Pgnaa Borehole Logging
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- Pgnaa Borehole Logging
A prompt gamma neutron activation analysis borehole logging method for copper, nickel and iron grade estimation is proposed. The performance of the method was simulated by MCNP5 code.
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The SIROLOG gamma-gamma and neutron-gamma (PGNAA) borehole logging procedures have been providing vital characteristics of the coal seams at Callide coalfields since 1993. Together with an ...
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Determination of copper and nickel grade are fundamental to the optimum exploitation of the ore deposit. A new prompt gamma neutron activation (PGNAA) logging method that can determine copper and nickel grade in borehole is proposed, which avoids the great cost of cutting experimental analysis and the uncertainty caused by the heterogeneity of deposit. D …
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Nuclear borehole logging techniques have a potential to provide immediate and representative information about elemental concentrations in ... and streams and borehole measurements. A PGNAA system is composed of a neutron source and its shielding, sample presentation, detection system and data processing system. ...
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The spectrometric logging system based on the application of the PGNAA method has been developed at CSIRO, Exploration and Mining for in situ copper grade control in large diameter blast holes. This system has been extensively tested at five open-cut mines and one underground copper mine in Chile.
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This page is a summary of: A new PGNAA borehole logging method for determining copper and nickel grade, August 2017, Society of Exploration Geophysicists, DOI: 10.1190/segam2017-17729505.1. You can read the full text: Read
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The SIROLOG Prompt Gamma Neutron Activation Analysis probe is a spectrometric borehole logging tool . ... detector for PGNAA logging is that the crystal is less
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A prompt gamma neutron activation analysis borehole logging method for copper, nickel and iron grade estimation is proposed. ... A new PGNAA borehole logging method for determining copper and ...
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The PGNAA borehole logging method used for determining copper and nickel grade with the employment of D–T neutron generator, BGO detector and 3 He neutron tube has been proposed. Combining the information of gamma spectrum and thermal neutron counts, the nickel, copper and iron grade was determined. ...
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@misc{etde_20491407, title = {The application of PGNAA borehole logging for copper grade estimation at Chuquicamata mine} author = {Charbucinski, J, Duran, O, Freraut, R, Heresi, N, and Pineyro, I} abstractNote = {The field trials of a prompt gamma neutron activation (PGNAA) spectrometric logging method and instrumentation (SIROLOG) for copper grade estimation in …
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ABSTRACT. Determination of copper and nickel grade are fundamental to the optimum exploitation of the ore deposit. A new prompt gamma neutron activation (PGNAA) logging method that can determine copper and nickel grade in borehole is proposed, which avoids the great cost of cutting experimental analysis and the uncertainty caused by the …
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PGNAA borehole logging for copper grade analysis in Chile. The PGNAA measured a copper content lower than 1% with 10% accuracy. Using this technique, a new estimation of copper reserves was conducted in Chile which …
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The field trials of a prompt gamma neutron activation (PGNAA) spectrometric logging method and instrumentation (SIROLOG) for copper grade estimation in production holes of a porphyry type copper ore mine, Chuquicamata in Chile, are described.
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PGNAA logging data: the PGNAA spectrum is a superposition of γ-rays released by the nuclei of elements present in the rock or coal surrounding the borehole from interacting with the neutrons produced by the 252 Cf neutron source.
WhatsApp: +86 18221755073Summary The prompt gamma neutron activation (PGNAA) borehole logging system used for determining salinity with the employment of D-T neutron generator, two He-3 thermal neutron detector and LaBr3 gamma ray detector has been proposed. Based on characteristic gamma ray counts of chlorine and the formation porosity, the salinity is calculated. The relationship …
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The method is applied to four case stories covering both borehole logging and on-line analysis on conveyor belt of raw materials. Previous article in issue; Next article in issue; PACS. 29.30.Kv. ... another important industrial application of PGNAA is borehole logging for both the delineation of ore deposits and the in-situ determination of ...
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Borehole logging is a valuable addition for mine exploration and mapping, enabling an automatic real-time update of the mine plan. PGNAA can be calibrated to analyze a wide variety of raw materials such as iron, nickel or copper ore, coal or limestone. Borehole logging has mainly developed in open pit coal mines for the determination of ash
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A prompt gamma neutron activation analysis borehole logging method for copper, nickel and iron grade estimation is proposed. The performance of the method was simulated by MCNP5 code. Based on the … Expand. 10. 1 Excerpt; Save. The application of PGNAA borehole logging for copper grade estimation at Chuquicamata mine. J. Charbuciński O ...
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PGNAA logging data: the PGNAA spectrum is a superposition of g-rays released by the nuclei of elements present in the rock or coal surrounding the borehole from interacting with the neutrons ...
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Monte Carlo simulation method. Formation porosity and borehole fluid salinity influence on formation water salinity is corrected. A synthetical logging case is simulated to indicate the effectiveness of this logging method. The new logging method is also applied in oil field, and the formation water salinity of different depth is calculated.
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Once the system has been calibrated, the results are available right after completion of logging operations at a given borehole. There are relatively few reports describing the application of PGNAA logging for in-borehole determination of copper grade (Nargawalla et al., 1977; Moxham et al., 1972). Since then, significant progress has been ...
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The SIROLOG gamma-gamma and neutron-gamma (PGNAA) borehole logging procedures have been providing vital characteristics of the coal seams at Callide coalfields since 1993. Together with an ...
WhatsApp: +86 18221755073The prompt-gamma neutron activation analysis (PGNAA) technique is also used for borehole logging of coal, in particular, for the determination of ash, Fe, depth and thickness of coal strata in water-filled and dry boreholes (Charbucinski et al., 1986, Borsaru et al., 1988, Borsaru et al., 1993). A PGNAA logging system has been used by Callide ...
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The application of PGNAA borehole logging for copper grade estimation at Chuquicamata mine. Oscar Durán. 2004, Applied Radiation and Isotopes. See full PDF download Download PDF. Related papers. Logging of copper in …
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A new method of measuring the continuously variable hydraulic conductivity at 20 cm increments surrounding a borehole is described. The method requires injection of a tracer solution and measurement of the variable lateral distance the tracer has moved by prompt gamma neutron activation analysis (PGNAA) geophysical logging.
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A new prompt gamma neutron activation (PGNAA) logging method that can determine copper and nickel grade in borehole is proposed, which avoids the great cost of cutting experimental analysis and the uncertainty caused by the heterogeneity of deposit.
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Application of PGNAA in nuclear borehole logging Neutron-capture and inelastic scattering are the most common interactions used in borehole logging. The capture γ-rays produced by the main constituents of the earth crust Al, Si, Fe, Ca, Cl and S have energies above 3 MeV as shown in table 1. However, the γ-rays produced by neutron activation ...
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A prompt gamma neutron activation analysis (PGNAA) facility utilizing 252 Cf source has been developed for in situ analysis of copper samples. Monte Carlo simulation is employed to determine optimal sizes for neutron moderator, gamma-ray shielding material, and thermal neutron absorber. Subsequently, based on the parameters optimized by MCNP, the PGNAA …
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A prompt gamma neutron activation analysis borehole logging method for copper, nickel and iron grade estimation is proposed. ... A new PGNAA borehole logging method for determining copper and ...
WhatsApp: +86 18221755073
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Request PDF | On Jun 9, 2015, C. P. Smith and others published PFTNA logging tools and their contributions to in-situ elemental analysis of mineral boreholes | Find, read and cite all the research ...
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Prompt gamma neutron activation analysis, PGNAA, having undergone a period of research and development in the past two decades is finding practical applications in the areas of borehole logging, on-line or parametric analysis for ore or material processing plants (Weiss and Gartner, 1986; Gozani, 1988; Savio et al., 1995).Borehole logging has been used with a good …
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The performance of a borehole-logging system, based on prompt-gamma-neutron-activation-analysis (PGNAA), for explosive detection was studied by Monte-Carlo simulations.
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The present paper shows the results of density measurement tests determined by probing of gamma-gamma geophysical well logging, performed in two stages: one at VALE Geophysical Well Logging Test Facility (GWTF), and another in …
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A new prompt gamma neutron activation (PGNAA) logging method that can determine copper and nickel grade in borehole is proposed, which avoids the great cost of cutting experimental analysis and the uncertainty caused by the heterogeneity of deposit.
WhatsApp: +86 18221755073
Prompt gamma neutron activation analysis of nickel ore samples was carried out using a DT portable pulsed neutron generator and a Ø 7.6 × 7.6 cm LaBr3 detector. Rock powders of nickel ore were analyzed and elements Fe, Si, S, Ni were determined by using calibration curves from standard samples. The minimum detection concentrations of Fe, Si, Ni …
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