f A Trial Application of Streaming Potential to Detecting Underground Water Movement while Pumping up

We are researching about the streaming potential for the purpose of detecting groundwater-flow utilizing the electrical potential clistribution generated by watermovement. Sill(1983) theoretically calculated the streaming potential ctistribution, and Ishido and Mizutani (1981) investigated the theoretical basis and carried out experimental studies. At a geothermal area, the streaming potential is used to investigate the geothermal heat-flow. From an engineering point of view, the determination of groundwater-flow or permeability using the streaming potential distribution seems an attractive technique. We investigated the streaming potential in field and laboratory experiments and investigated its nature during water-extraction at a well.