摘要
杏南作业区油井主要产建为2000—2001年和2008—2009年,随着开发时间的延长,油井含水上升速度明显上升,含水快速上升不利于油田长期稳产。自2008年实施堵水调剖以来,累计实施常规堵水调剖86井次(60口),实施堵水后油井含水上升速度有所减缓,但措施有效期较短。后期实施的二次、三次堵水效果均不理想,自2017年开始实施聚合物微球调剖,目前完井6口,采取措施后井组整体表现为液量、油量小幅下降,含水整体保持平稳,油井见效比例为34.5%,由于完井井数较少,整体效果待观察。
The main production and construction of oil wells in Xingnan operation area are 2000-2001 and 2008-2009.With the extension of development time,the water-bearing rising rate of oil wells increases obviously,and the rapid increase of water content is not conducive to long-term stable production of oil?elds.Since the implementation of water shutoff and pro?le control in 2008,the cumulative implementation of conventional water shutoff and pro?le control 86 wells(60)has slowed down the water-bearing rate of oil wells after water shut-off,but the effective period of the measures is shorter.The second and third water blocking effects were not satisfactory in the later stage.Since 2017,the polymer microspheres have been pro?led.At present,there are 6 completions.After the measures,the overall performance of the well group is reduced by the liquid volume and oil volume.Smooth,the effective ratio of oil wells is 34.5%.Due to the small number of completion wells,the overall effect is to be observed.
出处
《化工设计通讯》
CAS
2019年第4期232-233,共2页
Chemical Engineering Design Communications
关键词
杏南
含水上升率
微球调剖
递减
Xingnan
water content rising rate
microsphere profile
control
