Oil and gas evaluation method based on two-dimensional chromatographic logging information

The invention discloses an oil and gas evaluation method based on two-dimensional chromatographic logging information. The method comprises the following steps of comparing two-dimensional chromatographic information of a sample with a pre-established family template, classifying substances in the sample according to different hydrocarbon and carbon atom numbers, and quantitatively calculating the relative content of each family of the sample, and judging whether the sample contains oil and gas resources or not based on the relative content of each family of the sample, and if so, judging the oil quality of the sample based on the relative content of each family of the sample. According to the scheme, hydrocarbon components such as n-alkanes, cycloalkanes, chain alkanes and aromatic hydrocarbons with the same carbon atom number can be distinguished, and the reliability of explaining an oil quality conclusion and a fluid type conclusion is improved. 本发明公开了一种基于二维色谱录井信息的油气评价方法。通过样品的二维色谱信息与预先建立的族类模板的比对，将样品中的物质按照不