Method of collecting sample using multi-packer and apparatus thereof
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United States of America Patent
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Aug 9, 2016
Grant Date -
Jan 29, 2015
app pub date -
Jul 17, 2014
filing date -
Jul 24, 2013
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Abstract
A method of collecting samples that are not polluted at the outside of a borehole at a predetermined depth by using a multi-packer and an apparatus therefore. Contaminated water in the borehole between first and second packers of the multi-packer is selectively discharged into a contaminated water discharging vessel installed on a lower end of a sample collecting container by opening or closing an electronic switching valve in the contaminated water discharging vessel.
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