| Grant number: | 06/06956-5 |
| Support Opportunities: | Regular Research Grants |
| Start date: | February 01, 2007 |
| End date: | January 31, 2009 |
| Field of knowledge: | Physical Sciences and Mathematics - Geosciences - Geophysics |
| Principal Investigator: | Carlos Alberto Mendonça |
| Grantee: | Carlos Alberto Mendonça |
| Host Institution: | Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
| City of the host institution: | São Paulo |
Abstract
This project presents a procedure to separate sources of self-potential fields measured in geophysical well-logging, for oil, gas, and groundwater exploration. Initially we develop a feasibility study showing that source fields can be separated by varying salt concentration of the perforation mud and repeating SP measurements. Since feasibility analysis was favorable, we are planing to test this methodology in a laboratory facility simulating the wellbore. This study may delineate a process to determine the hydraulic permeability and water concentration from conventional geophysical logs (SP, flowmeter, and resistivity) , which may find interest in oil and groundwater industries (AU)
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