渤海油田调剖技术现状及发展方向

Present situation and development direction of profile control technology in Bohai oilfiel

渤海油田因地层原油黏度大、储层非均质性强、注采井距大及生产层厚等诸多因素,导致注入水低效甚至无效循环,含水快速上升,水驱效率低。渤海油田应用调剖技术改善注水效果和控制油井含水,取得了较好的效果。从2002年以来,渤海共计矿场应用调剖313井次,累计增油1237446m^(3)。为更好的发挥调堵技术的潜能,助力渤海油田稳产上产,总结和分析了渤海油田调剖技术现状、研究进展,并指出了今后的发展方向。

Many factors in Bohai oilfield,such as high formation crude oil viscosity,strong reservoir heterogeneity,large injection production well spacing and production layer thickness,lead to inefficient or even ineffective circulation of injected water,rapid rise of water cut and low water drive efficiency.Profile control technology has been applied in Bohai oilfield to improve water injection effect and control water cut in oil wells,and good results have been achieved.Since 2002,profile control has been applied in 313wells in Bohai oilfield,with a cumulative oil increase of 1237446m^(3).In order to give better play to the potential of plugging control technology and help Bohai oilfield stabilize and increase production by 40million tons,this paper summarized and analyzed the current situation,research progress and development direction of profile control technology in Bohai oilfield.