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US 2014/0176946 A1Published application
Methods and Apparatus for Downhole Fluid Analysis
AssigneeSchlumberger Technology Corporation
InventorsHisatoshi Matsumoto, Hua Chen, Akira Kamiya, Stephane Vannuffelen
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Abstract
Methods and apparatus for downhole fluid analysis are disclosed. An example method includes obtaining first measurements from a first spectrometer and a second spectrometer when a light source is on, obtaining second measurements from the first spectrometer and the second spectrometer when the light source is off and calibrating the first spectrometer based on the first measurements and the second measurements.
Claims20
A method, comprising:
- obtaining first measurements from a first spectrometer and a second spectrometer when a light source is on;
- obtaining second measurements from the first spectrometer and the second spectrometer when the light source is off;
- and
- calibrating the first spectrometer based on the first measurements and the second measurements.
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An apparatus, comprising:
- a first fluid analysis apparatus;
- a second fluid analysis apparatus;
- a light source;
- and
- a processor to determine a temperature coefficient value based on measurements received from the first and second fluid analysis apparatus, the measurements received when the light source is on and when the light source is off.
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Dependencies are inferred from the claim text.