Difference Between ET-DSP™ and ERH Part I

Date: March 27, 2010

A lot of people ask me what the difference is between ERH, or what is more commonly referred to as electro-thermal heating and ET-DSP™.  What makes ET-DSP™ so effective as a heatin...[read more]

Electrical Conductivity of the Soil / Reservoir

Date: March 27, 2010

The electrical conductivity of the soil varies with the amount of water in the pore space, the salinity of the water, and the temperature.  I like to use a slightly modified form of the [read more]

Electrode Resistance

Date: March 27, 2010

The following equation can be used to estimate the resistance of a finite length ET-DSP™ electrode if you know the soil properties.  The infinite length electrode approximation is not we...[read more]