杏南聚合物微球调剖效果评价
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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.
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.
引文