| CPC G01V 5/101 (2013.01) | 20 Claims |
|
1. A method for correcting elemental yields obtained from gamma ray spectra, the method comprising:
acquiring a plurality of elemental yields obtained at a plurality of time intervals using a gamma ray spectroscopy downhole tool;
summing a first elemental yield of the plurality of elemental yields, the first elemental yield obtained at a first time interval of the plurality of time intervals, with an accumulated negative yield to compute a corrected yield, wherein the accumulated negative yield is set based on a second elemental yield obtained at a second time interval of the plurality of time intervals;
resetting the accumulated negative yield to a minimum of zero and the computed corrected yield;
resetting the corrected yield to a maximum of zero and the computed corrected yield; and
repeating the summing, the resetting of the accumulated negative yield, and the resetting of the corrected yield, for a third elemental yield of the acquired plurality of elemental yields to compute a corresponding plurality of corrected elemental yields.
|