
2÷4 20 |
|
Output measure point (between N and M), mm: normal sonde lateral sonde |
195 498 |
|
Max. hydrostatic pressure, MPa |
20 |
|
Max. operating temperature, °С |
45 |
|
Tool dimensions, mm: diameter length (without a probe) length (including a probe) |
43/48 970 3000 |