What Is Seismic Testing?

November 10, 2012 | Author: | Posted in Environment

Seismic testing is a type of scientific testing that is primarily used for two different but related uses. It is used to foresee the occurrence of earthquakes and it is employed to discover natural gas stocks. The basic science associated with seismic testing for earthquakes has advanced considerably since the advance of the technique. Seismic simulations also are accustomed to measure the possible impact of earthquakes in vulnerable areas.

When seismic shake test originated in the early 1920’s, it was built to detect patterns that indicate an imminent earthquake. It was later on discovered that this exact same technology also might be used to measure the profile of petroleum and natural gas in waters and oceans. After this discovery, seismic testing became a remarkably popular geophysical method of search for natural gas. It is utilized mainly due to the substantial levels of accuracy this guarantees as a method of exploration; however, best predictions are not usually possible because the items being analyzed sit buried thousands of feet below the sea.

Geophysicists and geologists use selected techniques to gather information regarding the location of gas main or earthquakes. Seismic testing is usually completed after first making geological surveys. The sub-surface texture of some areas offers vital indications to seismic testers. Then, these scientists use tools such as geophones to analyze properties of these areas in relation to their porosity, grow older, formation structure, as well as permeability to arrive at conclusions.

Seismic testing has acquired importance within the United States because a major share of American oil is shipped in from outside the country. Approximately about a quarter associated with America’s oil and virtually a third of gas main in the U.S. comes from offshore resources. As a result, America is constantly on the search for alternatives to overseas oil. This has elevated the scale of gas exploration and has increased the importance of seismic testing.

While seismic testing as a method used to predict and measure earthquakes normally is not controversial, the second use is extremely contentious. The crux of the controversy relates to the fact that artificial types of waves and looks could also produce the same conditions needed to guide geological formations. The methods used for this have become the central point of discussion.

Seismic-induced waves inflict weighty damage on the environment, especially on sea life. The hefty sounds and moaning can cause permanent damage to marine animals. These kinds of testing can also cause damage to tourist spots such as Florida and California. Second of all, many people object to offshore drilling in certain regions and locations, for that reason also objecting to the testing done to determine whether that exploration is appropriate.

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