Downhole tool leg retention methods and apparatus
A back reamer includes a drive stem configured to support a main reamer body, the main reamer body including a plurality of receptacles, and a plurality of cutting leg assemblies in positive locking engagement with the plurality of receptacles to restrict radial movement of the cutting leg assemblie...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A back reamer includes a drive stem configured to support a main reamer body, the main reamer body including a plurality of receptacles, and a plurality of cutting leg assemblies in positive locking engagement with the plurality of receptacles to restrict radial movement of the cutting leg assemblies. The invention also relates to a method of securing cutting leg assemblies to a main reamer body of a back reamer. |
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