本文選題：雙河油田 + 三元復(fù)合驅(qū)�。� 參考：《大慶石油地質(zhì)與開發(fā)》2017年06期

【摘要】：河南雙河油田綜合含水高達(dá)95.2%,采收率高達(dá)45.8%,已接近開發(fā)極限。為改善高含水、高采出程度油藏開發(fā)效果,2010年在雙河油田Ⅳ5-11層系開展弱堿三元復(fù)合驅(qū)油先導(dǎo)性礦場試驗。試驗表明,弱堿三元復(fù)合體系與油層及流體有較好的配伍性,不會造成對地面流程及油層的傷害。實施三元復(fù)合驅(qū)后,雙河油田IV5-11層系綜合含水率由97.8%下降到91.6%,產(chǎn)油量由38.8 t/d上升到166.3 t/d,試驗區(qū)已累計增油23.73×104t。實踐證明弱堿三元復(fù)合體系可以大幅度提高"雙高"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，

本文編號：1865179