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Novel Mixed-Field Neutron-Gamma Detectors for Oil and Gas Well-Logging

Novel Mixed-Field Neutron-Gamma Detectors for Oil and Gas Well-Logging

  • Date 07 Dec 2022
  • Time 15:30 to 16:30
  • Category Seminar

James Greer (University of Sheffield)

A full suite of tools are available for the determination of oil and gas well properties, such as porosity, hydrogen content, and Carbon/Oxygen ratio. These tools often employ active interrogation of the borehole with neutron radiation. Historically, sources employed in such detectors included chemical AmBe or PuBe sources, which international agencies are keen to phase out. In the 1960s, pulsed neutron tools were introduced to well logging, which allow the timing characteristics of a neutron pulse to be considered in analysis. My work centres around the exploitation of pulsed D-T neutron generators for formation evaluation, specifically on increasing segmentation in these detectors using novel detector types such as neutron converter foils. 

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