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1978年期间,我们在胜利油田勘探开发规划院大力支持下,通过岩芯观察及各项分析资料的综合对比,完成了东营凹陷沙三上(沙河街组第三段上部)—沙二(沙河街组第二段)时期古河流体系的划分和水文状况的恢复工作。胜利油田东营凹陷是本区的主要油田之一,沙三上—沙二时期沉积的含油砂岩体具有重要实践意义。搞清这一时期的古河流体系能为本区沉积岩相的研究提供一些基础资料,从而对东营凹陷型盆地的油田勘探工作和稳产高产地开发油田有所补益。
During 1978, with the strong support of the Shengli Oilfield Exploration and Development Planning Institute, through the comprehensive observation of the core observation and various analysis data, we completed the construction of Sha 3 (Upper Third Section of Shahejie Formation) - Sha II Street Group of the second period) the division of ancient river system and the restoration of hydrological conditions. Dongying sag in Shengli Oilfield is one of the major oilfields in this area. The oil-bearing sandstone bodies deposited during the second and the third sandstones of Shahejie Formation have great practical significance. The clarification of the paleo-river system during this period can provide some basic data for the study of sedimentary facies in this area, which will benefit the oil exploration in Dongying depression basin and the development of oilfields with high and stable yields.