Multi-level analysis of field synergy in the displacement mechanisms of heavy oil thermal recovery

作者：Liu Yang; Cheng Qinglin^*; Wang Xuxu; Xiang Xinyao

来源：Acta Geotechnica, 2014, 9(1): 59-65.

DOI：10.1007/s11440-013-0219-6

• Displacement mechanism
• Field synergy
• Heavy oil thermal recovery
• Multi-level analysis
• Potential field structure

One of the major problems of heavy oil thermal recovery is the inadequacy of understanding the multi-field coupling displacement mechanisms to improve the oil production and extraction ratio. From the perspective of "force" and "flow" in thermodynamics, oil displacement fields are divided into three groups: destination, driving and resistance potential fields. Based on the seepage law, the compositional structure of driving and resistance potential fields has been established by making use of non-equilibrium thermodynamics. In addition, coupling indexes among driving, resistance and a combination of both potential fields can be deduced. Then, the main process of multi-level analysis of oil displacement mechanism of field synergy in the process of heavy oil thermal recovery can be put forward. A practical multi-level case study of typical hot-water flooding displacement can provide useful information and guidance to enhance the displacement process.

• 出版日期2014-2
• 单位东北石油大学; 中国石油大学（北京）