Seismoelectrical Explorations

Weatherby Energy makes use of many types of scientific principles when drilling for oil and gas. The expertise of Weatherby Energy in various drilling methods and techniques helps to make investing with Weatherby Energy a wise choice for those interested in investing in energy and oil drilling. One example of scientific procedures used by Weatherby Energy is the use of seismic principles.

What is Seismolectrical Exploration?

Seismoelectrical exploration is also referred to as the electroseismic method of exploring. Seismoelectrical exploration is carried out by examining seismic activity as well as electromagnetic fields in soil and rock.

Monitoring seismic activity requires the use of computer/receiver for the data, antennae cables and electrodes on the surface, a source of the seismic disturbance to get the seismic wave started. Each time a seismic wave is sent into the ground it is called a sounding. Typically two pairs of electrodes are set up for each sounding.

When seismic waves, or sound waves, pass through certain kinds of rock structures, they affect the rock structure and any fluids contained in the structure. Fluid in the rock will vibrate and that will create an electric field than can be measured. This electromagnetic wave can be detected with electrodes placed on the surface of the land.

There are four of the possible things that happen when a seismic wave passes through materials in the earth.
1. The electrical resistivity of the material could be slightly changed.
2. The rock and fluids could be affected in an electrokinetic way and they will move or vibrate.
3. A piezoelectric effect can occur if a certain type of material is stressed enough to produce an electric charge.
4. Lastly, radio waves may be produced from certain materials.

The usefulness of this gathered data is shown in the different responses to the seismic wave if the holes in the rock have oil or water in them. The EM waves will be different for empty holes than they are for holes with fluids in them. For example, when water moves, it creates an electromagnetic field that can be measured.

The Use of Seismolectrical Data

Seismoelectrical exploration is not widely used as of yet, partly due to the fact that gathering of data can be affected by any electrical noise in the area from power lines. However, it may be possible to overcome this problem by using a seismic wave of greater strength. Another reason may be that the depth for surveying is limited to around 500 meters.

Seismoelectrical exploration is, however, being used for finding aquifers. When the seismic wave comes into contact with a water bearing formation, the water will emit a seismoelectric signal. By combining seismic and electrical methods, the resistivity and conductivity are measured and the size and depth of the aquifer can be established.

Seismoelectrical exploration is a developing science. As this method is improved and refined, it will likely be used to a greater advantage. It has definite applications for finding ground water and may be able to give clearer readings on the properties of underlying oil deposits. This means Weatherby Energy can make use of this and other methods to help increase the chance of investment being a success. Weatherby Energy remains at the forefront of exploring new technologies in the field of drilling and you can be confident that the latest scientific methods will be used to find and dig for oil.


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