The investment benefits of Shengli oilfield from 1986 to 1998 are evaluated by using data envelopment analysis (DEA) method. An evaluation model of DEA is developed. The evaluation indexes are given. The basic data in petroleum exploration and exploitation of Shengli oilfield are quantitatively analyzed by using DEA model. Some countermeasures for solving the problems at present are proposed. The analysis results can be a scientific basis for investment decision and management of Shengli oilfield.%运用数据包络分析方法(DEA)对胜利油田1986-1998年的投资效益进行了科学评价，建立了评价胜利油田经济效益的DEA计算模型，给出了评价指标。利用DEA模型对胜利油田开发中的基础数据进行了定量分析，并针对目前油田开发管理中存在的问题提出了相应的对策。该研究结果为油田投资决策和经营管理提供了一定的科学依据。
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