Modular drilling rig substructure
DCFirst Claim
1. A process to transport and assemble a drilling rig substructure, which process comprises:
- transporting a driller side substructure section having a floor and a base and transporting an off driller side substructure section having a floor and a base to a rig site so that said sections are spaced from and parallel to each other;
transporting a center substructure section to said rig site;
moving said center substructure section into a space between said driller side section and said off driller side section;
connecting said center substructure section to said driller side and to said off driller side substructure section; and
raising a floor of said driller side substructure section and raising a floor of said off driller side substructure section while both connected to said center substructure section from a transport position to a use position while maintaining said floors parallel to said bases.
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Accused Products
Abstract
A process to transport and assemble a drilling or workover rig substructure. The process includes the steps of transporting a driller side substructure section and an off driller side substructure section to a rig site so that the sections are spaced from and parallel to each other. A center substructure section is transported to the rig site. The center substructure section is moved into a space between the driller side and the off driller side sections. The center substructure section is thereafter connected to the driller side and to the off driller side subsections. A floor of the driller side substructure and a floor of the off driller side substructure are raised while both connected to the center substructure section from a transport position to a use position while maintaining the floors parallel to the bases.
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Citations
44 Claims
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1. A process to transport and assemble a drilling rig substructure, which process comprises:
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transporting a driller side substructure section having a floor and a base and transporting an off driller side substructure section having a floor and a base to a rig site so that said sections are spaced from and parallel to each other;
transporting a center substructure section to said rig site;
moving said center substructure section into a space between said driller side section and said off driller side section;
connecting said center substructure section to said driller side and to said off driller side substructure section; and
raising a floor of said driller side substructure section and raising a floor of said off driller side substructure section while both connected to said center substructure section from a transport position to a use position while maintaining said floors parallel to said bases. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A process to disassemble and transport a drilling rig substructure, which process comprises:
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lowering a floor of a driller side substructure section and lowering a floor of an off driller side substructure section at a rig site while said sections are connected to a center subsection from a use position to a transport position while maintaining said floors parallel to a base of each said section;
disconnecting said center substructure section from said driller side section and from said off driller side subsection; and
moving said center substructure section from a space between said driller side section and said off driller side section. - View Dependent Claims (10, 11)
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12. A modular drilling rig substructure, which comprises:
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a driller side substructure section having a base, a floor and a plurality of legs extending between said base and said floor;
an off driller side substructure section having a base, a floor and a plurality of legs extending between said base and said floor; and
a center substructure section connectable to said floor of said driller side substructure section and said floor of said off driller side substructure section, wherein said center substructure section is raised, lowered and supported only by said driller side substructure section and said off driller side substructure section. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A modular drilling rig substructure which comprises:
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a driller side substructure section having a base and a floor parallel to said base;
an off driller side substructure section having a base and a floor parallel to said base;
a center substructure section connectable to said floors; and
means to move said floors while connected to said floors vertically between a storage position and a use position while maintaining said floors parallel to said bases. - View Dependent Claims (21, 22)
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23. A process to transport and assemble a workover rig substructure, which process comprises:
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transporting a driller side substructure section having a floor and a base and transporting an off driller side substructure section having a floor and a base to a rig site so that said sections are spaced from and parallel to each other;
transporting a center substructure section to said rig site;
moving said center substructure section into a space between said driller side section and said off driller side section;
connecting said center substructure section to said driller side and to said off driller side substructure section; and
raising a floor of said driller side substructure section and raising a floor of said off driller side substructure section while both connected to said center substructure section from a transport position to a use position while maintaining said floors parallel to said bases. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A process to disassemble and transport a workover rig substructure, which process comprises:
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lowering a floor of a driller side substructure section and lowering a floor of an off driller side substructure section at a rig site while said sections are connected to a center subsection from a use position to a transport position while maintaining said floors parallel to a base of each said section;
disconnecting said center substructure section from said driller side section and from said off driller side subsection; and
moving said center substructure section from a space between said driller side section and said off driller side section. - View Dependent Claims (32, 33)
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34. A modular workover rig substructure, which comprises:
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a driller side substructure section having a base, a floor and a plurality of legs extending between said base and said floor;
an off driller side substructure section having a base, a floor and a plurality of legs extending between said base and said floor; and
a center substructure section connectable to said floor of said driller side substructure section and said floor of said off driller side substructure section, wherein said center substructure section is raised, lowered and supported only by said driller side substructure section and said off driller side substructure section. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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42. A modular workover rig substructure which comprises:
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a driller side substructure section having a base and a floor parallel to said base;
an off driller side substructure section having a base and a floor parallel to said base;
a center substructure section connectable to said floors; and
means to move said floors while connected to said floors vertically between a storage position and a use position while maintaining said floors parallel to said bases. - View Dependent Claims (43, 44)
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Specification