鄯善油田三间房组油层微观水驱油特征  

MICROCOSMIC WATER-DERIVE CHARACTERISTICS OF SANJIANFANG FORMATION RESERVOIR IN SHANSHAN OILFIELD

作　　者：李劲峰[1] 曲志浩[1] 孔令荣[1] 赵阳[1] 

机构地区：[1]西北大学地质系,西安710069

出　　处：《新疆石油地质》1999年第5期422-425,共4页Xinjiang Petroleum Geology

摘　　要：利用真实砂岩微观模型研究了鄯善油田三间房组油层微观水驱油特征。实验表明，扇三角洲前缘亚相与辫状河三角洲前缘亚相的分流河道沉积驱油效率无多大差异，并且在一定范围内，驱油效率随压力的升高而上升。三间房组的油层裂缝80％为充填缝，对水驱油过程无多大影响。由于三间房组油层强亲水，自吸对提高油层驱油效率是有利的。三间房组油层微观水驱油效率总体上高于安塞油田王窑区、科尔康油田白2块、五号桩油田桩23块三个低渗透油田（区块）。The microcosndc water-drive characteristics of Sanianfang formation reservoir in Shanshan oilfield was studied by using true sandstone micromodel. The result showed there is no clear difference in sweep efficiency between distributare channel deposits of fan-delta front subfacies and braided-delta front subfacies, and sweep efficiency increases with pressure in a certain range. Frature of 80% in Sanianfang oil formation is filling fracture, which has litile effect on sweep efficiency. Imbibition is favourable for increasing the sweep efficiency in Sanjianfang reservoir because of its strong water wettability, The overall rulcrocosmic sweep efficiency in Sanjianfang reservoir is superior to three low-permeability oiffields(Wangyao area of Ansai oiffield, Block Bai 2 of Kerkang oilfield and Block Zhuang 23 of Wuhaozhuang oilfield).

关 键 词：鄯善油田 侏罗纪 油层 砂岩 驱油效率 水驱油 

分 类 号：TE341[石油与天然气工程—油气田开发工程] TE357.6