茨34块CO_2+水段塞驱工艺技术研究  

RESEARCH ON CO_2+WATER SLUG FLOOD TECHNOLOGY IN CI34 BLACK

作　　者：王旭[1] 伍晓妮[2] 于兰春[2] 孙少亮[2] 李光前[2] 

机构地区：[1]中国地质大学能源系 [2]辽河石油勘探局工程技术研究院

出　　处：《钻采工艺》2006年第4期51-52,66,共3页Drilling & Production Technology

基　　金：中国石油天然气集团公司项目"N2泡沫采油技术应用研究"的子课题;项目编号:200622-1。

摘　　要：茨榆坨油田茨34块经过近20年的常规开采,面临着油层亏空、注水开发采收率低、水淹情况比较严重等问题,急需进行开发方式的转换。通过油藏数值模拟,发现剩余油分布主要集中在茨15-156井组,选定该块茨15-156井组进行CO2+水段塞驱现场试验。现场试验表明,该块运用CO2+水段塞驱开采方式进行开发方式的转换是可行的,增油效果明显。该区块试验的成功为类似区块开发方式的成功转换提供依据。After general exploitation in recently 20 years, many problems exists in Ci34 black of Ciyutuo oilfield, such as serious reservoir depletion, lower waterflood recovery factor, serious watered-out reservoir. The general recovery method should be changed. By using reservoir numerical simulation, it is found that remaining oil distribution mainly collects at CI15-156 well team. So, this well team is selected to carry out CO_2+water slug flood test. The test proved that the CO_2+water water slug flood mode is feasible and the increased oil produce is obvious. This test's success can provide the base for those similar black's development conversion.

关 键 词：CO2+段塞驱 数值模拟 调堵 调驱 提高采收率 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]