| 摘要 |
PROBLEM TO BE SOLVED: To execute a specific resistance tomography method or electric logging even in a bored hole wherein in-hole water is absent. SOLUTION: This electrode cable 1 inserted in the bored hole 2 has: a cable body 3 wherein a large number of conducting wires 6 are bundled; electrodes 4 installed to the cable body 3 at prescribed intervals apart from each other; and a plurality of electroconductive elastic bodies 5 radially spreading in the radial direction of the cable body 3 from the electrodes 4. The number of the bundled conducting wires 6 is equal to the number of the electrodes 4, and the electrode 4 is electrically conducted to the conducting wire 6 different from the other electrode 4. The electroconductive elastic body 5 spreads more largely than a hole diameter of the borehole 2, and contacts with the inner wall face 2a of the bored hole 2 while elastically deformed. COPYRIGHT: (C)2006,JPO&NCIPI |
