Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8186441 | Modular backup fluid supply system A system and method to allow backup or alternate fluid flow routes around malfunctioning components using removable, modular component sets. In one exemplary embodiment, an ROV establishes a backup hydraulic flow to a BOP function by attaching one end of a hose to a... | 05/29/2012 |
| 8186440 | Fluid injection device The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an int... | 05/29/2012 |
| 8181705 | Fluid injection device The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an int... | 05/22/2012 |
| 8171996 | Wellhead system having a tubular hanger securable to wellhead and method of operation A technique is provided for installing a tubular hanger and tubular hanger seal in a wellhead. The technique comprises installing the tubular hanger with a setting tool. The tubular hanger may comprise a locking ring that is driven outward into engagement with a pro... | 05/08/2012 |
| 8146667 | Dual gradient pipeline evacuation method The method of removing a first liquid from a subsea pipeline which has a central portion lower than each of the ends of the subsea pipeline by pumping a second lower density fluid into the pipeline and the either removing the second lower density fluid by either dis... | 04/03/2012 |
| 8066076 | Connection system for subsea flow interface equipment A connection system for connecting flow interface equipment to a subsea manifold is disclosed. The connection system relates particularly to a connection apparatus adapted to land a conduit means on a subsea manifold in a first stage of the connection and to connect... | 11/29/2011 |
| 8066075 | Completion suspension valve system A completion suspension valve system is described which allows a well to be suspended and desuspended remotely without a dual bore riser to the surface. This is achieved by incorporating a remotely actuatable valve into the production bore of a tubing hanger. The va... | 11/29/2011 |
| 8002041 | Accumulator for subsea equipment Pressure-balanced accumulator apparatus for use in subsea operations is disclosed which comprises a housing and an accumulator within the housing at the first end of the housing. The accumulator has first and second chambers that are hermetically sealed from one ano... | 08/23/2011 |
| 7918283 | Method and apparatus for a cold flow subsea hydrocarbon production system A system for assuring subsea hydrocarbon production flow in pipelines by chilling the hydrocarbon production flow in a heat exchanger and causing solids to form, periodically removing deposits and placing them in a slurry utilizing a closed loop pig launching and re... | 04/05/2011 |
| 7854264 | Volumetric compensating annular bellows Embodiments of the present invention relate to a volumetric compensating annular bellows used to compensate two fluid volumes by an annular displacement. This is achieved using a bellows welded on to a tube with a varying shape radius. A bellows is arranged within t... | 12/21/2010 |
| 7770650 | Integral orientation system for horizontal tree tubing hanger A horizontal tree has a lateral passage extending from its bore. A tubing hanger having a lateral passage lands in the bore of the tree. The tubing hanger has an orientation guide mounted to it. A retractable pin is mounted in the sidewall of the tree. The orientati... | 08/10/2010 |
| 7757772 | Modular backup fluid supply system A system and method to allow backup or alternate fluid flow routes around malfunctioning components using removable, modular component sets. In one exemplary embodiment, an ROV establishes a backup hydraulic flow to a BOP function by attaching one end of a hose to a... | 07/20/2010 |
| 7726405 | High pressure large bore utility line connector assembly A utility line connector assembly having a male stab having a central bore with a port that communicates with a second bore in a receptacle where the stab is fixedly inserted into a receiving female opening in the receptacle, the receptacle has an L shaped opening w... | 06/01/2010 |
| 7650944 | Vessel for well intervention In one aspect, a method and apparatus for intervening in an offshore pipeline while diverting fluid flow to a storage site is provided, so that production through the offshore pipeline may continue while conducting a pipeline intervention operation. An offshore vess... | 01/26/2010 |
| 7600569 | Method for installing and connecting a sub-sea riser A method and a device for installing a sub-sea riser for an offshore operation, between a base installation disposed on the sea bed and a sea installation protruding above the base installation. The sub-sea riser is provided with a first end and a second end. The me... | 10/13/2009 |
| 7565931 | Dual bore well jumper A dual bore well jumper establishing fluid communication between a subsea well and a subsea flowline. The dual bore well jumper comprises a first pipe comprising a first pipe bore and a second pipe comprising a second pipe bore, the second pipe being located within ... | 07/28/2009 |
| 7565932 | Subsea flowline jumper containing ESP A subsea production system on a sea floor has a pump flowline jumper with a straight intermediate portion and two end portions. Each end portion has a connector for ROV assisted connection between production units. A submersible pump assembly is mounted in the strai... | 07/28/2009 |
| 7549476 | Subsea wireline lubricator The present invention concerns a pressure containment device for use in a lubricator. The device includes a housing having a first main bore extending throughout its length a number of transversal bores intersecting the main bore. Pairs of opposing rams are located ... | 06/23/2009 |
| 7530398 | Method and apparatus for a cold flow subsea hydrocarbon production system A system for assuring subsea hydrocarbon production flow in pipelines by chilling the hydrocarbon production flow in a heat exchanger and causing solids to form, periodically removing deposits and placing them in a slurry utilizing a closed loop pig launching and re... | 05/12/2009 |
| 7467663 | High pressure wellhead assembly interface A wellhead assembly with high pressure interface is provided. The wellhead assembly includes a tubing spool that connects the wellhead to a BOP and a casing hanger that is landed in the wellhead and connected thereto. The wellhead assembly further includes a gasket ... | 12/23/2008 |
| 7402000 | Spool piece termination structure, a connection arrangement comprising such a termination structure and a pipeline termination A spool piece termination structure to be mounted to a spool piece so as to support a spool piece hub during the connection of the spool piece hub to a corresponding pipeline hub. The termination structure includes a clamping device for clamping together the spool p... | 07/22/2008 |
| 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 |
| 7350580 | Subsea pass thru switching system A coupling switches control fluid from a tubing hanger to a downhole completion of a subsea well. The coupling, located between a tubing hanging running tool and a downhole completion, includes a coupling body and a tubing hanger. A hydraulic poppet switches control... | 04/01/2008 |
| 7347003 | Device to measure axial displacement in a borehole A device to measure minute displacement in rocks, including anchor deployment means, anchor registration means, and frame release means. Further including anchor units comprising a fixed anchor point, a reversible anchor actuator and a deployable anchor face capable... | 03/25/2008 |
| 7337848 | Preloaded riser coupling system An offshore riser system has riser joints, each having a pin and a box. The pin has an external grooved profile that is engaged by a locking element carried by the box of another riser joint. An actuating ring engages with the locking element to move it into the loc... | 03/04/2008 |
| 7331395 | Riser make-up tool An offshore riser system has riser joints, each having a pin and a box. The pin has an external grooved profile that is engaged by a locking element carried by the box of another riser joint. An actuating ring engages with the locking element to move it into the loc... | 02/19/2008 |
| 7323147 | Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxygenates to olefins A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is r... | 01/29/2008 |
| 7318479 | Assembly for connecting a jumper to a subsea structure An assembly for connecting a jumper to a subsea structure. The assembly comprises a jumper connector attached to an end of the jumper that has a vertically disposed main body adapted for receiving a plurality of lines, which connect into a corresponding plurality of... | 01/15/2008 |
| 7314084 | Subsea pumping module system and installation method The present invention contemplates a system comprising a pumping module coupled to an intermediate flow inlet (IFI) wherein said IFI is coupled to a base structure disposed on the flow line that routes production from one or more oil wells, allowing for the quick an... | 01/01/2008 |
| 7314086 | Well operations system A wellhead has, instead of a conventional Christmas tree, a spool tree in which a tubing hanger is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the producti... | 01/01/2008 |
| 7308943 | Well operations system A wellhead has, instead of a conventional Christmas tree, a spool tree in which a tubing hanger is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the producti... | 12/18/2007 |
| 7308902 | Subsea valve assembly with replaceable fixed orifice insert The present invention is directed to an subsea valve assembly having a fixed orifice insert that can be removed and replaced using a remotely operated vehicle (ROV). The valve assembly includes a removable orifice insert holder and a threaded receptacle housing into... | 12/18/2007 |
| 7296629 | Subsea completion system, and methods of using same A subsea production system that is adapted to be coupled to a subsea wellhead and includes a tubing hanger adapted to be positioned in the wellhead. The tubing hanger has a flow opening extending therethrough and has at least one eccentrically located opening extend... | 11/20/2007 |
| 7243729 | Subsea junction plate assembly running tool and method of installation The invention relates to a running tool for subsea junction plate assembly installation. The invention further relates to a method for installing a junction plate assembly using the running tool of the present invention. ... | 07/17/2007 |
| 7240735 | Subsea wellhead assembly A subsea wellhead including a wellhead housing having a bore with a grooved profile. An upper portion of the bore has a greater diameter than a lower portion of the bore, and a central conical portion of the bore joins the upper portion of the bore and the lower por... | 07/10/2007 |
| 7240736 | Drilling and producing deep water subsea wells Subsea wells are drilled and completed with an offshore floating platform in a manner that allows simultaneous work on more than one well. A first well is drilled and casing. Then a tubing hanger is run through a drilling riser and landed in the wellhead housing. Th... | 07/10/2007 |
| 7225877 | Subsea intervention fluid transfer system A system for subsea transfer of intervention fluids to a subsea intervention apparatus, the system, in certain aspects, including a structure and a frame pivotably mounted thereto, a plurality of frame fluid conduits on the frame for conducting fluid from a connecto... | 06/05/2007 |
| 7225873 | Coiled tubing cutter A cutting module to sever a tubing in a well includes a piston and shear blade. The piston includes at least two moveable telescoping elements, which are adapted to expand the first piston from a retracted length to an expanded length. The shear blade is connected t... | 06/05/2007 |
| 7222674 | Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use A distributed function control module adapted for use in a modular blowout preventer (BOP) stack for use subsea comprises a housing, adapted to be manipulated by a remotely operated vehicle (ROV) with a stab portion adapted to be received into a BOP stack control mo... | 05/29/2007 |
| 7220067 | Cable splice protector The present invention provides a protector assembly and process for protecting a downhole connection of a line (e.g., fiber optic or electrical) from the wellbore environment. Inside the housing that provides protection from the wellbore environment is a subassembly... | 05/22/2007 |
