Assignee: Vetco Gray Inc.

Location: Houston, TX
No. of patents: 206

Number	Title	Issue Date
8181931	Mechanically operated hydraulic valve actuator A wellhead assembly includes a valve with a valve actuator. The valve actuator linearly moves a valve stem and valve member assembly to selectively open and close the valve. The valve actuator moves the valve stem by reciprocatingly moving a piston that is attached ...	05/22/2012
8181704	Riser emergency disconnect control system An emergency riser disconnection system for disconnecting a riser from a subsea installation having disconnect actuators and a signal and power circuit for controlling the actuators. The signal and power circuit is made up of an umbilical with signal lines and hydra...	05/22/2012
8181700	System and method of displacing fluids in an annulus The method of displacing fluids in the annulus between pressurized casing strings inside an active oil or gas well by providing a controlled turndown insert and guides then inserting and retrieving a flexible hose without it folding or buckling while being pushed or...	05/22/2012
8179279	Method and device for producing hydrocarbons using wireless communication A subsea production system adapted for wireless communication so that production tree operation can be controlled locally wirelessly from a workover umbilical or remotely controlled vehicle. The production system includes a wellhead assembly and an umbilical termina...	05/15/2012
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
8167312	Metal seal adjustable casing sub An adjustable casing sub having an outer housing, an inner housing insertable into the outer housing, and a ratcheting system for coupling the inner housing within the outer housing. An annulus is between a portion of the inner and outer housing, the annulus includi...	05/01/2012
8157015	Large bore vertical tree A subsea wellhead assembly that includes a wellhead housing, a production tree, a tubing hanger adapted to land in the wellhead assembly inside the wellhead housing, and a bore formed through the production tree having an inner diameter greater than the tubing hange...	04/17/2012
8151890	System, method and apparatus for a modular production tree assembly to reduce weight during transfer of tree to rig A modular tree production tree assembly reduces the weight during transfer of the tree components from a barge to a production rig. The tree assembly includes an upper tree module, a lower tree module, and a choke bridge module. The upper tree module has a tree head...	04/10/2012
8146889	Low friction coatings for dynamically engaging load bearing surfaces A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat ring is mounted to the body at the intersection of the flow passage and the cavity, the seat ring having an engaging face. A gate in the cavity has an engaging face ...	04/03/2012
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
8141644	System, method, and apparatus for a corrosion-resistant sleeve for riser tensioner cylinder rod A riser tensioner cylinder rod incorporates a thin, corrosion-resistant alloy tube over a pre-machined steel alloy rod. The tube is swedged at one end and expanded to the inner surface of a split die. A gradual tapered surface on a stretching die provides a smooth t...	03/27/2012
8141641	Backup safety flow control system for concentric drill string A technique is presented for providing a double-barrier to formation fluids during drilling operations with a concentric drill string having an inner bore and an annulus. A primary flow control system is used to provide a first barrier to formation fluids in the inn...	03/27/2012
8136604	Wireline run fracture isolation sleeve and plug and method of operating same An isolation sleeve and plug assembly that may be used to protect a wellhead assembly from being damaged by high-pressure wellbore fracturing operations. Both the isolation sleeve and plug may be installed by the same running tool, and may be installed by lowering t...	03/20/2012
8127857	Single trip, tension set, metal-to-metal sealing, internal lockdown tubing hanger A system, apparatus, and method to apply tension to completion tubing in a wellbore. The system, apparatus, and method comprises an inner and outer tubing hanger, with the string of tubing attached to the inner tubing hanger. A running tool lands the outer tubing ha...	03/06/2012
8127853	Internal tieback for subsea well A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is ...	03/06/2012
8123438	Ram style tensioner A riser tensioner configured to apply a tension to a riser. The riser tensioner includes a frame configured to be fixedly attached to the riser; plural cylinder assemblies spaced around the riser, each cylinder assembly having a cylinder and a piston configured to s...	02/28/2012
8113287	Self sealing hydraulic coupler A hydraulic coupler for providing fluid communication between adjacent members that includes a two way check valve formed from a double headed poppet set in a hollow cylinder with corrugated bellows like walls. Contoured bores are provided in the cylinder ends and t...	02/14/2012
8101050	System, method, and apparatus for continuous electroplating of elongated workpieces A system electroplates the interior or exterior cylindrical surfaces of an elongated workpiece, such as a pipe or shaft. The workpiece is continuously electroplated with metallic solutions via a traveling anode that gradually plates along the axial length of the wor...	01/24/2012
8096560	Metal-to-metal seal for smooth bore A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact wit...	01/17/2012
8087181	Valve body seat pocket inspection tool A technique is provided for detecting the surface profile of a seat pocket of a gate valve. An inspection tool is used to detect data at a plurality of points around the bore of the valve. The inspection tool has a sensor that is moveable between a retracted positio...	01/03/2012
8080157	Downhole gravitational water separator A gravity water separation system that may be integrated within a well completion. A diverted flowpath is provided for produced hydrocarbons, external to the completion tubing. As produced hydrocarbons travel through the diverted flowpath, they pass through separati...	12/20/2011
8079623	Threaded pipe connector A riser connector uses a box and upset pin connector threadform design having S-shaped load flanks that provide a variable load angles depending on the radial position along the engaged teeth. This design promotes a load path that changes with position along the axi...	12/20/2011
8074724	Bit-run nominal seat protector and method of operating same A drilling system employs a set of bushings that protect seats used for casing hangers. The system includes one or more seat protectors that attach to a running tool. The running tool is lowered down the wellbore with the seat protectors attached and deposits a bush...	12/13/2011
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
8074720	Riser lifecycle management system, program product, and related methods A system, program product, and method for monitoring and managing a plurality of marine riser assets is provided. The system can include one or more floating vessels each carrying a shipboard computer, a plurality of riser assets to be tracked and monitored, a riser...	12/13/2011
8070131	Recessed cutting edge for wire cutting gate valves A gate valve having a body, a chamber housed in the body, a passage through the body that intersects the chamber, a gate for selectively opening and closing the valve, and a cutting edge on the gate. The cutting edge can sever any lines that may be in the valve and ...	12/06/2011
8066064	Well assembly having a casing hanger supported by a load member actuated by a retractable member disposed in the wellhead A wellhead system comprising a high pressure housing having a retractable ring and a casing hanger having an activation ring configured to be engaged by the retractable ring when the casing hanger is lowered into the high pressure housing. An expandable load member ...	11/29/2011
8061428	Non-orientated tubing hanger with full bore tree head A subsea wellhead assembly includes a wellhead housing, a production tree, a tubing hanger adapted to land in the wellhead assembly inside the wellhead housing without a need for angular orientation, a bridge member on the tubing hanger in the production tree, a por...	11/22/2011
8027856	Automated notification of part revisions for outside suppliers Revision of a part specification document, such as a drawing, a part specification, or a bill of materials, prompts execution of an automated notification process. A unique part number associated with the revised part specification document is employed in searching ...	09/27/2011
8011858	Ram style tensioner with fixed conductor and floating frame A riser tensioner for an offshore floating platform has a frame stationarily mounted to the upper portion of the riser. Pistons and cylinders are spaced circumferentially around the riser and connected between the frame and the floating platform. A tubular guide mem...	09/06/2011
8011436	Through riser installation of tree block A subsea well assembly has a tubing hanger that lands and seals in a wellhead housing. A tree block is lowered through the drilling riser into engagement with the tubing hanger. The tree block has a lower portion that inserts and latches into the bore of the wellhea...	09/06/2011
8006764	Adjustable threaded hanger An adjustable hanger for retaining in tension casing and tubing extending between a subsea wellhead and a surface wellhead on a platform. ...	08/30/2011
7975983	System, method and apparatus for split gate valve with mechanically isolated seal surfaces A split gate is movably mounted within a valve body along a valve axis between valve seats. The split gate has gates, each extending between one of the valve seats and the other gate. In an open position, gate holes register with a fluid aperture and the valve seats...	07/12/2011
7975771	Method for running casing while drilling system At least a portion of a subsea well is drilled casing-while-drilling techniques. A landing shoulder is formed within an outer string of a casing. The outer string of casing is secured to an outer wellhead housing above the landing shoulder and lowered into the wellb...	07/12/2011
7975768	Riser joint coupling 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...	07/12/2011
7963337	Composite enhanced metallic drilling riser system An offshore composite enhanced metallic drilling riser is equipped to enable preloading of the composite shell and the metallic riser. A riser has steel end connectors and a continuous metallic inner liner, encased in a composite shell. A segmented hyperboloid shape...	06/21/2011
7963336	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...	06/21/2011
7913767	System and method for connecting tubular members A technique for securing drilling riser joints in a drilling riser string is presented. The drilling riser joints have a tubular housing that has a box configuration on one end and a pin configuration on the other end. The drilling riser string is assembled by conne...	03/29/2011
7909107	High capacity running tool and method of setting a packoff seal A high capacity running tool sets and internally tests a casing hanger packoff during the same trip. The running tool has a stem and a body. The body is secured by threads to the stem of the running tool so that rotation of the stem relative to the body will cause t...	03/22/2011
7900706	Shoulder ring set on casing hanger trip A wellhead housing has a bore with a support shoulder, a ramp surface extending upward and outward from the support shoulder, and a recess extending upward from the ramp. A split, resilient load ring is carried in an initial position in the recess. A retractable and...	03/08/2011

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Assignee: Vetco Gray Inc.