Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2006-04-18
2006-04-18
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
C702S006000, C324S328000, C324S329000, C324S330000, C324S331000, C324S332000, C324S333000, C324S334000, C324S335000, C324S336000, C324S337000, C324S338000, C324S339000, C324S340000, C324S341000, C324S342000, C324S343000, C324S344000, C324S345000, C324S346000
Reexamination Certificate
active
07031839
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: 6636045 (2003-10-01), Tabarovsky et al.
Bespalov Alexandre N.
Forgang Stanislav W.
Rabinovich Michael B.
Tabarovsky Leonty A.
Baker Hughes Incorporated
Barlow John
Kundu Sujoy
Madan Mossman & Sriram P.C.
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