Method for gravel packing a well

Details Method for gravel packing a well Method for gravel packing a well

1989-06-12

1990-11-13

Suchfield, George A.

Wells

Processes

Graveling or filter forming

E21B 4304

Patent

active

049695231

ABSTRACT:
A method of packing a well, particularly an oil, gas or water well comprises injecting a particle/liquid slurry into a wellbore wherein the particles comprise particles of at least two different densities independently selected from the density range of about 0.1 to about 4.0. The at least two different density particles may be injected as blend of different density particles or in a sequential series of slugs, each slug having a single density particle suspended therein. This technique gives substantially equivalent packing efficiency throughout the annulus, perforations and perforation chambers when compared with gravel packing using specialized low to medium density materials.

REFERENCES:
patent: 2207334 (1940-07-01), Reynolds et al.
patent: 2905245 (1959-09-01), De Priester
patent: 2952318 (1960-09-01), Ritch
patent: 3362475 (1968-01-01), Huitt et al.
patent: 3675717 (1972-07-01), Goins, Jr. et al.
patent: 3891565 (1975-06-01), Colpoys
patent: 4548269 (1985-10-01), Elson et al.
patent: 4733729 (1988-03-01), Copeland
patent: 4796701 (1989-01-01), Hudson et al.
patent: 4817717 (1989-04-01), Jennings, Jr. et al.

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