Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8186445 | System, method and apparatus for thermal wellhead having high power cable for in-situ upgrading processing A thermal wellhead having a high voltage cable for in-situ upgrading and processing unconventional oil reservoirs is disclosed. An electrical cable has a power umbilical with an electrical heater on a lower end and an electrical connector opposite the heater. An upp... | 05/29/2012 |
| 8151892 | Wellhead conversion system and method Methods and systems relating to subsea wellhead orientation are disclosed. A system may include a wellhead with an orientation key on an outer surface and an opening on an inner surface and a Christmas tree attached to a guide tube having an orientation profile whic... | 04/10/2012 |
| 8146670 | Bi-directional annulus seal A wellhead seal assembly forms a metal-to-metal seal between inner and outer wellhead members. A metal seal ring has inner and outer walls separated by a slot. A lock ring has grooves for locking the inner wellhead member to the outer wellhead member during installa... | 04/03/2012 |
| 8136602 | Method and apparatus for sealing and venting pressurized casings of gas wells Disclosed apparatus and methods permit well-site operators to retrofit existing wells in order to comply with local regulations that restrict the escape of annular natural gas from hydrocarbon wells. Such allows sealing around an exterior of surface and concentric p... | 03/20/2012 |
| 8113291 | Leak detection method for a rotating control head bearing assembly and its latch assembly using a comparator A leak detection method uses a comparator to compare fluid values in and from the latch assembly of the latch system for an oilfield device and/or in and from the bearing assembly of a rotating control head. ... | 02/14/2012 |
| 8109337 | Alignment of BOP stack to facilitate use of a rotating control device An alignment system can include at least one alignment device positioned between two flanges, the alignment device having a greater thickness on one side of the alignment device than on an opposite side of the alignment device. A method of producing a relative angul... | 02/07/2012 |
| 8100185 | Multi-lock adapters for independent screwed wellheads and methods of using same A multi-lock adapter used to inject high-pressure well stimulation fluids through an independent screwed wellhead includes an adapter pin having a central passageway with an internal diameter at least as large as a passageway through the wellhead. A lockdown flange ... | 01/24/2012 |
| 8082997 | Manipulatable spider components adapted for cooperation with a vertically reciprocating control line guide A method and apparatus are provided for installing control lines and pipe into a well. The pipe-holding spider that is normally mounted on the rig floor is adapted for easy disassembly and reassembly when the pipe slips within the spider are not engaged with the out... | 12/27/2011 |
| 8074722 | Method for securing a damaged wellhead A technique for securing a subsea well that has had some of its components damaged as a result of a storm or other catastrophic event. The techniques utilizes a casing head assembly that may secured to the casing of the damaged well by tightening a plurality of set ... | 12/13/2011 |
| 8028755 | Quick lock wireline valve/blow-out preventor and methods for making and using same A blow out preventor (BOP) apparatus is disclosed including a quick connection system. The quick connection system comprises at least one actuator receiving aperture including at least one female connector having a female engaging profile and at least actuator cylin... | 10/04/2011 |
| 8002043 | Slotted thread protection device A thread protection member for protecting threads in a threaded joint includes a body formed of a material selected to reduce damage to the threads during a make-up of the threaded joint and a discontinuity reducing remaining clamping forces and thus allowing the bo... | 08/23/2011 |
| 7950466 | Wellhead system and connector for wellheads A wellhead system, connector, and method of assembling a wellhead system. The connector includes a member having a set of left-hand threads and a set of right-hand threads on its interior surface. The connector provides a quick connection to threads on wellhead comp... | 05/31/2011 |
| 7921923 | Casing mandrel for facilitating well completion, re-completion or workover A casing mandrel for an independent screwed wellhead includes a seal bore for receiving a fixed-point packoff connected to a high-pressure mandrel of a pressure isolation tool, and a pin thread adapted for engagement with a box thread of a tubing head supported by t... | 04/12/2011 |
| 7909105 | Independent wellhead drilling adapter An assembly for connecting a drilling adapter to a wellhead comprising external threads on an end portion thereof. ... | 03/22/2011 |
| 7905293 | 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... | 03/15/2011 |
| 7896083 | Pivoted rail-based assembly and transport system for well-head equipment A stable vertical lift structure that raises pre-assembled equipment with flexibility in the positioning in relation to the well head location. The invention includes pre-assembled drilling and well-head equipment, such as a blow-out preventer and a stripper assembl... | 03/01/2011 |
| 7878254 | Systems, apparatus, and methods for autonomous tripping of well pipes A robotic system coupled to a racking platform of an oil well service or drilling rig comprising a base coupled to the racking platform at a fixed location, a mast pivotally coupled to the base by a mast pivot joint allowing rotation of the mast about a mast axis, a... | 02/01/2011 |
| 7874369 | Progressive cavity pump (PCP) drive head stuffing box with split seal The present invention relates to a split seal for a progressive cavity pump (PCP) drive head stuffing box. In one embodiment, a mechanical seal assembly for a pump is provided. The mechanical seal assembly includes a seal housing; first and second semi-annular mecha... | 01/25/2011 |
| 7866403 | Work string controller Well bore servicing equipment is provided. The well bore servicing equipment comprises a first manipulator to grip a well bore work string, to raise the work string, and to lower the work string. The well bore servicing equipment further comprises a controller to re... | 01/11/2011 |
| 7857062 | Configurable wellhead system with permanent fracturing spool and method of use A configurable wellhead system is used to efficiently accomplish well completion, re-completion or workover. The configurable wellhead system includes a permanent fracturing spool that is mounted to a casing head of the well and provides a high pressure seal around ... | 12/28/2010 |
| 7854265 | Pipe gripping assembly with power screw actuator and method of gripping pipe on a rig A pipe gripping assembly having a quill, an actuator and a drive assembly mounts to a top drive of a drilling rig. The quill is connected to a mandrel in the drive assembly. The drive assembly has a tapered mandrel and a set of slips that move along the taper into a... | 12/21/2010 |
| 7841413 | Pre-made up side entry sub apparatus and method For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external ... | 11/30/2010 |
| 7798237 | Enclosed coiled tubing rig An enclosed coiled tubing apparatus which includes a mobile trailer and a coiled tubing unit releasable coupled thereto, and a enclosure to maintain an adequate temperature, where the coiled tubing unit includes a coiled tubing injector postionally fixed relative to... | 09/21/2010 |
| 7789161 | Apparatus for interconnecting and sealing between fixed and rotating conduits and methods of installing same A seal assembly, for sealing between a stationary conduit and a rotating conduit, comprises an upper gland assembly, a washpipe, and a lower gland assembly. The upper gland assembly is operable to engage the stationary conduit. A washpipe partially disposed within t... | 09/07/2010 |
| 7779922 | Breakout device with support structure A method and apparatus for supporting a tubular breakout device in a position. An embodiment of the device comprises a first channel in the inside face of the device for receiving a corresponding key of a quill, a socket adjacent to the first channel, and a second c... | 08/24/2010 |
| 7779921 | Wellhead completion assembly capable of versatile arrangements A wellhead completion assembly has a head connected to surface casing. A rotatable flange or the like can be used to connect various components to a threaded end of the head. A casing hanger installs in the head, and the hanger's upper end extends beyond the head's ... | 08/24/2010 |
| 7775288 | Retrievable frac mandrel and well control stack to facilitate well completion, re-completion or workover and method of use A retrievable frac mandrel and a well control stack are used to efficiently accomplish well completion, re-completion or workover. The retrievable frac mandrel is inserted in a tubing head spool of a well to be completed, re-completed or re-worked. The well control ... | 08/17/2010 |
| 7770653 | Wellbore bypass method and apparatus A valve (136, 136′, 136″, 200) adapted to replace an existing valve of a wellhead (114). Valve (136, 136′, 136″, 200) can have similar dimensions as the existing valve it replaces to utilize existing wellhead connections. In one embodime... | 08/10/2010 |
| 7735564 | Logging tool deployment systems and methods with pressure compensation Systems and processes are provided for facilitating transfer of downhole devices through a reversibly sealable wellhead fixture capping a well under pressure, without jeopardizing operators, equipment, or the well itself. An open ended pressurizable vessel is provid... | 06/15/2010 |
| 7735565 | Dual-saddle ear support apparatus An apparatus for use in wellbore operations and a method for using it is provided. The apparatus includes a main body, two support ears spaced-apart and projecting from the main body, each having an inner ear part and an outer ear part. The inner ear part is able to... | 06/15/2010 |
| 7721808 | 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... | 05/25/2010 |
| 7708079 | Multi-lock adapters for independent screwed wellheads and methods of using same A multi-lock adapter used to inject high-pressure well stimulation fluids through an independent screwed wellhead includes an adapter pin having a central passageway with an internal diameter at least as large as a passageway through the wellhead. A lockdown flange ... | 05/04/2010 |
| 7703540 | Manipulatable spider components adapted for cooperation with a vertically reciprocating control line guide A method and apparatus are provided for installing control lines and pipe into a well. The pipe-holding spider that is normally mounted on the rig floor is adapted for easy disassembly and reassembly when the pipe slips within the spider are not engaged with the out... | 04/27/2010 |
| 7690435 | Wellhead hold-down apparatus and method An apparatus (100) and method for removably mounting a lubricator assembly (106) to a component of the wellhead stack. The component of the wellhead stack is an annular blowout preventer (BOP) (50). Tool and communication conduit lubrication and... | 04/06/2010 |
| 7647976 | System and method for steam-assisted gravity drainage (SAGD)-based heavy oil well production A system for steam-assisted gravity drainage for heavy oil production has a first well, a second well, a first platform connected to the well head of the first well so as to inject steam into the first well, and a second platform connected to the well head of the se... | 01/19/2010 |
| 7635031 | Apparatus and method for installing a sucker rod guide A fluid powered tool is disclosed for assembling a two piece guide on a sucker rod at a well site. The tool includes a table (26) laterally moveable with respect to the sucker rod and supporting a fluid powered cylinder (28), a bottom plate (42)... | 12/22/2009 |
| 7621340 | System and method for capping abandoned wells The invention describes a system for capping an abandoned well having production casing and surface casing. The system enables the effective sealing of the production casing volume from the surface casing volume such that any gases leaking from either volume can be ... | 11/24/2009 |
| 7604058 | Casing mandrel for facilitating well completion, re-completion or workover A casing mandrel for an independent screwed wellhead includes a seal bore for receiving a fixed-point packoff connected to a high-pressure mandrel of a pressure isolation tool, and a pin thread adapted for engagement with a box thread of a tubing head supported by t... | 10/20/2009 |
| 7600571 | Method and apparatus for re-entering an abandoned well A reentry apparatus for installation on an abandoned well with a surface casing and a production casing inside and below the top end of the surface casing. A production plate seals the production casing. The apparatus includes a drill guide tube with a bottom end at... | 10/13/2009 |
| 7578351 | Configurable wellhead system with permanent fracturing spool and method of use A configurable wellhead system is used to efficiently accomplish well completion, re-completion or workover. The configurable wellhead system includes a permanent fracturing spool that is mounted to a casing head of the well and provides a high pressure seal around ... | 08/25/2009 |
