Author(s): Wang Chang-sheng, Yang Wei, Wang Zhen-fu, Shaanxi Weinan Corporation of Geological Engineering, Shaanxi Corporation of Geological Engineering
Pages: 94-97
Year: 2016 Issue:  1
Journal: Geology of Shaanxi
Keyword:  geothermal well; drifting; rust removal; drainage hole; well washing; repair;
Abstract: This paper introduces the repair technology of geothermal well,including application of four wing scraper bit for probing hole,steel wire bit for wall rust removal,high pressure jet for removal of hole blockage from water filter pipe and airlift oscillation method for well washing.