Wellbore circulating valve
Patent
·
OSTI ID:5151688
A wellbore circulating valve especially useful in a string of testing tools utilizes a sequentially ratcheted inner mandrel which covers a series of flow ports and is opened by a predetermined sequence of operations which move the mandrel away from the flow ports thereby communicating the annulus with the inner bore of the tool.
- Assignee:
- Halliburton Co.
- Patent Number(s):
- US 4058165
- OSTI ID:
- 5151688
- Country of Publication:
- United States
- Language:
- English
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