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根据构造演化及沉积响应特征,利用钻井取芯、岩屑录井、测井资料以及高分辨率地震资料,将埕宁隆起北坡新近系划分为1个超长期、7个长期旋回层序。通过精确的层序地层划分及井震对比,建立了研究区新近系的等时层序地层格架。在此基础上,对层序发育的主控因素进行了探讨,认为构造沉降、全球海平面变化、气候变化、地形因素及河流类型是埕宁隆起北坡新近系层序形成与发展的主要控制因素。高精度层序地层划分及层序地层格架的建立对埕宁隆起北坡新近系岩性油气藏的勘探开发具有重要指导意义。
Based on the tectonic evolution and sedimentary response characteristics, we use the core drilling, debris logging, well logging data and high-resolution seismic data to divide the Neogene of the north slope of the Suining uplift into one ultra-long-term and seven long-term cycles. By means of accurate stratigraphic division and well contrast, a series of isochronous stratigraphic frameworks of Neogene in the study area have been established. On this basis, the main controlling factors of the sequence development are discussed. It is believed that the structural control, global sea level change, climate change, topographic factors and river types are the main control of the formation and development of the Neogene system in the north slope of the Suining uplift factor. The establishment of high-precision sequence stratigraphy and sequence stratigraphic framework has important guiding significance for the exploration and development of the lithologic reservoirs in the north slope of the Suining uplift.