Study of additives in oil sands recovery processes

油砂回收过程中添加剂的研究

• 批准号: 518143-2017
• 负责人: Chen, Zhangxing
• 金额: $ 16.97万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=694647
• 关键词: Study; additives; oil; sands; recovery

The steam assisted gravity drainage (SAGD) process has proven to be the most promising technology for thecommercial in-situ recovery of heavy oil and bitumen in Alberta, Canada. In thick reservoirs, the SAGDprocess can recover over 50% of the original oil in place (OOIP), with a steam-oil ratio (SOR) of 2.5 to 4.0.But for thin reservoirs that are less than 15 m, partially depleted and have low oil saturation, the SOR can bemuch higher. The higher the SOR, the more costly the recovery. SAGD is capital intensive, is water (steam)dependent, and is not sustainable at the current low oil prices. The governments of Alberta and Canada have amandate to lead the world in greenhouse gas (GHG) reduction and be a world supplier of energy from our oiland gas holdings. To meet these competing demands, the petroleum industry is seeking to understand reservoirdynamics with the intention to tackle challenges associated with oil and gas production while reducing costs.This project seeks to use solvent additives to the SAGD process to reduce the water used, decrease the GHGemissions and decrease production costs while creating a viable prospect to apply steam and solvents in thefield.

蒸汽辅助重力泄油（SAGD）工艺已被证明是加拿大艾伯塔省重油和沥青商业化原位采收最有前途的技术。在厚油藏中，SAGD工艺可以采收50%以上的原始石油地质储量（OOIP），汽油比（SOR）为2.5~4.0。但对于小于15 m、部分枯竭、含油饱和度较低的薄层油藏，SOR可以更高。 SOR 越高，恢复成本就越高。 SAGD 是资本密集型的​​，依赖水（蒸汽），并且在当前的低油价下不可持续。艾伯塔省和加拿大政府已承诺在温室气体 (GHG) 减排方面处于世界领先地位，并通过我们的石油和天然气资产成为世界能源供应商。为了满足这些相互竞争的需求，石油行业正在寻求了解油藏动力学，以应对与石油和天然气生产相关的挑战，同时降低成本。该项目寻求在 SAGD 过程中使用溶剂添加剂，以减少用水量、减少温室气体排放并降低生产成本，同时创造在油田应用蒸汽和溶剂的可行前景。