Flexible grout composition and method

Details Flexible grout composition and method Flexible grout composition and method

1987-06-15

1989-01-10

Capella, Steven

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 84, 405267, C04B 1204

Patent

active

047971584

ABSTRACT:
A flexible grout composition is used to cement a conduit within a bore hole to prevent fluid loss, for sealing and grouting well casings, plugging abandoned wells, and waterproofing earthen structures. The flexible grout composition includes a water-swellable clay, such as bentonite; a particulate filler, such as calcium bentonite; and a water soluble silicate. The grout composition is mixed with water to form a slurry and the slurry is pumped into its intended location, for example, within the annulus defined between an outer surface of a conduit or casing disposed within a bore hole, and the surrounding earthen formation formed, for example, by drilling.

REFERENCES:
patent: 4102400 (1978-07-01), Crinkelmeyer et al.
patent: 4378249 (1983-03-01), Beale et al.
patent: 4435215 (1984-03-01), Yoshino et al.
patent: 4696698 (1987-09-01), Harriett
patent: 4696699 (1987-09-01), Harriett

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