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ENVIROPLUG® No.8 and No.16 and No.20 are high-swelling Wyoming Bentonite in granular form. The unique molecular structure allows them to absorb five times their weight of water and swell to a volume of 12 to 16 times their dry bulk, making it an ideal well sealant. Applied dry or in a pumpable slurry, these fine granules expand against casings and formations to create a very low permeability flexible grout seal.

Applications

• Dry Driven Casing: In cable tool operations, these granular ENVIROPLUG® products can be used to grout the casing as it is being driven. A hole should be dug at the surface 6 to 8 inches larger than casing and 12 to 14 inches deep. Once the driving has begun, fill this hole with ENVIROPLUG® . The granules will follow the drive shoe downward as driving continues creating a bentonite collar around the casing.
• Pumpable Grout Seals: ENVIROPLUG® No.16 and No.20 can be used in a pumpable slurry mix to grout wells or abandon holes. ENVIROPLUG®’s hydration can be delayed by mixing 11 ounces of WYO-VIS® per 28 gallons of water.

Agitate until the polymer is dispersed, then add 50 pounds of ENVIROPLUG® No.16 or No.20. Pump immediately.

CAUTION: Continued agitation will result in extreme viscosity and become unpumpable. (For more work time and easy one-step mixing see ENVIROPLUG® GROUT and GROUT-WELL® DF).