根据油田开发过程中存在的边际利润递减和边际成本递增规律，将边际分析原理应用到经济学中，在准确预测油气开采成本及油田开发指标的基础上，建立了油田经济产量及经济可采储量预测模型。通过对某油区年度配产及八区侏罗系和三叠系油藏的试算研究，验证了该方法的实用性和可行性。 According to the law of diminishing marginal profit and increasing marginal cost existing in the process of oilfield development, the principle of marginal analysis is applied to economics. Based on the accurate prediction of oil and gas exploration costs and oilfield development indicators, the economic output and economic recoverable reserves of oilfields are established Predictive model. The feasibility and feasibility of this method are verified by a trial study on the annual distribution of a certain oil region and the Jurassic and Triassic reservoirs in the eight regions.