加拿大稠油聚合物驱研究进展及应用

Progress in Research and Application of Polymer Flooding for Enhanced Heavy Oil Recovery in Canada

曹绪龙 李振泉 宫厚健 董明哲 李亚军

CAO Xulong LI Zhenquan GONG Houjian DONG Mingzhe LI Yajun

加拿大稠油资源丰富且多为薄层稠油，热采方法热量损失大，经济效益低。而近几年水平井技术的发展，为化学驱特别是聚合物驱技术的应用提供了重要的基础。目前，水平井加聚合物驱技术已经成为加拿大稠油开采的一种经济有效的手段，加拿大多个石油公司已经开始应用这一技术，并且生产规模越来越大。本文从室内 研究、机理探讨和现场应用三方面综述加拿大稠油化学驱研究与应用的进展，以期为我国的稠油开采提供一定的借鉴。图6 参41

Thermal methods have been successfully applied in many heavy oil fields，however，the reservoirs at great depth or thin pay zones are not suitable candidates for thermal methods. In recent years，the development of horizontal well provides a significant foundation for the application of chemical flooding，especially for polymer flooding for heavy oils. Polymer flooding in combination with horizontal wells has become a promising technology for enhanced heavy oil recovery. Many oil companies in Canada have used this technology to improve waterflooding of heavy oils，and the field results are promising. In this paper，the advancement in laboratory research and field application of polymer flooding for heavy oil recovery in Canada was reviewed from the aspects of laboratory study，exploration of mechanism and field application. It is expected to provide a prospect of applying polymer flooding for heavy oil recovery in China.