同井抽注技术在渤海油田的首次应用

First Application of Technology of both Pumping and Injecting in Same Well in Bohai Oilfield

渤海地区大部分油井都已处于开发中后期,随着提高采收率压力的增大,有很多老井需要增产措施,例如注水,注聚合物等,海洋石油钻采成本高,开发难度大。目前已经在同一口井内实现分层注水和抽水,同时实现两种作用,节约了再钻一口井的开发成本,也对以后实现同井抽油抽水和分层注水注聚提供技术保障。

In the region of Bohai,most of oil wells are in their middle or late exploitation period,many old wells need to be stimulated such as water injection or polymer injection etc. as the rise of requirement of increasing recovery factor. Developing oil offshore is difficult,and the cost of drilling and recovering is very high. So far,it has been successfully done that water pumping from and injecting to different layers at the same time in the same well,so as to economize the development cost of drilling another well,and provide technique for oil or water pumping and water or polymer injection in the same well.