Although bottom-hole temperature (BHT) data is routinely collected with bottom-hole pressure (BHP) data during CO₂ injection in geological storage projects, it is seldom analyzed in a quantitative manner. However, the BHP and BHT signals do exhibit correlated behavior. This study proposes a practical approach for using BHT data from warmback (no injection) periods, in conjunction with the amplitude of BHP and BHT changes during the preceding injection event, to estimate formation permeability. The methodology is demonstrated using data from the AEP Mountaineer project in USA where CO₂ injection was carried out into a saline aquifer. Estimated permeability values from the proposed approach are in good agreement with those obtained from transient pressure analysis of BHP data from the falloff period.

尽管在地质存储项目中通常在注入CO _2的过程中定期收集井底温度（BHT）数据和井底压力（BHP）数据，但很少对其进行定量分析。但是，BHP和BHT信号确实表现出相关的行为。这项研究提出了一种实用的方法，可以利用回暖（无注入）期间的BHT数据，结合前一次注入事件期间的BHP和BHT变化幅度，来估算地层渗透率。使用来自美国AEP Mountaineer项目的数据证明了该方法，其中CO ₂注射在盐水层中进行。所提出方法的渗透率估算值与从衰减期开始对BHP数据进行瞬态压力分析所得的渗透率值非常吻合。