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| Number | Title | Issue Date |
| 8052370 | System for handling pipes between a pipe rack and a derrick, and also a device for assembling and disassembling pipe stands A system for handling pipes between a pipe rack (16) and a derrick (1), which derrick (1) is located on a drilling deck (2), in connection with the production of petroleum products. The system comprises means (17, 9, 25) of carryin... | 11/08/2011 |
| 7322406 | Elevation sensor for a service hose and an apparatus for positioning and stabbing well tubulars An operational system and method and improved apparatus for positioning and stabbing well tubulars wherein: the grasping members of the apparatus can be folded and unfolded; the boom assembly can be pivoted to a downward clearance position; a plurality of stabbing a... | 01/29/2008 |
| 6543555 | Automatic loader for drill rods An automatic loader (10) for drill rods (11) adapted to be associated with a boring machine having a guide and drive assembly (12) for the drill rods (11) includes at least a store (13) containing a plurality of drill rods (11) and a movement assembly (14... | 04/08/2003 |
| 5762150 | Drill rod changer assembly A drill rod changer assembly for a drill rig includes an elongated support shaft having a housing at each end for retaining ends of drill rods, the support shaft being adapted for removable attachment to a drill rig structure, a carousel-type drill rod sp... | 06/09/1998 |
| 5297642 | Apparatus for storing drill rods An apparatus for storing drill rods, comprising two drill rod cartridges each comprising a rotating rotor provided with finger boards, guides for guiding the drill rods into gaps formed by the finger boards circumferentially around the axis of the rotor. ... | 03/29/1994 |
| 5263545 | Method and apparatus for drilling holes in soil or rock A method for drilling holes in soil or rock, especially for producing prestressed ground anchorage. A hole is drilled by a drill column formed of lengths of pipe with a drill bit driven by a rotary and/or percussive drive. The wall of the borehole is supp... | 11/23/1993 |
| 5174389 | Carousel well rig A well work-over drilling rig uses a single cylindrical column forming a mast for assembly and disassembly of a casing, pipe or rod forming a well string in a well bore. The mast supports a hydraulic ram for elevating a crown block having arms radially ex... | 12/29/1992 |
| 4897009 | Drill pipe handling apparatus Drill pipe handling apparatus including a magazine for holding a plurality of lengths of drill pipe and delivering each pipe into position for its removal by drilling apparatus which is operable to drill the pipe into the ground at an angle off vertical, ... | 01/30/1990 |
| 4892160 | Drill pipe transfer arm for angle drilling A drill pipe transfer arm supports the bottom portion of a drill pipe and positions it in relationship to the drill string to permit angle drilling with a tilted drill tower. The transfer arm is uniquely suited to circular carousels and features a drill p... | 01/09/1990 |
| 4718537 | Feeder head assembly A feeder head assembly is provided which includes a single pair of augers which collect bulk material contained within a vessel. These augers advance the material to a lifting conveyor. A frame pivotally mounted to a rotatable enclosure portion of the lif... | 01/12/1988 |
| 4708563 | Arrangement for storing pipes An arrangement for storing pipes in an offshore drilling installation below an upper deck carrying a derrick with associated equipment, comprising a pipe magazine below the upper deck, a horizontal transport means for the individual displacement of riser ... | 11/24/1987 |
| 4501524 | Drill string element handling apparatus An apparatus for the handling of drill string elements, such as rods or pipes in drill rigs. The apparatus comprises an elongated guide member, a drifter movably mounted on the guide member for reciprocable movement therealong, a plurality of drill string... | 02/26/1985 |
| 4455116 | Drill pipe handling and storage apparatus A drill pipe carousel is pivotal within a drilling mast between retracted and operating positions. The carousel contains a plurality of drill pipe receptacles for holding sections of drill pipe. Each of these drill pipe receptacles includes an upper and l... | 06/19/1984 |
| 4449592 | Automatic drill string section changer A mobile rock drill unit (10) is disclosed which automatically adds and removes drill string sections (26) from the drill string (24) of the drill unit. The drill unit includes a conventional drill motor (20) and a centralizer (40). A cylindrical storage ... | 05/22/1984 |
| 4445579 | Pipe carousel for well-drilling rig A drill pipe carousel comprises a circular pipe rack mounted for rotation about a vertical axis in a drilling mast, a rotational drive train and a push-pull mechanism for moving the rack to and from the drill string. The rack includes upper and lower supp... | 05/01/1984 |
| 3985189 | Drill rod handling device A carousel-type drill rod rack handles a plurality of drill rods having normal diameter holding portions, flats below the holding portions, and reduced necks below the flats. The upper support plate has collars that receive the holding portions and have o... | 10/12/1976 |
