ABEM Terrameter SAS 1000 / SAS 4000
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Robust data-acquisition software featuring:
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Automatic measurement process.
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Automatic roll-along with coordinate updating.
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Electrode cable geometry and switching sequence defined in address and protocol
files allow user-defined surveying strategies and arrays. Files are supplied for
Wenner, Wenner-Schlumberger, multiple gradient array, pole-dipole, dipole-dipole,
pole-pole and square-array measurements.
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On-screen echo of measurement progress
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Software for graphical presentation including:
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Pseudosection plotting in colour or grey-scale.
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Optionally available 2D inversion software for automatic 2D interpretation.
2.6.2
Terrameter SAS LOG 300
The Terrameter SAS LOG 300 logging system is intended for use together with the
Terrameter SAS 1000 / 4000 system. It is intended for logging to depths up to 200m, 300m or
500m. It supports the following logging modes:
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Short normal (16") resistivity / IP
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Long normal (64") resistivity / IP
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Lateral (18") resistivity / IP
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Self potential
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Temperature
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Fluid resistivity (can be used to estimate TDS)
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Water level indicator
This simple, easy to transport, logging system makes it possible to delineate formation
boundaries with regard to infiltration, porosity and permeability by means of self potential
and resistivity measurements. Under favourable circumstances, water flow boundaries can be
detected by measuring temperature changes. Moreover, the resistivity of the water can be
measured in situ so that the total amount of total dissolved solids (TDS) can be estimated.
Zones of high salinity can thus be localized and sealed off by means of casing and cementing.
