What is Sand Frac Mining?
Sand Frac Mining, or hydrofracking, is a process where sand
is used to extort oil and gas that is locked thousands of feet underground. A
hole is drilled down deep to where the resources lay and then frac sand,
chemicals, and water are forced into the cracks. This is also known as
blasting. The high pressure also creates new cracks. Once this step is
completed the water and chemicals are removed which just leaves the sand. With
the sand now holding open the cracks, or fissures, the gas and oil can now be
pulled out and brought back to the surface. The frac sand used in this process
has to have strict qualifications. It needs to be almost pure quartz, very well
rounded, extremely hard, and of uniform size. The pressure the sand needs to
withstand is between 6,000 psi to 14,000 psi. The majority of the sand used is
Wisconsin’s silica sand because of how well it meets these qualifications. The process
can be seen in figure 1.
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| Figure 1 The Process of How Fracking Works |
Sand Frac Mining in Wisconsin
Right now Western Wisconsin is the
most popular site for sand frac mining. Even though people have been sand
mining in Wisconsin for over 100 years permits for sand mining sites have
increased significantly. There are currently over 60 mining operations open in
the badger state. The sites stretch from the most southern Columbia County to
all the way up north in Burnett County. In figure 2 you can see on the map the correlation of why the mining sites are where they are.
With the booming of these sand
mining sites a lot of environmental impacting questions are raised. The
Wisconsin DNR states that there are two types of air emissions come from these
operations. “The first is from dust that may be emitted during the mining and
handling of sand. The second is from various pollutants emitted from equipment
used to mine, handle, and/or process the sand.”(dnr.wi.gov). In the article “Mining
Companies Invade Wisconsin for Frac-Sand” from http://ecowatch.com/2012/04/27/mining-companies-invade-wisconsin-for-frac-sand/
it talks about how these mining
sites are taking away the beautiful, hometown feeling landscapes of the state
of Wisconsin. Water pollution and Oil spill contamination are also a few of the
potential problems that some nearby citizens have faced or might face.
| Figure 2 This Map Shows How Wisconsin is Prime Real Estate for Fracking. |
GIS In Sand Frac Mining
I believe the use of GIS in this
field would be very favorable. You could keep data on which routes the
transportation truck are going, see how the landscape is changing after a
certain amount of mining, or have it keep an eye on the different environmental
issues that surround the controversial topic. In creating maps with all this
information the public can have a better chance of gaining more knowledge on
what is really going on in their area.
Sources:
http://wcwrpc.org/frac-sand-factsheet.pdf
http://dnr.wi.gov/topic/mines/silica.html
http://dnr.wi.gov/topic/Mines/documents/SilicaSandMiningFinal.pdf

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