Constraining spectral decomposition using peaks
AssigneeHalliburton Energy Services, Inc.
InventorsGregory Joseph Schmid, Jeffrey James Crawford
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Abstract
A method comprises obtaining, via one or more sensors positioned in a wellbore formed in a subsurface formation, a full spectrum of the subsurface formation at a first depth, wherein the full spectrum is decomposed into peak components and continuum background components. The method comprises identifying one or more elements based on the peak components. The method comprises modifying a generalized set of elemental standards to generate a constrained set of elemental standards based on the one or more elements. The method comprises performing a fitting of the full spectrum to the constrained set of elemental standards to determine an elemental composition at the first depth of the subsurface formation.
Claims20
A method comprising:
- obtaining, via one or more sensors positioned in a wellbore formed in a subsurface formation, a full spectrum of the subsurface formation at a first depth, wherein the full spectrum is decomposed into peak components and continuum background components;
- identifying one or more elements based on the peak components;
- modifying a generalized set of elemental standards to generate a constrained set of elemental standards based on the one or more elements;
- and
- performing a fitting of the full spectrum to the constrained set of elemental standards to determine an elemental composition at the first depth of the subsurface formation.
A system comprising:
- one or more sensors positioned in a wellbore formed in a subsurface formation;
- a processor;
- and
- a computer-readable medium having instructions stored thereon that are executable by the processor, the instructions including,
- instructions to obtain, via one or more sensors positioned in a wellbore formed in a subsurface formation, a full spectrum of the subsurface formation at a first depth, wherein the full spectrum is decomposed into peak components and continuum background components,
- instructions to identify one or more elements based on the peak components,
- instructions to modify a generalized set of elemental standards to generate a constrained set of elemental standards based on the one or more elements, and
- instructions to perform a fitting of the full spectrum to the constrained set of elemental standards to determine an elemental composition at the first depth of the subsurface formation.
A non-transitory, computer-readable medium having instructions stored thereon that are executable by a processor, the instructions comprising:
- instructions to obtain, via one or more sensors positioned in a wellbore formed in a subsurface formation, a full spectrum of the subsurface formation at a first depth, wherein the full spectrum is decomposed into peak components and continuum background components;
- instructions to identify one or more elements based on the peak components;
- instructions to modify a generalized set of elemental standards to generate a constrained set of elemental standards based on the one or more elements;
- and
- instructions to perform a fitting of the full spectrum to the constrained set of elemental standards to determine an elemental composition at the first depth of the subsurface formation.
Dependencies are inferred from the claim text.