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| Number | Title | Issue Date |
| 7337861 | Method and a device for preventing pipeskidding A method and device for preventing a pipe string (5) clampingly arranged in a slips (2) from slipping out of the slips (2) in the event of the pipe string (5) slipping in the slips (2), wherein a pipe clamp/tong (22) is clam... | 03/04/2008 |
| 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 |
| 7313986 | Tubular-drill bit connect/disconnect apparatus An apparatus for rotating a tubular with respect to a drill bit, e.g., for making or breaking a connection between a tubular and a drill bit, the apparatus, in at least certain aspects including a frame, gripper apparatus connected to the frame for gripping and rota... | 01/01/2008 |
| 7296630 | Hands-free bail-elevator locking device with combined power/control connector, bail spreader and method for use A method and apparatus for raising or lowering a tubular in a well wherein bails are conventionally coupled to elevator ears and locking assemblies secured to the outer sides of the lower bail eyes for remote controlled clamping to nipples integral with and extendin... | 11/20/2007 |
| 7225865 | Apparatus for positioning a tong and drilling rig provided with such an apparatus A method and apparatus for positioning a tong comprises a piston and cylinder assembly and a mounting assembly therefor. The mounting assembly is mounted on a support beam in the drilling derrick and the piston and cylinder assembly is pivotally mounted on the mount... | 06/05/2007 |
| 7216717 | Dual elevator system and method A dual elevator system and method which, in one embodiment, includes two elevators and a table for supporting one or both of the elevators thereon, for shuttling an elevator between well center and offset standby positions, and for hands-free coupling and uncoupling... | 05/15/2007 |
| 7188547 | Tubular connect/disconnect apparatus An apparatus for rotating a tubular, the apparatus, in at least certain aspects including a frame, a rocker assembly connected to the frame, the rocker assembly including a top rocker arm pivotably mounted to the frame, and a bottom rocker arm pivotably mounted to t... | 03/13/2007 |
| 7165634 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 01/23/2007 |
| 7163061 | Apparatus and method for supporting structures on offshore platforms An apparatus for supporting a structure on a platform. The platform may be a floating platform. The apparatus comprises a base frame, wherein the base frame has a first bracket and a second bracket attached thereto. The apparatus further includes a x-axis frame havi... | 01/16/2007 |
| 7156170 | Methods and apparatus for severing nested strings of tubulars An apparatus and method for use in severing casing as it is pulled from a wellbore. In one aspect, the apparatus, includes a clamping assembly, a drilling assembly and a cutting assembly. The apparatus is disposed at the end of a telescopic arm, with the components ... | 01/02/2007 |
| 7147068 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 12/12/2006 |
| 7149600 | Pipe storage and inventory control chest A materials storage chest system stores and selectively dispenses pipe in response to a controller which selectively limits access thereto. A material dispensing opening prevents access to the chest other than through the controller. A communication system provides ... | 12/12/2006 |
| 7114235 | Automated pipe joining system and method A method and apparatus for making and breaking tubular connections at the surface of a well by utilizing a pipe joining system. The pipe joining system includes a movable support frame for supporting and integrating on a rig floor the tools associated with making an... | 10/03/2006 |
| 7104316 | Tong positioning and alignment device An improved tong positioning apparatus which includes a base positionable on the rig floor; a hydraulic cylinder positioned on the base, having a first end engageable to a rear support member and a second end engageable to a pivotal moment arm; a forward shock attac... | 09/12/2006 |
| 7083007 | Fingerboard with pneumatically actuated finger latches A fingerboard having at least one fingerboard row for storing a plurality of threaded tubulars is provided. A plurality of latches are connected to the at least one fingerboard row for lockingly retaining at least one threaded tubular, wherein each of the plurality ... | 08/01/2006 |
| 7077209 | Mast for handling a coiled tubing injector A mast for lifting and suspending over a wellhead a coiled tubing injector and blow out preventer is pivotally mounted on a rear portion of a truck. The mast has two side-by-side telescoping legs that extend and retract synchronously. When in a retracted position, t... | 07/18/2006 |
| 7048050 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 05/23/2006 |
| 7044216 | Large diameter flush-joint pipe handling system An elevator for assembling a plurality of a large diameter pipe joints into a pipe string with a drilling rig is disclosed. The first one of a number of large diameter pipe joints is adapted to threadingly engage another large diameter pipe joint. The elevator is de... | 05/16/2006 |
| 7043814 | Method for aligning tubulars An apparatus is provided with position sensors. When the apparatus has moved one tubular into alignment with another tubular a button on a remote control console is pressed to memorize the position. After the next tubular has been gripped by the apparatus a “recal... | 05/16/2006 |
| 7036610 | Apparatus and method for completing oil and gas wells A method of drilling and completing a wellbore in a geological formation to produce hydrocarbons from a well comprising at least the following four steps: drilling the well with a retrievable drill bit attached to a casing; removing the retrievable drill bit from th... | 05/02/2006 |
| 6969222 | Device for transferring rods The invention relates to a rod transfer device for horizontal driving units for underground trenchless driving, having a storage container and a pivotable gripper, the gripper being arranged in such a way that the orbit of the gripper intersects both the transfer re... | 11/29/2005 |
| 6966106 | Method and apparatus for transporting and running tubulars The invention is a transporting apparatus for holding lengths of tubulars and transporting tubulars to a drill floor of a drill rig, wherein the transport container for tubulars has a bottom side, a two sides connected to the bottom side, and two ends connected to t... | 11/22/2005 |
| 6965230 | Apparatus and method for determining the position of the end of a threaded connection, and for positioning a power tong relative thereto Apparatus and method for positioning a power makeup/breakout device, commonly referred to as a “power tong unit,” along the longitudinal axis of a tubular, with respect to the end of a connection. A probe having an electric coil is mounted on the power tong. An ... | 11/15/2005 |
| 6932553 | Multipurpose unit for drilling and well intervention The invention is a multipurpose system for a drilling and well intervention made of a pivotable, slidable cantilever on a platform adapted to pivot and to slide along an x-y axis; a tower disposed on the cantilever with a mast, a hoist winch, a splittable block conn... | 08/23/2005 |
| 6926103 | Splittable block on a derrick The invention is a hoist system for a derrick with a derrick inside, a derrick outside, and a derrick top side; a splittable block connected to the derrick top side; a hoisting cable guided through the splittable block; a moveable trolley with a trolley top side and... | 08/09/2005 |
| 6901998 | Method for using a multipurpose system The invention is a method for drilling a well and for well intervention using a multipurpose system on a pivoting, slidable cantilever on a platform to drill a well and to perform well intervention operations, wherein the method involves pulling a completion tubing ... | 06/07/2005 |
| 6860694 | Horizontal pipe handling device A device for handling pipes or stands including a transportation carriage for transport of pipes or stands between a pipe storage and a place for use. The carriage includes picking columns, each having a first picking arm arranged to move substantially vertically. T... | 03/01/2005 |
| 6854952 | Device for extending or shortening a network of pipes In a device for extending and shortening tubings used to transport drill cuttings and stripped material, a tube storage or tube magazine is provided on a frame (1) capable of being supported on the floor, wherein at least one lifting means (3) capable ... | 02/15/2005 |
| 6609565 | Trolley and traveling block system A trolley hoisting system for use in a rig has a derrick mounted to the rig, a winch line extending from an upper end of the derrick, and a traveling block located at one end of the winch line. An injector trolley has at least one cavity for allowing the ... | 08/26/2003 |
| 6591904 | Equipment for stowing and handling drill pipes Equipment (1) for stowing and handling drill pipes (2), the equipment being provided with a device for transporting the drill pipes (2) from a service well (9) to a rack container (11); the transport device being defined by a central control tower (23) lo... | 07/15/2003 |
| 6588981 | Pipe handling apparatus A pipe handling apparatus for laying elongate articles in deep waters includes a tiltable pipe handling structure housing a traveling clamp for holding and/or paying out under tension the elongate article and a fixed clamp. The traveling clamp is driven v... | 07/08/2003 |
| 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 |
| 6524049 | Semi-submersible, mobile drilling vessel with storage shaft for tubular drilling equipment The drilling vessel includes at least one floating body and a platform which is supported by one or more support columns on the floating body and includes a drilling installation. The vessel is provided with storage provisions for tubular drilling equipme... | 02/25/2003 |
| 6464037 | Reconfigurable work platform for aerial work platform system, aerial work platform system using same, and method for reconfiguring a work platform A reconfigurable work platform for an aerial work platform system includes at least one outwardly tiltable portion on which an occupant of the work platform can lean so as to extend his or her lateral reach. This is useful when the work platform itself ca... | 10/15/2002 |
| 6408954 | Gripping mechanism for a directional drilling machine A horizontal directional drilling machine including a rod transfer member having a rod retainer that is movable between a first position and a second position. When the rod retainer is in the first position, the rod retainer is adapted to retain a pipe on... | 06/25/2002 |
| 6364011 | System and method for handling tubular members An apparatus for handling a plurality of tubular members. The apparatus comprises A tong member for coupling a first tubular with a second tubular. A first axial roller is positioned on the first side of the tong member and a second axial roller is positi... | 04/02/2002 |
| 6361262 | Drilling vessel provided with auxiliary tower or auxiliary mast The present invention relates to a drilling vessel with drilling tower or drilling mast for drilling in the earth's surface from said vessel, for example for oil or gas. The drilling vessel according to the present invention is characterized by an auxilia... | 03/26/2002 |
| 6343892 | Drilling tower A derrick comprises equipment (41) for movement of a pipe line/drill stem (13) or a pipe section (29) axially in the derrick (12), and equipment (65) for turning of same about its longitudinal axis, together with equipment (31) for installing pipe section... | 02/05/2002 |
| 6209851 | Drill floor hole A drill floor hole comprising a through-going vertical opening in a drill floor. A pipe holder is mounted so as to be capable of vertical movement below the opening. The pipe holder is suspended in a pulley loop in a wire drive wherein a wire is attached ... | 04/03/2001 |
| 6189628 | Earth borer system with drill-rod changer This invention relates to an earth borer system with a frame (48) incorporating a moveable rotary drive (50, 54) for a drill rod assembly consisting of at least two drill rods which can be detachably connected with one another along a bore axis (58); with... | 02/20/2001 |
