Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate
2008-04-08
2010-12-14
Shrivastav, Brij B (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using well logging device
Reexamination Certificate
active
07852074
ABSTRACT:
A method and apparatus useful to determine characteristics of fluid flow, such as fluid holdup and flow velocity. The apparatus comprises a flow tube, a permanent magnet, a first set of coils, and a second set of coils. The first set of coils creates a radio frequency magnetic field within the flow tube with a series of refocusing pulses. The second set of coils encodes velocity information onto the fluid molecules using rotating frame zeugmatography that is later decoded and used to estimate the fluid flow velocity.
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Baker Hughes Incorporated
Bracewell & Giuliani LLP
Shrivastav Brij B
Vargas Dixomara
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