Tubing actuated retrievable packer
Patent
·
OSTI ID:5248105
This patent describes a packer apparatus for use in establishing sealing integrity between upper and lower zones in an annular area between an inner and outer conduit in a subterranean well, comprising: an inner mandrel attachable to the inner conduit; anchoring slip means engagable with the outer conduit for holding the packer in engagement with the outer conduit against oppositely directed forces; packing element means engagable with the outer conduit for sealing against fluid pressure acting thereon in the upper and lower zones; shearable means for retaining the anchoring slip means and packing element means in engagement with the outer conduit, the shearable means being sheared by application of a force to the inner mandrel for releasing the anchoring slip means and the packing element means from engagement with the outer conduit; the improvement comprising; means for supporting forces acting on the packer due to the pressure of fluid in the upper zone without subjecting the shearable means to forces due to the pressure of fluid in the upper zone.
- Assignee:
- Baker Oil Tools, Inc., Orange, CA
- Patent Number(s):
- US 4610300
- OSTI ID:
- 5248105
- Country of Publication:
- United States
- Language:
- English
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