Embodiments of a method of heat treating a coiled tube, in particular coiled tubes for use in the oil and gas industry, and pipes produced from the methods. In particular, embodiments of the heat treating method can utilized tempering without bending in order to avoid the generation of subsequent defects.
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 1/56 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
A drilling with casing monitor that receives transducer and rig data from a drilling operation, provides visualizations, and outputs a condition of a drilling with casing operation. The drilling with casing monitor includes a machine learning (ML) model that receives torque and acceleration inputs and outputs the condition of the drilling with casing operation. Systems, method, and computer-readable media implementing the model are provided.
E21B 7/20 - Driving or forcing casings or pipes into boreholes, e.g. sinkingSimultaneously drilling and casing boreholes
E21B 33/16 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes using plugs for isolating cement chargePlugs therefor
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 45/00 - Measuring the drilling time or rate of penetration
A drilling with casing monitor that receives transducer and rig data from a drilling operation, provides visualizations, and outputs a condition of a drilling with casing operation. The drilling with casing monitor includes a machine learning (ML) model that receives torque and acceleration inputs and outputs the condition of the drilling with casing operation. Systems, method, and computer-readable media implementing the model are provided.
A drilling with casing monitor that receives transducer and rig data from a drilling operation, provides visualizations, and outputs a condition of a drilling with casing operation. The drilling with casing monitor includes a machine learning (ML) model that receives torque and acceleration inputs and outputs the condition of the drilling with casing operation. Systems, method, and computer-readable media implementing the model are provided.
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 7/20 - Driving or forcing casings or pipes into boreholes, e.g. sinkingSimultaneously drilling and casing boreholes
Described herein are coiled tubes with improved and varying properties along the length that are produced by using a continuous and dynamic heat treatment process (CDHT). Coiled tubes can be uncoiled from a spool, subjected to a CDHT process, and coiled onto a spool. A CDHT process can produce a “composite” tube such that properties of the tube along the length of the tube are selectively varied. For example, the properties of the tube can be selectively tailored along the length of the tube for particular application for which the tube will be used.
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
E21B 17/20 - Flexible or articulated drilling pipes
7.
STEEL COMPOSITION, WROUGHT ARTICLE AND MANUFACTURING METHOD OF A SEAMLESS PRESSURE VESSEL FOR COMPRESSED GAS
A steel composition includes, in wt. %:
C: 0.25-0.35;
Si: 0.20-0.35;
Mn: 0.40-0.60;
Cr: 1.20-1.70;
Ni: 1.40-1.90;
Mo: 0.15-0.25;
Al: 0.015-0.035;
Nb: 0.001-0.040;
V: 0.001-0.060;
N: 0.0030-0.0120;
Ca: 0.0010-0.0030; and
Fe.
The wrought article made from this composition has a balanced set of mechanical properties including strength, ductility and toughness including resistance to fatigue crack propagation.
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 1/18 - HardeningQuenching with or without subsequent tempering
A steel composition, in particular for manufacturing a wrought steel article, in particular a seamless pressure vessel, such as a bottle or large cylinder for storage and/or transportation of compressed gas, particularly hydrogen, comprises, in wt.%: C: 0.25 - 0.35; Si: 0.20 - 0.35; Mn: 0.40 - 0.60; Cr: 1.20 - 1.70; Ni: 1.40 - 1.90; Mo: 0.15 - 0.25; Al: 0.015 - 0.035; Nb: 0.001 - 0.040; V: 0.001 - 0.060; N: 0.0030 - 0.0120; Ca: 0.0010 - 0.0030; Fe and inevitable impurities; the optional elements, if any,W: 0 - 0.20; Ti: 0 - 0.025; B: 0 - 0.0030; the inevitable impurities, if present, comprising one or more of the elements Cu: 0 - 0.30; S: 0 - 0.01; P: 0 - 0.015; As: 0 - 0.020; Sb: 0 - 0.005; Sn: 0 - 0.025; Pb: 0 - 0.01; O: 0 - 0.003; H: 0 - 0.00030. The wrought article made from this composition has a balanced set of mechanical properties including strength, ductility and toughness including resistance to fatigue crack propagation.
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
A steel composition, in particular for manufacturing a wrought steel article, in particular a seamless pressure vessel, such as a bottle or large cylinder for storage and/or transportation of compressed gas, particularly hydrogen, comprises, in wt.%: C: 0.25 - 0.35; Si: 0.20 - 0.35; Mn: 0.40 - 0.60; Cr: 1.20 - 1.70; Ni: 1.40 - 1.90; Mo: 0.15 - 0.25; Al: 0.015 - 0.035; Nb: 0.001 - 0.040; V: 0.001 - 0.060; N: 0.0030 - 0.0120; Ca: 0.0010 - 0.0030; Fe and inevitable impurities; the optional elements, if any,W: 0 - 0.20; Ti: 0 - 0.025; B: 0 - 0.0030; the inevitable impurities, if present, comprising one or more of the elements Cu: 0 - 0.30; S: 0 - 0.01; P: 0 - 0.015; As: 0 - 0.020; Sb: 0 - 0.005; Sn: 0 - 0.025; Pb: 0 - 0.01; O: 0 - 0.003; H: 0 - 0.00030. The wrought article made from this composition has a balanced set of mechanical properties including strength, ductility and toughness including resistance to fatigue crack propagation.
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
A system includes a feeder configured to feed a continuous length of a tube at a predefined rate, a speed sensor configured to determine a feed rate of the continuous length of the tube, a first geometry sensor configured to determine one or more geometric dimensions of a portion of the continuous length of the tube, a first treatment station comprising a first entrance, a first exit, and a first heat treatment zone therebetween, the first heat treatment zone comprising at least one first zone heating element, and a controller configured to power the first zone heating element at a first heat treatment power level based on a first heat treatment target value, the feed rate, one or more of the geometric dimensions, and a first heating element value of the first zone heating element. The system may also include additional heat treatment and cooling stations.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 11/00 - Process control or regulation for heat treatments
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
A pipe end protector for protecting pipe threads provided on a female pipe end of a pipe component for exploration and production of a hydrocarbon well, said pipe end protector comprising a main body and an annular flexible axial lip seal, wherein the main body is made from a first polymeric material having a first elastic modulus, and the lip seal is made from a second polymeric material having a second elastic modulus which is lower than the first elastic modulus.
Described herein are coiled tubes with improved and varying properties along the length that are produced by using a continuous and dynamic heat treatment process (CDHT). Coiled tubes can be uncoiled from a spool, subjected to a CDHT process, and coiled onto a spool. A CDHT process can produce a “composite” tube such that properties of the tube along the length of the tube are selectively varied. For example, the properties of the tube can be selectively tailored along the length of the tube for particular application for which the tube will be used.
C21D 9/10 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes shotgun barrels
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
E21B 17/20 - Flexible or articulated drilling pipes
14.
High performance material for coiled tubing applications and the method of producing the same
Embodiments of the present disclosure are directed to coiled steel tubes and methods of manufacturing coiled steel tubes. In some embodiments, the final microstructures of the coiled steel tubes across all base metal regions, weld joints, and heat affected zones can be homogeneous. Further, the final microstructure of the coiled steel tube can be a mixture of tempered martensite and bainite.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
B21C 37/08 - Making tubes with welded or soldered seams
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
Embodiments of the present disclosure are directed to coiled steel tubes and methods of manufacturing coiled steel tubes. In some embodiments, the final microstructures of the coiled steel tubes across all base metal regions, weld joints, and heat affected zones can be homogeneous. Further, the final microstructure of the coiled steel tube can be a mixture of tempered martensite and bainite.
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
A system includes a feeder configured to feed a continuous length of a tube at a predefined rate, a speed sensor configured to determine a feed rate of the continuous length of the tube, a first geometry sensor configured to determine one or more geometric dimensions of a portion of the continuous length of the tube, a first treatment station comprising a first entrance, a first exit, and a first heat treatment zone therebetween, the first heat treatment zone comprising at least one first zone heating element, and a controller configured to power the first zone heating element at a first heat treatment power level based on a first heat treatment target value, the feed rate, one or more of the geometric dimensions, and a first heating element value of the first zone heating element. The system may also include additional heat treatment and cooling stations.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
C21D 1/18 - HardeningQuenching with or without subsequent tempering
C21D 11/00 - Process control or regulation for heat treatments
Embodiments of the present disclosure are directed to coiled steel tubes and methods of manufacturing coiled steel tubes. In some embodiments, the final microstructures of the coiled steel tubes across all base metal regions, weld joints, and heat affected zones can be homogeneous. Further, the final microstructure of the coiled steel tube can be a mixture of tempered martensite and bainite.
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
Embodiments of a method of heat treating a coiled tube, in particular coiled tubes for use in the oil and gas industry, and pipes produced from the methods. In particular, embodiments of the heat treating method can utilized tempering without bending in order to avoid the generation of subsequent defects.
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 1/56 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
Embodiments of a method of heat treating a coiled tube, in particular coiled tubes for use in the oil and gas industry, and pipes produced from the methods. In particular, embodiments of the heat treating method can utilized tempering without bending in order to avoid the generation of subsequent defects.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
A quenching tank system includes a cooling tank having an entrance opening adapted to allow a first portion of a heated continuous tube to enter the cooling tank and to allow a first portion of a cooling fluid in the tank to flow out the entrance opening. The cooling tank includes an exit opening adapted to allow a partially cooled second portion of the continuous tube moving through the tank to exit the cooling tank and to allow a second portion of the cooling fluid in the tank to flow out the exit opening. The system also includes a cooling fluid collection and distribution system adapted to collect cooling fluid flowing out of the cooling tank, return the collected cooling fluid to the cooling tank and distribute the cooling fluid in the cooling tank. A method of cooling a heated continuous tube using a quenching tank system is described.
C21D 1/64 - Quenching devices for bath quenching with circulating liquids
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 1/18 - HardeningQuenching with or without subsequent tempering
A quenching tank system includes a cooling tank having an entrance opening adapted to allow a first portion of a heated continuous tube to enter the cooling tank and to allow a first portion of a cooling fluid in the tank to flow out the entrance opening. The cooling tank includes an exit opening adapted to allow a partially cooled second portion of the continuous tube moving through the tank to exit the cooling tank and to allow a second portion of the cooling fluid in the tank to flow out the exit opening. The system also includes a cooling fluid collection and distribution system adapted to collect cooling fluid flowing out of the cooling tank, return the collected cooling fluid to the cooling tank and distribute the cooling fluid in the cooling tank. A method of cooling a heated continuous tube using a quenching tank system is described.
C21D 1/64 - Quenching devices for bath quenching with circulating liquids
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
A coil tubing spool handling device includes a base structure and a vertical support structure. The base structure includes an upper surface, a lower surface, and a rocker portion with a curved surface to allow the base structure to rotate along the curved surface. The vertical support structure is connected to the base structure proximate the rocker portion, and extends substantially perpendicular to the upper surface. The vertical support structure and the upper surface can receive a coil tubing spool. A center of rotation of the rocker portion is located in a forward location relative to a center of gravity of the device when the vertical support structure and upper surface receive the coil tubing spool. The relative positions of the center of gravity and the center of rotation bias the handling device to rotate from a vertical position to a horizontal position.
B65G 7/08 - Devices adapted to be interposed between loads and the ground or floor, e.g. crowbars with means for assisting conveyance of loads for tilting the loads
B65H 75/02 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans
B65H 49/38 - Skips, cages, racks, or containers, adapted solely for the transport or storage of bobbins, cops, or the like
A coil tubing spool handling device includes a base structure and a vertical support structure. The base structure includes an upper surface, a lower surface, and a rocker portion with a curved surface to allow the base structure to rotate along the curved surface. The vertical support structure is connected to the base structure proximate the rocker portion, and extends substantially perpendicular to the upper surface. The vertical support structure and the upper surface can receive a coil tubing spool. A center of rotation of the rocker portion is located in a forward location relative to a center of gravity of the device when the vertical support structure and upper surface receive the coil tubing spool. The relative positions of the center of gravity and the center of rotation bias the handling device to rotate from a vertical position to a horizontal position.
Described herein are coiled tubes with improved and varying properties along the length that are produced by using a continuous and dynamic heat treatment process (CDHT). Coiled tubes can be uncoiled from a spool, subjected to a CDHT process, and coiled onto a spool. A CDHT process can produce a “composite” tube such that properties of the tube along the length of the tube are selectively varied. For example, the properties of the tube can be selectively tailored along the length of the tube for particular application for which the tube will be used.
C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
E21B 17/20 - Flexible or articulated drilling pipes
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
26.
Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes
Disclosed herein are embodiments of a seamless quenched and tempered steel pipe having a wall thickness (WT) higher than or equal to 35 mm and lower than or equal to 80 mm. Embodiments of the steel pipe can comprise C, Mn, Cr, Ni, Mo, Al, Ca, N, Nb, Ti, Zr, and Ta. Further, for some embodiments of the steel pipe wherein, defining a first parameter P1=50×C+Cr+10×Mo+70×V, the chemical composition can satisfy a first condition P1≦8.0.
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/48 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/48 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
Embodiments of the present disclosure are directed to coiled steel tubes and methods of manufacturing coiled steel tubes. In some embodiments, the final microstructures of the coiled steel tubes across all base metal regions, weld joints, and heat affected zones can be homogeneous. Further, the final microstructure of the coiled steel tube can be a mixture of tempered martensite and bainite.
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
The disclosed manufacture method for a length of tubing can produce a length of fatigue resistant tubing that has relatively high fatigue resistance and relatively low strip-to-strip welding length. The Fatigue resistance is calculated from experimental settings with controlled parameters and/or simulations reproducing similar material properties and loading conditions. A high fatigue resistance means certain product characteristics (e.g., low plasticization, low hydrostatic stress levels and free of imperfections welds) can be retained with an adequate bias weld design at low values after a specific test number of cyclic loading. The relatively low strip-to-strip welding length is an advantage for reducing probabilities of having cracks initiated and/or propagated at weld locations, where imperfections and localized differences of mechanical properties commonly cause failure. Low strip-to-strip welding length can also reduce the costs for welding.
B21C 37/08 - Making tubes with welded or soldered seams
B21C 47/24 - Transferring coils to or from winding apparatus or to or from operative position thereinPreventing uncoiling during transfer
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
E21B 19/22 - Handling reeled pipe or rod units, e.g. flexible drilling pipes
The disclosed manufacture method for a length of tubing can produce a length of fatigue resistant tubing that has relatively high fatigue resistance and relatively low strip-to-strip welding length. The Fatigue resistance is calculated from experimental settings with controlled parameters and/or simulations reproducing similar material properties and loading conditions. A high fatigue resistance means certain product characteristics (e.g., low plasticization, low hydrostatic stress levels and free of imperfections welds) can be retained with an adequate bias weld design at low values after a specific test number of cyclic loading. The relatively low strip- to-strip welding length is an advantage for reducing probabilities of having cracks initiated and/or propagated at weld locations, where imperfections and localized differences of mechanical properties commonly cause failure. Low strip-to-strip welding length can also reduce the costs for welding.
Embodiments of the present disclosure are directed to coiled steel tubes and methods of manufacturing coiled steel tubes. In some embodiments, the final microstructures of the coiled steel tubes across all base metal regions, weld joints, and heat affected zones can be homogeneous. Further, the final microstructure of the coiled steel tube can be a mixture of tempered martensite and bainite.
B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
Embodiments of the present disclosure comprise carbon steels and methods of manufacture. In one embodiment, quenching and tempering procedure is performed in which a selected steel composition is formed and heat treated to yield a slightly tempered microstructure having a fine carbide distribution. In another embodiment, a double austenizing procedure is disclosed in which a selected steel composition is formed and subjected to heat treatment to refine the steel microstructure. In one embodiment, the heat treatment may comprise austenizing and quenching the formed steel composition a selected number of times (e.g., 2) prior to tempering. In another embodiment, the heat treatment may comprise subjecting the formed steel composition to austenizing, quenching, and tempering a selected number of times (e.g., 2). Steel products formed from embodiments of the steel composition in this manner (e.g., seamless tubular bars and pipes) will possess high yield strength, e.g., at least about 165 ksi, while maintaining good toughness.
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
C21D 1/25 - Hardening, combined with annealing between 300 °C and 600 °C, i.e. heat refining ("Vergüten")
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
06 - Common metals and ores; objects made of metal
Goods & Services
Unwrought and partly wrought common metals and their alloys; anchors, anvils, bells, rolled and cast building materials; metallic materials for railway tracks; and chains included in class 6, metallic pipes and tubes (not being boiler tubes or parts of machines), steel balls, metal casters and metal clamps for scaffolding.
Embodiments of the present disclosure comprise carbon steels and methods of manufacture. In one embodiment, a double austenizing procedure is disclosed in which a selected steel composition is formed and subjected to heat treatment to refine the steel microstructure. In one embodiment, the heat treatment may comprise austenizing and quenching the formed steel composition a selected number of times (e.g., 2) prior to tempering. In another embodiment, the heat treatment may comprise subjecting the formed steel composition to austenizing, quenching, and tempering a selected number of times (e.g., 2). Steel products formed from embodiments of the steel composition in this manner (e.g., seamless tubular bars and pipes) will possess high yield strength, at least about 175 ksi (about 1200 MPa) while maintaining good toughness.
C21D 1/25 - Hardening, combined with annealing between 300 °C and 600 °C, i.e. heat refining ("Vergüten")
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
The present invention relates to a device and a method for transversely moving tubular material inside a furnace, in which the tubes are able to roll in order to have a path per cycle that is 2.5 times as great as that obtained in the case of moving bars, and in which the tubes are pushed by a series of toothed bars that have an upward and downward movement plus a horizontal movement in vacuum. The device and a method for moving tubular material inside an furnace allows a greater rotation of the tubes over short cycle times, solves the problems of twisting of smaller-diameter tubes (tubing) in quench furnaces and meets the need to rotate the tubes when there is no forward movement, which may be necessary when cycle times are long or when unloading from the furnace is interrupted.
B65G 25/02 - Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having different forward and return paths of movement, e.g. walking-beam conveyors
F27B 9/20 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
B65G 33/02 - Screw or rotary spiral conveyors for articles
B65G 47/26 - Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
B65G 19/02 - Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for articles, e.g. for containers
B65G 19/22 - Impellers, e.g. push-plates, scrapersGuiding means therefor
F27B 9/22 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path under the action of scrapers or pushers
B21B 43/02 - Cooling beds comprising rakes or bars
14 - Precious metals and their alloys; jewelry; time-keeping instruments
18 - Leather and imitations of leather
25 - Clothing; footwear; headgear
Goods & Services
Jewellery, precious stones; Horological and chronometric instruments; Costume jewellery; Faux jewellery. Leather and imitations of leather, and goods made of these materials and not included in other classes; Trunks and travelling bags; Umbrella. Clothing, footwear, headgear.
38.
Method of making ultra high strength steel having good toughness
Embodiments of the present disclosure comprise carbon steels and methods of manufacture. In one embodiment, a double austenizing procedure is disclosed in which a selected steel composition is formed and subjected to heat treatment to refine the steel microstructure. In one embodiment, the heat treatment may comprise austenizing and quenching the formed steel composition a selected number of times (e.g., 2) prior to tempering. In another embodiment, the heat treatment may comprise subjecting the formed steel composition to austenizing, quenching, and tempering a selected number of times (e.g., 2). Steel products formed from embodiments of the steel composition in this manner (e.g., seamless tubular bars and pipes) will possess high yield strength, at least about 175 ksi (about 1200 MPa) while maintaining good toughness.
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
Embodiments of the present disclosure comprise carbon steels and methods of manufacture. In one embodiment, quenching and tempering procedure is performed in which a selected steel composition is formed and heat treated to yield a slightly tempered microstructure having a fine carbide distribution. In another embodiment, a double austenizing procedure is disclosed in which a selected steel composition is formed and subjected to heat treatment to refine the steel microstructure. In one embodiment, the heat treatment may comprise austenizing and quenching the formed steel composition a selected number of times (e.g., 2) prior to tempering. In another embodiment, the heat treatment may comprise subjecting the formed steel composition to austenizing, quenching, and tempering a selected number of times (e.g., 2). Steel products formed from embodiments of the steel composition in this manner (e.g., seamless tubular bars and pipes) will possess high yield strength, e.g., at least about 165 ksi, while maintaining good toughness.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
40.
Heavy wall steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance
Embodiments of the present disclosure comprise carbon steels and methods of manufacturing thick walled pipes (wall thickness greater than or equal to about 35 mm) there from. In one embodiment, a steel composition is processed that yields an average prior austenite grain size greater than about 15 or 20 μm and smaller than about 100 μm. Using this composition, a quenching sequence is provided that yields a microstructure of greater than or equal to about 50% by volume, and less than or equal to about 50% by volume, lower bainite, without substantial ferrite, upper bainite, or granular bainite. After quenching, pipes may be tempered. The quenched and tempered pipes may exhibit yield strengths greater than about 450 MPa (65 ksi) or 485 (70 ksi). Mechanical property measurements find the quenched and tempered pipes suitable for 450 MPa grade and 485 MPa grade, and resistance to sulfide stress corrosion cracking.
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
41.
High strength steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance
Low-alloy steels and methods of manufacturing pipes having a wall thickness greater than or equal to about 8 mm and less than or equal to about 35 mm therefrom are provided. In one embodiment, a steel composition is processed that yields an average prior austenite grain size greater than about 15 or 20 μm and smaller than about 100 μm. A quenching sequence has been determined that yields a microstructure of greater than or equal to about 60% martensite by volume, and less than or equal to about 40% by volume lower bainite, without substantial formation of ferrite, upper bainite, or granular bainite. The yield strength of the quenched and tempered pipes may be greater than about 70 ksi, 80 ksi, or 90 ksi. The quenched and tempered pipes are suitable for 70 ksi, 80 ksi, and 90 ksi grades and resistant to sulfide stress corrosion cracking.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
The present invention relates generally to metal production and, in certain embodiments, relates to methods of producing metallic tubular bars having high toughness at low temperature while concurrently possessing sulfide stress corrosion cracking resistance. Such embodiments address applications where traditional pipe solutions cannot be used, such as in more demanding environments that place ever increasing demands on the materials and supply capability. Certain embodiments relate to heavy wall seamless steel pipes for risers, line pipes and flow lines for use in the oil and gas industry, including pipes that are suitable for bending. Embodiments include carbon steels and methods of manufacturing. A quenching sequence may provide a microstructure of greater than or equal to about 50% by volume, and less than or equal to about 50% by volume lower bainite, without substantial formation of ferrite, upper bainite, or granular bainite. The pipe may be subjected to tempering.
B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
The present invention relates generally to metal production and, in certain embodiments, relates to methods of producing metallic tubular bars having high toughness at low temperature while concurrently possessing sulfide stress corrosion cracking resistance. Such embodiments address applications where traditional pipe solutions cannot be used, such as in more demanding environments that place ever increasing demands on the materials and supply capability. Certain embodiments relate to heavy wall seamless steel pipes for risers, line pipes and flow lines for use in the oil and gas industry, including pipes that are suitable for bending. Embodiments include carbon steels and methods of manufacturing. A quenching sequence may provide a microstructure of greater than or equal to about 50% by volume, and less than or equal to about 50% by volume lower bainite, without substantial formation of ferrite, upper bainite, or granular bainite. The pipe may be subjected to tempering.
B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
Described herein are coiled tubes with improved and varying properties along the length that are produced by using a continuous and dynamic heat treatment process (CDHT). Coiled tubes can be uncoiled from a spool, subjected to a CDHT process, and coiled onto a spool. A CDHT process can produce a “composite” tube such that properties of the tube along the length of the tube are selectively varied. For example, the properties of the tube can be selectively tailored along the length of the tube for particular application for which the tube will be used.
C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
E21B 17/20 - Flexible or articulated drilling pipes
45.
COILED TUBE WITH VARYING MECHANICAL PROPERTIES FOR SUPERIOR PERFORMANCE AND METHODS TO PRODUCE THE SAME BY A CONTINUOUS HEAT TREATMENT
Described herein are coiled tubes with improved and varying properties along the length that are produced by using a continuous and dynamic heat treatment process (CDHT). Coiled tubes can be uncoiled from a spool, subjected to a CDHT process, and coiled onto a spool. A CDHT process can produce a "composite" tube such that properties of the tube along the length of the tube are selectively varied. For example, the properties of the tube can be selectively tailored along the length of the tube for particular application for which the tube will be used.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
E21B 17/20 - Flexible or articulated drilling pipes
A method for making lined bends, wherein the smaller thinner pipe (3) is inserted into the larger thicker pipe (2), both extremities of the pipe assembly (1) are sealed by welding and the closed space is filled with nitrogen. The gas is then put under pressure and a portion of the pipe assembly (1) is heated by means of a hot induction device (9) until reaching an appropriate temperature to allow a good deformability of the metal, a bending moment then being applied while maintaining controlled pneumatic internal pressure in the interior of the pipe assembly (1).
B21D 7/16 - Auxiliary equipment, e.g. for heating or cooling of bends
B21D 7/02 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment
B21D 7/024 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment by a swinging forming member
B21D 51/24 - Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
The present invention relates to a device and a method for transversely moving tubular material inside a furnace, in which the tubes are able to roll in order to have a path per cycle that is 2.5 times as great as that obtained in the case of moving bars, and in which the tubes are pushed by a series of toothed bars that have an upward and downward movement plus a horizontal movement in vacuum. The device and a method for moving tubular material inside an furnace allows the greater rotation of the tubes over short cycle times, solves the problems of twisting of smaller-diameter tubes (tubing) in quench furnaces and meets the need to rotate the tubes when there is no forward movement, which may be necessary because the cycle times are longitudinal or because unloading from the furnace is interrupted.
F27B 9/20 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
B65G 25/02 - Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having different forward and return paths of movement, e.g. walking-beam conveyors
B21B 43/02 - Cooling beds comprising rakes or bars
49.
NICKEL-BASED SUPERALLOY AND MANUFACTURING PROCESS THEREOF
A nickel-based superalloy consisting in wt% of Co =1-8%; W = 7-15%; Mo =1-8%; Ta = 7-15%; Al = 4-9%; Cr <0,5%; C ≤ 0,1% and the remaining being Ni impurities having a mechanical strength at very high temperature, up to 1300°C, higher than that of the known superalloys by raising the Tsolidus of the alloy and developing an intermetallic γ' phase in high percentages by volume, higher than 70%, which maintains its properties practically unchanged until the incipient melting of the alloy, having a Tsolidus, i.e. a solvus temperature of the γ' phase higher than the Tsolidus of the alloy, i.e. the temperature at which the liquid phase starts being present.
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
B21B 25/00 - Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group Accessories or auxiliary means therefor
50.
P-TYPE PIEZORESISTIVE RESONANT MICROSENSOR FOR MEASURING MAGNETIC FIELDS
The invention relates to a p-type piezoresistive resonant microsensor which uses the Lorentz force law for measuring a wide range of magnetic fields (1 -400G) with a high quality factor (Q=842) and magnetic sensitivity (40.3 μV/G) operating at atmospheric pressure. The aim of the invention is to improve existent resonant microsensors by using an optimised 15 μm-thick structural beam-plate configuration made of silicon, with an improved Wheatstone bridge comprising boron-doped (p-type) piezoresistors, and an aluminium loop configuration around the beam-plate structure, enabling improved general operation of the microsensor with a minimum of structural components.
G01R 33/038 - Measuring direction or magnitude of magnetic fields or magnetic flux using permanent magnets, e.g. balances, torsion devices
G01R 33/12 - Measuring magnetic properties of articles or specimens of solids or fluids
G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
G01P 15/12 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by alteration of electrical resistance
A method to manufacture tubing includes co-forming a base material strip and a liner material strip into a string of internally-lined tubing and joining edges of the base material strip to form a seam therebetween.
A method to manufacture tubing includes co-forming a base material strip and a liner material strip into a string of internally-lined tubing and joining edges of the base material strip to form a seam therebetween.
B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes
B21D 39/00 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders
B23P 25/00 - Auxiliary treatment of workpieces, before or during machining operations, to facilitate the action of the tool or the attainment of a desired final condition of the work, e.g. relief of internal stress
06 - Common metals and ores; objects made of metal
Goods & Services
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.
54.
A SEAMLESS STEEL TUBE FOR WORK-OVER RISER AND METHOD OF MANUFACTURING
The present invention relates to seamless steel tubing for conditioning risers, said tubing comprising, in percentage by weight, 0.23-0.29 carbon, 0.45-0.65 manganese, 0.15-0.35 silicon, 0.90-1.20 chromium, 0.70-0.90 molybdenum, maximum 0.20 nickel, maximum 0.010 nitrogen, 0.0010-0.0030 boron, 0.010-0.045 aluminium, maximum 0.005 sulphur, maximum 0.015 phosphorus, 0.005-0.030 titanium, 0.020-0.035 niobium, maximum 0.15 copper, maximum 0.20 arsenic, maximum 0.0040 calcium, maximum 0.020 tin, maximum 2.4 ppm hydrogen, the remainder being iron and inevitable impurities. The geometry of the pipe is such that the ends thereof have increasing wall thickness and outer diameter, and the pipe has an elasticity limit of at least 620 MPa (90 ksi) throughout the length of the pipe body and at the pipe ends. The present invention also relates to methods for producing seamless steel piping for conditioning risers having an elasticity limit of at least 620 MPa (90 ksi) both in the pipe body and at the pipe ends.
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
E21B 19/00 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrickApparatus for feeding the rods or cables
55.
SEAMLESS STEEL PIPE TO BE USED AS A STEEL CATENARY RISER IN THE TOUCHDOWN ZONE
The invention relates to an SCR with upset ends, consisting of a novel chemical composition having a low carbon content and a microstructure, and to a method for producing said SCR. Said method improves the fatigue life of the SCR by creating a single component with the riser pipe section in the touchdown zone. The SCR with upset ends and a low carbon content obtains its desired properties by means of the heat treatment to which it is subjected. The novel chemical composition having a low carbon content and microstructure comprise, in weight percentage, between 0.04 and 0.10 of carbon, between 0.40 and 0.70 of manganese, between 0.15 and 0.35 of silicon, between 0.40 and 0.70 of chrome, between 0.40 and 0.70 of molybdenum, between 0.10 and 0.40 of nickel, a maxiumum of 0.008 of nitrogen, between 0.010 and 0.045 of aluminium, a maximum of 0.005 of sulphur, a maximum of 0.020 of phosphorus, between 0.003 and 0.020 of titanium, between 0.020 and 0.035 of niobium, no more than 0.10 of vanadium, no more than 0.20 of copper, a maximum of 0.020 of tin, and the equivalent of a maximum of 0.43 of carbon and no more than 0.23 of PCM, with a yield strength of at least 4569.5 kg/cm2, an utimate tensile strength of at least 541 3.1 kg/cm2, and a YS/UTS ratio lower than 0.89 in the material forming the body of the pipe, the transition zone and the upset end.
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
F16L 23/024 - Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
56.
Sucker rod connection with improved fatigue resistance, formed by applying diametrical interference to reduce axial interference
A sucker rod connection is disclosed. The sucker rod connection comprises a tapered male member including a plurality of trapezoidal threads, and, a tapered female member also including a plurality of trapezoidal threads, in which the male member is capable of being received in threaded engagement with the female member, wherein the threads of the male member are in flank-to-flank contact, both flanks on each thread, with the threads of the female member, thereby creating diametrical interference between the male and female members preventing disengagement and substantially reducing axial interference between the male and female members.
Sucker rod connections are provided, preferably for rods with 5/8" to 1 1/8" 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 threaded connection and trapezoidal threads, where contact among threads is flank-to- flank, load and stab, the crest of the thread being a little larger than the root of the thread. Each rod may have from about 4 to 10 threads per inch, preferably about 6 and 10 threads per inch (25.4 mm), the thread flank angle ranges from about 2.degree. to 10.degree., preferably about 3.degree. with a line perpendicular to the connection axis, and the connection taper is from about 1/15 to 1/30 relative to diameters of the connection. The flank-to-flank contact improves fatigue performance and the width and angle of the threads are determined considering a very low plastic thread deformation. Furthermore, the tensile stresses and plastic deformations that appear upon loading the rod connection are reduced and their distribution is more homogeneous than in the case of a cylindrical connection with no diametrical interference, where release engagement depends solely on axial interference.
The present invention pertains to steel with high mechanical resistance at room temperature and up to 130° C., good toughness and good corrosion resistance in the metal base as well as good resistance to cracking in the heat affected zones (HAZ) once the tubing is welded together, and more specifically to heavy gauge seamless steel tubing with high mechanical resistance, good toughness and good corrosion resistance called catenary conduit. The advantages of the present invention with respect to those of an the state of technology reside in providing a chemical composition for steel used to manufacture heavy gauge seamless steel tubing with high mechanical resistance, good toughness, good fissure resistance in the HAZ and good corrosion resistance and a process for manufacturing this product. These advantages are obtained by using a composition made up basically of Fe and a specific chemical composition.
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Métaux communs et leurs alliages; matériaux de construction
métalliques; constructions transportables métalliques;
matériaux métalliques pour les voies ferrées; câbles et fils
métalliques non électriques; serrurerie et quincaillerie
métalliques; tuyaux métalliques; coffres-forts; produits
métalliques non compris dans d'autres classes; minerais.
06 - Common metals and ores; objects made of metal
Goods & Services
Métaux communs et leurs alliages; matériaux de construction
métalliques; constructions transportables métalliques;
matériaux métalliques pour les voies ferrées; câbles et fils
métalliques non électriques; serrurerie et quincaillerie
métalliques; tuyaux métalliques; coffres-forts; produits
métalliques non compris dans d'autres classes; minerais.
06 - Common metals and ores; objects made of metal
Goods & Services
Métaux communs et leurs alliages; matériaux de construction
métalliques; constructions transportables métalliques;
matériaux métalliques pour les voies ferrées; câbles et fils
métalliques non électriques; serrurerie et quincaillerie
métalliques; tuyaux métalliques; coffres-forts; produits
métalliques non compris dans d'autres classes; minerais.
06 - Common metals and ores; objects made of metal
Goods & Services
Métaux communs et leurs alliages; matériaux de construction
métalliques; constructions transportables métalliques;
matériaux métalliques pour les voies ferrées; câbles et fils
métalliques non électriques; serrurerie et quincaillerie
métalliques; tuyaux métalliques; coffres-forts; produits
métalliques non compris dans d'autres classes; minerais.
06 - Common metals and ores; objects made of metal
Goods & Services
Métaux communs et leurs alliages; matériaux de construction
métalliques; constructions transportables métalliques;
matériaux métalliques pour les voies ferrées; câbles et fils
métalliques non électriques; serrurerie et quincaillerie
métallique; tuyaux métalliques; coffres-forts; produits
métalliques non compris dans d'autres classes; minerais à
l'état brut.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
04 - Industrial oils and greases; lubricants; fuels
05 - Pharmaceutical, veterinary and sanitary products
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
12 - Land, air and water vehicles; parts of land vehicles
15 - Musical instruments
16 - Paper, cardboard and goods made from these materials
17 - Rubber and plastic; packing and insulating materials
18 - Leather and imitations of leather
19 - Non-metallic building materials
20 - Furniture and decorative products
21 - HouseHold or kitchen utensils, containers and materials; glassware; porcelain; earthenware
32 - Beers; non-alcoholic beverages
Goods & Services
(1) Joints for metal tubular scaffolding and unassembled parts of such joints; flanged basis, ladder pins; anchoring screws; wrenches for tightening bolts; wheels with and without rubber tires for metal tubular scaffolding; welded and unwelded steel pipes, conduits, piles and columns, stakes and small pillars, trolley poles, antennae for all uses, loading booms, hooks for loading and cranes for loading, pressure tanks and bottles, cylindrical bodies and condensers for boilers, cylinder jackets, pistons and presses, tools and machine tools for drilling; simple and reinforced amiant concrete pipes, with steel plate core; fertilizers for land (natural and artificial); extinguisher preparations; tempers and chemical preparations for welding; chemical products for the conservation of edibles; adhesive substances for industry; colours, paints; lacquers; materials for protection against rust and against the deterioration of wood; dyeing materials, mordants, resins; metals in foil and in powder form for painters and decorators; industrial oils and greases (excepting edible oils, greases and essential oils); lubricants, preparations to agglomerate powder, combustible preparations (including fuels for motors), altar candles, candles, night lights and wicks; common metals, crude and semi-refined and their alloys; anchors, anvils, bells, rails, chains (exclusive of motive chains for vehicles); anelectric metal cables and wires, metallic pipes, safes and safety boxes; steel spheres; horse shoes; nails and screws; natural and artificial stone, cement, lime , mortar, plaster and sand; stone and cement pipes; asphalt, tar and bitumen, movable buildings; monuments in stone; fireplaces, plastic pipes, plastic joints, flexible non-metallic pipes.
