G - Physics – 01 – V
Patent
G - Physics
01
V
324/9
G01V 3/36 (2006.01) G01V 3/30 (2006.01)
Patent
CA 1302498
ABSTRACT OF THE DISCLOSURE A method and apparatus for dielectric investigation in formations adjacent a well borehole is set forth. In the preferred and illustrated embodiment, a microwave transmitter forms an output signal which is transmitted by a transmitter antenna in contact with the sidewall, the propagation into the formation from the transmitter antenna, the signal being received at a receiving antenna, and further including means for making measurements of amplitude and phase angle. Such measurements are used to determine an equivalent circuit representative of the formation between the transmitter antenna and receiver antenna; the equivalent circuit encodes valuations of resistivity, dielectric constant and magnetic permeability of the formation material. Multiple measurements can be made in a given formation, and the sonde can be moved steadily or periodically to make measurements at selected locations. Formation electrical parameters in adjacent formations can then be determined.
600077
Haliburton Company
Swabey Ogilvy Renault
LandOfFree
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