多孔介质中示踪剂渗流的油藏特征色谱效应  

Reservoir characteristics of chromatographic effect of tracer flow in porous medium

作　　者：刘同敬[1,2,3,4] 姜宝益 刘睿[6] 张新红[7] 谢晓庆 

机构地区：[1]中国石油大学(北京)提高采收率研究院,北京102249 [2]中国石油大学(北京)石油工程教育部重点实验室,北京102249 [3]中国石油天然气集团公司三次采油重点实验室,北京102249 [4]北京市温室气体封存与资源化利用重点实验室,北京102249 [5]中国华电集团科学技术研究总院有限公司,北京100035 [6]中国石油大学(北京),北京102249 [7]中国原子能科学研究院同位素研究所,北京102413 [8]中海油研究总院,北京100027

出　　处：《重庆大学学报（自然科学版）》2013年第9期58-63,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(10802079);国家科技重大专项资助项目(2011ZX05009;2011ZX05054;2011ZX05011);中石油创新基金资助项目(2009D-5006-02-01)

摘　　要：国内外矿场实践证明,目前油田井间示踪监测解释中存在解释模型部分明显偏离了合理的范畴,存在考虑因素过于单一、片面的问题,不能很好适应多孔介质复杂渗流的定量化描述,为此设计完成了示踪剂微观可视化实验和天然长岩心驱替实验,定性、定量的分析多孔介质示踪剂渗流特征,并提出了示踪剂渗流具有的油藏特征色谱效应。示踪剂微观可视化实验显示:油藏特征色谱效应的基础是存在的,即小分子示踪剂可以进入束缚水、不连通孔隙及低渗团块。天然长岩心驱替实验显示:小尺寸非均质强的天然长岩心,水的突进和绕流明显,油藏特征色谱效应明显,水的运移速度和示踪剂孔隙运移速度差距大。对井间示踪剂监测的量化解释和定性认识具有极其重要的指导意义。Oil field practices have proved that the part of the interpretation model significantly deviated from the reasonable scope in interwell tracer interpretation. It is considered too single and unilateral, and can not adapt to the complicated seepage flow in porous medium and the quantitative description. Therefore, after completed the design of tracer microscopic visualized experiment and natural long core displacement experiment, we try to qualitative and quantitative analysis the tracer characteristics and propose the reservoir characteristic of chromatographic effect of the tracer flow. The tracer microscopic visualization experiments show that the foundation of reservoir characteristics of the chromatographic effect exists, that is small molecular tracers can enter the irreducible water, unconnected pores and low permeability clumps. The natural long core displacement experiment shows that water breakthrough and flowing around are significantly in the small size of non- homogenous natural long core, and reservoir characteristic of chromatographic effect is also significantly, the migration speed between water and tracer is bigger. That must be considered in interwell tracer interpretations. It has an extremely important guiding significance for quantitative interpretation and qualitative understanding of interwell tracer monitoring.

关 键 词：示踪剂 色谱效应 多孔介质渗流 实验 可视化 天然长岩心 

分 类 号：TE133[石油与天然气工程—油气勘探]