摘要
河流相储层常具有较难描述的几何结构,这往往可归结为砂体伴随着复杂的沉积环境。在开采过程中,主要流动路径是通过砂岩进行的,在特定的井位构形下,砂岩的连通性和非均质性对于油气采收率至关重要。以slg气田砂质辫状河盒8储层为实例,采用确定性内插与随机模拟相结合的建模方法,建立的地质模型揭示了河流相叠置砂岩分布连通性和传导性的一般特征。由于具有多个沉积微相分布的储层属性参数有较大差别,通过沉积微相的条件约束模拟,合理体现了微相内地质特征的相似性,使地质模型更符合实际。
It is difficult to describe the geometric structure of fluvial facies reservoirs,which owes to sand body with complicated sedimentary environment.In the mining process,the main flow path is through the sandstone,and in particular wells conformation,the sandstone connectivity and heterogeneity is crucial for hydrocarbon recovery.Taking the sandy braided reservoir of He 8formation in SLG gas field as an example,combination of the deterministic interpolation and stochastic simulation is used in modeling.The geological model reveals the general characteristics of distribution connectivity and conductivity of stacked fluvial sandstones.As the attribute parameters of multiple sedimentary facies reservoir distribution are quite different,microfacies constraints simulation embodies the similarity of geological characteristics reasonablely which makes geological model is more realistic.
出处
《石油工业计算机应用》
2013年第3期37-41,4,共5页
Computer Applications Of Petroleum
基金
中石油股份公司重大科技专项项目:"低渗透低丰度砂岩气藏水平井布井和改造工艺技术研究"(2011ZX05015-001)资助
关键词
河流相
沉积微相
地质模型
流动单元
fluvial facies
sedimentary microfacies
geological model
flow unit
