Abrasive slurry delivery apparatus and methods of using same

Details Abrasive slurry delivery apparatus and methods of using same Abrasive slurry delivery apparatus and methods of using same

1995-09-18

1997-06-10

Dang, Hoang C.

Wells

Processes

Graveling or filter forming

166 51, 166222, 1662421, E21B 4304

Patent

active

056366914

ABSTRACT:
An abrasive slurry delivery apparatus and associated method of using permit repeated and/or extended use of the apparatus in a subterranean wellbore and reduces abrasive wear of the casing during fracturing operations without requiring the disposal of expensive items of equipment after each fracturing operation. In a preferred embodiment, an abrasive slurry delivery apparatus has a tubular crossover member with an internal flow passage and side wall outlet openings, and a tubular protective member with outlet openings aligned with, but axially and circumferentially smaller than, the crossover outlet openings, coaxially disposed within the crossover.

REFERENCES:
patent: 2224538 (1940-12-01), Eckel et al.
patent: 2297308 (1942-09-01), Layne
patent: 3960366 (1976-06-01), Abney et al.
patent: 4049055 (1977-09-01), Brown
patent: 4726419 (1988-02-01), Zunkel
patent: 4921044 (1990-05-01), Cooksey

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