| 摘要 |
A borehole wall contacting apparatus on a bottom hole assembly of a drill string for contacting the borehole wall including a plurality of dovetail grooves having outwardly converging opposed sidewalls formed in the apparatus body for receiving at least one pair of coacting stabilizer wear blades, each blade having opposed contact and camming sidewalls with relative longitudinal engagement of the camming walls of the coacting wear blades wedging the opposed sidewalls into engagement with the opposed converging dovetail walls to removably secure the wear blades into position.
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