Swab-resistant subterranean well packer

Wells – Packers or plugs

Patent

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Details

277188A, E21B 33128

Patent

active

056410190

ABSTRACT:
A swab-resistant packer is disclosed which prevents the packing element from expanding outwardly to cause swabbing during tripping of the apparatus in a subterranean well. Preferably, a metallic or other cable or cord is placed immediate and circumferentially around the exterior of the first and second ends of the packing element to prevent the packing element from moving outwardly away from the first, pre-set retracted position to thereby abate any tendency to swab.

REFERENCES:
patent: 1547240 (1925-07-01), Steele
patent: 2430623 (1947-11-01), Taylor, Jr. et al.
patent: 2738017 (1956-03-01), Lynes
patent: 4219204 (1980-08-01), Pippert
patent: 4326588 (1982-04-01), McStravick
patent: 4809989 (1989-03-01), Kernal

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