the type of well they built in guatemala was an unconsolidated or sand wells they are drilled into a formation consisting of soil, sand, gravel or clay material that collapses upon itself. a well is composed of many components; the following is a list of the most important materials used:
casing is used to maintain an open access in the earth while not allowing any entrance or leakage into the well from the surrounding formations. The most popular materials used for casing are black steel, galvanized steel, PVC pipe and concrete pipe.
screen keeps sand and gravel out of the well while allowing groundwater and water from formations to enter into the well. Screen is available in many materials, the most popular being stainless steel and slotted PVC pipe. Screen is used when wells are drilled into unconsolidated materials.
gravel pack is placed around the outside of the screen to prevent sand from entering the well or clogging the screen and to stabilize the well assembly.
here's some pictures of the drilling process through 4 days, we have over 1,500 pictures...we thought that might be to many to look at so here's a few. again if you'd like to help with the water crisis please visit
http://www.water.cc/
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learning how to work the drill |
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preparing mud pits |
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making mud |
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paul working the drill...look out |
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now that's a wrench |
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adding steel pipe as we dig deeper and deeper |
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lowering the PVC pipe into hole, that's not an easy task |
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as you add more pipe, the task gets even harder |
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now that we reach the bottom, we must saw the remaining pipe |
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emptying the mud pits |
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standing in the mud pits |
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WE HAVE WATER!!! |
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ahhh...refreshing clean water |
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jaime & manolo (team leaders) proud of the work that was accomplished |
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here is the well topped off. they drilled 145 feet deep. they're getting ready to pour the cement base. |
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finishing base |
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testing the water |
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water specimens |
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all the different layers of the earth they went through in 5 ft increments per bag |