摘要
小层规模内单砂体的细分是目前油气田开发地质研究中亟待解决的问题.综合运用"旋回对比,分级控制"的小层对比技术、高分辨率层序地层学及储层建筑结构层次分析法,详尽剖析了目前在河流相单砂层细分对比研究中存在的主要问题,包括过于强调沉积间歇面的作用、机械运用等高程对比原则、单纯依据砂体厚度劈分等.指出在层次细分与对比过程中,不可过分拘泥于沉积砂体的层次性,而是需要对沉积过程和砂体的成因作出合理解释,研究砂体本身固有的沉积学特征及其空间展布特点,将各种地层对比、划分方法有机结合,才能建立精确的储层地质模型,为油藏数值模拟及剩余油分布预测提供依据.
The subdivision of the single sand-body within a thin layer is a problem to be solved for the geologic study of oil-gas oilfield development.The problems in the study on the subdivision and comparison of the fluvial single sandbody are analyzed by using the thin-layer comparison technique of 'cycle comparison and hierarchical control',the analytic method of high-resolution sequence stratigraphy and the analytic hierarchy process of reservoir architectural structure.The problems include overemphasizing the effect of sedimentary surface,mechanically using isoelevation comparison principle,subdividing only according to the thickness of the sand-bodies,and so on.It is pointed that in the subdivision and comparison of fluvial reservoir,does not overemphasize the hierarchy of the sand-bodies,but overemphasize the reasonable explanation of deposition process and sand-body genesis.The accurate geologic moeel of reservoir can be established by studying the sediment features and the special distribution features of the sand-bodies and combining various formation comparison and division methods,which can provide the basis for the numerical simulation of reservoir and the prediction of remaining oil distribution.
出处
《西安石油大学学报（自然科学版）》
CAS
2008年第1期17-21,共5页
Journal of Xi’an Shiyou University（Natural Science Edition）
关键词
储层建筑结构
单砂层
隔夹层
成因砂体
reservoir architectural structure
single sand-body
intercalation
genetic sand-body
