Standing valve
Patent
·
OSTI ID:6498352
This patent discusses an apparatus for removing fluids from a wellbore. It comprises a valve housing fixedly secured to a wellbore tubing string, the housing having perforations and a valve seating surface; a valve stem alignment guide secured to the valve housing; a valve stem adapted for movement in the valve stem alignment guide; and a valve seating device attached to the valve stem and capable of contacting the valve seating surface, thereby preventing fluid flow through the valve housing and past the valve seating surface when the seating device and valve seating surface are in contact.
- Assignee:
- Exxon Production Research Co., Houston, TX (USA)
- Patent Number(s):
- US 4951752; A
- Application Number:
- PPN: US s 7-340998
- OSTI ID:
- 6498352
- Resource Relation:
- Patent File Date: 20 Apr 1989
- Country of Publication:
- United States
- Language:
- English
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