| 摘要 |
A latch assembly, and methods of using the latch assembly, for use with a bottom hole assembly (BHA) and a tubular, are provided. In one embodiment, t he latch assembly is disposable within the tubular, configured to be rotational ly and axially coupled to the tubular. In one aspect of the embodiment, latch assembly is configured to be released from the tubular by applying a tensile force to the latch assembly. The latch the latch assembly may comprise: one or more sleds disposed within one or more respective slots formed along at leas t a portion of a locking mandrel; and one or more retractable axial drag block s configured to engage a matching axial profile disposed in the tubular, where in each axial drag block is coupled to the respective sled with one or more biasing members; and the locking mandrel actuatable between a first position and a second position and preventing retraction of the axial drag blocks whe n actuated to the second position. The latch assembly may also comprise a drag block body having a bore therethorugh; and one or more retractable torsional drag blocks configured to engage a matching torsional profile disposed in th e tubular, wherein each torsional drag block is coupled to the drag block body with a biasing member.
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