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在对某盆地５０００多个罐装样轻烃样品进行分析、总结，并与试油、测井等资料对比的基础上，提出了一些用于判断含油气显示的轻烃指标。这些指标分为两类：一类是浓度指标，如∑（Ｃ１～Ｃ７）等轻烃含量指标，用于区分油气显示与非油气显示；另一类是相对比值指标，如（Ｃ５～Ｃ７）／（Ｃ１～Ｃ４），ｉＣ４／ｎＣ４，ＭＣＨＩ等，用于区分油显示与气显示。据此建立了该盆地储层含油气性罐装样轻烃评价标准。
Based on the analysis and summary of more than 5000 canned samples of light hydrocarbon in a basin and comparison with the data of test oil and well logging, some indicators of light hydrocarbons for judging the presence of oil and gas are proposed. These indicators are divided into two categories: one is the concentration index, such as Σ (C1 ~ C7) and other light hydrocarbon content indicators, used to distinguish between oil and gas display and non-hydrocarbon display; the other is the relative ratio indicators, such as (C5 ~ C7) / (C1 ~ C4), iC4 / nC4, MCHI, etc., used to distinguish between oil display and gas display. Based on this, the evaluation standard of hydrocarbon-bearing canned light hydrocarbon in this basin was established.