Method and a tool for electrically investigating a wall of a...

Details Method and a tool for electrically investigating a wall of a... Method and a tool for electrically investigating a wall of a...

2006-10-10

2006-10-10

Patidar, Jay M. (Department: 2862)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

Using electrode arrays, circuits, structure, or supports

C324S367000

Reexamination Certificate

active

07119544

ABSTRACT:
A method for electrically investigating a wall of a borehole in a geologic formation including injecting a current into the formation at a first position along the wall and returning the current at a second position along the wall, the formation current having a frequency below about 100 kHz, measuring a voltage in the formation between a third position and a fourth position along the wall, the third and fourth positions being located between the first and second positions, and determining an amplitude of a component of the voltage in phase with the current.

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patent: WO 01/77711 (2001-10-01), None

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