基于流动单元的火山碎屑沉积岩储层渗透率计算  

Permeability Evaluation and Productivity Prediction in Reservoir with Pyroclastic Sedimentary Rock

作　　者：欧霞[1] Ouxia

机构地区：[1]大庆油田勘探开发研究院

出　　处：《国外测井技术》2019年第1期25-28,I0001,共5页World Well Logging Technology

摘　　要：A油田G组储层普遍含凝灰,为火山碎屑沉积岩储层,储层岩性、岩相变化快,孔隙结构复杂,非均值性强,精细解释渗透率是油田开发阶段测井精细评价技术难题。研究表明,同一流动单元内,孔渗关系的一致性比较好,因此,在A油田G组火山碎屑沉积岩储层考虑储层内部及渗流特征差异,基于流动单元对储层进行分类,按不同流动单元建立渗透率解释模型,取得了较好的应用效果。Tuff commonly exists in reservoir of group G in A oil field, which is pyroclastic sedimentary rock, Lithology and lithofacies change fast, pore structure is complex, Heterogeneity is strong, permeability interpretation Precisely is a technical problem for fine logging evaluation during Oilfield development stage. Research shows that The the relationship between porosity and permeability is good Within the same flow unit, therefore, Considering the difference of internal and seepage characteristics of reservoir in A Oil field of group G, Reservoir classification Based on flow unit, and establishes of permeability interpretation model Within the same flow unit, the result of which is much better.

关 键 词：流动单元 火山碎屑沉积岩 渗透率计算 渗流特征 

分 类 号：TE258[石油与天然气工程—油气井工程]