Method of using nitrile derivative for sand control

Details Method of using nitrile derivative for sand control Method of using nitrile derivative for sand control

1991-09-04

1993-04-06

Suchfield, George A.

Wells

Processes

Providing porous mass of adhered filter material in well

166280, 166281, 166295, 166300, E21B 4304, E21B 43267

Patent

active

051994917

ABSTRACT:
A composition and method for consolidating proppant or gravel for propping fractures about, or for gravel packs for sand control in, wells in subterranean formations characterized by an improvement in which there is used a combination of reactants, including a capped diisocyanate that will produce polyurethane and coat the catalyst in situ. Also disclosed are specific examples of satisfactory frac fluids, diluents and catalysts for both a specially designed one-pass system and, preferably, a two-pass system of putting and consolidating the proppant in a fracture.

REFERENCES:
patent: 2867278 (1959-01-01), Mallory et al.
patent: 3976135 (1976-08-01), Anderson
patent: 4113014 (1978-09-01), Kubens et al.
patent: 4785884 (1988-11-01), Armbruster
patent: 4920192 (1990-04-01), Wiser-Halladay
patent: 5048608 (1991-09-01), Wiser-Halladay et al.

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