摘要
针对大庆油田聚合物驱后油层中依然存在50%左右的地质储量的实际情况,在分析聚驱后的油藏特点及采油技术面临的困难的基础上,从提高采收率工艺、精细调堵工艺、精细改造工艺、水平井挖潜剩余油工艺4个方面详细介绍了聚合物驱后的采油技术现状,并对每个方面所涉及的各项技术进行了系统分析和应用评价。最后,根据聚合物驱后采油工艺的发展要求和迫切性,在现有技术应用的基础上,提出了相应的攻关方向,主要包括高效调驱、精细调堵、水平井挖潜配套3个大的方面共8项技术。
There are still about 50% geologic reserves existing in the oil zones after polymer flooding. In view of this, based on analyzing the characteristics of oil reservoirs and the technical difficulties facing oil recovery after polymer flooding, the current status of the oil recovery technique after polymer flooding is introduced in detail. It consists of the EOR technology, the fine plugging control technology, the fine transformation technology, and the technology tapping the residual oil in horizontal wells. All techniques related to the four technologies are systematically analyzed and their application is evaluated as well. Finally, according to the requirement and urgency of the development of the oil recovery technology, on the basis of the application of the currently used techniques, corresponding technical problems are proposed, mainly including eight techniques matching to such three aspects as the high - efficiency flooding control, the fine plugging control, and the tapping of potentials of horizontal wells.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2008年第3期1-6,共6页
Oil Drilling & Production Technology
关键词
聚合物驱后
采油工艺
剖面调整
水平井挖潜
after polymer flooding
oil recovery technology
profile control
potential tapping of horizontal well
