摘要
针对任丘雾迷山组油藏高含水后期的开采特点及暴露的主要矛盾，全面实施了“控注降压”、“封堵水淹大孔道”、“选择性提液”等三项技术措施。经过两年多的生产实践证明：它对于控制含水上升，减少产水量，发挥边、底水天然能量的作用，减少注水量以及提高中小裂缝的波及程度，减缓产油量递减和提高水驱采收率，效果明显。
hree important technical measures . namely , decreasing the forniation pressure by con-trolling water injection, plugging up big flooding channels and selectively lifting fluid, aretaken in view of the oil recovery characteristics and major troubles of Wumishan-formationreservoir during high watercut stage. Two years' production practice has demonstrated thatthese measures are quite effective in controlling watercut, reducing water production, en-hancing natural drive by edge water and bottom water, decreasing water injection, raisingwaterflood swept degree in middle and small fractures, slowing up oil production decline,and improving waterflooding recovery ratio.
关键词
油藏
高含水期
控水稳油
采油率
油田注水
buried hill , oil accuinulation , high watercut stage , water injection
