Saturday, December 12, 2009

Any connection between earthquakes and drilling? UPDATE

A day after the post below, there is more information about earthquakes in an area that usually doesn't see a lot of this type of activity. Read about an earthquake swarm in Oklahoma

A geothermal project in California has been stopped. Do you think it might be because of "earthquakes"? The project was to extract vast amounts of renewable energy from deep, hot bedrock. The location was 100 miles north of San Francisco called the Geysers. Read a few paragraphs from the article

The project’s apparent collapse comes a day after Swiss government officials permanently shut down a similar project in Basel, because of the damaging earthquakes it produced in 2006 and 2007.

The project’s safety was also under review at the Energy Department after federal officials said the company had not been entirely forthcoming about the earthquakes produced in Basel in making the case for the Geysers project.

The results of that review have not yet been announced, but the type of geothermal energy explored in Basel and at the Geysers requires fracturing the bedrock then circulating water through the cracks to produce steam.

The next line makes the most sense ever!

By its nature, fracturing creates earthquakes, though most of them are small.

Small yes but can still be felt. Even small earthquakes can do some damage over a period of time.

Major damage to a foundation is often identified and fixed soon after an earthquake, but attention should also be given to small cracks that can develop into larger problems over time. Small cracks can shift with time due to soil conditions or small earthquakes, so cracks should be measured every couple of months. If cracks widen, then seek the help of a home inspector to determine if the foundation is sound.

Recent Texas earthquakes all near drilling.
2.8 in Ellis County December 4th
Cleburne earthquakes
DFW area quakes, which led to Chesapeake shutting down two injection wells.

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