Quotables
"There is no reason anyone would want a computer in their home."
Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8118090 | Hybrid wellhead system and method of use A hybrid wellhead system for a hydrocarbon well, having a wellhead supported by a conductor; an intermediate head spool secured to the wellhead by a hammer union; and a tubing head spool secured to the intermediate head spool by a hammer union. ... | 02/21/2012 |
| 7980298 | Wedge device A wedge device for clamping of pipes and tools during petroleum production, this wedge device comprising an annular mounting element arranged for connection to a deck or a rotary table, where a plurality of man wedges, with associated clamps and displaceable with re... | 07/19/2011 |
| 7918271 | Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device Wellhead assembly and method for providing a power connection to a downhole electrical device, such as a heater. Pressure-containing wellhead body members enclose a vertical wellbore and support therein an isolated tubing hanger and a grounding tubing hanger. The is... | 04/05/2011 |
| 7798208 | Wellhead assembly and method The invention provides a wellhead and a method for installing a wellhead assembly. The wellhead or casing head assembly comprises a first tubular having at least one aperture extending through a side wall thereof. The wellhead or casing head also comprises a second ... | 09/21/2010 |
| 7784535 | Top drive systems with reverse bend bails A bail support and a top drive system for an oilfield drill rig. The top drive system includes a drive apparatus, and the bails have bodies with upper head portions and two spaced-apart legs. Each leg includes an upper leg portion and a lower leg portion. The upper ... | 08/31/2010 |
| 7658225 | Polish rod clamp apparatus A polish rod clamp apparatus has a body defining a lower rod aperture and a tapered body recess. A cap defines an upper rod aperture and a tapered cap recess. Tapered gripper dies have upper and lower outer surfaces sloping inward from a central portion and inner su... | 02/09/2010 |
| 7614446 | Swivelling device for a downhole rod pump A swivelling device is provided for picking up or backing off a drive string after it has been stuck in a down hole. The device allows the drive string to move longitudinally and rotate. The device has a shaft rotatably mounted in a housing so that the shaft can fre... | 11/10/2009 |
| 7604047 | Universal tubing hanger suspension assembly and well completion system and method of using same A tubing hanger suspension assembly for an oil and gas well completion system and a method of installing same. The tubing hanger suspension assembly includes a tubing hanger housing which is positioned in the wellhead housing. The tubing hanger assembly includes a s... | 10/20/2009 |
| 7552762 | Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device Wellhead assembly and method for providing a power connection to a downhole electrical device, such as a heater. Pressure-containing wellhead body members enclose a vertical wellbore and support therein an isolated tubing hanger and a grounding tubing hanger. The is... | 06/30/2009 |
| 7527093 | Self-tightening safety tubular clamp A self-tightening safety tubular clamp for suspending a casing string or other tubular member within a well. In one embodiment, a base has an opening for receiving the casing string. A first gripping member and an opposing second gripping member are each adapted to ... | 05/05/2009 |
| 7448444 | Tubing saver rotator and method for using same A tubing rotator assembly that attaches to a casing head to suspend and rotate a tubing string in an oil well. The tubing assembly includes a rotation surface, such as a bearing, in which a tubing mandrel rests and allows one to rotate the tubing manually above the ... | 11/11/2008 |
| 7441594 | Full bore wellhead load shoulder and support ring A full bore support system for a hanger or other equipment in a wellhead features a support groove in the wellhead that can be integrally made or on an insert. A support ring can have a variety of configuration and features an energizing surface and a limit surface ... | 10/28/2008 |
| 7416020 | Wellhead isolation tool, wellhead assembly incorporating the same, and method of fracturing a well A wellhead assembly is provided including a casing and a tubular member mounted over the casing. A flange extends from the tubular member. A generally elongated annular member is provided in the tubular member. The generally elongated annular member has a first end ... | 08/26/2008 |
| 7407011 | Tubing annulus plug valve A tubing hanger lands in a tubular outer wellhead member and supports a string of production tubing. The tubing hanger has a production passage for communicating with the interior of the production tubing and an annulus passage for communicating with a tubing annulu... | 08/05/2008 |
| 7395867 | Hybrid wellhead system and method of use A hybrid wellhead system is assembled using a plurality of threaded unions, such as spanner nuts or hammer unions, for securing respective tubular heads and a flanged connection for securing a flow control stack to a top of a tubing head spool. The tubing head spool... | 07/08/2008 |
| 7395855 | Radially moving slips Slips (1, 21, 41) for engaging any jointed, coiled or flexible tubular with substantially no scoring, gouging or scraping, such as when supporting a drill string in a borehole or gripping a tubular (2, 22) during the connection or disconnection of a to... | 07/08/2008 |
| 7377311 | Wellhead valves A safety valve system for removing down-hole tools from a coal-bed methane well. The system includes first and second horizontally opposed stuffer-blocks, a stuffer-box housing for housing the stuffer-blocks, a means for attaching said stuffer-box housing to a coal-... | 05/27/2008 |
| 7363981 | Seal stack for sliding sleeve A method and apparatus for sealing a tool for use in a wellbore is provided. The seal is configured to be disposed in a tool comprising a ported sliding sleeve and a ported housing. The tool may be actuable between a closed and an open position. The seal is configur... | 04/29/2008 |
| 7322407 | Wellhead isolation tool and method of fracturing a well A wellhead assembly is provided including a casing and a tubular member mounted over the casing. A flange extends from the tubular member. A generally elongated annular member is provided in the tubular member. The generally elongated annular member has a first end ... | 01/29/2008 |
| 7308934 | Fracturing isolation sleeve An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the... | 12/18/2007 |
| 7290612 | Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore The present invention is directed to an apparatus and method for reverse circulation cementing a casing in an open-hole wellbore. The apparatus includes a surface pack-off device, which has a housing defined by an upper section and lower section. A load bearing plat... | 11/06/2007 |
| 7278490 | Blast joint swivel for wellhead isolation tool and method of using same A blast joint swivel for use in a wellhead isolation tool includes a blast joint hanger mounted to a top of the wellhead isolation tool and a swivel body rotatably received in the blast joint hanger. The swivel body threadedly connects to a blast joint, which in tur... | 10/09/2007 |
| 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 |
| 7231970 | Non-rotational casing hanger and seal assembly running tool A non-rotational casing hanger and seal assembly running tool for use in oil and gas drilling operations has a mandrel and a tool body that is carried by the mandrel. The tool body supports a plurality of latching segments for releasably connecting the tool body to ... | 06/19/2007 |
| 7204173 | Rotatable die tong jaw Power tong jaws comprising one or more dies which are rotatable. ... | 04/17/2007 |
| 7159663 | Hybrid wellhead system and method of use A hybrid wellhead system is assembled using a plurality of threaded unions, such as spanner nuts or hammer unions, for securing respective tubular heads and a flanged connection for securing a flow control stack to a top of a tubing head spool. The tubing head spool... | 01/09/2007 |
| 7137454 | Apparatus for facilitating the connection of tubulars using a top drive A method and apparatus for facilitating the connection of tubulars using a top drive which, in one aspect, the apparatus includes a body connectable to said top drive. The body includes at least one gripping element radially displaceable by hydraulic or pneumatic fl... | 11/21/2006 |
| 7124828 | Apparatus for retaining two strings of tubulars An apparatus for retaining two strings of tubulars characterized in that the apparatus comprises body parts of a device for retaining a single string of tubulars and a converting member. A device for retaining a string of tubulars, the device comprising at least one... | 10/24/2006 |
| 7111688 | Clamping well casings A clamp for clamping two concentric tubes, typically two concentric tubes in an oil or gas well. The clamp has two axially movable tapered components which can be pulled over one another in an axial direction to provide a contraction of internal diameter which grips... | 09/26/2006 |
| 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 |
| 7040410 | Adapters for double-locking casing mandrel and method of using same Adapters for connecting to a double-locking casing mandrel of an independent screwed wellhead include a lockdown flange with an adapter pin, and a retainer flange that may be used with or without the adapter pin. The retainer flange has a top surface with circumfere... | 05/09/2006 |
| 7040407 | Collet load shoulder In a subsea wellhead assembly, a collet ring assembly is used with a hanger for suspending a string of conduit in a subsea wellhead assembly. The ring assembly includes a collet that extends around an outer surface of the hanger. The collet has an upper portion that... | 05/09/2006 |
| 7040412 | Adjustable hanger system and method An adjustable hanger system and related method connect a hanger to a wellhead, with a hanger supporting a tubular secured at its lower end in the well. The wellhead includes a housing 20 having a plurality of axially spaced support grooves 23, and a ha... | 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 |
| 7013970 | Central circulation completion system A completion system comprises a christmas tree (10) mounted on a wellhead housing (11), a tubing hanger (12) landed in the tree or wellhead housing, the wellhead housing (11) being mounted on a casing string (100) and a tubing stri... | 03/21/2006 |
| 6962205 | Subsea wellhead landing clamp and slip bowl assembly A clamp for supporting a subsea wellhead and attached casing string preparatory to installing same in a well, and slip bowl assembly for running a drill pipe cementing string inside the casing string. The clamp comprises two hinged together clamp halves with a conne... | 11/08/2005 |
| 6955225 | Method of and apparatus for securing capillary tubing in a wellhead A body having a bore therethrough for insertion of capillary tubing. A first means slidably coupled into the bore of the body frictionally restrains movement of the tubing by hydraulically engaging the periphery of the tubing with an elastomeric compressible sealing... | 10/18/2005 |
| 6938696 | Backpressure adapter pin and methods of use A tubing assembly including a tubing string and tubing hanger provides a fluid passage with backpressure threads for securing a backpressure plug in a fluid-tight seal below the tubing hanger, so that the tubing hanger can be removed from the tubing string. The back... | 09/06/2005 |
| 6920925 | Wellhead isolation tool A wellhead isolation tool and a wellhead assembly incorporating such a tool are provided. The wellhead assembly has an annular assembly coupled to a well. The annular assembly may include a casing head coupled to the well and a tubing head mounted over the casing he... | 07/26/2005 |
| 6918439 | Backpressure adaptor pin and methods of use A tubing assembly including a tubing string and tubing hanger provides a fluid passage with backpressure threads for securing a backpressure plug in a fluid-tight seal below the tubing hanger, so that the tubing hanger can be removed from the tubing string. The back... | 07/19/2005 |
