Well logging calculation method for clay content of glutenite stratum containing volcaniclastic particles
The invention discloses a volcaniclastic particle-containing glutenite stratum clay content logging calculation method, which comprises the following steps: firstly, establishing a clay-containing section rock hydrogen index model, and reflecting the relationship among the rock total hydrogen index,...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a volcaniclastic particle-containing glutenite stratum clay content logging calculation method, which comprises the following steps: firstly, establishing a clay-containing section rock hydrogen index model, and reflecting the relationship among the rock total hydrogen index, stratum electron density and clay content of the clay-containing section of the volcaniclastic particle-containing glutenite stratum by an obtained model formula; then in the glutenite stratum containing the volcaniclastic particles, the stratum electron density is obtained through the density logging curve, and the total hydrogen content index of the rock is obtained through the neutron logging curve; and then solving model parameters b, c and d, wherein the parameters b and d are directly obtained by fitting a density curve and a neutron curve of a clay-free section. And selecting the difference value of the density curve and the neutron curve in the clay-containing section and fitting the difference value with |
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