Method for compensating drill pipe and near-borehole effect...

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – By magnetic means

Reexamination Certificate

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Details

C324S338000

Reexamination Certificate

active

08008919

ABSTRACT:
Transient measurements made at two spaced apart receivers responsive to separate activation of two transmitters symmetrically disposed about the two receivers. The transmitters and receivers are on an instrument having a conductive body induces currents in the earth formation. The effect of the conductive body is removed by using deconvolving the signal at one receiver using the measured signal at the other receiver. The symmetric transmitter configuration also enables compensation for receiver differences.

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