热水井数字化气汞观测影响因素讨论

Influencing factors to the observation of gas Hg in hot water well

汞是地下流体预报地震的灵敏组分之一,高温承压自流井、温泉区自流井的水汞更是携带大量的地下信息,特别是水汞异常在地震之前的表现有目共睹。2001年首都圈范围内的一些水汞观测实现了数字自动记录。由于汞本身的物理化学特性以及观测仪器的使用条件所限,经过近3年的观测发现,对于热水井的气汞数字化自动记录,捕汞管、供电系统、脱气装置、气路的冷却与除湿是保证气汞测项连续稳定,提高记录地下信息灵敏性的关键因素。

Hg observation is one of the effective approaches for earthquakes prediction, especially the observation of water Hg in hot artesian well. All the observations of water Hg in Capital area have been digitized since 2001. After 3 years observation we found, tube of catching Hg, degasification device, cooling and dehumidification of gas tube is the key factors of data quality.