Combination landing unit and seal assembly
A combination landing unit and seal assembly is described which can be latched within the internal bore of a liner within a well, the liner being of the type which includes a liner setting sleeve with internal threads which are engaged by mating threads of a liner running tool during the installation of the liner within the well bore, comprising: a tubular landing unit having an internal profile; an external seal region located on the exterior of the tubular landing unit for sealing within the bore of the liner below the liner setting sleeve threads; a floating seal assembly initially received within the polished internal bore of the upward extension, and wherein the external running latch includes a running collet having a collet body and downwardly extending collet fingers and wherein the upward extension of the landing unit is provided with an internal recess for receiving the collet fingers, the running collet being assembled on the exterior of the floating seal assembly with the collet fingers being forceably extended outwardly by the assembly exterior to retain the fingers within the recess.
- Assignee:
- Hughes Tool Co., Houston, TX
- Patent Number(s):
- US 4726425
- OSTI ID:
- 5240107
- Country of Publication:
- United States
- Language:
- English
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