A land-based drilling rig includes a first substructure and a second substructure, the second substructure being positioned generally parallel to the first substructure. The land-based drilling rig also includes a drill rig floor coupled to the first and second substructures, the drill rig floor including a V-door. The side of the drill rig floor has the V-door defining a V-door side of the drill rig floor, where the V-door side of the drill rig floor is parallel to the first substructure. The first and second substructures pivotably support the drill rig floor. The land-based drilling rig also includes a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill rig floor. The mast is pivotably coupled to one or more of the first substructure, the second substructure, and the drill rig floor by a mast pivot point. The mast includes a V-door side, the V-door side of the mast parallel to the first or second substructure. In addition, the land-based drilling rig includes a mast hydraulic lift cylinder coupled to the mast at a mast lift point and a choke manifold, the choke manifold positioned on the drill rig floor.

A safety apparatus for personnel on an oil drilling rig includes a cylindrical quick disconnect switch having a receptacle and a plunger. The receptacle has an open circuit pair of electrical wires. The plunger is configured to attach to a derrick man. The plunger and the receptacle are configured to mate when the plunger is inserted into the receptacle and to remain frictionally mated until pulled apart. The mating results in closing the circuit between the pair of electrical wires.

A safety apparatus for personnel on an oil drilling rig includes a cylindrical quick disconnect switch having a receptacle and a plunger. The receptacle has an open circuit pair of electrical wires. The plunger is configured to attach to a derrick man. The plunger and the receptacle are configured to mate when the plunger is inserted into the receptacle and to remain frictionally mated until pulled apart. The mating results in closing the circuit between the pair of electrical wires.

The present disclosure, in one or more embodiments, relates to a drilling rig with a self-elevating drill floor. The drilling rig may have one or more jacking systems that may operate to raise the drill floor. The one or more jacking systems may raise the drill floor to a height sufficient to accommodate a substructure such as a substructure box. A substructure box may be placed, and the one or more jacking systems may lower the drill floor onto the substructure box. Substructure boxes may be placed beneath the drill floor, using the one or more jacking systems, until a desired drill floor height is reached. In some embodiments, the one or more jacking systems may additionally operate to move the drilling rig, for example between adjacent wells on a pad drilling site. The jacking systems may operate the move the drilling rig using walking feet or another movement mechanism.

The present disclosure, in one or more embodiments, relates to a drilling rig with a self-elevating drill floor. The drilling rig may have one or more jacking systems that may operate to raise the drill floor. The one or more jacking systems may raise the drill floor to a height sufficient to accommodate a substructure such as a substructure box. A substructure box may be placed, and the one or more jacking systems may lower the drill floor onto the substructure box. Substructure boxes may be placed beneath the drill floor, using the one or more jacking systems, until a desired drill floor height is reached. In some embodiments, the one or more jacking systems may additionally operate to move the drilling rig, for example between adjacent wells on a pad drilling site. The jacking systems may operate the move the drilling rig using walking feet or another movement mechanism.

A safety valve handling apparatus for a well operation rig includes: a mounting structure for connection to the rig; a clamp for engaging a safety valve and configured to permit rotation of the safety valve within the clamp while the safety valve remains engaged by the clamp; and an arm connected between the mounting structure and the clamp, the arm being movable and adjustable to permit movement of the clamp relative to the mounting structure. The safety valve handling apparatus can be used for controlled safety valve handling on a well operation rig, even one oriented for a slanted operation.

A safety valve handling apparatus for a well operation rig includes: a mounting structure for connection to the rig; a clamp for engaging a safety valve and configured to permit rotation of the safety valve within the clamp while the safety valve remains engaged by the clamp; and an arm connected between the mounting structure and the clamp, the arm being movable and adjustable to permit movement of the clamp relative to the mounting structure. The safety valve handling apparatus can be used for controlled safety valve handling on a well operation rig, even one oriented for a slanted operation.

A method that includes providing an assembled drilling rig on a first supportive surface at a first drill site, the assembled drilling rig having a walking system associated therewith, the walking system being configured to translate and rotate relative to the assembled drilling rig to displace the assembled drilling rig; actuating the walking system to lift the assembled drilling rig to a clearance height, relative to the first supportive surface; positioning a trailer under the assembled drilling rig; wherein the trailer includes a platform located above a plurality of wheels; supporting the assembled drilling rig on the trailer platform; and relocating the assembled drilling rig from the first drill site to a second drill site by rolling the wheels across the ground.

Apparatuses and methods for erecting drilling structures including drill floors and drilling masts include attaching a rigging line to the drilling structure and to a strand jack arranged with at least one hydraulic jack and a plurality of clamps that alternatingly secure onto the rigging line and pull the rigging line in tension. Pulling the rigging line with the strand jack raises the drilling structures to an upright or elevated position.

Apparatuses and methods for erecting drilling structures including drill floors and drilling masts include attaching a rigging line to the drilling structure and to a strand jack arranged with at least one hydraulic jack and a plurality of clamps that alternatingly secure onto the rigging line and pull the rigging line in tension. Pulling the rigging line with the strand jack raises the drilling structures to an upright or elevated position.