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基于束鹿凹陷高分辨率三维地震连片和新钻井资料,制定了“井震结合、地震追踪、沉降中心、确定层序”的研究思路,运用钻井、测井、地震新技术新方法,将束鹿凹陷沙河街组三段下亚段精细划分为5个三级层序和15个准层序组,确定了泥灰岩、砾岩有利发育部位,明确了泥灰岩、砾岩储层在各层序中的空间配置关系,并对“源-储一体”型泥灰岩油气藏和“源-储共生”型砾岩油气藏2种致密油油气藏类型和资源潜力进行了分析,从而指出油气勘探有利方向。
Based on the high resolution 3D seismic webs and new drilling data of Shulu Sag, the research ideas of “combination of well and earthquake, seismic trace and settlement center, and determination of sequence” are formulated. By using the new drilling, well logging and seismic techniques , The lower sub-section of the third member of Shahejie Formation in Shulu Sag is finely divided into five third-order sequences and fifteen quasi-sequence sets, favorable development sites of marl and conglomerate are identified, and the marl, conglomerate The spatial distribution of reservoirs in each sequence and the relationship between the types of tight oil reservoirs and the types of tight oil reservoirs in the “source-reservoir integrated” marl reservoir and the “source-reservoir symbiotic” conglomerate reservoir Resource potential was analyzed, indicating the favorable direction of oil and gas exploration.