Study on Flow-Units Based on Hierarchical Analysis in Jiyuan Area, Ordos Basins
详细信息
- 责任者：Wu Xiaobin (College of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Hou Jiagen
- 刊名：Journal of Jilin University
- 出版年：2011
- 卷期：41(4)
- 关键词：低渗透储集层 ; low permeability reservoirs ; 层次分析 ; analytical hierarchy process ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.1013-1019
- 图表：5 illus., 2 tables, 18 refs.
- 分类号：1003
- 出版序号：695
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
Using the method of multi-parameter statistical cluster analysis,the flow-units of Chang4+522 single sand bed of Yanchang Formation are divided to A category, B category and C category. The experiment of micro-water-flooding describes the different of pore structure, micro-water-flooding seepage features and oil displacement efficiency diversity. And the rationality of classification results is verified by the experiment from the viewpoint of dynamic analysis.It suggests that: A-type and B-type flow-units have the characteristics of thicker of sandstone and higher FZI, good-connectivity, lower displacement pressure, and the flow-unit of A and B are beneficial to higher-yield area in Jiyuan oilfield. The flow-unit of C has bad water-flooding, and is the benefit area of remained-oil distribution and the potential position of increasing productivity.