It is a method of measuring the resistivity of rock (including the fluid in it) by using power supply electrodes and measuring electrodes arranged at different positions in a borehole. The commonly used three resistivity logging series are: deep lateral, shallow lateral and micro lateral resistivity logging.
1. Rock mineral composition
2. The chemical composition, concentration and temperature of the electrolyte in the formation water within the rock porosity.
3. Rock porosity
4. The oil saturation of the rock.
|Power||AC 220V ± 20%, 50Hz, 20W|
|Temperature||-20 ℃ ~ + 40 ℃, humidity≤90%|
|AB power supply||6 ~ 60V, 0 ~ 200mA, AC square wave.|
|Applicable electrode system||A1.6M 0.4N|
|Measuring range of apparent resistivity||1-2000Ωm|
|Measurement accuracy of apparent resistivity||1% (scale)|
|Natural potential measurement range||± 1200mv|
|Natural potential measurement accuracy||1%|
|Signal output||USB interface|
|Depth measurement||0 ～ 9999.99 meters|
|Depth measurement accuracy||better than 0.1%|
|Speed measurement range||0 ～ 9999m / h|
|Speed measurement accuracy||better than 5%|