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Pipe Joints Or Couplings > Particular Interface > Tapered > Discontinuous Interface Surface > Threaded (e.g., Drill Pipe Type) Threaded (e.g., Drill Pipe Type)Threaded (e.g., Drill Pipe Type) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/17/08 - 20080012320 - Tubing connection arrangement A tubing connection arrangement and a method used for coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement comprising a first expandable tubing section defining a male portion; a second expandable tubing section defining a female portion, the first and second expandable tubing sections ... 01/10/08 - 20080007059 - Submersible pump drop pipe and casing assembly connection and method of manufacture A submersible pump drop pipe and casing assembly and method of manufacture is disclosed. The drop pipe/casing has a seated connector and base. The seated connector has a first and second sections, the first section being used to align and direct the base into the seated connector and to provide ... 11/01/07 - 20070252388 - Pipe joint A pipe joint has a joint main body, a union nut connected to the joint main body, and a lock ring. The lock ring has a tubular wall, and a first axial end and a second axial end of the tubular wall are deformable by inner walls of tapered hole ... 10/04/07 - 20070228729 - Tubular goods with threaded integral joint connections Oil country tubular goods and other types of tubular members are provided with integral joints having threaded connections. The integral joints may be flush type connections or swage type connections. The tubular members may be formed using electric resistant welding technology satisfactory for radial expansion within a wellbore. The threaded ... 09/20/07 - 20070216160 - Threads with perturbations A threaded connection includes a pin member having a pin thread having a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank, a box member having a box thread having a box thread crest, a box thread root, a box load flank, and ... 08/30/07 - 20070200345 - Sucker rod connection with improved fatigue resistance, formed by applying diametrical interference to reduce axial interference Sucker rod connections are provided, preferably for rods with ⅝″ to 1⅛″ diameter, with improved fatigue resistance, formed by applying diametrical interference to prevent disengagement, reducing axial interference between the pin shoulder of a male member and the box shoulder of a female member. The connection may comprise a tapered ... 08/16/07 - 20070187951 - Threaded tubular connection which is resistant to bending stresses A threaded tubular connection includes a male tubular element including a male threaded portion and a female tubular element including a female threaded portion that cooperates by screwing with the male threaded portion. The threaded connection includes at least one transfer zone that can transfer bending loads between the elements ... 08/02/07 - 20070176422 - Method of assembling two hermetic threaded tubular joints comprising a local and initial added thickness, by means of plastic expansion The invention relates to an assembly comprising two symmetrically-disposed expandable threaded tubular joints, each of said joints consisting of: (i) a male tubular element (EM1, EM2) which is placed at one end of a tube (T1, T2) and which is equipped with (a) a male thread (FM), (b) a first ... 07/19/07 - 20070164565 - Energizing seal for expandable connections The present invention generally provides a tubular configured to mate with a second tubular so that sealing integrity is maintained between the tubulars before, during, and after expansion of the tubulars. In one embodiment, a connector for connecting tubulars is provided. The connector includes a pin portion; a box portion, ... 06/28/07 - 20070145744 - Electrical connector and electrical plug and socket connection An electrical connector connects to a mating connector by a rotatable union nut that is axially displaceable on a contact carrier with a sealing element therebetween. Damage to the sealing element is prevented by a stop that limits the maximum path by which the union nut can be screwed onto ... 06/14/07 - 20070132237 - Helical groove for a tubular connection A tubular connection and methods of manufacturing a box member. The tubular connection includes a box member that includes an internal thread and a pin member that includes an external thread. The external thread is adapted to threadedly engage the internal thread. A substantially helical groove is formed on an ... 06/14/07 - 20070132236 - Method of producing a hermetic tubular joint comprising local and initial added thickness(es), by means of plastic expansion The invention relates to an expandable tubular joint comprising: (i) a male tubular element (EM) which is equipped with a male thread (FM), a first annular lip (L1) having a first axially abutting surface (SB1), a first inner surface (SI1) and a first outer surface (SE1), and a second abutting ... 05/31/07 - 20070120364 - Subsurface drill string A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male ... 03/29/07 - 20070069517 - Threaded pipe and pipe joint and method of use A threaded pipe joint has a reduced overall diameter at the joint by controlling the thickness of both the box end and pin end. Each of the box and pin ends have defined cross sectional wall thicknesses Sc and Sp1, respectively. Each of Sc and Sp1 are sized as a ... 02/15/07 - 20070035131 - Expandable tubular connection A radially-expandable tubular connection comprises a radially-expandable box member and a radially expandable pin member. The box member has an internal thread, and a non-threaded internal seal surface. The pin member has an external thread for threadably engaging the internal thread of the box member, and a non-threaded external seal ... 02/15/07 - 20070035130 - Reverse sliding seal for expandable tubular connections An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a “groove” in a surface of the box member and a corresponding “rib” on the pin nose. The radial ... 02/08/07 - 20070029797 - High-strength sealed connection for expandable tubulars A radially expandable sealed tubular joint for use in oil and gas wells having a pair of radially expandable tubular elements each having threading at a free end thereof and coupled to one another to form a flush joint connection, the threading including hooked incomplete threads located at least adjacent ... 02/01/07 - 20070024053 - Mid-seal for expandable connections An expandable tubular connection includes a pin member and a 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 ... 11/30/06 - 20060267342 - Tubular connection and method A tubular connection. The tubular connection includes a first joint having outer threads and an inner bore, and a second joint having outer threads and an inner bore. The tubular connection further includes an outer nut having inner threads that cooperate with the outer threads of the first joint and ... 11/16/06 - 20060255591 - Novel treating method and design method for tubular connections A method of treating a threaded connection that includes determining a treating time sufficient to form a thickness of a hopeite coating, coating at least a portion of the threaded connection with phosphating compound for a period of time sufficient to form the thickness of the hopeite coating is described. ... 10/05/06 - 20060220382 - Wedge thread with high-angle metal seal A threaded connection includes a pin member providing a single external thread comprising a first external portion and a second external portion, a box member providing a single internal thread comprising a first internal portion and a second internal portion, and a radial metal-to-metal seal to seal between the pin ... 09/28/06 - 20060214421 - Fatigue resistant rotary shouldered connection and method Threaded connections are provided with a thread form that permits the construction of enlarged root radii between adjacent threads. Relatively coarse thread leads formed along conical surfaces with relatively extended tapers cooperate with relatively tall thread heights and an enlarged root radius (or radii) to produce a fatigue resistant, rotary-shouldered ... 09/07/06 - 20060197343 - Threaded joint for steel pipes A threaded joint for steel pipes comprises a pin (1) and a box (2) each having a threaded portion (3a or 3b) and an unthreaded metal-to-metal contact portion (4a or 4b) as contact surfaces which contact each other when the joint is fastened. The contact surfaces (3a and 4a and/or ... 07/20/06 - 20060157982 - Pipe connection An external pipe joint between a pin section (30) and a box section (40) is disclosed. The end of the pin and box sections have complementary screw-threaded portions, adapted to interengage along the greater part of the axial length thereof, the threads being inclined in the same direction and at ... 07/06/06 - 20060145477 - 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 a ... 07/06/06 - 20060145476 - Pseudo two-step connection A threaded connection having wedge threads, and a method of manufacturing said threaded connection. The threaded connection includes a pin member and a box member having a pin thread and a box thread, respectively. The pin thread has a pin thread crest, a pin thread root, a pin load flank, ... 06/22/06 - 20060131882 - Hang-free thread design A threaded pin and box connection having thread geometries and/or dissimilar thread fits that prevent the pin thread of a connection from hanging up in the box thread as the pin is being stabbed into or destabbed from the box. Dissimilar geometries and/or threads include dissimilar thread types, dissimilar leads, ... 06/22/06 - 20060131881 - Pre-expanded connector for expandable downhole tubulars A method and apparatus for providing an expandable threaded connection between segments of expandable tubulars. Threaded connections are machined into pre-expanded ends of tubulars. Once the threaded connections are machined into the pre-expanded ends, two joints of tubulars are connected using the threads, thus creating a pre-expanded threaded connection. After ... 06/22/06 - 20060131880 - Pre-expanded connector for expandable downhole tubulars A method and apparatus for providing an expandable threaded connection between segments of expandable tubulars. Threaded connections are machined into pre-expanded ends of tubulars. Once the threaded connections are machined into the pre-expanded ends, two joints of tubulars are connected using the threads, thus creating a pre-expanded threaded connection. After ... 06/22/06 - 20060131879 - Pre-expanded connector for expandable downhole tubulars A method and apparatus for providing an expandable threaded connection between segments of expandable tubulars. Threaded connections are machined into pre-expanded ends of tubulars. Once the threaded connections are machined into the pre-expanded ends, two joints of tubulars are connected using the threads, thus creating a pre-expanded threaded connection. After ... 06/15/06 - 20060125234 - Hollow sucker rod connection with second torque shoulder An elongated drive string assembly comprising a plurality of hollow sucker rods and a connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each hollow sucker rod ... 04/27/06 - 20060087119 - 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 connection. ... 04/06/06 - 20060071474 - Threaded connection for drill pipes A pin and box of a threaded connection are provided with interference fit metal-to-metal seals on both sides of a reverse thread section. The pin nose and box nose respectively are received in undercuts in the box shoulder and nose shoulder. The pin nose and box nose engage the respective ... 04/06/06 - 20060071473 - Helical groove for a tubular connection A tubular connection and methods of manufacturing a box member. The tubular connection includes a box member that includes an internal thread and a pin member that includes an external thread. The external thread is adapted to threadedly engage the internal thread. A substantially helical groove is formed on an ... 03/30/06 - 20060066102 - Composite drill pipe and method for forming same A composite pipe segment is formed to include tapered in wall thickness ends that are each defined by opposed frustoconical surfaces conformed for self centering receipt and intimate bonding contact within an annular space between corresponding surfaces of a coaxially nested set of metal end pieces. The distal peripheries of ... 03/23/06 - 20060061098 - Cover for expandable connections Employing a sleeve that spans the connection and a ring seal enhances the sealing integrity of expanded connections. The expansion of the connection brings the connection to the sleeve and engages the seal with the sleeve. The seal can be on the connection or the sleeve and the assemblies can ... 01/12/06 - 20060006648 - Tubular goods with threaded integral joint connections Oil country tubular goods and other types of tubular members are provided with integral joints having threaded connections. The integral joints may be flush type connections or swage type connections. The tubular members may be formed using electric resistant welding technology satisfactory for radial expansion within a wellbore. The threaded ... 01/12/06 - 20060006647 - Hybrid threaded connection for expandable tubulars An expandable threaded connection between segments of expandable tubulars that allows the threaded tubular connection to withstand the stresses and deformations imposed on the connection by the tubular expansion process is disclosed. The present invention is a unique hybrid threaded connection that utilizes two complementary thread segments to form the ... 12/29/05 - 20050285397 - Electrical conduit union and conduit system An electrical conduit piece of the invention has two external threaded regions, one threaded region having a left hand threaded region and one having a right hand threaded region. This conduit piece is particularly well adapted to be used in conventional conduit systems by coupling to conventional conduit pieces through ... 11/10/05 - 20050248154 - Threaded connection for oil field applications An interconnection for oil field tubular goods operates in a self sealing manner in response to internal pressures which might otherwise cause leakage through couplings or joints. Each coupling sleeve includes an interior fulcrum ring fitted between the nose ends of the tubing or casing, and centrally engaging a fulcrum ... 11/10/05 - 20050248153 - Threaded joint for steel pipes A threaded joint for steel pipes comprises a pin (1) and a box (2). The pin has male thread (11), a sealing surface (13), and a shoulder surface (14) located on the end face of the pin. Correspondingly, the box has female thread (21), a sealing surface (23), and a ... 11/03/05 - 20050242583 - Coupling for drilling-with-casing operations A modified API Buttress threaded casing connection is disclosed for use in drilling oil and gas wells in lieu of using conventional drill pipe. The coupling threads only are multiple tapered yet can be mated with standard API Buttress pin threads having a single taper. The coupling is also shortened ... 10/27/05 - 20050236834 - Expandable tubular connection An expandable tubular pin and box connection is described having a feature of trapping the pin nose after preferably deforming the pin nose plastically in an outward direction away from the longitudinal axis of the connection. The box end is held away from the pin wall before expansion so that ... 10/13/05 - 20050225083 - Pipe system and method for its manufacture A pipe system for transport of corrosive fluids, such as crude oil or natural gas, having a corrosion-prone tubular member, which is coated with an inner corrosion-resistant lining. The tubular member and inner lining provide a flat end in a plane orthogonal to a longitudinal axis of the tubular member, ... 09/29/05 - 20050212290 - Threaded tubular joint comprising sealing surfaces A tubular joint for hydrocarbon wells including a male tubular element and a female tubular element including respective sealing faces configured to come into mutual sealing-tight contact after sliding over one another during assembly and/or during radial expansion of the joint. At least one of the sealing faces is equipped ... 09/15/05 - 20050200127 - Joining tubular members An apparatus includes a first connector and a member. The first connector connects a first tubing section and a second tubing section together. The member is adapted to be moved from a retracted to an extended position to form a sealed connection between a first tubular member that is connected ... ### FreshPatents.com Support - Terms & Conditions |