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随着社会发展需求的日益增大,我国的主要大型油田相继进入开发末期,出现不同程度的低效井,加之新增储油量增加缓慢,勘探难度和成本也越来越大,石油工业发展进入“瓶颈”时期。在这一时代背景下,稳定原油产量,最大限度地提高采收率,是开展油藏工程研究的主要任务,也是不断创新采油方案的终极目标。作为提高采收率的新兴技术,聚合物驱在各大油田中得到广泛应用。
With the increasing demand for social development, the major large-scale oilfields in China have entered the late stage of development one after another, with inefficient wells of different extents, coupled with the slow increase of new oil reserves, the difficulty and cost of exploration, and the development of the oil industry Into the “bottleneck” period. In this era, stabilizing crude oil production and maximizing oil recovery are the major tasks in reservoir engineering research and the ultimate goal of continuously innovating oil recovery programs. As an emerging technology to enhance oil recovery, polymer flooding is widely used in major oil fields.