Bitumen recovery from grosmont carbonates by low pressure solvent and hot water injection

低压溶剂和热水注入从格罗斯蒙碳酸盐中回收沥青

• 批准号: 385291-2009
• 负责人: Babadagli, Tayfun
• 金额: $ 2.15万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=463475
• 关键词: Bitumen; recovery; grosmont; carbonates; low

Solutions for heavy-oil recovery in consolidated/unconsolidated sandstones have been proposed and some are currently in the commercial phase, including different versions of steamflooding. More challenging cases are heavy-oil fractured carbonates where, due to unfavorable wettability or thermal expansion if heat is introduced during the process, the recovery is usually limited only to matrix oil drainage by gravity. Wettability alteration is thought to occur at elevated temperatures, which are difficult to achieve in deep reservoirs. Thus, improvement of matrix oil recovery requires different methodologies.

已经提出了固结/松散砂岩中重油采收的解决方案，其中一些解决方案目前处于商业阶段，包括不同版本的蒸汽驱。更具挑战性的情况是重油压裂碳酸盐岩，由于在加工过程中引入热量时会出现不利的润湿性或热膨胀，采收通常仅限于通过重力排出基质油。润湿性改变被认为是在高温下发生的，而这在深层储层中很难实现。因此，提高基质油采收率需要不同的方法。