Apparatus and methods of controlling recordation of resistivity-related readings in determining formation resistivity
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United States of America Patent
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Jan 19, 2016
Grant Date -
Feb 28, 2013
app pub date -
Aug 29, 2011
filing date -
Aug 29, 2011
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Abstract
In various embodiments, apparatus and methods are provided to determine formation resistivity associated with a well. Measurements taken using sub-arrays of a tool at different distances of investigation can be used to determine formation resistivity, where the sub-arrays are arranged to make azimuthal related measurements. Separations readings related to resistivity can be generated from signals received from different directions and can be analyzed to characterize validity of a measurement reading. Additional apparatus, systems, and methods are disclosed.
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