Study on logging response mechanism and quantitative prediction—Take PL19-3 Oilfield as an example
The crude oil is grouped into light-medium recombination groups.Each logging project represents the characteristics of a portion of the oil,but also reflects the overall physical properties of the oil to varying degrees.According to the correlation size,the prediction effect was analyzed as follows:geochemical pyrolysis>geochemical chromatography>three-dimensional fluorescence>gas measurement.Under certain conditions,the part can reflect the whole,which is the basis of oil physical property prediction for a single logging project.Under the guidance of internal principle and response mechanism,the quantitative prediction of crude oil physical properties in the study area was carried out with the crude oil physical properties analysis data as the scale,and the pyrolysis prediction method under chromatographic calibration and gas prediction method under limited conditions were formed.The absolute error of predicting crude oil density was±0.01 and±0.02,respectively.Based on the strong correlation and multiple factors,the predictor-transformation formula set suitable for multiple scenarios in the study area is established.
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