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以高精度层序地层学理论为基础,结合测井曲线和地震解释对高尚堡油田新近系明化镇组储层的层序界面进行精细划分。将明化镇组储层划分为1个长期旋回、4个中期旋回、15个短期旋回,建立了符合实际情况的地质模型。绘制层序三砂泥比等值线图揭示出有利的岩性圈闭区是在基准面上升期间形成河道下切,下降期间能够形成泥质封盖的区域。
Based on the theory of high-precision sequence stratigraphy, the sequence boundaries of the Minghuazhen Formation reservoirs in the Neogene of Gaoshangpu Oilfield are finely divided based on well logging curves and seismic interpretation. The Minghuazhen Formation reservoir is divided into one long-term cycle, four mid-cycle cycles and 15 short-term cycle cycles to establish a geological model that meets the actual conditions. The mapping of the three sand and sand ratio contour maps reveals that favorable lithologic trap zones are the areas where the muddy cap can be formed during subsidence and descent of the channel during the ascent of the datum.