National Well Services Director
Shannon & Wilson
Jim Bailey serves as Shannon & Wilson’s National Well Services Director. He has more than 32 years of water supply development and ground water management experience. His water resource work has focused on municipal water supply including water rights, well design/construction, and evaluation of well performance issues. He has extensive experience in the coordination and supervision of well drillers, design of drilling programs, development of specifications for such services, and cost control. He is a nationally recognized expert in the area of well development and rehabilitation, and a frequent speaker at workshops on well performance and rehabilitation throughout the U.S. and Canada.
PLATFORM PRESENTER - Getting Through Rehab: Injection/Extraction Wells
Case Study in Maintaining Well Performance at Former Refinery Site
The routine operation of groundwater extraction and injection wells typically result in rapid declines in performance due to biological and physical plugging of screens and filter pack pore spaces. Most common rehabilitation approaches focus on chemical treatments along with mechanical agitation/surging which only provide temporal performance improvements.
At a former refinery site in Alaska, wells in a groundwater remediation system lose performance within a matter of months after a typical rehabilitation event. After six months the wells would require another rehabilitation event in order to maintain a minimum operational level. Research into other rehabilitation approaches lead to work being done in the City of Berlin, Germany for addressing well performance issue in their 700+ well field. The City has developed, through extensive research and testing, several innovative rehabilitation approaches that combine traditional and new technologies. These approaches were applied to wells at the Alaska refinery site to improve the quality of the rehabilitation event and also as an approach to extend the time between rehabilitation events by disrupting the formation of well clogging conditions.