Weatherford/lamb, Inc.

Weatherford Technology Holdings, LLC

Delaney Michael Olstad

Karsten Heidecke

Raleigh Fisher

Joseph Ross Rials

Ross Rials

Michael W Hayes

Doyle Frederic Boutwell, Jr

Martin Liess

Benson Thomas

Michael C Hayes

John D Hooker, Ii

Jim Hollingsworth

Russell W Thompson

Russell Lee Morgan

John D Hooker

Doyle Frederic Boutwell

In one embodiment, a top drive system includes a quill; a motor operable to rotate the quill; a gripper operable to engage a joint of casing; a connector bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally coupled to the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and the quill.

Method of using a top drive system

Top drive system

A fill-up and circulation tool includes a mandrel; a packer assembly is disposed around the mandrel; and a valve assembly connected to the mandrel, wherein the valve assembly is configured to selectively control fluid flow into the tool and out of the tool.

Fill up and circulation tool and mudsaver valve

Embodiments of the invention relate to a gripping apparatus for supporting a tubular. The gripping apparatus may include a housing, a slip assembly disposed in the housing, and a leveling ring operable to move the slip assembly in the housing. The gripping apparatus may further include a guide member and a mating member operable to couple the slip assembly to the leveling ring. The longitudinal movement of the leveling ring directs the mating member along the guide member to radially displace the slip assembly relative to the housing.

Methods and apparatus for supporting tubulars

Growing community of inventors

Clear Lake, TX, United States of America

Delaney Michael Olstad