منابع مشابه
A Method of Measuring Earth Resistivity
A knowledge of earth resistivity ^ (or specific resistance) maybe of value in determining something of the composition of earth, such for example, as moisture content, whether it contains oil, ore of high conductivity, etc., or in the calculation or mitigation of damages to pipe systems by electrolysis caused by the rettim current of street-railway systems. For some of these or other reasons we...
متن کاملCombined simulation and inversion of SP and resistivity logs for the estimation of connate-water resistivity and Archie’s cementation exponent
Knowledge of initial water saturation is necessary to estimate original hydrocarbon in place. A reliable assessment of this petrophysical property is possiblewhen rock-coremeasurements ofArchie’s parameters, such as saturation exponent n and cementation exponent m, are available. In addition, chemical analysis of formation water is necessary to measure connate-water resistivityRw. Suchmeasureme...
متن کاملResearch on Algorithm of Borehole Resistivity Imaging Method
Original scientific paper Traditional dc electrical exploration method will face great challenge when detecting deep, complex geologic target. With the purpose, forward modelling and inverse modelling method of borehole resistivity has been developed. According to the characters of geology, the geological model has been set up. The numerical simulation shows that borehole resistivity method is ...
متن کاملElectrical Resistivity Measurement of the Molten Cordierite Glass Using Two-wire method
Electrical resistivity (ER) is a main parameter in the melting processes of glasses. However, its measurement is difficult at high temperatures. In this study the electrical resistivity of different cordierite glass samples in the molten state was measured in the temperature range of 1100˚C to 1550 ˚C using the two-wire method. It was attempted to decrease the electrical resistivity of the glas...
متن کاملDetection and determination of groundwater contamination plume using time-lapse electrical resistivity tomography (ERT) method
Protection of water resources from contamination and detection of the contaminants and their treatments are among the essential issues in the management of water resources. In this work, the time-lapse electrical resistivity tomography (ERT) surveys were conducted along 7 longitudinal lines in the downstream of the Latian dam in Jajrood (Iran), in order to detect the contamination resulting fro...
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ژورنال
عنوان ژورنال: Journal of Geography (Chigaku Zasshi)
سال: 1954
ISSN: 0022-135X,1884-0884
DOI: 10.5026/jgeography.63.2_82