VALLOUREC MANNESMANN OIL & GAS FRANCE Patent applications |
Patent application number | Title | Published |
20140054891 | COUPLING FOR CONNECTING TUBULAR ELEMENTS FOR BOTTOM-HOLE ASSEMBLIES - A coupling including a tubular body with two ends of the body each including a portion of internal threading for joining to a tubular element, and a central portion separating the two ends each including a portion of threading and having a wall thickness greater than the wall thickness of the ends of the body. The coupling includes an extension segment that extends from one of the ends of the tubular body, after the portion of internal threading, the extension segment having same outside diameter as that of the tubular body and an inside diameter greater than or equal to that of the portion of internal threading. Moreover, the extension segment includes a housing, including an opening onto an external surface of the coupling, in which an electronically responsive identification tag is housed. | 02-27-2014 |
20130333790 | PROCESS FOR COATING A THREADED TUBULAR COMPONENT, THREADED TUBULAR COMPONENT AND RESULTING CONNECTION - The invention concerns a threaded tubular component for drilling or working hydrocarbon wells, said tubular component having at one of its ends ( | 12-19-2013 |
20130320665 | PROCESS FOR COATING A THREADED TUBULAR COMPONENT, THREADED TUBULAR COMPONENT AND RESULTING CONNECTION - A threaded tubular component for drilling or working hydrocarbon wells, including at one of its ends a threaded zone produced on its outer or inner peripheral surface depending on whether the threaded end is male or female in type, in which at least a portion of the end is coated with at least one lubricating dry film including at least 65% by weight of a polyaryletherketone, and a process for depositing the film. | 12-05-2013 |
20130277963 | THREADED CONNECTION FOR DRILLING AND WORKING HYDROCARBON WELLS - A threaded connection including first and second tubular components, each including a respective male and female end, the male end includes at least one threaded zone on its external peripheral surface and ending in a terminal surface, the female end includes at least one threaded zone on its internal peripheral surface and ending in a terminal surface, the threaded zones including, over at least a portion of their length, threads each including, viewed in longitudinal section passing through the axis of the tubular component, a thread crest, a thread root, a load flank, and a stabbing flank. Profiles of the male and female load flanks, viewed in longitudinal section passing through the axis of revolution of the connection, are a continuous curve with a convex or concave form, the profile of the male flanks being complementary to that of the female flanks over at least 70% of the continuous curve. | 10-24-2013 |
20130277961 | TUBULAR THREADED JOINT HAVING IMPROVED LOW TEMPERATURE PERFORMANCE - In order to provide a tubular threaded joint constituted by a pin and a box each having threads and an unthreaded metal contact portion with excellent galling resistance and gas tightness even in extremely cold environments at −60° C. to −20° C. and rust preventing properties without using a compound grease, a thermoplastic solid lubricating coating containing low friction copolymer particles made from an acrylic-silicone copolymer and preferably further containing a solid lubricant (e.g., graphite) in a thermoplastic polymer matrix (e.g., selected from polyolefin resins and ethylene-vinyl acetate copolymer resins) is formed on the surface of the threads and unthreaded metal contact portion of a pin and/or a box. | 10-24-2013 |
20130276294 | TUBULAR THREADED JOINT HAVING IMPROVED HIGH TORQUE PERFORMANCE - A lubricating coating which can prevent the occurrence of galling even when makeup is carried out with a high torque and which has excellent rust preventing properties is formed on the contact surfaces of a pin and/or a box of a tubular threaded joint. The lubricating coating contains copolymer particles made from particles of an acrylic-silicone copolymer with an average particle diameter of 10-50 μm dispersed in a highly viscous matrix made from a mixture of a rosin-based substance selected from rosin and its derivatives, wax, a metal soap, and a basic metal salt of an aromatic organic acid (such as highly basic Ca sulfonate). | 10-24-2013 |
20130247398 | METHOD AND DEVICE FOR INSPECTING A THREADING OF A TUBULAR CONNECTION USED IN THE OIL INDUSTRY - A device, and a method of using the device, for inspecting a threading of a tubular component for exploration or working of hydrocarbon wells, the device including a threaded support that can cooperate by makeup with the threading of the tubular component, a mechanism blocking advance of the threaded support during makeup with the threading of the tubular component, a longitudinal rail fixed to the blocking mechanism and extending in a direction belonging to a plane passing through the axis of the threading of the treaded support, a mechanism inspecting treading of the tubular component, and a mechanism for longitudinal guidance to guide inspecting mechanism along the longitudinal rail. | 09-26-2013 |
20130228122 | COATING APPARATUS FOR APPLYING A UV CURABLE RESIN TO A THREADED END OF A STEEL PIPE - A coating apparatus for forming a thin UV curable resin coating on threaded end portions of a steel pipe comprises a spraying unit having at least two nozzles adapted to spray the resin coating composition by pneumatic atomization toward the threaded end portion of the steel pipe, a resin supply system for supplying the resin coating composition to each nozzle, and a first nozzle support means which supports each nozzle for movement in the axial direction of the steel pipe and in the vertical direction. The two nozzles are disposed at different positions at least in the axial direction of the steel pipe at angles which are sloped such that the sprayed streams from the nozzles approach each other. The resin supply system has a regulator for maintaining the spraying air pressure of the resin coating composition in each nozzle of the spraying unit at a predetermined respective value. | 09-05-2013 |
20130193682 | THREADED TUBULAR COMPONENT AND RESULTING CONNECTION - The invention concerns a threaded tubular component for drilling or working hydrocarbon wells, said tubular component having at one of its ends ( | 08-01-2013 |
20130152409 | METHOD AND DEVICE FOR INSPECTING A THREADING OF A TUBULAR CONNECTION USED IN THE OIL INDUSTRY - A device and method for inspecting a width of thread roots of a tubular component for exploration or working of hydrocarbon wells, the device including two arms each including a first and a second end, the first ends being connected together by a deformable portion allowing an angular displacement between the second ends, the second ends each carrying a contact element and a mechanism determining the angular displacement. | 06-20-2013 |
20130093185 | THREADED CONNECTION AND PROCESS FOR OBTAINING IT - A female component for a tubular hydrocarbon working string subjected to dynamic bending strength includes a tapered female threading cooperating with a male threading to form a rigid mutual connection of tubular elements, a free end and female sealing surface disposed between the free end and the female threading, the female sealing surface to contact in a made up condition with a male sealing surface to form a metal-metal seal, and an annular groove provided between the free end and the female sealing surface, leaving an axial distance greater than zero between the free end and a transition region outwardly of the female sealing surface, and a radial distance greater than zero between the female sealing surface and a chamfer at the free end, the groove including borders formed by the chamfer and a portion of the transition region protecting the female sealing surface prior to makeup. | 04-18-2013 |
20130075083 | THREADED END OF A TUBULAR COMPONENT FOR DRILLING OR WORKING HYDROCARBON WELLS, AND RESULTING CONNECTION - A threaded end ( | 03-28-2013 |
20130069364 | THREADED CONNECTION - A threaded connection including first and second tubular components including respective male and female ends including a distal surface and a threaded zone. The threaded zone of the male end is threaded into the threaded zone of the female end. The threaded zones include respective male and female threads having increasing width from the distal surface and including load flanks having negative angles over at least a portion of their radial dimension, and stabbing flanks, with a radial clearance in the connected state between crests of the male threads and roots of the female threads and/or between crests of the female threads and roots of the male threads, with an axial clearance in the connected state between the stabbing flanks of the male and female threads. The distal surface of the male and/or female end is brought into axial abutting contact against a corresponding abutment surface. | 03-21-2013 |
20130061988 | LOW-ALLOY STEEL HAVING A HIGH YIELD STRENGTH AND A HIGH SULPHIDE-INDUCED STRESS CRACKING RESISTANCE - A steel contains, by weight: C: 0.3% to 0.5%, Si: 0.1% to 0.5%, Mn: 1% or less, P: 0.03% or less, S: 0.005% or less, Cr: 0.3% to 1%, Mo: 1% to 2%, W: 0.3% to 1%, V: 0.03% to 0.25%, Nb: 0.01% to 0.15%, Al: 0.01% to 0.1%, the remainder of the chemical composition of the steel being constituted by Fe and impurities or residuals resulting from or necessary to steel production and casting processes. The steel can be used to produce seamless tubes for hydrocarbon wells with a yield strength after heat treatment of 862 MPa or more or even 965 MPa or more. | 03-14-2013 |
20120325361 | EXPANSIBLE THREADED JOINT AND METHOD FOR MAKING SAME - An expandable threaded connection includes: first and second tubular components including respective male and female ends including respective first and second and third and fourth threaded zones, insertion regions, first and second annular tongues, prominent abutment faces, and first and second concavities; the first and second tongues are respectively engaged in the second and first concavities in a made up condition, the abutment face of at least one tongue in contact with at least one concavity; the male end including a first surface between the first threaded zone and the first tongue, and the female end including a second surface between the third threaded zone and the second concavity; in the made up condition, the first and second surfaces define an annular space include large and small radial dimension zones which, after expansion, can form a metal-metal contact seal, the first tongue bearing on the second tongue. | 12-27-2012 |
20120312550 | SET FOR OBTAINING A THREADED CONNECTION, METHOD FOR MAKING UP AND BREAKING OUT SAID CONNECTION, AND USE OF SAID CONNECTION IN A RISER - A set for obtaining a threaded connection used in hydrocarbon wells includes a first tubular component, a second tubular component, and a third tubular component. A threaded zone provided on an internal circumferential surface of an end of the third component cooperates by makeup with one of two threaded zones of an end of the first component. A threaded zone provided on an external circumferential surface of the end of the third component cooperates by makeup with one of two threaded zones of the second component. The second and third components define an end of makeup of the threaded zones. The other threaded zone provided on the end of the first component cooperates by makeup with the other threaded zone provided on the second component. | 12-13-2012 |
20120312527 | GALLING-RESISTANT THREADED TUBULAR COMPONENT, AND PROCESS FOR COATING SAID COMPONENT - A galling-resistant threaded tubular component for drilling or operating hydrocarbon wells is described, said tubular component having at one of its ends ( | 12-13-2012 |
20120286507 | THREADED CONNECTION - A threaded connection used in exploration and operation of hydrocarbon wells includes first and second tubular components, including respective male and female ends and threaded zones. The threaded zones include respective male and female threads, the threads including a root, a crest, a stabbing flank, and a load flank. A groove is provided in the load flank of the threaded zone of the female end and/or the male end respectively, adjacent to the root, and a boss projects axially from the load flank of the threaded zone of the male end and/or respectively from the female end adjacent to the crest, the boss including a convex and concave surfaces. The boss is housed in the groove with, in a connected state, a radial clearance between the concave surface and the groove and an axial clearance between the end of the boss and the bottom of the groove. | 11-15-2012 |
20120235404 | ASSEMBLY FOR PRODUCING A THREADED CONNECTION, METHOD FOR MAKING UP AND BREAKING OUT SAID CONNECTION AND USE OF SAID CONNECTION IN A WORK OVER RISER - An assembly for producing a threaded connection, including first and second tubular components with an axis of revolution, each including at one end a male threaded zone produced on the external circumferential surface, the ends each finishing in a terminal surface forming a direct drive dog clutch device to fix the first and second tubular components in rotation, and including a third tubular component which also has an axis of revolution and includes at each end on its internal circumferential surface two female threaded zones, one of the two male threaded zones being capable of cooperating with one of the two female threaded zones while the other male threaded zone can co-operate with the other female threaded zone. The male end of the first tubular component and the corresponding female end of the third tubular component include a mechanism for free rotation. | 09-20-2012 |
20120169048 | GALLING-RESISTANT THREADED TUBULAR COMPONENT AND PROCESS FOR COATING SAID COMPONENT - A galling-resistant threaded tubular component for drilling or operating hydrocarbon wells includes at one of its ends a threaded zone produced on its external or internal peripheral surface depending on whether the threaded end is male or female in type, with at least one portion of the threaded zone being coated with a dry film with a crystalline structure with a high specific surface area principally constituted by one or more mineral salts which are not reactive towards metals, and a process for coating such a component using a dry mineral film with a crystalline structure having a high specific surface area principally constituted by one or more mineral salts which are not reactive towards metals. | 07-05-2012 |
20120112456 | PHOTOCURABLE COMPOSITION SUITABLE FOR RUST PREVENTION OF A THREADED JOINT FOR STEEL PIPES - A thin and highly transparent coating having excellent air tightness, adhesion to a substrate, lubricating properties, galling resistance, and corrosion resistance is formed on the surface of a metal substrate and particularly on the surface of a threaded joint which is used for connection of oil country tubular goods. A photocurable composition comprising (A) a photocurable (meth)acrylate resin, (B) a (meth)acrylate monomer selected from a monofunctional (meth)acrylate monomer and a difunctional (meth)acrylate monomer, (C) a trifunctional or higher multifunctional (meth)acrylate monomer, (D) a photopolymerization initiator, (E) a benzotriazole anticorrosive agent, (F) an anticorrosive pigment selected from a phosphate anticorrosive pigment and calcium ion-exchanged silica, and (G) a phosphate ester is used to form a photocured coating. | 05-10-2012 |
20120068458 | THREATED CONNECTION FOR DRILLING AND OPERATING HYDROCARBON WELLS - A set for manufacturing a threaded connection, including first and second tubular components with an axis of revolution, one of their ends including a threaded zone formed on the external or internal peripheral surface of the component depending on whether the threaded end is of male or female type, the ends finishing in a terminal surface. The threaded zones include, over at least a portion, threads including, viewed in longitudinal section passing through the axis of revolution of the tubular components, a thread crest, a thread root, a load flank, and a stabbing flank, the width of the thread crests of each tubular component reducing in the direction of the terminal surface of the tubular component under consideration, while the width of the thread roots increases, profiles of the load flanks and/or the stabbing flanks of the male and female threaded zones, viewed in longitudinal section passing through the axis of revolution of the tubular components, each having at least one identical portion such that the male and female threads can be fitted one into the other over the identical portions when the first and second tubular components are made up one into the other. The identical portions of the male and female ends are radially offset with respect to each other. | 03-22-2012 |
20120034376 | APPARATUS AND METHOD FOR APPLYING A LUBRICANT TO A THREADED PORTION OF A STEEL PIPE - An apparatus which can thinly and uniformly apply a highly viscous lubricant on the threaded portion of a threaded joint for pipes comprises a steel pipe support unit which supports a steel pipe P having a pin while rotating the pipe, a lubricant circulation system in which a lubricant having its viscosity adjusted so as to be sprayable is circulated, a metering unit having a metering pump capable of metering the lubricant, a lubricant spraying unit having spray guns for spraying lubricant through nozzles toward the pin, a spray gun support unit which supports the spray guns so as to be movable in the axial and/or radial directions of the steel pipe P; and a controlling unit which controls the rotational speed of the steel pipe P by the steel pipe support unit and the speeds of movement of the spray guns by the spray gun support unit. | 02-09-2012 |
20120025522 | TUBULAR COMPONENT FOR DRILLING AND OPERATING HYDROCARBON WELLS, AND RESULTING THREADED CONNECTION - The invention concerns a tubular component for a threaded connection, having at one of its ends ( | 02-02-2012 |
20120025518 | THREADED JOINT FOR PIPES - A solid lubricating coating formed on a contact surface of a threaded joint for pipes has a matrix of a lubricating oil-containing polymer. The lubricating oil-containing polymer has either a uniform composition or a gradient composition in which the concentration of lubricating oil decreases towards the contact surface and in which there is substantially no lubricating oil in the vicinity of the contact surface. | 02-02-2012 |
20110315276 | LOW ALLOY STEEL WITH A HIGH YIELD STRENGTH AND HIGH SULPHIDE STRESS CRACKING RESISTANCE - A steel contains, by weight: C: 0.3% to 0.5%, Si: 0.1% to 0.5%, Mn: 0.1% to 1%, P: 0.03% or less, S: 0.005% or less, Cr: 0.3% to 1.5%, Mo: 1.0% to 1.5%, Al: 0.01% to 0.1%, V: 0.03% to 0.06%, Nb: 0.04% to 0.15%, Ti: 0 to 0.015%, N: 0.01% or less, the remainder of the chemical composition of the steel being constituted by Fe and impurities or residuals resulting from or necessary to steel production and casting processes. The steel enables to produce seamless tubes with a yield strength after heat treatment of 862 MPa or more which are particularly SSC-resistant. | 12-29-2011 |
20110285124 | LUBRICATION COMPOSITION WITH AN ADAPTABLE COEFFICIENT OF FRICTION, FOR A THREADED ELEMENT OF A THREADED TUBULAR CONNECTION COMPONENT - A film-forming lubrication composition for make-up of threaded connections, intended to cover at least one threading (FE, FI) and a make-up abutment (BVM, BVF) of a threaded element (EM, EF) of a component (T | 11-24-2011 |
20110278838 | TUBULAR CONNECTION WITH SELF-LOCKING THREADING USED IN THE OIL INDUSTRY - A threaded connection including first and second tubular components, each including a respective male and female end, the male end including, on its external peripheral surface, at least one threaded zone and finishing in a terminal surface orientated radially with respect to the axis of the connection, the female end including, on its internal peripheral surface, at least one threaded zone and finishing in a terminal surface orientated radially with respect to the axis of the connection. The male threaded zone includes a first portion in which the width of the teeth, CWTp, increases from a value CWTpmin corresponding to the width of the tooth closest to the terminal surface of the male end to a value CWTpmax corresponding to the width of the tooth furthest from the terminal surface, while the width of the teeth CWTb of the female threaded zone decreases from a value CWTbmax corresponding to the width of the tooth furthest from the terminal surface of the female end to a value CWTbmin corresponding to the width of the tooth closest to the terminal surface, such that the threaded zones cooperate in accordance with self-locking make-up, wherein CWTpmin/CWTbmax≧0.2 and CWTbmin/CWTpmax≦CWTpmin/CWTbmax. | 11-17-2011 |
20110266794 | SEALED TUBULAR CONNECTION USED IN THE OIL INDUSTRY - The invention concerns a sealed threaded connection comprising a first and a second tubular component, each being provided with a respective male end ( | 11-03-2011 |
20110241340 | THREADED JOINT FOR STEEL PIPES - In a threaded joint for steel pipes comprising a pin ( | 10-06-2011 |
20110229364 | LOW ALLOY STEEL WITH A HIGH YIELD STRENGTH AND HIGH SULPHIDE STRESS CRACKING RESISTANCE - A steel contains, by weight: C: 0.2% to 0.5%, Si: 0.1% to 0.5%, Mn: 0.1% to 1%, P: 0.03% or less, S: 0.005% or less, Cr: 0.3% to 1.5%, Mo: 0.3% to 1%, Al: 0.01% to 0.1%, V: 0.1% to 0.5%, Nb: 0.01% to 0.05%, Ti: 0 to 0.01%, W: 0.3% to 1%, N: 0.01% or less, the remainder of the chemical composition of the steel being constituted by Fe and impurities or residuals resulting from or necessary to steel production and casting processes. The steel can be used to produce seamless tubes with a yield strength after heat treatment of 861 MPa or more. | 09-22-2011 |
20110203698 | DEVICE FOR PROTECTING A THREADED TUBULAR COMPONENT AND TUBULAR COMPONENT PROVIDED WITH THE DEVICE - A device for protecting the end of a tubular component, the end including a first threaded zone. The device includes a protecting end including a second threaded zone configured to cooperate with a first threaded zone of the tubular component, and a ring configured to cover a portion of the outer surface of the end of the tubular component. The ring is bound up with the protecting end such that the ring is free to turn about itself independently of the end. Such a device may find application to components used for drilling and operating hydrocarbon wells, for example in particular expandable components. | 08-25-2011 |
20110203125 | INSPECTION METHOD OF GAUGE FOR A SELF-LOCKING THREADING OF A TUBULAR CONNECTION USED IN THE OIL INDUSTRY - A method and a gauge for inspecting a self-locking threading provided close to one end of a tubular component used for exploration or operation of hydrocarbon wells, the threading including a lead with a constant width and thread root widths that increase in the direction of a distal surface of the tubular component. The gauge can be displaced in the self-locking threading to a locking position, the locking position then being marked and compared with a reference locking position. | 08-25-2011 |
20110174482 | COMPONENT FOR DRILLING AND OPERATING HYDROCARBON WELLS - A component used for drilling and operating hydrocarbon wells which is substantially tubular in form, and including a first end configured to be connected to a second end of another component also used for drilling and operating hydrocarbon wells. The first end includes a terminal portion including a first abutment surface configured to cooperate by interference with a corresponding abutment surface on the second end, and including a sealing surface configured to cooperate by interference with a corresponding sealing surface on the second end, the terminal portion being preceded by a threaded zone configured to be made up into a corresponding threaded zone of the second end. A compressible volume is provided in the thickness of the first terminal portion and partially beneath the sealing surface, to reduce radial stiffness of the terminal portion by at least 20%, while conserving at least 60% of axial stiffness. | 07-21-2011 |
20110148103 | DEVICE FOR PROTECTING A FEMALE END OF A THREADED TUBULAR CONNECTION COMPONENT, HAVING AN ANTI-UNSCREWING BRAKE - A device configured to protect a female end of a component of a threaded tubular connection for drilling and working a hydrocarbon well, including an internal threading, annular end, and internal surfaces respectively upstream and downstream of the internal threading and respectively having first and second selected orientations. The device includes a body including an external threading to cooperate with the internal threading and first and second flexible annular type sealing elements respectively upstream and downstream of the external threading to provide first and second seals respectively at the internal and end annular surfaces. The first and second sealing elements have selected third and fourth orientations at least one of which differs by at least 10° from the corresponding second or first orientation before screwing the device onto the female end, and are deformable by axial bending to acquire, by surface contact with the internal annular surface and the annular end surface, an energy at least partially opposing any unintentional unscrewing when the female end is screwed onto the body in a final position. | 06-23-2011 |
20110037255 | FATIGUE RESISTANT PIPE STRING COMPONENT - A pipe string component that connects an offshore platform with a sea bed is provided. The pipe string component includes a threaded tubular connection. The threaded tubular connection includes a male tubular element including a tapered male threading, and a female tubular element including a tapered female threading that cooperates with the male threading by makeup to produce a rigid mutual connection of the tubular elements with radial interference between radial load transfer zones of the threadings. The male and female threadings each have a load flank extending substantially perpendicularly to an axis of the male and female threadings. The radial load transfer zones are at a radial distance from envelopes of thread roots of the male and female threadings. The radial load transfer zones of the threadings comprise at least one surface substantially parallel to an axis of the connection. | 02-17-2011 |
20110025052 | Threaded Joint for Steel Pipes - A threaded joint for steel pipes for use in an oil well which has improved galling resistance and which is protected from rusting comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded metal contact portion. The contact surface of at least one of the pin and the box has a lower layer of a viscous liquid or semisolid lubricating coating comprising at least wax and a fatty acid alkaline earth metal salt and not containing a harmful heavy metal such as lead and an upper layer of a dry solid coating formed from an aqueous resin coating composition, an organic solvent type coating composition, or an ultraviolet curing coating composition. | 02-03-2011 |
20100301603 | THREADED CONNECTION COMPRISING AT LEAST ONE THREADED ELEMENT WITH AN END LIP FOR A METAL TUBE - A threaded tubular connection includes a female threaded portion at a first tubular component end and a male threaded portion at a second tubular component end, the female threaded portion including a female thread, at least one female sealing surface on its inner peripheral surface, and at least one female axial abutment surface, the male threaded portion including a male thread, at least one male sealing surface on its outer peripheral surface, at least one axial abutment surface, and a lip disposed between the sealing surface and an axial abutment surface located at a free end of the threaded portion distant from the thread, the male thread being made up into the female thread such that at least one male axial abutment surface is in contact with at least one female axial abutment surface, at least one male sealing surface being in interference contact with at least one corresponding female sealing surface, the portion of the lip between the sealing surface and the axial abutment surface being radially distant from a corresponding surface of the other threaded portion, at least one leak channel being provided in one of the threaded portions to place the chamber formed between the lip and the corresponding surface of the other threaded portion in communication with the interior of the connection. | 12-02-2010 |
20100283239 | SEALED THREADED TUBULAR CONNECTION WHICH IS RESISTANT TO SUCCESSIVE PRESSURE LOADS - A sealed threaded tubular connection resistant to successive pressure loads includes a male element including a male threading and a female element including a female threading corresponding to the male threading. At least one of the elements includes a lip extending beyond the threading to the free end of the element and the other element includes a recess for the lip. The lip includes a first zone with a peripheral surface turned towards the other element on which a first sealing surface is disposed that can be radially interference fitted against a corresponding second sealing surface disposed on the peripheral surface of the recess of the other element. The lip includes a second axially located zone between the first zone and the free end of the element that includes a first radial bearing surface turned towards the other element in contact with a corresponding second radial bearing surface disposed on the peripheral surface of the recess of the other element. The first and second zones are axially separated by a third zone with a radial stiffness lower than the first and second zones, the third zone capable of being radially deformed towards the other element by a pressure exerted thereon. | 11-11-2010 |
20100201119 | TUBULAR THREADED MEMBER WITH DRY PROTECTION COATING - A tubular threaded element including a dry protective coating. The coating includes a solid matrix adhering to the substrate in which there are dispersed particles of at least one solid lubricant belonging to one and the same class. The solid matrix is lubricating and has a rheological behaviour of plastic or viscoplastic type. The coating protects the threadings of the threaded elements, used for example in hydrocarbon wells, from corrosion and galling. | 08-12-2010 |
20100171310 | SEALED TUBULAR JOINT WITH PLASTIC EXPANSION AND AT LEAST ONE INCLINED SURFACE - A tubular joint in which radial expansion caused by the passage of an expander, inclined shoulder fittings formed respectively on a peripheral surface of the female element facing radially inwards and on a peripheral surface of the male element facing radially outwards, are subjected to a relative axial displacement towards each other to be urged into sealed mutual contact with radial interference. The tubular joint is, for example, useful in hydrocarbon wells. | 07-08-2010 |
20100171306 | THREADED ELEMENT OF A COMPONENT WITH OPPOSED THREADING PORTIONS AND CORRESPONDING TUBULAR THREADED CONNECTION - A threaded element of a component includes at least first and second threading portions each including threads each including a stabbing flank and a loading flank. The stabbing flanks and loading flanks of the threads of the first threading portion and the threads of the second threading portion are inclined in an opposed manner with respect to the radial direction. | 07-08-2010 |
20100171305 | THREADED TUBULAR CONNECTION WHICH IS RESISTANT TO BENDING STRESSES - A threaded tubular connection is provided. The connection includes a male tubular element provided with a male threaded portion and a female tubular element provided with a female threaded portion. The male threaded portion and the female threaded portion each include self-locking threads having a crest, a load flank, a stabbing flank and a root, a load flank lead of the self-locking threads being larger than a stabbing flank lead of the self-locking threads such that in a tightened position of the threaded tubular connection, the load flanks and the stabbing flanks of the male self-locking threads are engaged in tight contact with the load flanks and the stabbing flanks of the female self-locking threads. A transfer zone is axially disposed between the threaded portions and a free end of at least one of the tubular elements, while being axially spaced from the threaded portions. | 07-08-2010 |
20100167968 | LUBRICATING COMPOSITION WITH AN ADAPTABLE COEFFICIENT OF FRICTION, FOR A THREADED ELEMENT OF A COMPONENT OF A TUBULAR THREADED JOINT - A thin adhesive lubricating composition that can cover at least one thread and a screwing abutment of a threaded element of a component of a tubular threaded joint. The screwing abutment can bear against another abutment of another component of the tubular threaded joint in a terminal make up phase. The lubricating composition includes a matrix in which there is dispersed at least one braking additive selected to impart thereto, in addition to lubrication, a coefficient of friction to make it possible to obtain a torque on shoulder resistance value at least equal to a threshold value. | 07-01-2010 |
20100102553 | THREADED TUBULAR CONNECTION WHICH IS LEAK-PROOF UNDER INTERNAL AND EXTERNAL SUCCESSIVE PRESSURE LOADS - A threaded tubular connection that is leak-proof for internal and external successive pressure loads including a male element and a female element. At least one of the male or female elements includes a lip between the threading and the free end of the element. The lip includes a first zone with a peripheral surface turned towards the other element on which a first metallic sealing surface is disposed that can be radially interference fitted against a corresponding second metallic sealing surface disposed on the other element. The lip includes a second zone located axially between the first zone and the corresponding threading. The radial stiffness of the second zone is less than that of the first zone and that of a third zone adjacent to the second zone in the direction of the threading, and the second zone can be radially deformed by a pressure exerted thereon. | 04-29-2010 |
20100089484 | DEVICE FOR PROTECTING A MALE END OF A THREADED TUBULAR CONNECTION COMPONENT, HAVING OPEN AND CLOSED POSITIONS, AND ASSOCIATED METHODS AND MOUNTING MACHINES - A protective device for a male end of a component of a threaded tubular connection for drilling and working hydrocarbon wells is externally provided with at least one threading and includes a free terminal portion. The device includes i) a protector body produced in the form of a first sleeve and arranged to protect at least a portion of the external threading and the free terminal portion, ii) a sealing element for positioning in contact firstly with the component, at least at a portion located downstream of the external threading of the male end, and secondly with the protector body to provide a first seal downstream of the external threading, and iii) a fixing mechanism displacing the sealing element and/or protector body radially towards the component, defining open and closed positions of the device in which the sealing element and/or the protector body are respectively not in contact and in tight contact with the component. Further, the first seal is obtained in the closed position of the device. | 04-15-2010 |
20090220780 | TUBULAR THREADED ELEMENT PROVIDED WITH A DRY PROTECTIVE COATING - A tubular threaded element including a dry protective coating. The coating includes a solid matrix adhering to the substrate in which are dispersed particles of solid lubricants from at least two classes that are selected to exert a synergistic effect between themselves and with the constituents of the matrix, i.e. coating provides protection against corrosion and against galling of the threadings of threaded elements used in hydrocarbon wells. | 09-03-2009 |
20080309069 | External Protection for Expandable Threaded Tubular Connections - A female element of a threaded tubular connection that is fitted to undergo diametrical expansion in a plastic deformation region. The female element is disposed at one end of a tubular component and includes on its external periphery a mechanism that absorbs scratch energy of a scratching body that may come into external contact with the female element and a mechanism that retains the scratch energy absorption mechanism. The retaining mechanism is configured to prevent release of debris from the scratch energy absorption mechanism during expansion of the threaded tubular connection. | 12-18-2008 |
20080265575 | Liquid and Gas Tight Threaded Tubular Connection - A liquid and gas tight threaded tubular connection. A first axial abutment surface formed at the free end of an annular lip of a threaded male element and a second axial abutment surface formed at the end of a housing of a threaded female element have same axial half-sections, the inclination of which varies progressively in the radial direction. Such a configuration of the axial abutment surfaces optimizes radial thrust exerted on the end of the lip depending on its thickness, to obtain an increased radial interference between the respective sealing surfaces of both elements. Such a connection may find application to hydrocarbon wells, for example. | 10-30-2008 |
20080264632 | Installation and Method for Testing System of Loads of a Sample Using a Packer - A unit is dedicated to mechanically loading a tubular sample (ET). It comprises at least one packer (P) housed in the sample (ET) at a test zone (ZT), having a longitudinal extension which is greater than that of said test zone (ZT) and comprising i) first pressure means (C | 10-30-2008 |
20080223113 | Method for Pressure Testing a Threaded Component | 09-18-2008 |