An analysis of the reinjection attenuation of the Guantao Group geothermal reservoir in the Tianjin Area

Reinjection in the Guantao geothermal reservoir was carried out at first and most frequently in the Tianjin area.However,at every time the reinjection rate rapidly declines after a few hours or days.The air-logged influence of reinjection liquids is mostly considered as the reason for the reinjection attenuation.Based on the test data,the major affecting factors are examined.The results show that a series of obstruction due to the reaction of reinjection liquids and reservoir in the course of co...