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西部斜坡区是松辽盆地的一级构造带,勘探程度低,为了加快该区稠油油藏评价步伐,引入了风险评价区和目标评价区的理念,探索出了老资料处理解释成果与小井眼钻井相结合的加快评价模式;通过二维地震连片处理解释技术攻关,初步配套了适合疏松薄互储层稠油油藏预测配套技术,指导了评价控制井方案的编制;通过宏观沉积相分析、精细砂体解剖、稠油油藏成藏主控因素分析,搞清了西部稠油油藏地质特征及规律,初步落实了西部稠油潜力;通过冷冻取心、室内实验、现场试验和数值模拟,初步确定了不同于常规的稠油油藏经济有效开采方式,加快了西部斜坡区稠油油藏评价进程。
The western slope area is a primary tectonic belt in the Songliao Basin with a low exploration level. In order to speed up the evaluation of heavy oil reservoirs in this area, the concept of risk assessment area and target evaluation area was introduced, and the results of old data processing and exploration were explored. Eye drilling well; through the research of two-dimensional seismic contiguous processing and interpretation technology, the preliminary supporting technology for the prediction of heavy oil reservoirs in thin and thin reservoirs is initially provided, and the preparation of the scheme for evaluating control wells is instructed; Analysis of fine sand body anatomy, the analysis of the main controlling factors of heavy oil accumulation, clarified the geological characteristics and laws of the heavy oil reservoir in western China, and initially implemented the potential of heavy oil in the western region. Through freezing coring, laboratory experiment, field test and The numerical simulation initially determined the economic and effective mining methods different from the conventional heavy oil reservoirs and accelerated the evaluation of heavy oil reservoirs in the western slope.