Mobile rig and method
First Claim
1. A mobile rig for lowering a string comprising joints of conduit into a well, the system comprising:
- a rig transporter comprising a motorized unit;
a mast assembly;
a pivotal connection on said mast assembly, wherein said pivotal connection is positioned on an upper end of a first rail of a Y-base, wherein said Y-base is attached to a rear of said rig transporter, wherein said Y-base has a support plate positioned on an upper end of a rear most rail of said Y-base, and wherein said support plate only supports said mast assembly when said mast assembly is raised to an upright position;
at least one hydraulic arm pivotally mounted to said rig transporter and said mast assembly, wherein said at least one hydraulic arm is powered by said motorized unit and is operable for moving said mast assembly to said upright position and for lowering said mast assembly to a substantially horizontal position for transportation, said rig transporter having a height of less than or equal to 18 feet when said mast assembly is positioned in said substantially horizontal position for transportation; and
a hydraulically powered pipe tong for use in making up said joints of conduit secured to said mast assembly, said hydraulically powered pipe tong being mounted to said mast assembly so as to be raised with said mast assembly to said upright position and lowered with said mast assembly to said substantially horizontal position of said mast assembly for transportation while attached to said mast assembly, wherein said hydraulically powered pipe tong is powered by said motorized unit.
9 Assignments
0 Petitions
Accused Products
Abstract
A mobile rig for use in lowering a string comprising joints of a conduit into a well is provided with a rig transporter comprising a motorized unit, a mast assembly, a pivotal connection on the mast assembly with respect to the rig transporter. At least one hydraulic arm is pivotally mounted to the rig transporter and the mast assembly operable to move the mast to an upright position and for lowering the mast to a substantially horizontal position for transportation. In one embodiment, a top drive is mounted in the mast which is raised and lowered with the mast whereby the top drive is transported in the mast in the substantially horizontal position.
-
Citations
30 Claims
-
1. A mobile rig for lowering a string comprising joints of conduit into a well, the system comprising:
-
a rig transporter comprising a motorized unit; a mast assembly; a pivotal connection on said mast assembly, wherein said pivotal connection is positioned on an upper end of a first rail of a Y-base, wherein said Y-base is attached to a rear of said rig transporter, wherein said Y-base has a support plate positioned on an upper end of a rear most rail of said Y-base, and wherein said support plate only supports said mast assembly when said mast assembly is raised to an upright position; at least one hydraulic arm pivotally mounted to said rig transporter and said mast assembly, wherein said at least one hydraulic arm is powered by said motorized unit and is operable for moving said mast assembly to said upright position and for lowering said mast assembly to a substantially horizontal position for transportation, said rig transporter having a height of less than or equal to 18 feet when said mast assembly is positioned in said substantially horizontal position for transportation; and a hydraulically powered pipe tong for use in making up said joints of conduit secured to said mast assembly, said hydraulically powered pipe tong being mounted to said mast assembly so as to be raised with said mast assembly to said upright position and lowered with said mast assembly to said substantially horizontal position of said mast assembly for transportation while attached to said mast assembly, wherein said hydraulically powered pipe tong is powered by said motorized unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A mobile rig for lowering a string comprising joints of conduit into a well, the system comprising:
-
a rig transporter comprising a motorized unit; a mast assembly; a pivotal connection on said mast assembly with respect to said rig transporter, wherein said pivotal connection is positioned on an upper end of a first rail of a Y-base, wherein said Y-base is attached to a rear of said rig transporter, wherein said Y-base has a support plate positioned on an upper end of a rear most rail of said Y-base, and wherein said support plate only supports said mast assembly when said mast assembly is raised to an upright position; at least one hydraulic arm pivotally mounted to said rig and said mast assembly, wherein said at least one hydraulic arm is powered by said motorized unit and is for moving said mast assembly to said upright position and for lowering said mast assembly to a substantially horizontal position for transportation; and a top drive secured to said mast assembly, said top drive being mounted so as to be raised with said mast assembly to said upright position and lowered with said mast assembly to said substantially horizontal position of said mast assembly for transportation, wherein said top drive is powered by said motorized unit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A mobile rig for lowering a string comprising joints of a conduit into a well, the system comprising:
-
a rig transporter comprising a motorized unit; a mast assembly; a pivotal connection on said mast assembly, wherein said pivotal connection is positioned on an upper end of a first rail of a Y-base, and wherein said Y-base is attached to a rear of said rig transporter, wherein said Y-base has a support plate positioned on an upper end of a rear most rail of said Y-base, and wherein said support plate only supports said mast assembly when said mast assembly is raised to an upright position; and at least one hydraulic arm pivotally mounted to said rig transporter and said mast assembly, wherein said at least one hydraulic arm is powered by said motorized unit and is operable for moving said mast assembly to said upright position and for lowering said mast assembly to a substantially horizontal position for transportation, and wherein said rig transporter has a height of less than or equal to 20 feet when said mast assembly is positioned in said substantially horizontal position for transportation. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A method for making a mobile rig for lowering a string comprising joints of conduit into a well, the system comprising:
-
providing a rig transporter comprising a motorized unit; providing an elongate mast assembly; providing a pivotal connection on said mast assembly with respect to said rig transporter, wherein said pivotal connection is positioned on an upper end of a first rail of a Y-base, wherein said Y-base is attached to a rear of said rig transporter, wherein said Y-base has a support plate positioned on an upper end of a rear most rail of said Y-base, and wherein said support plate only supports the mast assembly when the mast assembly is raised to an upright position; pivotally mounting at least one hydraulic arm to said rig transporter and said elongate mast assembly, wherein said at least one hydraulic arm is operable for moving said elongate mast assembly to an upright position and for lowering said mast assembly to a substantially horizontal position for transportation, wherein said at least one hydraulic arm is powered by said motorized unit, and wherein when said mast assembly is in said upright position, the hydraulic actuators are angled toward a rear portion of said rig transporter, or when said mast assembly is lowered, said at least one hydraulic arm is angled toward a front portion of said rig transporter; providing that said rig transporter has a height of less than or equal to 18 feet when said mast assembly in said substantially horizontal position for transportation; and securing a top drive to said mast assembly, wherein said top drive is mounted so as to be raised with said mast assembly to said upright position and lowered with said mast assembly to said substantially horizontal position of said mast assembly for transportation, wherein said top drive is powered by said motorized unit. - View Dependent Claims (28, 29, 30)
-
Specification