Sand consolidation with organic silicate

Details Sand consolidation with organic silicate Sand consolidation with organic silicate

1981-12-10

1983-11-29

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

E21B 33138

Patent

active

044176236

ABSTRACT:
Unconsolidated sand-like material in a subsurface formation adjacent a borehole of a water, oil, or gas well is consolidated by treating the formation first with a solution of alcohol and organic silicate and then with water. The water causes the organic silicate to hydrolyze and polymerize into a coating-like binding agent. The water also flushes excess organic silicate-alcohol solution from the more permeable portions of the formation adjacent the borehole, thereby maintaining the formation's permeability. The silicate solution may be preceded by alcohol without silicate. Organic silicate has many advantages over alkali metal silicate.

REFERENCES:
patent: 2259875 (1941-10-01), Bent et al.
patent: 2281810 (1942-05-01), Stone et al.
patent: 3022825 (1962-02-01), Winsaurer et al.
patent: 3327783 (1967-06-01), Ayers
patent: 3500928 (1970-03-01), Rockwell
patent: 4081029 (1978-03-01), Holm

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