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以长春油田为挥发性油藏实例，通过流作物性分析资料和实际生产特征的研究，认为挥发性油藏的特殊性取决于它的烃类体系的组分组成特征。该类油（气）藏开发过程中轻烃回收是必要的。以热力学和相平衡理论为基础，选用PR状态方程建立了轻烃回收的相态模型，并且进行了可行性和精度检验。对长春油田进行了轻烃回收模拟计算，获得了具有理论和实际意义的结论。
Taking Changchun Oilfield as an example of volatile oil reservoir, the characteristics of volatile oil reservoirs are determined by the compositional characteristics of its hydrocarbon system through the study of flow-crop analysis data and actual production characteristics. Recovery of light hydrocarbons during the development of this type of oil (gas) reservoir is necessary. Based on the theory of thermodynamics and phase equilibrium, the phase state model of light hydrocarbon recovery was established by using the PR equation of state, and the feasibility and accuracy test were carried out. The light hydrocarbon recovery simulation was carried out in Changchun Oilfield, and the conclusion was obtained with both theoretical and practical significance.