用生物標(biāo)志物定量計(jì)算混合原油油源的數(shù)學(xué)模型
[Abstract]:The quantitative calculation of mixed source oil source in multi-hydrocarbon source stratified basin is very difficult. The experiment of artificial mixing ratio of typical crude oil shows that when the two biomarkers are mixed with different concentrations of crude oil, the ratio parameters of these biomarkers vary nonlinear with the mixing amount of terminal crude oil. Using biomarker ratio parameter and simple binary linear relation equation to quantitatively calculate the mixing ratio of mixed oil will lead to wrong conclusion. When three or more crude oils are mixed, the variation of biomarker ratio parameters is more complex, and the contribution of each terminal crude oil is more difficult to judge. However, the artificial mixing simulation experiment shows that the absolute content of biomarker in the mixed oil is linear with the blending amount of the end component oil. The mathematical derivation proves this linear relationship, and the corresponding mathematical calculation model is derived. The ratio parameters of binary mixing are hyperbolic, the ternary mixing is hyperboloid, the multivariate mixing of quaternion and above is multi-dimensional surface, and the ratio of each end element oil can be calculated quantitatively by matrix. According to these mathematical models, the contribution ratio of various kinds of crude oil in mixed crude oil can be quantitatively calculated by using the absolute content of biomarkers and / or the ratio parameters of biomarkers. The mathematical model is more economical, convenient, accurate and reliable than the usual artificial simulation method.
【作者單位】: 中國石油勘探開發(fā)研究院 中國石油勘探開發(fā)研究院 中國石油勘探開發(fā)研究院 中國石油勘探開發(fā)研究院
【基金】:國家自然科學(xué)基金(49873001,40373026)
【分類號(hào)】:P618.13
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