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| Number | Title | Issue Date |
| 7832470 | Mouse hole support unit with rotatable or stationary operation The present invention allows for the connection of multiple sections of drill pipe in a mouse hole by securing a given section of pipe in the hole and delivering a rotational force to secure that pipe section to another section of drill pipe placed above it over the... | 11/16/2010 |
| 7353880 | Method and apparatus for connecting tubulars using a top drive An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch, at least one wire line, and a device for gripping the tubular, the arrangement being such that, in use, the winch can be used to winch said at least one wire and said device... | 04/08/2008 |
| 7350586 | Casing running tool and method of using same An automated tubular running tool for use in drilling systems and the like allows for the picking up, positioning, stabbing and threadedly connecting a tubular segment to a tubular string being held by the rig by a spider. The tool comprises a pivoting arm, which ca... | 04/01/2008 |
| 7331746 | Apparatus for handling and racking pipes An apparatus for handling pipes in a derrick and racking the pipes on a pipe racking assembly mounted on the derrick is provided to improve the stability of transferring pipes during a round trip operation. The apparatus includes a rotatable gate assembly mounted on... | 02/19/2008 |
| 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 |
| 7293618 | Power slip for drillpipe This invention relates to a mechanical apparatus for gripping and manipulating tubular members, such as drill pipe. The apparatus is essentially an automated slip puller, which generally comprises a slip base, a pulling mechanism pivotally attached to the slip base,... | 11/13/2007 |
| 7284617 | Casing running head Methods and apparatus for drilling with a top drive system. In one aspect, the apparatus provides a tubular gripping member for use with a top drive to handle a tubular comprising a housing operatively connected to the top drive and a plurality of gripping elements ... | 10/23/2007 |
| 7284624 | Drill gripping device and method A drill gripping device is shown with an inexpensive and compact design. In one embodiment, an inexpensive and more compact design is possible through the use of a single actuator with a single gripping portion of a drill gripping device. Embodiments of drill grippi... | 10/23/2007 |
| 7281587 | Apparatus and methods for tubular makeup interlock Apparatus and methods used to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. Additionally, the apparatus and methods may be used for running in wellbore components or for a drill string. ... | 10/16/2007 |
| 7267168 | Spider with discrete die supports The spider, arranged for support on a drilling rig, is fitted with a plurality of slips peripherally distributed about a slip bowl. Each slip has a plurality of pipe gripping dies distributed vertically and resting on individual abutment surfaces on the slip. Each s... | 09/11/2007 |
| 7246983 | Pipe racking system The pipe racking system is designed to handle drilling tubulars (primarily drill pipe and drill collars) between the racked or setback position and the well center. The racking system can mechanically grasp a stand of pipe, lift the pipe sufficient for free movement... | 07/24/2007 |
| 7228913 | Tubular clamp apparatus for top drives and methods of use An apparatus for releasably clamping and holding a member for wellbore operations, the apparatus having a main body, two opposed clamping apparatuses in the main body, the two opposed clamping apparatuses spaced-apart for selective receipt therebetween of a member t... | 06/12/2007 |
| 7222683 | Wellbore top drive systems An containerized top drive system including a container, top drive apparatus removably disposed within the container, an extension system for moving the top drive apparatus generally horizontally within a derrick, the top drive apparatus secured to the extension sys... | 05/29/2007 |
| 7213656 | Apparatus and method for facilitating the connection of tubulars using a top drive An apparatus and method for facilitating the connection of tubulars using a top drive and is, more particularly but not exclusively, intended for facilitating the connection of a section or stand of casing to a string of casing. ... | 05/08/2007 |
| 7191686 | Method and apparatus for connecting and disconnecting threaded tubulars A system for screwing together threaded connections includes a pair of moveable arms which first grip the tubular to provide a contact force against three hydraulically powered drive rollers, that are contained within the arms. The three drive rollers will screw or ... | 03/20/2007 |
| 7188683 | Drilling method A system and method is disclosed for continuously supplying drilling fluid down a bore hole while adding or removing tubulars. ... | 03/13/2007 |
| 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 |
| 7117948 | Convertible jack A snubbing unit for running and retrieving a string of tubing into a well under pressure selectively operates in a stand alone mode and a rig assist mode. The unit has a lower frame for mounting during the stand alone mode on a snubber blowout preventer. Stationary ... | 10/10/2006 |
| 7117938 | Drill pipe connecting and disconnecting apparatus Drilling rig apparatus for connecting and disconnecting well pipe at a drilling rig. A remotely controlled power wrench assembly is mounted on a remotely controlled lifting mechanism attached to a base spaced about the well axis on the rig floor. The wrench assembly... | 10/10/2006 |
| 7086461 | Combined grip control of elevator and spider slips Apparatus for gripping and releasing a tubular and comprising an elevator (13) having slips (15) for gripping and releasing a tubular (39,40). A spider (12) has slips (14) for gripping and releasing the tubular (33). A mecha... | 08/08/2006 |
| 7073598 | Apparatus and methods for tubular makeup interlock The present invention provides for an apparatus and methods to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. Additionally, the apparatus and methods can be used to for running in casing, run... | 07/11/2006 |
| 7055609 | Handling and assembly equipment and method A handling and assembly system and method for use in deploying tubing in a subterranean environment. A framework is used to linearly engage sequential tubular members as a tubing string is formed and run into a subterranean environment. The system also facilitates t... | 06/06/2006 |
| 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 |
| 7036202 | Apparatus and method for handling of tubulars The present invention provides an apparatus for attachment to pipe handling arm, comprising a clamp for gripping a tubular and a guide for aligning said tubular with another tubular prior to connection thereof, characterized in that said clamp and said guide are mov... | 05/02/2006 |
| 7036396 | Drill pipe spinner device In spinner tongs, a so-called spinner (30), incorporated in an iron roughneck and thus serving to rotate a drill pipe during connection thereof to a drill string or during division of the drill string into individual pipes, the aim has been to reduce damage o... | 05/02/2006 |
| 7025147 | Apparatus for, and method of, landing items at a well location An apparatus for, and method of, lowering items from a drilling rig to a well located below it. One embodiment includes the use of a landing string comprised of drill pipe having an enlarged diameter section with a shoulder along with upper and lower holders having ... | 04/11/2006 |
| 7021374 | Method and apparatus for connecting tubulars using a top drive An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch (15), at least one wire line (4, 5), and a device (2) for gripping the tubular (3), the arrangement being such that, in use, the winch (15)... | 04/04/2006 |
| 7004259 | Apparatus and method for facilitating the connection of tubulars using a top drive An apparatus for facilitating the connection of tubulars using a top drive, the apparatus comprising a supporting member (13) connectable to said top drive (3) characterized in that it further comprises an internal tool (30) for engaging said tu... | 02/28/2006 |
| 6997265 | Method and apparatus for offline standbuilding A method and apparatus for moving pipe on a rig floor between a number of different stations including an off-floor rack, a preparation opening, a borehole, and a storage area, such that tubulars can be loaded onto the drill floor, prepared at the preparation openin... | 02/14/2006 |
| 6997251 | Method and apparatus for controlling the ascent and descent of pipe in a well bore A method for controlling the ascent and descent of a tubular member passing through a pipe or casing slip into a well bore. A float control member is affixed beneath the top surface of the pipe or casing slip. The control member is activated to control the raising o... | 02/14/2006 |
| 6976298 | Methods and apparatus for connecting tubulars using a top drive An apparatus for facilitating the connection of tubulars using a top drive, the apparatus comprising a stator attachable to said top drive, and a supporting member for supporting a tool, wherein means are provided to allow substantially horizontal movement of said s... | 12/20/2005 |
| 6976540 | Method and apparatus for offline standbuilding A method and apparatus for moving pipe on a rig floor between a number of different stations are provided. Generally the apparatus includes pipehandling equipment arranged to interact with an off-floor rack, a preparation opening, a borehole, and a storage area, suc... | 12/20/2005 |
| 6955224 | Casing alignment tool A casing alignment tool detachably mounts on a wellhead flange for moving a section of a casing into a concentric alignment with the wellhead of a well bore. The tool has a base plate attachable to the flange and a perpendicularly extending back plate, which support... | 10/18/2005 |
| 6915857 | Non-seize material attachment for a drill slip system An oil or gas well slip system is provided that includes a first movable member having an interactive contact surface and a second movable member having a mating interactive contact surface for slidable engagement with the interactive contact surface of the first mo... | 07/12/2005 |
| 6880630 | Guide support for rig mounted continuous feed injection unit A continuous well string injection system, comprising a rig, such as a drilling or service rig, a continuous feed injection unit suspended from the rig, a continuous well string guide forming a conduit for continuous well string between a continuous well string hold... | 04/19/2005 |
| 6854520 | Apparatus and method for handling a tubular An apparatus for inserting or removing a string of tubulars from a borehole includes a makeup/break out mechanism which is capable of adding a tubular to or removing a tubular from the string and handling mechanism which feeds a tubular into, or removes a tubular fr... | 02/15/2005 |
| 6845814 | Pipe-gripping structure having load rings A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string, wherein each slip segment comprises a head region, a toe region, and an inner radial surface axially extending between t... | 01/25/2005 |
| 6820705 | Friction support assembly for a slip bowl A method of supporting an pipe in a bowl without marking the surface of the pipe by providing a pair of intermediate surfaces between the sloping surface of the bowl and the contact surface with the pipe. The intermediate surfaces are approximately perpendicular to ... | 11/23/2004 |
| 6793020 | Mechanical torque table and method The present invention includes an apparatus and method to insert a small diameter pipe into a borehole while holding a larger diameter pipe. The apparatus includes a table attached to a centralized base which, in turn, provides a telescopic stop tower. The stop towe... | 09/21/2004 |
