Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir

任大忠; 孙卫; 黄海; 南珺祥; 陈斌

首页> 中文期刊> 《中南大学学报（英文版）》 >Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir

Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Actual sandstone micromodel was used in this work to conduct the microscopic waterflooding experiment of ultra-low sandstone reservoir,since the inside seepage characteristics of microscopic waterflooding process of Chang 8 ultra-low permeability sandstone reservoir of Upper Triassic Yanchang formation in Huaqing region of the Ordos Basin,China is difficult to observe directly.Combined with physical property,casting thin sections,constant-rate mercury injection capillary pressure and nuclear magnetic resonance,the influence of reservoir property on the waterflooding characteristics in pores were analyzed and evaluated.Seepage paths of waterflooding characteristics were divided into four types:homogeneous seepage,reticular-homogeneous seepage,finger-reticular seepage and finger-like seepage,the waterflooding efficiency of which decreases in turn.More than 70%of residual oil occurs as flowing-around seepage and oil film.Physical property,pore structure and movable fluid characteristics are all controlled by digenesis and their impacts on waterflooding efficiency are in accordance.Generally,the pore throat radius size and distribution and movable fluid percentage are closely related to waterflooding law.

著录项

来源
《中南大学学报（英文版）》 |2017年第9期|2134-2144|共11页
作者
任大忠; 孙卫; 黄海; 南珺祥; 陈斌;
展开▼
作者单位

1. State Key Laboratory of Continental Dynamics;

Northwest University 2. Department of Petroleum Engineering;

Xi'an Shiyou University 3. Department of Petroleum Engineering;

Xi’an Shiyou University 4. National Engineering Laboratory of Low Permeability Oilf;

展开▼
原文格式 PDF
正文语种 chi
中图分类 TE357.6;
关键词

相似文献

中文文献
外文文献

Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir

摘要

著录项

相似文献

相关主题

期刊订阅