公开(公告)号：EP2843187A4

公开(公告)日：2016-11-09

申请号：EP12748145

申请日：2012-05-25

申请人： KOREA INST GEOSCIENCE & MINERA

发明人： KIM YONGCHEL ,  KO KYUNG-SEOK ,  KIM JUNG SU

IPC分类号： E21B47/04 ,  G01F23/30 ,  G01F23/68 ,  G01F23/76 ,  G01V9/02 ,  H01R39/64 ,  H02G11/02

CPC分类号： G01V9/02 ,  E21B47/042 ,  G01F23/68 ,  G01F23/76 ,  G01V2210/645 ,  H02G11/02 ,  Y02A90/342

摘要： Disclosed herein is a device for tracking the position of a freshwater-saltwater interface of underground water in the coastal area. The device includes a buoyancy adjustment unit which comprises a pipe that has an internal space and is closed on a lower end thereof, a sealing cap which is removably coupled to an upper end of the buoyancy adjustment unit, a variable metal member which is attached to the sealing cap, a cordless measurement sensor which is provided under the lower end of the buoyancy adjustment unit, and a perforated pipe which is coupled to the lower end of the buoyancy adjustment unit and covers the cordless measurement sensor. Distilled water is supplied into the buoyancy adjustment unit, and a buoyancy of the buoyancy adjustment unit is adjusted depending on the amount of distilled water.