Sealing packer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 3, 1987
Grant Date -
N/A
app pub date -
Oct 2, 1985
filing date -
Oct 2, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A packer for a down hole oil well includes an inner mandrel assembly having an upper outer sleeve assembly that includes the hold down mechanism and upper packer seals with a piston on the underside of the packing seals to be pressure responsive and to deform the seals in response to pressure within the well string. Furthermore, a lower outer sleeve assembly has packing elements that are deformed and a setting mechanism to allow the packer to be set in a position within the well casing. Upper and lower unloading valves allow for fluid the bypass the packers when the packer is retrieved upward through the well casing.
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