skip to main content

SciTech ConnectSciTech Connect

Title: Development of pulsed neutron uranium logging instrument

This article introduces a development of pulsed neutron uranium logging instrument. By analyzing the temporal distribution of epithermal neutrons generated from the thermal fission of {sup 235}U, we propose a new method with a uranium-bearing index to calculate the uranium content in the formation. An instrument employing a D-T neutron generator and two epithermal neutron detectors has been developed. The logging response is studied using Monte Carlo simulation and experiments in calibration wells. The simulation and experimental results show that the uranium-bearing index is linearly correlated with the uranium content, and the porosity and thermal neutron lifetime of the formation can be acquired simultaneously.
Authors:
 [1] ;  [2] ;  [3] ;  [1]
  1. School of Geosciences, China University of Petroleum, Qingdao 266580 (China)
  2. (East China Institute of Technology), Ministry of Education, Nanchang 330013 (China)
  3. China Institute of Atomic Energy, Beijing 102413 (China)
Publication Date:
OSTI Identifier:
22392420
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CALIBRATION; COMPUTERIZED SIMULATION; DISTRIBUTION; EPITHERMAL NEUTRONS; LIFETIME; MONTE CARLO METHOD; NEUTRON GENERATORS; POROSITY; PULSES; THERMAL FISSION; THERMAL NEUTRONS; URANIUM; URANIUM 235