Abstract: A clamp for clamping to two tubulars, each of the two tubulars including a component of a top drive system, the two tubulars threadedly connected together, the clamp for inhibiting relative rotation of the two tubulars, each of the two tubulars having at least one tubular projection projecting therefrom, the clamp including a clamp body having an interior surface, a plurality of clamp projections projecting inwardly from the interior surface of the clamp body for holding the at least one tubular projection projecting from each of the two tubulars.

Abstract: A clamp for clamping to two tubulars, each of the two tubulars including a component of a top drive system, the two tubulars threadedly connected together, the clamp for inhibiting relative rotation of the two tubulars, each of the two tubulars having at least one tubular projection projecting therefrom, the clamp including a clamp body having an interior surface, a plurality of clamp projections projecting inwardly from the interior surface of the clamp body for holding the at least one tubular projection projecting from each of the two tubulars.

Abstract: A clamp for clamping to two threadedly-connected items, and, in one aspect, two threadedly-connected components of a top drive system.

Abstract: An apparatus for use in wellbore operations and a method for using it is provided. The apparatus includes a main body, two support ears spaced-apart and projecting from the main body, each having an inner ear part and an outer ear part. The inner ear part is able to support more weight than the outer ear part. In certain aspects, structure for preventing a large support link from being positioned on an outer ear part is provided. The apparatus, may be any of a link adapter, a block adapter, a becket, an elevator, and a drilling hook.

Abstract: A tubular gripping system and a top drive drilling system with such a tubular gripping system, in at least some aspects, the gripping system beneath the top drive unit and, in at least some aspects, the gripping system having a body with four spaced-apart grippers movably connected thereto and piston/cylinder devices movably interconnected with each gripper for moving the grippers to clamp the tubular.

Abstract: An apparatus for use in wellbore operations and a method for using it is provided. The apparatus includes a main body, two support ears spaced-apart and projecting from the main body, each having an inner ear part and an outer ear part. The inner ear part is able to support more weight than the outer ear part. In certain aspects, structure for preventing a large support link from being positioned on an outer ear part is provided. The apparatus, may be any of a link adapter, a block adapter, a becket, an elevator, and a drilling hook.

Abstract: A top drive system including, in certain aspects, a motor, a gear system below, and driven by the motor, a space between the top drive motor and the gear system, a seal assembly for inhibiting oil for lubricating parts of the gear system from flowing into the space, the seal assembly having a movable rod piston, a sealing arm projecting from the rod piston, at least one removable seal secured to the sealing arm, a seal member releasably secured to the gear system, and the movable rod piston movable to move the sealing arm to bring the at least one removable seal into sealingly contact with the seal member to inhibit oil from flowing into the space.

Abstract: A clamp for clamping to two threadedly-connected items, and, in one aspect, two threadedly-connected components of a top drive system.

Abstract: An apparatus for use in wellbore operations, the apparatus including a main body, two support ears spaced-apart and projecting from the main body, each inner ear part having an inner part, and an outer ear part, the inner part able to support more weight than the outer part; and, in certain aspects, structure for preventing a large support link from being positioned on an outer ear part; the apparatus, in certain aspects, being any of a link adapter, a block adapter, a becket, an elevator, and a drilling hook.

Abstract: A tubular gripping system and a top drive drilling system with such a tubular gripping system, in at least some aspects, the gripping system beneath the top drive unit and, in at least some aspects, the gripping system having a body with four spaced-apart grippers movably connected thereto and piston/cylinder devices movably interconnected with each gripper for moving the grippers to clamp the tubular.

Abstract: A top drive system including, in certain aspects, a motor, a gear system below, and driven by the motor, a space between the top drive motor and the gear system, a seal assembly for inhibiting oil for lubricating parts of the gear system from flowing into the space, the seal assembly having a movable rod piston, a sealing arm projecting from the rod piston, at least one removable seal secured to the sealing arm, a seal member releasably secured to the gear system, and the movable rod piston movable to move the sealing arm to bring the at least one removable seal into sealingly contact with the seal member to inhibit oil from flowing into the space.

Abstract: An apparatus for rotating a tubular with respect to a drill bit, e.g., for making or breaking a connection between a tubular and a drill bit, the apparatus, in at least certain aspects including a frame, gripper apparatus connected to the frame for gripping and rotating a primary tubular, and a torquing frame with plate apparatus for holding the drill bit.

Abstract: An apparatus for rotating a tubular, the apparatus, in at least certain aspects including a frame, a rocker assembly connected to the frame, the rocker assembly including a top rocker arm pivotably mounted to the frame, and a bottom rocker arm pivotably mounted to the frame, top torque apparatus connected to the frame, upper gripper apparatus connected to the frame for gripping a primary tubular (e.g., but not limited to a first pipe), lower gripper apparatus connected to the frame for gripping a secondary member (e.g.

Abstract: An apparatus for rotating a tubular, the apparatus, in at least certain aspects including a frame, a rocker assembly connected to the frame, the rocker assembly including a top rocker arm pivotably mounted to the frame, and a bottom rocker arm pivotably mounted to the frame, top torque apparatus connected to the frame, upper gripper apparatus connected to the frame for gripping a primary tubular (e.g., but not limited to a first pipe), lower gripper apparatus connected to the frame for gripping a secondary member (e.g.