原油中的镍与钒,在判断生油岩相及对比油源方面是很重要的指标。常用的分析方法是先把原油样品加热碳化,再灰化,然后用无机酸溶解灰份,再用原子吸收分光光度法或其它方法测定其中的镍(钒)含量。为了提高分析结果的准确度和精度,避免灰化过程中的损失和污染,本文采用原油直接分析法。即原油经有机试剂溶解后,加入镍的无机标准,制成乳状液,直接进入仪器测定。 Nickel and vanadium in crude oil are very important indicators in judging the source rock facies and the comparative source. A common analytical method is to heat and carbonize a crude sample first, then asher, then dissolve the ash with an inorganic acid, and then determine its nickel (vanadium) content by atomic absorption spectrophotometry or other methods. In order to improve the accuracy and accuracy of the analysis results and avoid the loss and pollution during the ashing process, the crude oil direct analysis method is adopted in this paper. That crude oil dissolved by organic reagents, adding inorganic standard nickel, made of emulsion, directly into the instrument determination.