Weatherford/lamb, Inc.

Other

John Timothy Allen

Richard Lee Giroux

Bernd-Georg Pietras

Gary Thompson

Kevin Leon Gray

David Shahin

Randy Gene Snider

Steven Anthony Box

Bernd G Pietras

Jeffrey Michael Habetz

Adrian Vuyk, Sr

Maxine G Moffett

Steven Antony Box

David Othman Shahin

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular member within the housing, the at least one jaw having mounted thereon slip apparatus for engaging the portion of the tubular member, the slip apparatus including die apparatus movably mounted to the at least one jaw, the die apparatus movable with respect to the at least one jaw so that relative movement of the tubular with respect to the torque head is possible to the extent that the die apparatus is movable.

Top drive casing system

The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head is used to circulate drilling fluid while drilling with casing, and the cementing head is used to cement the casing string within the formation at a desired depth. The present invention also relates to methods and apparatus for isolating a tensile load from a drilling apparatus rotated by a top drive. In one aspect, the present invention provides a load isolator apparatus having an isolator body operatively connected to the top drive and a torque body at least partially disposed in the isolator body. In operation, the bearing assembly transfers the tensile load from the torque body to the isolator body.

Methods and apparatus for handling and drilling with tubulars or casing

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.

Tong for wellbore operations

A system for continuously circulating fluid to and through a tubular string either of coiled tubing or made up of a plurality of tubulars connected end-to-end while an upper tubular is added to or removed from a top tubular of the plurality of tubulars, all tubulars having a top-to-bottom fluid flow channel therethrough, the system having an upper chamber with a bottom opening, a top opening, and an upper sealing apparatus for sealingly encompassing a portion of the upper tubular, a lower chamber with a bottom opening, a top opening and a lower sealing apparatus for sealingly encompassing a portion of the top tubular, one of the upper chamber and the lower chamber sized for accommodating connection and disconnection therein of the upper tubular and the top tubular, and gate apparatus between and in fluid communication with the upper chamber and the lower chamber. Such a system may have apparatus for isolating a tubular therein from an axial load imposed by fluid pressure in a chamber; at least one of the lower chamber and the upper chamber with inner bushing apparatus with a portion thereof movably disposable within the chamber's sealing apparatus for facilitating movement of a tubular with respect to the chamber's sealing apparatus, and the system connectible to and rotatable by a rotating system for rotating the tubular string; and/or heave compensation interconnections for interconnecting the system to an offshore rig's heave compensation system. The system in certain aspects including fluid flow lines to each of the top and bottom chambers, a supply of fluid for circulating through the tubular string and through the upper and lower chambers, apparatus for continuously moving circulating fluid from the supply through the system into the tubular string.

Wellbore circulation system

A tong for rotating tubulars, the tong having, in certain embodiments, a tong outer case, a rotary movably mounted in the case for rotating a tubular, apparatus for rotating the rotary to rotate the tubular, at least one gripper or jaw movably mounted in the case and movable by the rotary for gripping the tubular, the at least one gripper or jaw having at least one cam following member or roller, and at least one non-circular cam surface on the rotary, the at least one cam following member or roller contacting and movable on the at least one non-circular cam surface for maintaining a desired position of the at least one gripper or jaw with respect to the tubular. In certain embodiments a specific cam angle, within certain tolerances, is maintained substantially the entire length along a cam surface.

Tong

A forklift truck blade cover constructed of a resilient compressible material that encloses and pads the toe of the forward extending lift blade of an industrial type forklift truck is provided. The blade cover provides protection from damaging pallets, piercing barrels, piercing trailer walls and creating sparks. The blade cover can be sized according to the type or brand of forklift truck being used and can be mounted on existing lift blades without modification. If the operator desires to secure the cover to the blade all that is required is drilling one or two holes in the blade for mounting bolts. The blade cover can be sized so as to prevent entry into certain types of openings in pallets, etc.

Growing community of inventors

Katy, TX, United States of America

John Timothy Allen