Thin Interbed Architecture Analysis for Meandering Channel Point Bar

摘要

Meander point bar reservoir in oil and gas reservoirs account for a large proportion. The complexity of interbed architecture has an important influence on the formation and distribution of remaining oil, so it is great significance to study the characteristics on the remaining oil analysis and tapping the potential. The studying layer is Daqing Oilfield Block A X unit, it is important anatomical layers of the thick oil layer structure adjustment. With dense well net data and Core data to study the internal architecture of the subsurface monosandstone body, reveals the Xingbei Delta plain meander point bar three-dimensional architecture characteristics of Daqing Placanticline. The following is lateral accretion mudstone thin interbed architecture parameters: the tendency East; average inclination of 7°, the same side of the plot surface, the upper angle: 10°, 7°, 3°, a width of 15~42 m section on densely imbricate arrangement; plane meandering loop track set intersection, both sides of the abandoned channel inflection point, abandoned channel meander ring outside the ring center in progressive curvature gradually smaller arc group. This mode is a follow-up of the remaining oil analysis and tapping the potential to provide a scientific geosteering.