国内油田深部调剖技术的研究进展

Technologies of in-depth profile control in China

严重的油层非均质性致使水驱和聚合物驱油效果差,常规堵水调剖技术已不能满足油田正常生产需求。因此,近年来提出并发展了深部调剖技术(深部液流转向技术),在改善高含水油藏水驱和聚合物驱的开发效果方面取得了显著效果。通过全面分析我国深部调剖技术研究现状,提出了深部调剖技术的发展趋势,即在充分认识油藏现状的基础上,实现对高含水油藏和聚合物驱油藏深部水流优势通道的干预,使液流转向,从而改善高含水油藏水驱和聚合物驱效率。

During the process of water flooding and polymer flooding, the displacement efficiency is poor because of the heterogeneity of reservoirs, conventional technology of profile control and water shutoff can no longer meet the needs of constantly production demand of oilfield. As a result, an in-depth profile control technology is developed in recent years, and a significant effect is gained in improving the development effects of water flooding in high water-cut reservoirs and polymer flooding. In this paper, the in-depth profile control technology is widely analyzed, and the development tendency of this technology is proposed, that is, a complete studies of in--depth profile control and polymer flooding should be developed based on the sufficient understanding of reservoir status, advantage channels should be interposed and fluids diverted, and the displacement efficiency of water flooding for high water-cut reservoirs and polymer flooding would be improved.