Underground drilling rig and method for erecting same
AssigneeBentec GmbH Drilling & Oilfield Systems
InventorsJürgen Volkers, Arend Lödden, Achim Nordbeck
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Abstract
The Invention relates to an underground drilling rig (10) and a method for its erection, wherein the method, in a special embodiment, comprises erecting a mast structure (20) of the drilling rig (10) extending from a horizontal tunnel (production tunnel) into a vertical mast shaft (14) and by means of an erecting structure (50), wherein the mast structure (20) comprises a plurality of mast segments (60) connected to one another or connectable to one another.
Claims17
A method for erecting a drilling rig (10) for sinking boreholes on hydrocarbon deposits or for developing geothermal energy or other valuable materials or for research purposes, in a tunnel driven into a rock mass, which comprises a horizontal section functioning as a production tunnel (12) and production line, from which a vertical section extends as a mast shaft (14),
- characterized by the following method steps:
- erecting a mast structure (20) in the mast shaft (14) by means of an erecting structure (50) in the production tunnel (12),
- wherein the mast structure (20) comprises a plurality of mast segments (60) connected to one another or connectable to one another,
- wherein successive mast segments (60) are fed to the erecting structure (50) on an input side of the erecting structure (50) in a horizontal or at least substantially horizontal orientation,
- wherein by means of the erecting structure (50) in each case at least one mast segment (60) on an output side of the erecting structure (50) is erected in a vertical or at least substantially vertical orientation into the mast shaft (14) or at least pointing into the mast shaft (14), and
- wherein while feeding further mast segments (60) on the input side of the erecting structure (50) the or each mast segment (60) already vertically erected on the output side of the erecting structure (50) is raised into the mast shaft (14).
An apparatus for erecting a drilling rig (10) for sinking boreholes on hydrocarbon deposits or for developing geothermal energy or other valuable materials or for research purposes, in a tunnel driven into a rock mass, which comprises a horizontal section functioning as a production tunnel (12) and production line, from which a vertical section extends as a mast shaft (14),
- wherein the apparatus comprises an erecting structure (50) for erecting a mast structure (20) of the drilling rig (10),
- wherein the mast structure (20) comprises a plurality of mast segments (60) connected to one another or connectable to one another,
- wherein the erecting structure (50) is configured to:
- (a) receive at least one mast segment (60) being fed to an input side of the erecting structure (50) in a horizontal orientation, (b) guide said at least on mast segment through the erecting structure (50) or along the erecting structure (50) up to an output side of the erecting structure (50), and (c) erect said at least one segment in the area of the output side and brought into a vertical orientation.
Dependencies are inferred from the claim text.