SET OF THREE-MEMBER DEVICES FOR ELECTRIC PROSPECTING Russian patent published in 1998 - IPC

FIELD: electric prospecting with drilling and surface operation while searching for reservoirs filled with hydrocarbons, search for other mineral resources, geological mapping and other geological studies. SUBSTANCE: in each device of set distance between measurement electrodes, distance between of exciting electrode and measurement electrode closest to it and distance between exciting electrodes are terms of series L_r= L_r-1+L_r-2, where r=3, 4, ..., L₁= G=G; L_r= 2G=2G and G is base of series. Similar terms of series may be employed to select distances. Complete set of devices may be formed by several sets. EFFECT: improved operational reliability of set. 2 cl, 1 dwg