%0 Journal Article
%T Classification and Evaluation of Micro-Pore Structures in the Ultra-Low Permeability Sandstone Reservoir<br>特低渗透砂岩储层微观孔隙结构分类评价
%A WANG Rui-fei
%A CHENG Ming-qiang
%A SUN Wei
%A <br>王瑞飞
%A 陈明强
%A 孙卫
%J 地球学报
%D 2008
%I 
%X With the technology of high pressure Hg injection, the ejection saturation (SE) parameter was defined. By the assessment performance parameter (E), the product of ejection efficiency (EW) and ejection saturation (SE), the characteristics of micro-pore structures were classified in three areas of Yanchang Formation in Odors Basin. The classified results coincide with the production characteristics. Based on the extent of ejection, it is considered that the efficiency can be improved by increasing the pressure difference in the medium-high permeability reservoir, and that the low-velocity water injection should be maintained in the ultra-low permeability sandstone reservoir so as to raise its exploitation effect.
%K ultra-low permeability sandstone reservoir
%K micro-pore structure
%K classification and evaluation
%K Ordos Basin
%K high pressure Hg injection
%K exploitation effect<br>特低渗透砂岩储层
%K 微观孔隙结构
%K 分类评价
%K 鄂尔多斯盆地
%K 高压压汞
%K 开发效果
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=1DF69A47DE80569EC8F859DF61571180&aid=0708514DFA112793CD7D9DC0AFCA43E5&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=0B39A22176CE99FB&sid=527AEE9F3446633A&eid=1D67BE204FBF4800&journal_id=1006-3021&journal_name=地球学报&referenced_num=6&reference_num=53