Method of gravel packing a well

Details Method of gravel packing a well Method of gravel packing a well

1992-07-28

1993-12-14

Novosad, Stephen J.

Wells

Processes

Graveling or filter forming

166294, E21B 4304, E21B 4308, E21B 4310

Patent

active

052693759

ABSTRACT:
A method of gravel packing a well. A flow-reducing material is introduced into the annulus between a tubular liner and the well bore so as to collect at the perforations in the well bore and the apertures in the liner. This slows gravel slurry flow to the screen inner annulus and to the perforations to prevent gravel from bridging the annulus at these locations. The material is removed after the risk of bridging has passed. Various flow-reducing materials, such as wax flakes, salt, clay and gel, may be employed. The method is particularly useful in deviated wells.

REFERENCES:
patent: 3216497 (1965-11-01), Howard et al.
patent: 3273641 (1966-09-01), Bourne
patent: 3826310 (1974-07-01), Karnes
patent: 3880233 (1975-04-01), Muecke et al.
patent: 4018282 (1977-04-01), Graham et al.
patent: 4703799 (1987-11-01), Jennings, Jr. et al.
patent: 5062484 (1991-11-01), Schroeder, Jr. et al.
patent: 5165476 (1992-11-01), Jones

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