论文部分内容阅读
通过总结我国鄂尔多斯盆地和澳大利亚Surat basin这两个典型的陆内克拉通盆地的层序充填序列,认为该类盆地具有典型的层序地层充填模式:(1)典型的正粒序岩性组合特征;(2)基准面旋回为上升半旋回为主的不对称旋回,具有长期持续水进、短期水退旋回特征;(3)层序主要以LST为主,发育相互切割叠置的复合砂体,为最有利储层;TST和HST相对不发育,发育孤立状的单砂体,为中-差储层.陆内克拉通盆地层序地层及其控制的砂体具有“溯源退积”的时空展布模式,该模式主要受到盆地边缘构造、沉积物供给、湖平面变化、古地形、“盆地充填”和气候等因素的单独或综合控制.
By summarizing the sequence filling sequence of two typical intraocular cratonic basins in the Ordos Basin and Australia Surat basin, the basin is considered to be a typical sequence-stratigraphic filling model: (1) typical positive-grained lithologic assemblage (2) The basal plane cycles are mainly asymmetric cycles with ascending half-cycles and long-term continuous water inflow and short-term water cycles. (3) The sequence is dominated by LST, and the composite sand bodies , Which is the most favorable reservoir.The TST and HST are relatively undeveloped and isolated isolated sand bodies are medium-poor reservoirs.The sequence stratigraphy of the intracontinental cratonic basin and the sand bodies controlled by them are characterized by The model is mainly controlled by the single or comprehensive control of the basin margin structure, sediment supply, lake level change, palaeogeography, “basin filling” and climate.