Reconfiguring In-Situ Thermal Oil Recovery facilities for Steam Assisted Geothermal Power (SAGP) Extraction

重新配置蒸汽辅助地热发电 (SAGP) 开采的原位热油回收设施

• 批准号: 556563-2020
• 负责人: Hemmati, ArmanA
• 金额: $ 1.53万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=759969
• 关键词: Reconfiguring; Situ; Thermal; Oil; Recovery

Geothermal energy has a great potential to play a growing role to lower the carbon footprint of hydrocarbon energy extraction. However, it is still in its infancy in Canada. Alberta has a natural advantage in developing geothermal energy extraction technologies given its expertise in subsurface technology and geophysics. Furthermore, years of oil recovery by steam injection (e.g., Stream Assisted Gravity Drainage - SAGD) has resulted in the accumulation of substantial amounts of high-temperature (170 degree C) steam underground. This project will develop technologies that takes advantage of this wasted thermal energy for power generation. We refer to the process as Steam Assisted Geothermal Power (SAGP). The final aim of this project, with the support of Imperial Oil, is to develop the first SAGP pilot in Alberta. The proposed technology works based on recommissioning of abandoned enhanced oil recovery wells (e.g., SAGD) with Steam-to-Oil-Ratio of >3 to SAGP operations. It takes advantage and re-purposes existing facilities for oil recovery and the thermal capacity of reservoirs to extract energy. There are 2 technology developments to be completed in this project: (1) Next generation thermal energy harvesting using membranes that generate power and decontaminate waste-water simultaneously; (2) design modifications to subsurface tubing in existing facilities with a lower rate of heat loss limited to a temperature drop of 20 degree C. The proposed technologies will provide a new source of net-zero-carbon energy at relatively low cost.

地热能具有巨大的潜力，可以发挥越来越多的作用来降低碳氢化合物萃取的碳足迹。但是，它仍处于加拿大的起步阶段。艾伯塔省在开发地热能技术方面具有自然优势，鉴于其地下技术和地球物理学方面的专业知识。此外，通过蒸汽注入的多年回收（例如，流辅助重力排水-SAGD）导致了大量高温（170摄氏度）地下蒸汽的积累。该项目将开发利用这种浪费的热能来发电的技术。我们将该过程称为蒸汽辅助地热力（SAGP）。在帝国石油的支持下，该项目的最终目的是开发艾伯塔省的第一位SAGP飞行员。拟议的技术是基于对废弃的增强的石油回收井（例如SAGD）的推荐工作，其蒸汽到油比为> 3> 3。它利用并重新利用现有的设施进行石油回收和储层的热能提取能源。该项目将完成2个技术发展：（1）使用膜同时产生动力和衰减的膜； （2）对较低的热量损失率限制为20度的现有设施中地下管的设计修改。拟议的技术将以相对较低的成本提供新的净零碳能量来源。