Experimental Analysis on Micro-Anisotropy of Chang 8 Reservoir in Heshui Area,
详细信息
- 责任者：Chen Jie (College of Geo-Resources and Information ; China University of Petroleum ; Dongying 257061 ; China) ; Zhou Dingwu
- 刊名：Journal of China University of Petroleum
- 出版年：2010
- 卷期：34(4)
- 关键词：非均质性 ; heterogeneity ; 砂岩储集层 ; sandstone reservoirs ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.13-18
- 图表：4 illus., 1 table, 12 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
The micro-anisotropy of Chang 8 reservoir in Heshui area in Ordos Basin was analyzed by real sandstone micro-pore model experiment. The results show that Chang 8 reservoir has heavy micro-anisotropy, and the better the quality of the reservoir is, the heavier the micro-anisotropy is. The sedimentary microfacies and dissolution are the main factors affecting the micro-anisotropy. The micro-anisotropy is the inner reason affecting the oil displacement effect of waterflooding and remaining oil distribution. Based on a large sum of research on the four main types of pore structures of Chang 8 reservoir in study area, it is better to make three types of waterflooding development schemes according to the experimental results, the remaining primary pores between grains and the dissolved pores belong to the first one, the micro-cracks belong to the second one, and the micro-pores between subsequent mineral belong to the third one.