The identification and distribution of brines, fresh/brackish waters and their transitions is critical for the exploration and development stages of any water production project. The precise location in depth of salinity transitions is highly relevant for well completion and resource optimization. Formation resistivity is usually used for this purpose, however, this method fails to provide sufficient information leading to erroneous decisions on well completion.

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Zelandez’s fluid characterization product offers invaluable insights by combining a comprehensive set of measurements and interpretation to provide detailed fluid characterization. By accurately measuring fluid temperature, conductivity, and formation resistivity, we ensure reliable data that you can depend on for making critical decisions.

Fluid conductivity and temperature measurements are performed inside the well. Changes in these property gradients will tend to reflect their transitions inside the sediments if the well has been in static conditions for enough time. When the measurement is carried out under these conditions, fluid transitions and their depth location will be accurate. Formation resistivity logs are then combined with these readings. Shallow and deep resistivity logs separation can be used as a permeability indicator (invasion) only when measurements can be trusted and salinity contrast allows for it.

The real benefit of our service lies in the integration of this data with lithology and porosity-permeability frameworks, delivering powerful insights into aquifer distribution and thickness. This comprehensive analysis empowers you to optimize resource management, reduce risks, and make more informed decisions for your project’s success.

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