论文部分内容阅读
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。
In crude oils with no significant difference in gas chromatographic fingerprints, significant differences in concentrations of naphthalene and phenanthrene compounds in crude oils were found. A new method to predict stratified production fraction in the process of co-production of two reservoirs is proposed. Select naphthalene, phenanthrene series compounds as geochemical indicators, pre-separation with silica gel column, and then determine the apparent concentration by high performance liquid chromatography. The results show that the method is suitable for crude oil with little difference between GC and GC, and the relative deviation between the predicted value and the actual value is 8%. The accuracy is better than that of the whole oil gas chromatography fingerprinting method.