Abstract: A well system includes a platform providing a deck, a rotary table mounted to the deck and defining a central opening through which tubulars are extendable from the platform and into a wellbore, and a tubular deployment tool mounted to the rotary table and operable to center the tubulars within the central opening. The tubular deployment tool includes a guide support mounted to the rotary table, one or more actuatable arms pivotably coupled to the guide support, and one or more guides rotatably mounted to each actuatable arm to apply a radial load against the tubulars extended through the central opening.

Abstract: A rotatable plate is configured to be coupled to a rotary table of a rig floor. The rotatable plate defines a central passage through which a tubular can be passed. Multiple arms each have a first end rotably coupled to the rotatable plate. The arms are hinged such that a distal end of the arms, away from the rotatable plate, are configured to move towards or away from the passage. Each of arms extends away from the rotatable plate towards the passage. The arms are biased away from the passage. Rollers are rotably coupled to one of the distal ends of the arms.

Abstract: A tong as may be used for a continuous circulation system in a wellbore. The tong has a housing with a hollow interior. A plurality of spaced apart jaw assemblies reside within the housing's hollow interior for engaging a portion of a tubular to be gripped and rotated by the tong. A gear wheel is secured to the housing for rotating the housing and the jaw assemblies. The gear wheel includes a toothed outer circumference for mating with teeth of a drive shaft of a driving motor. A gear flange is movably mounted on the gear wheel such that rotation of the gear wheel does not rotate the gear flange.