Method for effecting seals in earth boreholes

Details Method for effecting seals in earth boreholes Method for effecting seals in earth boreholes

1982-06-10

1984-08-07

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

106DIG4, E21B 33138

Patent

active

044638086

ABSTRACT:
A well fluid and method for borehole sealing such as grouting or plugging, the fluid being comprised of water, a water swellable clay and a water dispersible polymer which prevents immediate hydration of the clay.

REFERENCES:
patent: 2836555 (1958-05-01), Armentrout
patent: 3028913 (1962-04-01), Armentrout
patent: 3082823 (1963-03-01), Hower
patent: 3323603 (1967-06-01), Lummus et al.
patent: 3396790 (1968-08-01), Eaton
patent: 3407878 (1968-10-01), Engle
patent: 3447608 (1969-06-01), Fry et al.
patent: 4182417 (1980-01-01), McDonald et al.
patent: 4391925 (1983-07-01), Mintz
Scanley, "Fluid Loss Controlled by . . . Acrylic Polymers as Drilling Mud Additives", World Oil, Jul., 1959, pp. 122, 124, 126 and 128.

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