Gravel pack well completions

Details Gravel pack well completions Gravel pack well completions

1990-05-04

1991-02-26

Dang, Hoang C.

Wells

Means for forming filter beds

166 50, 166241, 166242, E21B 4304

Patent

active

049954563

ABSTRACT:
A method and apparatus for gravel-packing a formation which is especially useful in completing long production or injection zones and zones lying in deviated or horizontal boreholes wherein a gravel-pack tool is lowered to position a perforated liner adjacent the formation thereby forming an annulus between the liner and the formation. A gravel slurry is flowed down the borehole and is directed into a spiral flowpath by a distributor, e.g. helically-shaped vanes, on the tool as the slurry enters the annulus at the top of the liner. The spiraling of the slurry around the substantially-horizontal liner aids in directing gravel into production perforations if the well is cased and overcomes some of the gravitational effects on the settling of the gravel thereby providing a more uniform and efficient gravel pack around the liner.

REFERENCES:
patent: 2140072 (1938-12-01), Chenault
patent: 2371391 (1945-03-01), Haynes
patent: 2513944 (1950-07-01), Kessler
patent: 2978024 (1961-04-01), Davis
patent: 3216497 (1965-11-01), Howard et al.
patent: 3421586 (1969-01-01), Solum
patent: 3850246 (1974-11-01), Despujols
patent: 4595058 (1986-06-01), Nations
patent: 4662447 (1987-05-01), Bolin
patent: 4770336 (1988-09-01), Arterbury et al.
patent: 4856591 (1989-08-01), Donovan et al.
"Introducing the First Non-Rotational, Hydraulic Set Gravel Pack Systems", Completion Services, Inc., Lafayette, LA.
"Innovative Sand Control Technology", Howard Smith Screen Co., Houston, TX.

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