SELF-POTENTIAL STUDY FOR LABORATORY MEASUREMENTS OF ELECTROKINETIC POTENTETIAL FROM FLUID FLOW IN POROUS MEDIA

PROCEEDINGS JOINT CONVENTION BALI 2007
The 32nd HAGI, The 36th IAGI, and The 29th IATMI Annual Conference and Exhibition

SELF-POTENTIAL STUDY FOR LABORATORY MEASUREMENTS OF ELECTROKINETIC POTENTETIAL FROM FLUID FLOW IN POROUS MEDIA

Hamzah, M.1,2, Djoko, S.1, Wahyudi, W.P.1 , Sulistijo, B.3

1. Department Geophysics Engineering ITB.
2. Physics Department, Hasanuddin University
3. Department Mining Engineering ITB

ABSTRACT

Self-potential is potential difference of parameters generated by various of physical properties of subsurface. For example by fluid flow, salinity, hydrolic conductivity, pH, and temperature. This research is focused on self-potential study generated potential by electrokinetic. Electrokinetic potential can also be called streaming potential. Streaming potential are generated by fluid flow through porous media or fractures of rock. Therefore, elektrokinetic potentian can be use to fluid flow detecting and environment quantification. We have conducted an experiment fresh water fluid flow in celinder, which is in celider contain material porous. The material porous are made from various grain size. This experiment resulted electrokinetic coefficient (C ) of grain size respectively. The conductivity coefficient are computed by using Helmholtz-Smoluchowski equation. From eight samples determined the its conductivity electrohydraulic coefficient can be shown, the bigger grain size of sample, the bigger conductivity electrohydrolic coefficient obtained.