摘要
萨北油田中区西部三次加密与三次采油结合(简称“两三结合”)试验证明,虽然三次加密和三次采油是2种截然不同的驱油方式,但从井网的相互利用、开采对象的相互结合等方面是完全可以实现的,在三次加密井进入特高含水期后,对薄差油层再开展聚合物驱能够进一步改善薄差油层的开发效果,提高薄差油层采收率,增加可采储量。2004年在萨北油田北二东密井网地区开展了“两三结合”先导性试验的区块选择、井网部署、开采对象的确定及层系优化组合等研究。在介绍试验区选择及井网部署的基础上,重点对开采对象的特点及层系优化组合进行分析。
'Two + three' test is the polymer flooding test in thin-poor oil layers of ClassⅢreservoir with effective thickness less than 0. 5m and permeability less than 0. 5μm2. This test has significant meaning to acquire the desired results by assuring polymer injection quality. Through the analysis of one pilot injector in the test area, this paper discusses the effect of various factors on polymer flooding quality from the view of making-up technique, injected water quality, test analysis and sampling etc. , and presents some corresponding improvement measurements, proving guidance for overall application of polymer flooding in the test area.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2006年第B08期83-84,共2页
Petroleum Geology & Oilfield Development in Daqing
关键词
三类油层
注聚特点
层系优化组合
classⅢoil reservoir
polymer flooding
injection quality
