Multi-frequency focusing for MWD resistivity tools

Details Multi-frequency focusing for MWD resistivity tools Multi-frequency focusing for MWD resistivity tools

2005-06-14

2005-06-14

Barlow, John (Department: 2863)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

C702S007000

Reexamination Certificate

active

06906521

ABSTRACT:
An induction logging tool is used on a MWD bottom hole assembly. Due to the finite, nonzero, conductivity of the mandrel, conventional multi frequency focusing (MFF) does not work. A correction is made to the induction logging data to give measurements simulating a perfectly conducting mandrel. MFF can then be applied to the corrected data to give formation resistivities.

REFERENCES:
patent: 5452761 (1995-09-01), Beard et al.
patent: 5666057 (1997-09-01), Beard et al.
patent: 5703773 (1997-12-01), Tabarovsky
patent: 5884227 (1999-03-01), Rabinovich et al.
patent: 6219619 (2001-04-01), Xiao et al.
patent: 6308136 (2001-10-01), Tabarovsky et al.
patent: 6400148 (2002-06-01), Meyer et al.
patent: 6466872 (2002-10-01), Kriegshauser et al.
patent: 6553314 (2003-04-01), Kriegshauser et al.
patent: 6574562 (2003-06-01), Tabarovsky
patent: 2002/0173913 (2002-11-01), Tabarovsky et al.
L.A. Tabarovsky et al.;Real time 2D inversion of induction logging data, Journal of Applied Geophysics 38 (1998) pp. 251-275, 11 Figs.

Affiliated with

Also associated with

Rating

Multi-frequency focusing for MWD resistivity tools does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-frequency focusing for MWD resistivity tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-frequency focusing for MWD resistivity tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3473529