Drillable well-fluid flow control tool
Patent
·
OSTI ID:5602035
A tool for controlling the flow of fluid in a well casing in an oil or gas well is described comprising: a tubular mandrel having a flow passage with means for connecting one end of the mandrel to the well drill string and with the second end having a flow control valve associated therewith, a radially expandable seal member encircling and carried on the mandrel, an abutment member attached to and movable with the mandrel for engaging one side of the seal member, a bottom cone positioned around the mandrel and on the opposite side of the seal member from the abutment member, an upper cone positioned around the mandrel and having a conical surface confronting the conical surface of the bottom cone, slip segments positioned around the mandrel and intermediate of the cones with conical surfaces for engagement with the conical surfaces of the cones, and a lock hub positioned around the mandrel and on the side of the upper cone opposite the slip segments. The hub to receive applied pressure to move relative to the mandrel toward such slip segments causes radial movement and the compression and radial expansion of the seal.
- Assignee:
- Western Co. of North America, Fort Worth, TX
- Patent Number(s):
- US 4708202
- OSTI ID:
- 5602035
- Country of Publication:
- United States
- Language:
- English
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