AGI Usergroup section

1D Resistivity software

Win2000 & WinXP and later

2D Resistivity software

Win98, WinME, WinNT, Win2000 & WinXP

Demo

The EarthImager 2D is used to interpret 2D resistivity profiles created with any electrode array, recorded with electrodes in one plane, i.e. on a line on the surface, between two or more parallell bore holes, or between bore hole and surface. Any array or mixed data from Schlumberger, pole-pole, pole-dipole, dipole-dipole or Wenner electrode arrays are possible to invert. A special 'Survey Planner' allows the user to enter a geological model and run a virutal survey and then invert the virtual data to see if the objective of the survey can be met.
Extra modules available:
The time lapse module, is used when information about resistivity changes in the ground is needed. Some common situations include potential leakage from landfills, industrial sites, etc. Other monitoring situations include fracture tracing by injection of a conductive solution such as a salt solution. Other possible monitoring situations include saltwater intrusion in coastal areas, remediation progress at environmental sites, groundwater recharge, infiltration studies, to see how the ground is 'wetted' or how the ground dries up after a rain storm.
The Continuous resistivity profiling (CRP) module, is used to invert data with large number of electrode positions, like marine CRP surveys or certain roll-along files.

3D Resistivity software

Win98, WinME, WinNT, Win2000 & WinXP

Demo

EarthImager 3D will automatically determine a three dimensional resistivity model for the subsurface using the data obtained from a 3D electrical imaging survey with the electrodes arranged in boreholes and/or on the surface and presents a 3D volume of inverted resistivity data with advanced volume rendering technique. The final resistivity or IP image-volume can be rotated in any orientation, zoomed in and out, and translated to anywhere inside the image window in order to see the volume of interest in detail. Colors representing areas of less interest can be made transparent so that the shape of a pollution plume, for example, can be visible. With EarthImager 3D, resistivity inversion can be as easy as two steps: Read Data and Start Inversion with only a few mouse clicks.