多约束条件下的相控建模技术——以塔中40井区CⅢ油层为例  

Facies-Controlled Modeling Technology under Multifactor Control:A Case Study of CⅢ Formation,Tazhong 40 Well Block

作　　者：佘凌峰 欧阳传湘[1] 王萌[1] 

机构地区：[1]长江大学石油工程学院油气钻采工程省重点实验室,湖北武汉430100

出　　处：《石油化工高等学校学报》2016年第3期43-47,共5页Journal of Petrochemical Universities

基　　金：中国石油天然气股份有限公司科研项目资助(2010H0142-2)

摘　　要：针对塔中40井区CⅢ油层砂体展布复杂,储层非均质性强的特点,运用Petrel建模软件,采用确定性建模与随机建模结合的方法,建立了研究区块的构造模型、沉积微相模型、属性模型,其中沉积微相模型的建立采用了四种约束机制,并利用上述模型对地质储量进行复算。结果表明,塔中40井区CⅢ油层的主力储油微相为高能前滨沙坪微相,研究区第3小层的孔隙度、渗透率等物性参数明显优于1、2小层。以三维地质模型为基础计算所得的储量值客观合理,为油田的后续开发调整奠定了基础,研究成果对类似地区的相控建模研究具有很好的借鉴意义。Distribution of sand body in CⅢ Formation Tazhong 40 well block is complicated and reservoir heterogeneity is strong. Taking deterministic modeling and stochastic modeling method into consideration, the structural model, sedimentary microfacies model and attribute model controlled by microfacies of C Ⅲ Formation Tazhong 40 well block were established by Petrel software in which the sedimentary microfacies model was established under four restrained mechanisms, then the recalculation of the geological reserves was also completed on the basis of the models. Research shows that the microfacies which can store the oil was dominated by high-energy foreshore sandsheet, the porosity and permeability of the third layer were better than that of the first and second layer in research area obviously. Whafs more, the value of geological reserves calculated by three-dimensional geological model was objective and reasonable, which layed the foundation for further development and adjustment of CⅢ Formation Tazhong 40 well block. In general, it owned reference significance for the application of facies- controlled modeling insimilar area.

关 键 词：沉积微相模型 四种约束机制 属性模型 储量复算 塔中40井区 

分 类 号：TE122[石油与天然气工程—油气勘探]