This study focuses on the operational dynamic data collected from the injection and observation well of Aquistore project and discusses their implication and lessons learned. The operational dynamic data discussed herein include the pre-injection water injection/falloff, injection history, downhole gauge data recording from injection well, production logging (spinner survey), and CO₂ saturation logging. After completing the Aquistore injection well, pre-injection tests were used to analyze the well performance and injectivity, and to identify formation fracturing pressure. The temporal evolution of injectivity was investigated with the CO₂ injection history and corresponding observed bottomhole pressure data. Three injectivity states were identified and used for dividing the entire injection history into different injection periods. In general, injectivity improves as injection continues. Deterioration in injectivity after the shut-in period was repeated until the first quarter of 2016 and was not observed afterwards, possibly suggesting restoration of damaged zone from the freshwater introduction. Change in injectivity state from the second quarter of 2016 is consistent with speculation on rate dependent injectivity. Possible mechanisms were noted and discussed for this rate dependency. Spinner surveys on April 20, 2015 and February 23, 2016 providing the partitioning of CO₂ inflow in different perforation zones showed the temporal change in well performance. Two reservoir saturation monitor logs on February 24, 2016 and May 11, 2017 provided the information on CO₂ breakthrough at the observation well. Compared to baseline CO₂ saturation logs, the formation fluid evaluation shows no CO₂ in the formations above the injection zone for either the injection or observation wells.

这项研究的重点是从Aquistore项目的注水井和观察井收集的运行动态数据，并讨论了它们的含义和经验教训。本文讨论的操作动态数据包括注水前注水/注水，注水历史，注水井的井下仪表数据记录，生产测井（旋压测量）和CO ₂饱和度测井。在完成Aquistore注入井后，使用预注入测试来分析井的性能和注入量，并确定地层压裂压力。用CO ₂研究注入性的时间演变注入历史和相应的观测井底压力数据。确定了三个注入状态，并将其用于将整个注入历史划分为不同的注入期。通常，随着注入的继续，注入能力会提高。停产期后，注入性的恶化一直持续到2016年第一季度，此后未观察到，这可能表明从淡水引入后恢复了受损区域。从2016年第二季度开始，注入状态的变化与对速率依赖注入的推测相一致。注意到并讨论了这种速率依赖性的可能机制。2015年4月20日和2016年2月23日的Spinner调查提供了CO ₂的分区不同射孔带的流入表明井眼性能随时间变化。2016年2月24日和2017年5月11日的两个储层饱和度监测日志提供了观察井中CO ₂突破的信息。与基线CO ₂饱和度测井曲线相比，对于注入井或观察井，地层流体评估显示在注入区以上的地层中没有CO ₂。