SYSTEM AND METHOD FOR SURVEYING A SUBSURFACE OF THE EARTH

SYSTEM AND METHOD FOR SURVEYING A SUBSURFACE OF THE EARTH

A first electrode (135; 140; 610, 6I5; 1100) is located at a borehole (115; 600-602; 700, 705; 805, 810; 900, 910; 1015, 1020) and a second electrode (170, 171; 180, 181; 625, 630; 710, 715; 815, 820; 915, 920; 1000, 1005, 1010; 1115, 1116) is located at the surface (105; 620; 1005) of the earth. At...

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Bibliographische Detailangaben
1. Verfasser: HIBBS, ANDREW, D
Format: Patent
Sprache:eng ; fre
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Zusammenfassung:A first electrode (135; 140; 610, 6I5; 1100) is located at a borehole (115; 600-602; 700, 705; 805, 810; 900, 910; 1015, 1020) and a second electrode (170, 171; 180, 181; 625, 630; 710, 715; 815, 820; 915, 920; 1000, 1005, 1010; 1115, 1116) is located at the surface (105; 620; 1005) of the earth. At least one transmitter (145; 1025) is selectively connected to one or both of the first (135; 140; 610, 615; 1100) and second electrodes (170, 171; 180, 181; 625, 630; 710, 715; 815, 820; 915, 920; 1000, 1005, 1010; 1115, 1116) to cause current to flow within a subsurface of the earth. L'invention concerne une première électrode (135; 140; 610, 615; 1100) située au niveau d'un trou de forage (115; 600-602; 700, 705; 805, 810; 900, 910; 1015, 1020) et une seconde électrode (170, 171; 180, 181; 625, 630; 710, 715; 815, 820; 915, 920; 1000, 1005, 1010; 1115, 1116) située au niveau de la surface (105; 620; 1005) de la terre. Au moins un émetteur (145; 1025) est sélectivement connecté à la première électrode (135; 140; 610, 615; 1100) et/ou à la seconde électrode (170, 171; 180, 181; 625, 630; 710, 715; 815, 820; 915, 920; 1000, 1005, 1010; 1115, 1116) afin de provoquer une circulation de courant au sein d'une subsurface de la terre.