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Enviroplug Coarse
Product #11048
Enviroplug Coarse is made of pure 'Wyoming Bentonite', and was the first bentonite chip developed and marketed. Enviroplug has been used for abandoning holes since 1983. Enviroplug is used in sealing and plugging applications.
Enviroplug Coarse swells to fill voids, exerting pressure against all surfaces to create a flexible low permeability seal. Since Enviroplug is introduced in a “dry” state, shrinkage cannot occur and there is a reserve expansion capacity. Generally hydration takes 1 to 2 hours.
Enviroplug is an exceptionally versatile product used for abandoning cased and uncased boreholes, sealing casing, isolating zones, sealing grounding rods and heat pump conductor holes, stemming and sealing seismic shot holes, sealing excavations, and for any vertical sealing to prevent water movement up or down a borehole.
Enviroplug is introduced in a dry state, which prevents shrinkage and provides a reserve expansion capacity. When absorbing water, Enviroplug swells to fill voids, exerting pressure against all surfaces to create a flexible, low-permeability seal.
Enviroplug falls easily through standing water and thin drilling fluids, filling the column from the bottom upward. Expect a fall rate of 1 ft/s, which has been achieved through water depths of over 1600 ft.
Application
Cased Holes or Uncased Holes: For decommissioning cased or uncased holes larger than 3" diameter, Enviroplug Coarse can be used. If static water is present, pour chips from the bag at a rate of 1 1/2 to 2 minutes per 50 pounds. A funneling device with a 2" opening can be used to insure a constant flow of material into the hole. Should the water level be quite low - a screen can be used to drop out "fines" from the material before entering the hole.
Abandoning Dug Wells: Completely filling dug wells with bentonite chips can be very expensive and unnecessary. To economically decommission and stabilize dug wells, Enviroplug Coarse should be placed from the bottom section upward to 3 feet above the water bearing zone. Alternate sections of sand, fine gravel, or clay upward with a 12" layer of Enviroplug Coarse every 5 to 6 feet. Any of the above methods should be finished off approximately 3 feet below the surface, then filled with native soil or cement depending upon local regulatory requirements.
Seismic Shot Holes: After the hole is drilled and charge is placed, pour Enviroplug Coarse slowly into the hole (1½ - 2 minutes per bag). In wet hole conditions add enough Enviroplug Coarse to fill up to the static water level. In a dry hole, add 2 to 4 bags directly over the charge. Where auger drills are used or where water is injected, pour 2 bags per 50 feet of hole depth.
Typical Toxicity Analysis
Standard (ppm) | Set Grout (ppm) | |
Arsenic | 5.0 | <0.10 |
Barium | 100.0 | 0.50 |
Cadmium | 1.0 | <0.05 |
Chromium | 5.0 | <0.10 |
Lead | 5.0 | <0.10 |
Mercury | 0.2 | <0.02 |
Selenium | 1.0 | <0.05 |
Silver | 5.0 | <0.10 |
Chemical Properties
SiO2 | 61.4% | MgO | 1.70% |
Al2O3 | 18.1% | CaO3 | 0.40% |
Fe2O3 | 3.50% | TiO2 | 0.20% |
K2O | 0.10% | Na2O | 2.30% |
H2O | 7.80% | Other | 0.07% |
LOS | 4.40% (Loss on Ignition) |
Packaging & Controls
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