Method for fracturing and gravel-packing a well

Details Method for fracturing and gravel-packing a well Method for fracturing and gravel-packing a well

1996-09-05

1998-12-15

Neuder, William P.

Wells

Processes

Specific propping feature

166308, E21B 43267

Patent

active

058486453

ABSTRACT:
A method for gravel-packing an interval within a cased wellbore wherein perforations in the well casing are cleaned of any plugging materials before placement of the gravel (e.g. sand). A screen having alternate flowpaths thereon is lowered adjacent the perforated casing and a clear fluid (e.g. clear fracturing gel) is pumped through the perforations into the formation. The gel cleans the perforation of any plugging material and fractures the formation. A gravel (e.g. sand) slurry is then pumped into the annulus and through the perforations to deposit sand in the fracture, the perforations, and the annulus around the screen. If a sand bridge(s) forms in the annulus, the alternate flowpaths will deliver the slurry to all levels within the annulus insuring good distribution of sand across the interval.

REFERENCES:
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patent: 5082052 (1992-01-01), Jones et al.
patent: 5113935 (1992-05-01), Jones et al.
patent: 5161613 (1992-11-01), Jones
patent: 5161618 (1992-11-01), Jones
patent: 5417284 (1995-05-01), Jones
patent: 5419394 (1995-05-01), Jones
patent: 5435391 (1995-07-01), Jones

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