Treatment of Plugging Accident in Deep Geothermal Well and the Prevention

Abstract:

By the analysis on the plugging accident in a deep geothermal well caused by gravel-filling or waterstopping mud ball and cementing pebble throwing, positive impact and reverse suction technology were put forward. The paper introduced the equipment and treatment technology for this kind of accident.

Key words:deep geothermal well; plugging accident; positive impact; reverse suction; cementing; gravel-filling