Releasable well tool stabilizer
Patent
·
OSTI ID:6469948
This patent describes a stabilizer housing for a well tool mounted in a cased subterranean well. It comprises: a tubular body connectable in co-axially aligned series relationship to the well tool; spaced, longitudinal slots extending through the wall of the tubular body, with an upper and a lower end; a radially expandable linkage disposed in each the longitudinal slot; means for pivotally securing one end of each the linkage in one end of the respective longitudinal slot, whereby axial movement of the other end of each the linkage relative to the tubular body shifts the linkage from a radially contracted run-in position to a radially expanded position; anti-friction means carried by each the linkage engagable with the well casing in the radially expanded position; a compressed spring mounted in the other end of the tubular body; a force transmitting assemblage interconnecting the spring and the lower ends of the linkages, thereby urging the linkages to the radially expanded positions. The force transmitting assemblage comprising two releasable connected members separable in response to a predetermined upward force applied to the tubular body when the expanded linkages become stuck in the well.
- Assignee:
- Baker Hughes Inc., Houston, TX (USA)
- Patent Number(s):
- A; US 4960173
- Application Number:
- PPN: US s 7-426769
- OSTI ID:
- 6469948
- Country of Publication:
- United States
- Language:
- English
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