Well packer with by-pass valve
Patent
·
OSTI ID:5720145
A well packer and bypass valve combination for use in a well bore includes the following components: a mandrel releasably connected to and extending through the packer; a port extending through the mandrel relatively above the packer; and a port closure member slidably mounted on the mandrel above the packer and cooperable with the packer whereby the valve closure member can be moved between positions opening and closing the port. The arrangement is such that the packer can be set in the well bore, the closure member moved to open and close the port as desired, and the mandrel and valve closure member moved longitudinally relative to the packer to compensate for thermal expansion or contraction of the pipe to which the mandrel is connected while the packer remains set. (10 claims)
- Assignee:
- Dresser Industries Inc.
- Patent Number(s):
- US 3416609
- OSTI ID:
- 5720145
- Country of Publication:
- United States
- Language:
- English
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