Latch and retrieving assembly
Patent
·
OSTI ID:5451939
A latch and retrieving assembly for use with a well tool having an axial bore, the wall of the bore having an internal landing shoulder and an annular latch recess spaced below the landing shoulder, the assembly is described comprising: a mandrel insertable in the bore of the well tool, the mandrel having upper connecting means for connection in a well pipe string extending to the well surface; a lower abutment on the mandrel; a collet member slidably mounted about the mandrel, the lower abutment including a carrying groove adjacent a lowermost extent of the mandrel, an upwardly slanting wall region which joins the carrying groove to a plateau region, and a downwardly slanting wall region which joins the plateau region to a releasing groove; and wherein the collet carrier ring includes radially extending torque lugs which are received within mating slots in the bore of the well tool whereby torque transmitted from the well surface through the pipe string is transmitted from the collet to the well tool.
- Assignee:
- Hughes Tool Co., Houston, TX
- Patent Number(s):
- US 4715445
- OSTI ID:
- 5451939
- Country of Publication:
- United States
- Language:
- English
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