河南双河油田弱碱三元复合驱矿场试验效果

发布时间：2018-05-09 07:49

  本文选题：双河油田 + 三元复合驱　； 参考：《大庆石油地质与开发》2017年06期

【摘要】：河南双河油田综合含水高达95.2%,采收率高达45.8%,已接近开发极限。为改善高含水、高采出程度油藏开发效果,2010年在双河油田Ⅳ5-11层系开展弱碱三元复合驱油先导性矿场试验。试验表明,弱碱三元复合体系与油层及流体有较好的配伍性,不会造成对地面流程及油层的伤害。实施三元复合驱后,双河油田IV5-11层系综合含水率由97.8%下降到91.6%,产油量由38.8 t/d上升到166.3 t/d,试验区已累计增油23.73×104t。实践证明弱碱三元复合体系可以大幅度提高"双高"油藏采收率。
[Abstract]:The comprehensive water cut of Shuanghe Oilfield in Henan Province is up to 95.2% and the recovery rate is up to 45.8%, which is close to the limit of development. In order to improve the development effect of reservoirs with high water cut and high recovery degree, pilot tests of weak alkali ASP flooding were carried out in Shuanghe Oilfield 鈪，

本文编号：1865179