Gamma-ray spectroscopy logging tool
AssigneeHalliburton Energy Services, Inc.
InventorsJiaxin Wang, Jeffrey James Crawford, Zilu Zhou, Weijun Guo, Stephen A. Zannoni
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Abstract
A variety of methods and apparatus are disclosed, including, in one embodiment, a pulsed neutron logging tool for a borehole in a subterranean formation, including: a pulsed neutron generator to broadcast neutrons into the subterranean formation; and a gamma ray scintillator detector comprising cerium bromide (CeBr3), wherein the pulsed neutron logging tool (e.g., as lowered into the borehole) is configured to detect neutron-induced gamma rays from the subterranean formation and natural gamma rays from the subterranean formation.
Claims20
A pulsed neutron logging tool for a borehole in a subterranean formation, comprising:
- a pulsed neutron generator to broadcast neutrons into the subterranean formation;
- and
- a gamma ray scintillator detector comprising cerium bromide (CeBr3), wherein the pulsed neutron logging tool is configured to detect, via the gamma ray scintillator detector, neutron-induced gamma rays from the subterranean formation and natural gamma rays from the subterranean formation.
A method of deploying a pulsed neutron logging tool, comprising:
- lowering the pulsed neutron logging tool into a borehole in a subterranean formation;
- detecting natural gamma rays from the subterranean formation via one or more scintillator detectors of the pulsed neutron logging tool, wherein the one or more scintillator detectors comprise cerium bromide (CeBr3);
- broadcasting neutrons into the subterranean formation via a pulsed neutron generator of the pulsed neutron logging tool;
- and
- detecting neutron-induced gamma rays and natural gamma rays from the subterranean formation via the one or more scintillator detectors.
Dependencies are inferred from the claim text.