Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Patent
1986-09-22
1988-03-08
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
324341, G01V 318, G01V 330
Patent
active
047301619
ABSTRACT:
The present invention is a well logging method for determining the water saturation of an earth formation and the water's resistivity. Electromagnetic energy is transmitted into the earthen formation from a borehole traversing the earth formation. The electromagnetic energy is transmitted at two different frequencies within a range of frequency from 10 MHz to 200 MHz. Electromagnetic energies are received in the borehole from the earth formation. A phase difference and amplitude ratio for each transmitting frequency is derived from the received electromagnetic energy. The water resistivity and water saturation of the earth formation are derived from the derived phase differences and the amplitude ratios.
REFERENCES:
patent: 4077003 (1978-02-01), Rau
Cox Percy T.
Simpson Richard S.
Sims Jackie C.
Eisenzopf Reinhard J.
Gillespie Ronald G.
Kulason Robert A.
O'Loughlin James J.
Snow Walter E.
LandOfFree
Dual frequency well logging system for determining the water res does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual frequency well logging system for determining the water res, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual frequency well logging system for determining the water res will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-232735