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JOIDES Resolution Tour 1985–2005

JOIDES Resolution: Hole Reentry

drawing of drill string reentering a hole

The captain locates a previous drill site by bouncing sound waves between the ship's hydrophones and sonar beacons on a metal device called a reentry cone. Powerful thrusters—small propellers—hold the ship in place using dynamic positioning. A remote television camera aids in positioning the drill pipe into the reentry cone.


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