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

Claim 6:
7. A computing device for measuring properties of a formation or well structure, comprising:
a microprocessor; and
memory including instructions that, when executed by the microprocessor, cause the computing device to:
receive a first measurement of gamma rays from the formation or well structure via a detector during a first period of time;
receive a second measurement of gamma rays from the formation or well structure via the detector during a second period of time;
remove the second measurement from the first measurement to produce an inelastic spectrum;
determine a spectral slope from the inelastic spectrum;
determine a scaling factor based on the spectral slope;
determine a spectral shape associated with the detector;
determine a detector-induced spectrum by applying the scaling factor to the spectral shape; and
remove 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.