Measuring and testing – Borehole or drilling – Pressure measurement
Reexamination Certificate
2008-12-12
2011-11-08
Fitzgerald, John (Department: 2856)
Measuring and testing
Borehole or drilling
Pressure measurement
Reexamination Certificate
active
08051706
ABSTRACT:
An apparatus for performing a measurement in a borehole penetrating the earth, the apparatus including: a logging tool; an enclosed instrument cell disposed at the logging tool, the instrument cell being configured to perform the measurement; and a fill liquid disposed in the cell wherein the fill liquid remains in a liquid state and is nonflammable from 20° C. to 300° C.
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Baker Hughes Incorporated
Cantor & Colburn LLP
Fitzgerald John
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