density logの例文

• Reflection coefficients are calculated from P-sonic, S-sonic and density logs using the Zoeppritz equations.
• The combination of neutron and density logs takes advantage of the fact that lithology has opposite effects on these two porosity measurements.
• This requires accurate p-sonic, s-sonic and density logs tied to the appropriate events on the seismic data.
• This characteristic allows a neutron porosity log to be used with other porosity logs ( such as a density log ) to detect gas zones and identify gas-liquid contacts.
• Greensands may cause varying degrees of difficulty for porosity log analysis . radicals affect neutron logs; the iron component is troublesome, and varying clay hydration needs to be considered for density log interpretation.
• Elseth, T ., Nicolaysen, R ., Roberts, D . E . R .  Grain Density Correction of the Density Log : A Core-Log Calibration Method for Improved Porosity Prediction in Mineralized Micaceous Sandstone Reservoirs, SPWLA 42 nd Annual Logging Symposium, June 17 20, 2001.