Multiple stage inflation packer with secondary opening rupture disc
Patent
·
OSTI ID:5125017
This patent describes an inflatable packer apparatus for use in a well bore, it comprises: case means for connecting to a casing string and defining a port therethrough; inflatable packing means, connected to the case means and in communication with the port, for sealingly engaging the well bore when inflated; and rupture means upstream of the inflatable packing means for rupturing in response to a predetermined pressure after inflation of the packing means and thereby placing the port in communication with a well annulus.
- Assignee:
- Halliburton Co., Duncan, OK (United States)
- Patent Number(s):
- A; US 5109925
- Application Number:
- PPN: US 7-642491
- OSTI ID:
- 5125017
- Country of Publication:
- United States
- Language:
- English
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