Oil well gravel packing method and apparatus

Details Oil well gravel packing method and apparatus Oil well gravel packing method and apparatus

1975-09-22

1976-12-28

Purser, Ernest R.

Wells

Processes

Graveling or filter forming

166 51, 166334, E21B 4310

Patent

active

039996085

ABSTRACT:
A method for transporting gravel to a production zone with a circulating well fluid to uniformly pack the gravel in the annular space in the wall between the perforated liner and the formation whereby the fluid enters the perforated liner after depositing gravel at the top of the annular column of gravel and flows through the liner inner annulus into a tailpipe through which the well fluid is returned to the surface.
The well fluid carrier for the gravel is prevented from entering the perforated or slotted liner except at the top of the gravel sheath by a semi-solid material pre-positioned in the slotted liner-tailpipe annulus. The semi-solid material is progressively eroded by the well fluid entering the slotted liner-tailpipe annulus at the top of the gravel sheath.

REFERENCES:
patent: 2224630 (1940-12-01), Dean et al.
patent: 2241439 (1941-05-01), Ball
patent: 2337429 (1943-12-01), Tomlinson
patent: 2905245 (1959-09-01), De Priester
patent: 3216497 (1965-11-01), Howard et al.
patent: 3268001 (1966-08-01), Brandt
patent: 3880233 (1975-04-01), Muecke et al.
patent: 3905423 (1975-09-01), Sparlin et al.

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