【摘要】 单砂体级高分辨率层序地层学研究对加速深化滚动勘探开发早期海拉尔盆地地质特征认识具有重要意义。运用高分辨率层序地层学原理和方法,结合钻井、测井、地震、分析化验资料,在海拉尔盆地苏31块南屯组二段识别出2个长期、4个中期、8个短期、46个超短期基准面旋回。砂体、含油砂体主要发育于LSC1下降半旋回的晚期和LSC2上升半旋回的早至中期时期中各中期基准面下降半旋回的中至晚期和中期基准面上升半旋回的早期。随着基准面的下降,砂体发育程度、砂体类型、物性、含油性逐渐变好;随着基准面的上升,砂体发育程度、砂体类型、物性、含油性逐渐变差。更多还原

【Abstract】 High-resolution sequence stratigraphy study of single sand body have a significant meaning for accelerating,deepening and rolling the geological characteristics cognition of early exploration and development of Hailaer Basin.Using methods and principles of high-resolution sequence stratigraphy,combining drilling,logging,seismic and analysis assay data,two long-terms,4 mid-terms,8 short-terms and 46 ultra-short terms of base-level cycles are recognized in Second Member of Nantun Formation of Su 31 Block of Hailaer Basin.Sand body and oil-bearing sand bodies mainly develop in middle to late period of each middle base level decreased half-cycle and the early period of middle base level increased half-cycle of late period of LSC1 decreased half-cycle,early to middle period of LSC2 increased half-cycle.The degree of sand development and sand types and physical properties and oiliness become gradually good with base level decreasing.The degree of sand development and sand types and physical properties and oiliness become gradually bad with base level increasing.更多还原