Optics: measuring and testing – Refraction testing – Refractive rod engages specimen
Reexamination Certificate
2007-12-14
2010-12-14
Nguyen, Sang (Department: 2886)
Optics: measuring and testing
Refraction testing
Refractive rod engages specimen
C356S436000, C250S269100
Reexamination Certificate
active
07852468
ABSTRACT:
A downhole refractometer apparatus and method include a light source, an optical fiber that receives light emitted from the light source and a fluid cell that receives a downhole fluid. A metalloid interface member is disposed to provide an interface with the downhole fluid in the fluid cell, and a light detecting device detects a light reaction at the metalloid interface member, the downhole fluid property being estimable at least in part based on the light reaction.
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Baker Hughes Incorporated
Cantor & Colburn LLP
Nguyen Sang
LandOfFree
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