维普中文期刊产品整合服务

Impact of chlorites on the wettability of tight oil sandstone reservoirs in the Upper Triassic Yanchang Formation,Ordos Basin,China

查看全文 作　　者：Zhongnan [1,2,3]WANG;Xiaorong [3]LUO;Keyu [1,2,4]LIU;Yuchen [1,2]FAN;Xiangzeng [5]WANG 高影响力作者 机构地区：[1]Key Laboratory of Deep Oil and Gas,China University of Petroleum(East China),Qingdao,266580,China;[2]School of Geosciences,China University of Petroleum(East China),Qingdao,266580,China;[3]Key Laboratory of Petroleum Resources Research,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,100029,China;[4]Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology,Qingdao,266071,China;[5]Shanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi’an,710075,China高影响力机构 出　　处：《Science China Earth Sciences》索引2021年第64卷第6期,共11页高影响力期刊 基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant Nos.XDA14010202,XDA14010401);the National Natural Science Foundation of China(Grant No.41821002)。 摘　　要：Wettability is an essential property of reservoirs that is of great importance for enhancing oil recovery(EOR)and oil migration.The wettability of reservoirs is generally believed to be strongly affected by mineral compositions but it is not always the case.An integrated study of petrography and wettability was carried out to determine the impact of chlorite minerals on the wettability of the sandstone reservoirs in the Upper Triassic Yanchang Formation.Chlorites are found to be commonly present in the reservoir sandstones as detrital grains,rim-shaped cements,and biotite-chloritized forms with the pore peripheries being largely coated by chlorite,which is the main mineral in direct contact with pores.At pore scale,the wetting state of chlorites can either be oil-wet or water-wet in the tight sandstone reservoirs depending on wettability alteration by oil charge.Chlorites in contact with pores occupy a large of proportions of oil-wet pore walls and are crucial for the formation of oil-wetting state of reservoir sandstones.At core scale,the contents of chlorites in direct contact with pores do not correlate well with the AmottHarvey index due to other factors such as heterogeneity,oil-bearing degrees of samples. 关 键 词：WETTABILITY CHLORITE Pore scale Core scale Yanchang Formation Ordos Basin
相关文献

参考文献(63)

引证文献(1)

耦合文献(142)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费