Wide liquid temperature range fluids for pressure balancing in logging tools
AssigneeBaker Hughes Incorporated
InventorRocco DiFoggio
Life of this patent
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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.
Claims20
An apparatus for performing a measurement in a borehole penetrating the earth, the apparatus comprising:
- 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.
A method for performing a measurement in a borehole penetrating the earth, the method comprising:
- conveying a logging tool through the borehole, the logging tool comprising an enclosed instrument cell configured to perform the measurement wherein a fill liquid that remains in a liquid state and is nonflammable from 20° C. to 300° C. is disposed in the cell;
- and
- performing the measurement with the instrument cell.
An apparatus for performing a measurement, the apparatus comprising:
- an enclosed instrument cell 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.
Dependencies are inferred from the claim text.