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| Number | Title | Issue Date |
| 7992634 | Adjustable pipe guide for use with an elevator and/or a spider One embodiment provides an adjustable guide 10a to steer the end 90 of a pipe string 88 into position to be engaged and supported by a pipe gripping apparatus such as, for example, an externally gripping elevator assembly 10. The a... | 08/09/2011 |
| 7779904 | Guide rail plate for top drive of a drilling system A guide rail plate for top drive of a drilling system, including a guide rail plate consisting of 5-7 guide rail sections, characterized in that there is a boss and a mated recess on a surface of an upper guide rail section and an opposite surface of a lower guide r... | 08/24/2010 |
| 7766080 | Snubbing jack A snubbing jack includes a first telescopic member and a second telescopic member. A stationary plate and a movable plate are affixed to the telescopic members. The movable plate moves away from the stationary plate upon expansion of the telescopic member and moves ... | 08/03/2010 |
| 7401656 | Mobile drilling rig with dual carriers A rig (10) for selectively inserting coiled tubing or threaded tubulars into a well includes a mast (14) extending upward from a mast carrier (12), and a coiled tubing injector (16) and a coiled tubing reel (26) supported on a coil... | 07/22/2008 |
| 7370707 | Method and apparatus for handling wellbore tubulars Aspects of the present invention provide a tubular handling system for handling wellbore tubulars. In one aspect, the present invention provides a tubular handling system adapted to retain a tubular without damaging the outer surface of the tubular. In another aspec... | 05/13/2008 |
| 7357185 | Subsea tubing hanger assembly for an oil or gas well A subsea tubing hanger assembly is disclosed which comprises a tubing hanger (12) having a plurality of conduits (14). A pup joint (16) is connected to the hanger (12) and a shroud (20) surrounds the pup joint (16). A plural... | 04/15/2008 |
| 7350562 | Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use A drilling flange and an independent screwed wellhead provides a metal-to-metal seal that supplements the traditional elastomeric O-rings for providing a fluid seal between the drilling flange and the wellhead. The metal-to-metal seal may be achieved using a metal r... | 04/01/2008 |
| 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 |
| 7284618 | Method and a device for automated control of coil pipe operations An apparatus and automated control of the apparatus for use in coiled pipe operations is provided. The apparatus includes a mobile rig or trailer that carries a tower having attached thereto a reel of coiled tubing and a standard coiled tubing injector. The tower is... | 10/23/2007 |
| 7258171 | Internal riser rotating control head A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing.... | 08/21/2007 |
| 7249637 | Method and device to clamp control lines to tubulars The inventions relates to an apparatus for connecting a control line to a tubular string. In one embodiment, the apparatus includes a guide boom pivotable around a location adjacent the string and with a guide member at an end thereof to guide the control line. The ... | 07/31/2007 |
| 7237607 | Tubular stabbing protector and method A tubular stabbing protector includes: a plurality of body sections together forming a first opening and a second opening, the first opening sized to be secured over a pin end of an oilfield tubular and the second opening sized to fit over a connection to which the ... | 07/03/2007 |
| 7201233 | Arm for moving flexible lines at a well site A movable arm 10 engages a flexible line 50 at a well site for positioning the flexible line between run-in position for passing the flexible line with a tubular through a well hole in the rig floor and a clamping position wherein the flexible line is ... | 04/10/2007 |
| 7159669 | Internal riser rotating control head A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing.... | 01/09/2007 |
| 7143830 | Apparatus and method for installation of subsea well completion systems A method for installing a subsea completion system comprises installing a conductor housing on the sea floor, landing a wellhead in the conductor housing, securing a BOP to the wellhead, landing a casing hanger in the wellhead through the BOP, connecting a tubing ha... | 12/05/2006 |
| 7117945 | Well operations system A wellhead has, instead of a conventional Christmas tree, a spool tree (34) in which a tubing hanger (54) is landed at a predetermined angular orientation As the tubing string can be pulled without disturbing the tree, many advantages follow, including... | 10/10/2006 |
| 7111676 | Pipe centering device The preferred embodiment includes methods and apparatus for locating a member within an aperture. One preferred apparatus generally includes a housing containing at least one rotatably connected ring, and a plurality of tie members spaced evenly about the ring's per... | 09/26/2006 |
| 7111689 | Coiled tubing injector deployment assembly and method An apparatus for transporting an injector assembly, such as an injector and a BOP, for coiled tubing to a wellhead may have a platform, such as a trailer, having a shaft attached thereto by at least one bracket. Pivotally on the bracket may be a boom, which may have... | 09/26/2006 |
| 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 |
| 7100697 | Method and apparatus for reforming tubular connections The present invention generally relates to methods and apparatus for connecting tubulars and reforming the connection between the tubulars. In one aspect of the invention, the tubulars are aligned, connected, and then reformed at the connection. In one embodiment, t... | 09/05/2006 |
| 7090254 | Apparatus and method aligning tubulars In one aspect, an apparatus for aligning tubulars is provided, comprising at least one guide, a tong, and a backup unit, wherein the guide is arranged on or between the tong and the backup unit, and wherein the guide is, in use, movable towards and away from the tub... | 08/15/2006 |
| 7090026 | Apparatus and method for injecting tubing in a well bore An apparatus and method for moving a tubing along a path, according to which the tubing is engaged by an outer chain which is driven to advance the tubing. The chain is adapted to be deflected radially in response to an increase in the diameter of the tubing, and a ... | 08/15/2006 |
| 7090021 | Apparatus for connecting tublars using a top drive An apparatus for facilitating the connection of tubulars using a top drive, said apparatus comprising a motor (4, 4′) for rotating a tool (30) for drivingly engaging a tubular, and means (3) for connecting said motor (4, 4′) to said t... | 08/15/2006 |
| 7073592 | Jacking frame for coiled tubing operations A modular work system permits Rig Up time to be substantially reduced by reducing the number of crane lifts required to offload equipment for a transport boat or vehicle. This is achieved by developing transport skids capable of holding multiple system components. T... | 07/11/2006 |
| 7040393 | Choke and kill line systems for blowout preventers The invention is directed to pressure lines for use with equipment associated with drilling and production risers, and in particular, pressure lines having breechblock connections with the equipment and with choke and kill lines for use in connection with different ... | 05/09/2006 |
| 7036578 | Tubing guide and coiled tubing injector A coiled tubing injector assembly includes a coiled tubing injector and a tubing guide. The tubing guide has an automatic clamping mechanism that includes a pair of clamping slips. The clamping slip will automatically move from an open position in which coiled tubin... | 05/02/2006 |
| 7025136 | Torque reduction tool A tool for reducing torque on work string, eg for gas or oil production, comprises an upper clamp (2), a lower clamp (3) and connection means (4), the three components formed as a unitary structure (1). The tool also comprises bearing mea... | 04/11/2006 |
| 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 |
| 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 |
| 6964306 | Manifold device and method of use for accessing a casing annulus of a well A manifold device connects in series between the wellhead and the outer casing of a well for providing access to the outer casing of the well without removing the wellhead. The device includes a tubular body for receiving the tubing string of the well therethrough. ... | 11/15/2005 |
| 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 |
| 6948575 | Slip manipulating apparatus The spider for large pipe has a base that straddles a slip bowl and supports an overarm that extends part way around pipe to be supported. The overarm is pivotally attached to the base and is moved vertically by an air bag or power cylinders to move a slip assembly ... | 09/27/2005 |
| 6945325 | Run and retrieval wear bushing and tool A wear bushing has a lower portion that is landed on a casing hanger in a wellhead housing. The wear bushing is mounted to the running tool, which is joined to a drill string. With running-in keys locked on the tool, the wear bushing is lowered down the well into th... | 09/20/2005 |
| 6923253 | Pivoting gooseneck A gooseneck for coiled tubing operations have a folding design to allow for a more compact design for storage and transport. The gooseneck may remain attached to the injector during transport, thereby decreasing the equipment required to move and set-up the coiled t... | 08/02/2005 |
| 6907934 | Universal top-drive wireline entry system bracket and method A bracket and tension rod device is mounted to a top-drive dolly to carry the weight of a sheave wheel assembly. The device is deployed by connecting the sheave wheel assembly to a rigid dolly arm with an adjustable tension rod to relieve a gooseneck from adverse te... | 06/21/2005 |
| 6892810 | Gripper block for coiled tubing injector with variable tubing size capability An improved V-style gripper block to better accommodate a variable outer diameter material (e.g. cable, plastic, wire, or pipe). The gripper block comprises a block body being connectable to a gripper chain in an injector apparatus, a gripper plate having arcuate an... | 05/17/2005 |
| 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 |
| 6830101 | Pivoting gooseneck A gooseneck for coiled tubing operations have a folding design to allow for a more compact design for storage and transport. The gooseneck may remain attached to the injector during transport, thereby decreasing the equipment required to move and set-up the coiled t... | 12/14/2004 |
| 6827143 | Casing centering tool assembly A centering tool assembly helps centrally position a casing in a tubing using a baseplate, actuator, support tube, power source, and reaction studs. The baseplate is positioned on an outside edge of the tubing. The actuator is either preinstalled on the baseplate or... | 12/07/2004 |
| 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 |
