Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Reexamination Certificate
2008-11-03
2011-11-01
Hollington, Jermele M (Department: 2858)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
Reexamination Certificate
active
08049507
ABSTRACT:
A transmitter on an instrument is used to induce currents in an earth formation when it is turned on or off. A Fourier transform is applied to transient measurements made in the receivers. A multifrequency focusing of the transformed data is used for applications like determination of a distance to an interface in the formation, controlling the drilling direction, determination of formation resistivities and formation strike directions.
REFERENCES:
patent: 5452761 (1995-09-01), Beard et al.
patent: 6574562 (2003-06-01), Tabarovsky et al.
patent: 7027922 (2006-04-01), Bespalov et al.
patent: 7031839 (2006-04-01), Tabarovsky et al.
patent: 7150316 (2006-12-01), Itskovich
patent: 7269515 (2007-09-01), Tabarovsky et al.
patent: 7359800 (2008-04-01), Rabinovich et al.
patent: 7392137 (2008-06-01), Tabarovsky et al.
patent: 2008/0030196 (2008-02-01), Bespalov et al.
patent: 2008/0215243 (2008-09-01), Rabinovich et al.
M. Rabinovich et al.; “Effect of Fractures on Multi-component and Multi-array Induction Logs”, SPWLA 45th Annual Logging Symposium, Paper UU, Jun. 6-9, 2004, pp. 1-16.
M. Rabinovich et al.; “Processing Multi-component Induction Data for Formation Dip and Anisotropy,” Petrophysics, vol. 47, No. 6, Dec. 2006, pp. 506-526.
Bespalov Alexandre N.
Forgang Stanislav W.
Georgi Daniel T.
Itskovich Gregory B.
Rabinovich Michael B.
Baker Hughes Incorporated
Hollington Jermele M
Mossman, Kumar & Tyler P.C.
Nguyen Tung X
LandOfFree
Transient EM for geosteering and LWD/wireline formation... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transient EM for geosteering and LWD/wireline formation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transient EM for geosteering and LWD/wireline formation... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4292611