The modified ring was painted and marked both with a paint marker and a wire bound tag to indicate its current internal diameter size. We have stored this modified replaceable seat on the shelf in the Core Tech shop for potential use on future legs, such as Leg 179, when the oversized VSP may again be deployed. This same VSP tool would also not fit through the TAM straddle packer assembly. Without a casing hanger installed in the HRB, there was no way to isolate drill string noise during the VSP experiment.
To 176 Positioning Beacons and Automatic Station Keeping (ASK)
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