Density measurement of a selected layer by gamma spectral deconvolution
AssigneeHalliburton Energy Services, Inc.
InventorsMayir Mamtimin, Jeffrey James Crawford
Life of this patent
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Abstract
A method and system for determining a density. The method may comprise disposing a nuclear density tool into a wellbore, performing a spectral deconvolution, determining an energy channel for a first measurement layer, recording a count rate with the gamma detector for the first measurement layer, applying a slope operator to the count rate, and identifying a first density of the first measurement layer. The system may comprise a nuclear density tool that includes a gamma source and a gamma detector configured to record a count rate, wherein the gamma detector and the gamma source are disposed on a longitudinal axis of the nuclear density tool. The system may also comprise an information handling system.
Claims20
A method for determining a density comprising:
- disposing a nuclear density tool into a wellbore, wherein the nuclear density tool comprises:
- a gamma source;
- and
- a gamma detector, wherein the gamma detector and the gamma source are disposed on a longitudinal axis of the nuclear density tool;
- performing a spectral deconvolution;
- determining an energy channel for a first measurement layer;
- recording a count rate with the gamma detector for the first measurement layer;
- applying a slope operator to the count rate;
- and
- identifying a first density of the first measurement layer.
A system for determining a density comprising:
- a nuclear density tool, wherein the nuclear density tool comprises:
- a gamma source;
- and
- a gamma detector configured to record a count rate, wherein the gamma detector and the gamma source are disposed on a longitudinal axis of the nuclear density tool;
- and
- an information handling system configured to:
- perform a spectral deconvolution;
- determine an energy channel for a first measurement layer;
- apply a slope operator to the count rate;
- and
- identify a first density of the first measurement layer.
Dependencies are inferred from the claim text.