Patent ID: 11906690
Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
Field: Measurement (Instruments)
Classification: CPC E  G | IPC G

Claim 0:
1. A method of measuring properties of a formation or well structure, comprising:
receiving a first measurement of gamma rays from the formation or well structure via a detector during a first period of time;
receiving a second measurement of gamma rays from the formation or well structure via the detector during a second period of time;
removing the second measurement from the first measurement to produce an inelastic spectrum;
determining a spectral slope from the inelastic spectrum;
determining a scaling factor based on the spectral slope;
determining a spectral shape associated with the detector;
determining a detector-induced spectrum by applying the scaling factor to the spectral shape; and
removing the detector-induced spectrum from the inelastic spectrum to produce a clean inelastic spectrum for use in evaluating properties of the formation or well structure.