Travelling disc valve apparatus
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Oct 18, 1994
Grant Date -
N/A
app pub date -
Feb 11, 1993
filing date -
Apr 30, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A travelling disc valve assembly, comprising a length of tubing lowered down a cased wellbore; a crossover tool secured to the lower end of the length of tubing; a length of wash pipe secured to the lower end of the crossover tool; a disc valve assembly secured to the wash pipe and positioned to a lower circulation position in the well bore; a disc valve secured in a bore of the assembly; in the upper, portion of the assembly for shearing off the connection between the wash pipe and the disc valve assembly, when the disc valve assembly is in an upper position, providing to prevent fluid from flowing into the formation below the disc valve and to prevent production flow to the surface; and a to rupture the disc valve at a predetermined time so that the production within the formation is allowed to flow through the assembly bore to the surface.
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Family
International Classification(s)
Cited Art Landscape
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