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方法应用测井、区域地质和油气藏动态资料，对欢喜岭油田上台阶稠油油藏的形成条件及分布特点进行研究。目的为该区的滚动勘探提供依据。结果欢喜岭油田上台阶生储盖在空间上具有良好的配置关系，长期广泛发育的扇三角洲前缘水道砂及早期或同期形成的多种圈闭，为油气聚集提供了有利场所；油气在长距离的运移过程中，轻质组分大量散失，重质组分浓缩聚集成稠油油藏；而有利岩相带与构造的有机配合则控制了稠油的分布。结论通过对欢喜岭油田上台阶稠油油藏形成条件和分布特点的研究，并将其研究成果进行实施，取得了齐４０和齐１０８块的连片及齐１０８块扩边的成功，发现了新区欢６１６块，为下步滚动勘探指明了方向。
Methods The logging data, regional geology and reservoir data were used to study the formation conditions and distribution characteristics of the heavy oil reservoir in the Huanxiling oil field. The purpose is to provide the basis for rolling exploration in this area. Results The Upper Pleistocene reservoirs in Huanxiling Oilfield have good spatial relationships with each other. The long-term fan delta front channel sand and various traps formed in the early or contemporaneous period provide a favorable site for oil and gas accumulation. In the process of migration, the light components are largely lost and the heavy components concentrate and condense into heavy oil reservoirs. The favorable combination of favorable lithofacies and tectonics controls the distribution of heavy oil. Conclusion Based on the research on the forming conditions and distribution characteristics of heavy oil reservoirs in the Huanxiling oil field and the successful implementation of the research results, the success of the contiguous blocks of Qi40 and Qi108 and the expansion of Qi108 has been achieved. New District Huan 616, for the next step rolling exploration pointed out the direction.