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油藏评价是实现勘探开发一体化系统工程的枢纽环节与核心载体。以区域沉积构造背景、宏观成藏富集规律及开发生产动态效果为基础,从高分辨率层序地层学、储层地质学和成藏动力学等多学科交叉角度对鄂尔多斯盆地姬塬地区上三叠统延长组岩性油藏开展了系统的综合性评价。结果表明,储层非均质性与流动单元的精细刻画及成岩演化与油气充注的匹配关系、能量场形成演化的成藏效应与裂缝输导体的输导性能、流体运移路径的三维追踪与油气聚集的圈闭类型等因素是控制研究区岩性油藏富集空间与成藏规模的主要问题,亦是产能预测与优选开发油藏快速评价体系中的重点参数指标。
Reservoir evaluation is the key link and core carrier for realizing the integrated system engineering of exploration and development. Based on the regional depositional tectonic setting, macroscopic accumulation and accumulation, and the dynamic effects of development and production, this paper analyzes the effects of high-resolution sequence stratigraphy, reservoir geology and reservoir dynamics on the Jiyuan area in the Ordos Basin The Triassic Yanchang Formation lithologic reservoir has been systematically evaluated. The results show that reservoir heterogeneity, fine characterization of flow units and the matching relationship between diagenesis evolution and hydrocarbon filling, the reservoir forming effect of energy field evolution and evolution, the conductivity of the crack conductor, the three-dimensional tracking of the fluid transport path Factors such as the type of traps and the accumulation of hydrocarbons are the major problems in controlling the enrichment space and reservoir-forming scale of lithologic reservoirs in the study area. They are also the key parameters for predicting productivity and optimizing the rapid development of reservoirs.