Research on spectral processing methods of the carbon/oxygen spectral logging in sandstone
| Autor: | Liuqiong He, Wensheng Wu, Xinyue Fu, Xiaolong Li, Mengting Li, Chao Yang, Ruigang Wang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Radiation
Computer simulation Monte Carlo method Borehole chemistry.chemical_element Mineralogy Spectral processing 010403 inorganic & nuclear chemistry 01 natural sciences Oxygen Physics::Geophysics 030218 nuclear medicine & medical imaging 0104 chemical sciences Salinity 03 medical and health sciences 0302 clinical medicine chemistry Porosity Saturation (chemistry) Geology |
| Zdroj: | Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 151 |
| ISSN: | 1872-9800 |
| Popis: | The inelastic spectrum-based carbon/oxygen spectral logging has been widely applied in the interpretation of residual oil saturation. The effects of traditional spectral processing methods for obtaining inelastic spectrum are influenced by salinity (including pore fluid salinity and borehole fluid salinity), clay content, porosity, etc. The interpretation accuracy thereof needs to be improved. In this paper, we proposed a new method for obtaining inelastic spectrum. To validate the new method and compare it with the traditional methods, the numerical simulation method (Monte Carlo) is used to simulate different formation models. The result shows that in addition to sandstone formation with clay, the new method improves the interpretation accuracy of oil saturation. |
| Databáze: | OpenAIRE |
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