Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Reexamination Certificate
2006-12-14
2010-02-02
LeDynh, Bot L (Department: 2858)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
C324S343000
Reexamination Certificate
active
07656160
ABSTRACT:
A system and method to determine earth formation properties by positioning a logging tool within a wellbore in the earth formation, the logging tool having a tool rotation axis and a first, a second, and a third tilted transmitter coil, and a tilted receiver coil; rotating the logging tool about the tool rotation axis; energizing each transmitter coil; measuring a coupling signal between each transmitter coil and the receiver coil for a plurality of angles of rotation; determining a coupling tensor; and determining the earth formation properties using the coupling tensor.
REFERENCES:
patent: 4968940 (1990-11-01), Clark et al.
patent: 5345179 (1994-09-01), Habashy et al.
patent: 5508616 (1996-04-01), Sato et al.
patent: 6476609 (2002-11-01), Bittar
patent: 7091877 (2006-08-01), Barber et al.
patent: 7268556 (2007-09-01), Fanini et al.
patent: 2004/0113609 (2004-06-01), Homan et al.
patent: 2069878 (1996-11-01), None
patent: 2107313 (1998-03-01), None
patent: 960701 (1981-04-01), None
patent: 998995 (1983-02-01), None
VF Machetin, et al., “TEMP-a New Dual-Electromagnetic and Laterolog Apparatus-Technological Complex,” 13th European Formation Evaluation Symposium Transactions, Budapest Chapter, SPWLA, Paper K (1990).
VA Korolev et al., “Electromagnetic Logging by a Lateral Magnetic Dipole. Perspectives of Electromagnetic Well Scanning,” Geofizika Scientific-Production Company, Russia (1995).
“Double Electromagnetic and Lateral Logging,” Methodical Handbook, Moscow, Nedra, Russian (1991).
Legendre Emmanuel
Li Qiming
Seydoux Jean
Taherian Reza
Yang Jian
Echols Brigitte
Fonseca Darla
Gaudier Dale
LeDynh Bot L
Schlumberger Technology Corporation
LandOfFree
Determining properties of earth formations using the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Determining properties of earth formations using the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining properties of earth formations using the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4185937