EM Locator technology includes distinctive proprietary geophysical hardware which acquires and processes subsurface data.
The system consists of a source which sends down a series of pulses into the ground via electrodes or a loop. The return signals are collected by the sensor, amplified, digitized and transferred to a laptop for further processing. The system can be controlled from a vehicle or on the ground. Power is provided by batteries, which can be re-charged during transit. The equipment easily fits into the cargo area of a mid-sized SUV.
©EM Locator, 2010.
©EM Locator, 2019.
Rapid profiling can be achieved by mounting the equipment on a trailer. As the equipment is modular and lightweight it facilitates helicopter or ATV transportation to challenging terrain. There it could be used to provide “ quick- look “ surveys.
EM Locator sends out a series of pulses into the ground. The wave fronts agitate the non-solids and creates an EM signature which travels to the surface. It is collected by the sensor coil, amplified, digitized and stored in the laptop for further processing.
The reflections from solid boundary layers are consistent, but the returns from non-solids show distinct anomalies. Unique signatures are obtained for hydrocarbons, fresh and salt water. Travel time, as in sonar is used to determine the depth and thickness of the layers.
The system collects many different types of signatures. Presently we focus on hydrocarbon and aquifer signatures but the return signals could be analyzed for other geophysical properties. Preliminary computer analysis has revealed a variation in the hydrocarbon signatures from different locations. This could evolve in to a significant benefit for the acquiring company if the frequency content of the signatures could be linked with petrophysical characteristics.