杏树岗—太平屯地区扶杨油层层序地层研究

Sequence Stratigraphy of Fuyang Reservoir in Xingshugang-Taipingtun Area, Songliao Basin

运用层序地层学原理和方法,根据岩心资料,识别了松辽盆地杏树岗-太平屯地区扶杨油层短期基准面旋回及其界面的类型,分析其相序特征;通过岩心标定测井,建立其基准面旋回的测井响应模型并划分中期基准面旋回;通过对岩心、测井、录井、三维地震资料的综合分析,识别出短期、中期和长期三种规模的地层旋回。在此基础上,运用地层基准面原理,建立扶杨油层的等时地层格架,研究其河流-三角洲层序发育特征及其演化过程。

The facies sequence characteristic in Xingshugang-Taipingtun area in Songliao basin is analyzed by means of principle and method of sequence stratigraphy, detailed core data, recognizing the short-term cycle of datum level and its type in Fuyang reservoir. The well log response model of the datum cycle is developed through core calibration and well logging, classifying the middle-term cycle of datum level. The stratigraphic cycles of short, middle and long terms are presented by integrated analyses of core, well log, logging and 3D seismic data. Based on these, the isochronal stratigraphic framework of Fuyang reservoir is established, and the fluvial-delta sequence feature and evolution process are studied in this paper.