Well screen having a uniform outer diameter

Details Well screen having a uniform outer diameter Well screen having a uniform outer diameter

1994-11-28

1998-08-04

Novosad, Stephen J.

Wells

Screens

Spiral

166233, E21B 4308

Patent

active

057879800

ABSTRACT:
A well screen is composed of a plurality of screen units connected in series. Each of said screen units has a cylindrical connecting section at least at one end thereof and includes a plurality of support rods extending in the axial direction of the screen disposed cylindrically about a section of the screen other than the connecting section at a predetermined interval in the circumferential direction of the screen, and a wire wound on the outer periphery of said support rods so as to form slits of a predetermined width. The well screen further includes outer diameter equalizing means provided about adjacent ones of the connecting sections of two of the screen units connected to each other for substantially equalizing the outer diameter of said connecting sections to the outer diameter of sections other than the connecting sections.

REFERENCES:
patent: 725117 (1903-04-01), Morris
patent: 2353881 (1944-07-01), Crake
patent: 4657079 (1987-04-01), Nagaoka
patent: 4771829 (1988-09-01), Sparlin
patent: 4945991 (1990-08-01), Jones

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