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SVE well diameter

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cdale

Civil/Environmental
May 24, 2004
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trying to decide if there is a significant benefit of larger 4-inch wells over 2-inch wells for an SVE system. going with 4-inch adds 2-3k to my cost of installation of the wells. i can't find much info to help me decide. what are the other factors should i consider? the borehole diameter/annualar space for sand pack will be about the same either way.
 
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In addition to cost, you should also consider your expected extraction rate. Often 4-inch wells are selected over 2-inch because the 4-inch wells are capable of higher extraction flow rates and will experience less friction loss.
 
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