Density derived from spectra of natural radioactivity
AssigneeBaker Hughes Incorporated
InventorMikhail A. Fedorin
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to borehole logging methods and apparatuses for estimating at least one parameter of interest of a volume of interest of an earth formation using nuclear radiation. The method may include obtaining an energy spectrum; using at least one processor to remove at least one energy spectrum component using a method selected from a spectral decomposition and spectral windows method; and estimating the concentration of at least one radionuclide using the energy spectrum after the removal. The estimation of the at least one radionuclide concentration may include using the other of the method selected form the removal. The apparatus may include at least one processor configured to perform the method.
Claims11
A method of estimating a concentration for at least one radionuclide in an earth formation, comprising:
- obtaining an energy spectrum;
- using at least one processor to remove at least one energy spectrum component from the energy spectrum using a method selected from (i) a spectral decomposition and (ii) a spectral windows method;
- and
- estimating the at least one radionuclide concentration using the energy spectrum after the removal.
A computer-readable medium product having instructions thereon that, when executed, cause at least one processor to perform a method, the method comprising:
- obtaining an energy spectrum;
- using the at least one processor to remove at least one energy spectrum component from the energy spectrum using a method selected from (i) a spectral decomposition and (ii) a spectral windows method;
- and
- estimating the at least one radionuclide concentration using the energy spectrum after the removal.
Dependencies are inferred from the claim text.