Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate
2008-02-12
2010-10-26
Shrivastav, Brij B. (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using well logging device
C324S314000
Reexamination Certificate
active
07821260
ABSTRACT:
NMR spin echo signals are acquired downhole. An independent component analysis is used to determine parameters of a parametric model of the T2distribution whose output matches the measurements. The model parameters are telemetered to the surface where the properties of the formation are reconstructed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
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Hamdan Mouin
Kruspe Thomas
Rottengatter Peter
Thern Holger F.
Baker Hughes Incorporated
Fetzner Tiffany A
Mossman Kumar & Tyler PC
Shrivastav Brij B.
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