孤岛油田零散低品位储量开发实践与认识  

Practice and knowledge on sporadic low-grade reserve development of Gudao oil field.

作　　者：毕秋军[1] 宋书君[1] 张本华[1] 乔明全[1] 刘军[1] 

机构地区：[1]胜利石油管理局孤岛采油厂

出　　处：《石油勘探与开发》2000年第6期60-62,共3页Petroleum Exploration and Development

摘　　要：孤岛馆 1+2砂层组零散分布于整个孤岛油田 ,是该油田岩性 构造复合油藏的产层。在依靠天然能量的常规试采方式下 ,影响该砂层组开采效果的主要因素有 :油层多而薄、储量分散、油砂体小 ;天然能量弱 ,单井产能较低 ;成岩作用差 ,泥质含量高 ,水敏性强 ,导致油层在开采过程中出砂严重 ,加上出砂粒度较细 ,防治难度大。为了获得该砂层组较高的采收率 ,开辟了中 30 8先导性注水开发试验区 ,优选了馆 1+2油藏注水高效开发配套技术。经推广应用 ,使馆 1+2油层的采收率由注水开发前的 4.2 %增加到目前的 16.3% ,实现了分布零散、薄层、出砂严重低品位油藏的高效开发。参 2 (毕秋军摘 )The Member Ng1+2 of Guantao Formation in Gudao oil field is the type of fluvial abandoned channel and flood plain deposit, where the oil-bearing bed is abound and thin, the reserves is disperse, the oil reservoir is small and closed, the natural energy is weak, the productivity of single well is low, the diagenesis is unconspicuous, the shale content is high and the water-sensitive is obvious, all these result in serious sanding in exploitation and difficulties in control. Production wells in this zone exhibit the phenomena called “three lows one more”(low rate of oil production, fluid rate and fluid levels of wells and more shut-down wells) under conventional production test relying on natural energy. In order to get a higher oil recovery factor from this zone, based on researches on oil reservoir and properties of petroleum and synthetical proof, a pilot test area of waterflooding development called Zhong 30-8 was established in 1991, thereby technology from waterflooding development of Member Ng1+2 was formed. After this technology is spread, the recovery factor increases from 4.2% to 16.3%, and efficient development of sporadic, thin and serious sanding reservoir is realized.

关 键 词：孤岛油田 零散低品位储量 油田开发 注水开发 

分 类 号：TE349[石油与天然气工程—油气田开发工程]