Method of gravel packing with oil-based carrier fluid

Details Method of gravel packing with oil-based carrier fluid Method of gravel packing with oil-based carrier fluid

2003-12-30

2008-09-02

Neuder, William (Department: 3672)

Wells

Processes

Graveling or filter forming

C166S051000

Reexamination Certificate

active

07419004

ABSTRACT:
A method is disclosed for gravel packing a hole in a subterranean formation including the step of pumping into the hole a gravel pack composition comprising gravel and a carrier fluid comprising a brine-in-oil emulsion, said emulsion being stabilized by an emulsifier based on at least one sorbitan fatty acid ester presenting a shoulder peak before the peak depicted to be the monomer peak when analyzed by gel permeation chromatography. The emulsifiers that exhibit the shoulder exhibit good stability without causing formation damage.

REFERENCES:
patent: 3753903 (1973-08-01), Fischer et al.
patent: 4945991 (1990-08-01), Jones
patent: 6110874 (2000-08-01), Van Slyke
patent: 6631764 (2003-10-01), Parlar et al.
patent: 94/28086 (1994-12-01), None
patent: 96/37683 (1996-11-01), None
SPE 17161—Solids-Free Brine-in-Oil Emulsions for Well Completion by A.M. Ezzat and S.R. Blattel.

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