Assignee: Hydril Company

Location: Houston, TX
No. of patents: 109

Number	Title	Issue Date
8171613	Electrically insulated wedge thread connection An electrically-insulative threaded connection includes a pin member having a pin thread and a box member having a box thread. An insulating composite layer is disposed between the pin thread and the box thread. The insulating composite layer includes an insulating ...	05/08/2012
8029025	Single taper wedge thread connection with mid-seal A tubular connection includes a pin member and box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small ...	10/04/2011
7988205	Wedge thread with torque shoulder A threaded pipe connection includes a pin member having an external thread increasing in width in one direction, a box member having an internal thread increasing in width in an opposite direction so that complementary internal and external threads move into engagem...	08/02/2011
7942454	Threads with perturbations A threaded connection includes a pin member including a pin thread having a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank, and a box member including a box thread having a box thread crest, a box thread root, a box load flank, and a box...	05/17/2011
7850211	Wedge thread connections having a clearance gap volume A wedge-threaded tubular connection includes a pin member and a box member, wherein each of the pin and box members include an engaged thread area, and a clearance gap volume formed between corresponding roots and crests of the pin and box members and arranged along...	12/14/2010
7690696	Wedge thread with torque shoulder A threaded pipe connection including a pin member having an external thread increasing in width in one direction, the external thread including load and stab flanks, a box member having an internal thread increasing in width in the other direction so that complement...	04/06/2010
7475917	Threaded connection with variable flank angles A threaded connection for a conduit includes a pin member and a box member. The pin member includes a pin thread having a pin thread crest, a pin thread root, a pin load flank oriented at a pin load flank angle, and a pin stab flank oriented at a pin stab flank angl...	01/13/2009
7469938	Threaded connection especially for radically plastically expandable conduit A threaded connection includes a male member having threads thereon defining a load flank lead and a stab flank lead. The threaded connection also includes a female member having threads thereon adapted to mate with threads on the male member, wherein the threads on...	12/30/2008
7458616	Threads with perturbations A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank. The box member has ...	12/02/2008
7383888	Expansion pig A tool for radially expanding casing having a tool body that includes a proximal end, a distal end, and an outer surface. The tool includes at least one hydraulic channel disposed axially. The at least one hydraulic channel transmits hydraulic pressure from behind t...	06/10/2008
7380840	Expandable threaded connection Tubular connections and methods of designing tubular connections having selected root/crest clearance when the box member and pin member are made-up. When the tubular connection is radially expanded, a thread seal is formed over at least part of the tubular connecti...	06/03/2008
7281586	Mounts for blowout preventer bonnets A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the bo...	10/16/2007
7191841	Expansion pig A tool for radially expanding casing having a tool body that includes a proximal end, a distal end, and an outer surface. The tool includes at least one hydraulic channel disposed axially. The at least one hydraulic channel transmits hydraulic pressure from behind t...	03/20/2007
7156676	Electrical contractors embedded in threaded connections Tubulars for transmitting data in a wellbore and threaded connections having electrical contactors embedded therein. The threaded connection includes a first contactor embedded in electrically insulating material within a first slot formed in the pin thread. A secon...	01/02/2007
7121348	Mounts for blowout preventer bonnets A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the bo...	10/17/2006
7114751	Composite liner for oilfield tubular goods A composite lined tube is disclosed having end couplings. The tube includes a resin impregnated fiber preform pressed progressively along an inner wall of the tube. The tube may further include an inflatable bladder inserted into the tube. The bladder is adapted to ...	10/03/2006
7096960	Mounts for blowout preventer bonnets A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the bo...	08/29/2006
7014212	Tubular joint wear indicator A threaded pipe connection includes a box member, a pin member and a wear indicator for the connection. The pin member has internal threads and the box member has external threads. The internal threads of the box member each increase in width in one direction, while...	03/21/2006
6976711	Threaded connection especially for radially plastically expandable conduit A threaded connection for a conduit is disclosed. The connection includes a male member having threads on it defining a load flank lead, a stab flank lead and a nominal lead. A female member has threads thereon adapted to mate with the threads on the male member. Th...	12/20/2005
6904982	Subsea mud pump and control system A sub-sea mud pump system includes a plurality of pump units, and each pumping unit includes a plurality of pumping elements. Each pumping element includes a pressure vessel with a first and a second chamber, a separating member between the first and second chambers...	06/14/2005
6626471	Double flex seal for tubular connection A threaded tubular connection has a box member including an internal thread, a pin member including an external thread engageable with the internal thread of the box member, and a protruding sealing surface disposed in the box member such that the pin mem...	09/30/2003
6622797	Apparatus and method to expand casing A tool for radially plastically expanding a pipe having a threaded connection therein, that includes a first section. The first section has an increasing diameter and increasing cone angle along a direction of travel through the pipe. The first section in...	09/23/2003
6620475	Structure for wound fiber reinforced plastic tubing and method for making A fiber reinforced plastic article is disclosed which include a liner, at least one single material fiber layer wound on the liner, and at least one composite fiber layer wound on the single material fiber layer. The at least one single material fiber lay...	09/16/2003
6607220	Radially expandable tubular connection A radially expandable tubular connection including a box member having an internal thread and a first seal surface and a pin member having an external thread and a second seal surface. The external thread threadedly engages the internal thread and the fir...	08/19/2003
6596121	Method of making composite liner for oilfield tubular goods A method for making a composite lined tube is disclosed, wherein the tube has end couplings on it. The method includes pressing a resin impregnated fiber preform progressively along an inner wall of the tube. In one embodiment, the method includes inserti...	07/22/2003
6554247	Quick release blowout preventer bonnet A bonnet lock mechanism for a blowout preventer that includes a radial lock. A radial lock displacement device is coupled to at least one lock actuator. The radial lock displacement device is adapted to radially displace the radial lock to lock a bonnet t...	04/29/2003
6554287	Collapsing type seal for expandable tubular connections A seal for a radially expansible conduit connection is disclosed. The seal includes a first sealing surface disposed proximal to an end of a male portion of the connection and a corresponding second sealing surface disposed proximal to an end of a female ...	04/29/2003
6530607	Two-step threaded connector having differential thread width A threaded connector includes a pin member having a large thread step and a small thread step. The pin member has a first sealing surface between the steps. Threads on the steps of the pin member each have load flanks and stab flanks. The connector includ...	03/11/2003
6510897	Rotational mounts for blowout preventer bonnets A rotatable mount for a blowout preventer bonnet. A slide mounting bar is slidably couples to a body of the blowout preventer. The slide mounting bar is adapted to move along an axis of a side opening of the body of the blowout preventer. A swivel is coup...	01/28/2003
6505691	Subsea mud pump and control system The invention is a subsea pump that includes pumping elements, each pumping element including a pressure vessel with a first and a second chamber therein and a separating member disposed between the first and second chambers. The first and second chambers...	01/14/2003
6419277	Conduit section having threaded section connectors and external conduits attached thereto A marine riser segment which includes a riser joint having a threaded coupling at each end and flanges disposed on an exterior of the joint. Each of the flanges is coupled to the joint by a bearing. The flanges including openings therein for auxiliary con...	07/16/2002
6387179	Method and device for impregnating fiber bundles with resin Resin impregnation of fiber bundles for use in making a composite material is described. The impregnated fiber bundles are suitable for use as a prepreg tape or for inline use in extrusion, pultrusion and filament winding operations. The improvements of t...	05/14/2002
6361080	Method for attaching an ANSI stub-end flanged connector to a composite tubular member A method is disclosed for coupling a stub end flanged connector to a fiber reinforced plastic pipe. The method includes tapering an end of the fiber reinforced plastic pipe on the outside surface of its fiber overwrap. An inside surface of a stub end conn...	03/26/2002
6352120	Packer insert for sealing on multiple items in the wellbore A multiple item sealing packing insert for use with oil field service products in a wellbore has a first member comprising a composite material having an elastomer and a structural support material and a second member comprising a composite material havin...	03/05/2002
6338385	Retrievable downhole adjustable choke A downhole adjustable choke includes a choke body which is adapted to be lowered into a borehole. The choke body has a bore and an orifice connected to the bore. A sleeve is disposed inside the bore of the choke body. The sleeve has an orifice which is al...	01/15/2002
6325159	Offshore drilling system A system for drilling a subsea well from a rig through a subsea wellhead below the rig includes a wellhead stack which is mounted on the subsea wellhead. The wellhead stack includes at least a subsea blowout preventer stack and a subsea diverter. A drill ...	12/04/2001
6302128	Bi-directional rotary output actuator A rotary valve is opened and closed with a combination incremental rachet mechanism and a continuous motor mechanism. Two separate control circuits are used for opening and closing the valve. When the opening or closing circuit is energized alone, the val...	10/16/2001
6270127	Two-step, low torque wedge thread for tubular connector A threaded pipe connection is disclosed that includes a box member and a pin member. The box member has two wedge thread steps each with a tapered, internal, generally dovetail-shaped wedge thread having stab flanks, load flanks, roots, and crests. The pi...	08/07/2001
6230824	Rotating subsea diverter A rotating diverter for isolating fluid in a well from other fluid above the well is provided. The rotating diverter includes a housing body which has a bore running through it. A retrievable spindle assembly which includes a spindle and a bearing assembl...	05/15/2001
6206436	Differential wedge thread for threaded connector In a threaded connector, a box member has at least two tapered, internal, generally dovetail-shaped threads. The internal threads each having stab flanks, load flanks, roots, crests and a wedge ratio and increasing in width in one direction. A pin member ...	03/27/2001

«First «Previous1 2 3 Next»Last»

PatentStorm

Celebrity Inventors

PatentStorm News

Assignee: Hydril Company