单砂体内部流动单元评价  

Evaluation of flow unit in monosandstone body

作　　者：闫百泉[1] 马世忠[1] 王龙[1] 樊立新 王桂华 

机构地区：[1]大庆石油学院地球科学学院,黑龙江大庆163318 [2]中国石油集团测井有限公司长庆事业部,陕西西安710072

出　　处：《大庆石油学院学报》2007年第6期11-13,21,共4页Journal of Daqing Petroleum Institute

基　　金：国家"973"攻关项目(2001CB20914);黑龙江省研究生创新基金(YJSCX2007-0146HLJ);中国石油天然气股份有限公司科技风险创新基金项目(油科函字(2004)32-KF3)

摘　　要：以高分辨率、层序地层学指导下的沉积微相研究为基础,选择渗流因数、存储因数,对成因单砂体内部4级流动单元进行研究,并划分成4个级别.A(最好),B(好)类流动单元主要是河道主体成因控制的高效渗流场,C(中等),D(差)类流动单元主要是河道边部、废弃河道等微相控制的低效渗流场;A,B类流动单元储层具有较好的储存能力和高效的采出程度,C,D类流动单元是剩余油容易富集部位.理论和实际研究表明,单砂体内部建筑结构是地下非均质性的主控因素,对剩余油形成、分布具有重要影响.Based on the research of sedimentary microfacies under the guidance of high resolution sequence stratigraphy,reservoir factor and percolation factor are chosen,the 4th sublevel flow units in genetic monosandbody are investigated,and the 4 levels are classified as A,B,C and D.A and B level flow units are high efficiency percolation field,and controlled by the main part of channel genesis and have preferable storage capacity and high degree of reserve recovery,C and D level flow units are low efficiency percolation field and controlled by the channel edge,abandoned channel microfacies and so on,in which the space of residual oil is easily enriched.The theory and the research show that architectural of monosand body is the main factor controlling the underground heterogeneity which exerts the essential effect on the generation and the distribution of residual oil.

关 键 词：流动单元 单砂体 建筑结构 高分辨率 层序地层学 沉积微相 

分 类 号：TE121.1[石油与天然气工程—油气勘探]