Adaptive detection of abnormal channels for subsurface optical measurements
AssigneeHalliburton Energy Services, Inc.
InventorsZhonghuan Chen, Bin Dai, Christopher Michael Jones, Wei Zhang
Life of this patent
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Abstract
Light from a light source that has interacted with a sample of downhole fluid provided in a downhole optical tool is sequentially passed through a plurality of groups of light filters, each of the groups of light filters including of one or more light filters, to generate a data set for each of the groups of light filters, also referred to as a simultaneous channel group. The data generated for each of the simultaneous channel groups is then analyzed to determine if the data from that simultaneous channel groups is effective in providing information useful for the analysis of the sample of downhole fluid.
Claims20
A method comprising:
- performing an analysis of a data set associated with any of a plurality of channel groups determined to be effective in providing information regarding a sample of a fluid,
- wherein evaluating an effectiveness of the information provided by the data set associated with each of the plurality of channel groups includes:
- determining an effectiveness value for the channel group based on a dispersion of the data set associated with the channel group;
- comparing the effectiveness value determined for the channel group to an effectiveness threshold value;
- classifying the channel group as effective in providing information regarding the sample of the fluid when the effectiveness value is greater than or equal to an effectiveness threshold value, and
- performing the analysis of the data set including only data associated with any of the channel groups determined to be effective in providing information regarding the sample of the fluid.
An apparatus comprising:
- a computing device including a processor configured to:
- perform an analysis of a data set associated with any of a plurality of channel groups determined to be effective in providing information regarding a sample of a fluid,
- wherein evaluating an effectiveness of the information provided by the data set associated with each of the plurality of channel groups includes:
- determining an effectiveness value for the channel group based on a dispersion of the data set associated with the channel group;
- comparing the effectiveness value determined for the channel group to an effectiveness threshold value;
- classifying the channel group as effective in providing information regarding the sample of the fluid when the effectiveness value is greater than or equal to an effectiveness threshold value, and
- performing the analysis of the data set including only data set associated with any of the channel groups determined to be effective in providing information regarding the sample of the fluid.
A non-transitory computer readable medium storing machine readable instructions that are executable by a processor to cause the processor to perform operations comprising:
- performing an analysis of a data set associated with any of a plurality of channel groups determined to be effective in providing information regarding a sample of a fluid,
- wherein evaluating an effectiveness of the information provided by the data set associated with each of the plurality of channel groups includes:
- determining an effectiveness value for the channel group based on a dispersion of the data set associated with the channel group;
- comparing the effectiveness value determined for the channel group to an effectiveness threshold value;
- classifying the channel group as effective in providing information regarding the sample of the fluid when the effectiveness value is greater than or equal to an effectiveness threshold value, and
- performing the analysis of the data set associated with any of the channel groups determined to be effective in providing information regarding the sample of the fluid.
Dependencies are inferred from the claim text.