Method to achieve low cost zonal isolation in an open hole compl

Details Method to achieve low cost zonal isolation in an open hole compl Method to achieve low cost zonal isolation in an open hole compl

1996-01-25

1997-09-30

Bagnell, David J.

Wells

Processes

Cementing, plugging or consolidating

166147, 166191, E21B 33124, E21B 3313

Patent

active

056718098

ABSTRACT:
A low cost zonal isolation technique for use in open hole well completions and workovers is disclosed. A production liner, tubing string, casing string or coiled tubing is provided with spaced apart pairs of sealing means having at least one hole drilled through the liner between each pair. The liner or other tubular is run in and placed across the production interval. Cement, resin or polymer gel is pumped into the annular between the liner and borehole wall through each of the holes between the liner and borehole wall through each of the holes between pairs of seals and allowed to harden or set up. The bore of the production liner is then drilled out and the production interval completed for well production or workovers, as desired.

REFERENCES:
patent: 2187493 (1940-01-01), Baker
patent: 4655286 (1987-04-01), Wood
patent: 4913232 (1990-04-01), Cheymol et al.
patent: 5028344 (1991-07-01), Hoskin
patent: 5507345 (1996-04-01), Wehunt, Jr. et al.

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