用高效液相色谱法预测两油层合采过程中单层的产量分数

 在全油的气相色谱指纹没有显著差异的原油中 ,发现了萘、菲系列化合物在原油中的浓度具有显著差异。提出了预测两油层合采过程中的分层产量分数的新方法。选择萘、菲系列化合物为地化指标 ,用氧化铝 硅胶柱对其预分离 ,再用高效液相色谱法测定其视浓度。通过用人工配制的混合原油进行验证 ,结果表明该方法适用于全油气相色谱差别小的原油 ,预测值与实际值的相对偏差为 8% ,精确度优于全油气相色谱指纹法。

Prediction of Output Fraction from Single Layer to Commingling Oil Well by High Performance Liquid Chromatography(HPLC)

For crude oil from the same source, there is no obvious difference in chromatographic fingerprint of total hydrocarbons? But an evident difference in the concentrations of the series compounds of naphthalene and phenanthrene in oils has been found Based on the fact, a new method for determine production allocation in commingled production, has been proposed In this method, the series compounds of naphthalene and phenanthrene are selected as geochemistry indicator and are pretreated with aluminum oxide silica gel column, and their relative concentration is determined by HPLC Being verified by artificially mixing samples, the method can be used for the oils that can not be differentiated with the chromatographic fingerprint of total hydrocarbons, and error between predicted value and real value is 8% and its accuracy is better than that of the gas chromatographic fingerprint method Based on the mixture principle, a model for prediction of output fraction of single oil layer is proposed This model has been applied to production allocation calculation