Goods & Services

Tubes of metal; junctions of metal for pipes; rectangular tubes of steel; square tubes of steel; pipe extensions of metal; pipe unions of metal; racks [structures] of metal; portable stands of metal for use by spectators; profiled metal sections [semi-finished]; mouldings of metal for building; door sections of metal; metal materials for building and construction; frames of metal for building; structures of metal; buildings, transportable, of metal; buildings being fixed structures of metal; metal loading ramps [structures]; hollow steel bars; joists of iron or steel; metal framed buildings; building and construction materials and elements of metal; roof components of metal; space frames of metal; facade elements of metal; mouldings of metal for building; metal brackets; shaped metal sections; metal railings; framework of metal for building; frameworks of metal; shaped metal portions; structures of metal; metal materials for construction; frames of metal for building; ceiling supports of metal, stanchion stays of metal; building beams (metal -); metal goods for use in construction; pillars of metal; pillars of metal for building; steel beams; steel frames for building; structural steels; bracings of metal; beams of metal; frameworks of metal for ceilings; metal partitions for building; lintels of metal; scaffolding of metal; scaffolding towers of metal; safety scaffolding of metal. Barrels for use with drilling rigs; hangers [parts of machines]; pipes [fitted parts of machines]; tubes being fitted parts of machines.

Goods & Services

Tubes of metal; junctions of metal for pipes; rectangular tubes of steel; square tubes of steel; pipe extensions of metal; pipe unions of metal; metal structures in the nature of frame parts and boogie frames for rail vehicle and offshore constructions, jack-up rigs, and offshore platforms; portable stands of metal for use by spectators, namely, bleachers; metal profiles, namely, semi-finished profile sections of steel or iron; mouldings of metal for building; door sections of metal in the nature of door fittings; metal materials for building and construction, namely, seamless hollow sections made of carbon steel; frames of metal for building; structures of metal, namely, metal shelter structres; buildings, transportable, of metal; pre-fabricated buildings being fixed structures of metal; metal structures in the nature of loading ramps for use with vehicles; hollow steel bars; joists of iron or steel; transportable metal framed buildings; building and construction materials and elements of metal, namely, seamless hollow sections made of carbon steel for building, hall and roof construction, sport stadiums, rollercoaster and airport construction, bridge building, structural facing; roof components of metal, namely, tiles and panels; space frames of metal for building; facade elements of metal, namely, panels for construction purposes; mouldings of metal for building cornices; metal brackets for building; shaped metal sections in the nature of metal tubes; metal railings; framework of metal for building; frameworks of metal; shaped metal portions in the nature of metal tubes; structures of metal, namely, shelters; metal materials for railway construction; ceiling supports of metal, stanchion stays of metal; building beams of metal; metal goods for use in construction, namely, seamless hollow sections made of carbon steel; pillars of metal for buildings; pillars of metal for building; steel beams; steel frames for building; structural joint connectors of meta, namely, steels; bracings of metal for load handlig; beams of metal; frameworks of metal for ceilings; metal partitions for building; lintels of metal; scaffolding of metal; scaffolding towers of metal; safety scaffolding of metal; the aforementioned goods never for ventilation systems and air conditioning apparatus Barrels for use as a component part of drilling rigs; hangers being parts of machines; pipes being fitted parts of machines; tubes being fitted parts of machines; the aforementioned goods never for ventilation systems and air conditioning apparatus

Goods & Services

Penstock pipes of metal for transporting oil and/or natural gases; junctions of metal for oil pipelines or natural gas pipelines; screw-thread connectors of metal for gas-tight pipe connections for pipes for oil pipelines or natural gas pipelines; pipe muffs of metal for oil pipelines or natural gas pipelines; pipes of metal provided with screw-threads for oil pipelines or natural gas pipelines; manifolds of metal for pipelines; pipe strings of metal for the extraction of oil or natural gas; oilfield pipes and drill pipes of metal for searching for/exploitation of oil or gas. Pipeline construction and maintenance; fitting (laying) of pipes provided with screw-threads and/or screw-thread connectors of metal for gas-tight pipe connections; repair of pipes provided with screw-threads and/or screw-thread connectors of metal for gas-tight pipe connections; all the aforesaid limited to pipes for oil pipelines and natural gas pipelines and to oilfield pipes and drill pipes.

Goods & Services

Pipes of metal, in particular steel pipes; pipelines of metal, in particular of steel; pressure pipelines made of steel for transporting crude oil, natural gas, hydrogen and/or hydrogen mixtures; pipe connectors of metal, such as steel, in particular for oil pipelines, natural gas pipelines or hydrogen pipelines; threaded connectors of metal such as steel, in particular for oil pipelines, natural gas pipelines or hydrogen pipelines; pipe sleeves of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for extracting oil or natural gas; metal oil field pipes; drill strings of metal for oil fields. Repair and installation of metal pipelines; installation and maintenance of petroleum pipelines and hydrogen pipelines; installation of threaded pipes and/or gas-tight threaded metal fittings; repair of threaded pipes and/or gas-tight threaded metal fittings.

Goods & Services

(1) Penstock pipes of metal for transporting oil and/or natural gases; junctions of metal for oil pipelines or natural gas pipelines; screw-thread connectors of metal for gas-tight pipe connections for pipes for oil pipelines or natural gas pipelines; pipe muffs of metal for oil pipelines or natural gas pipelines; pipes of metal provided with screw-threads for oil pipelines or natural gas pipelines; manifolds of metal for pipelines; pipe strings of metal for the extraction of oil or natural gas; oilfield pipes and drill pipes of metal for searching for/exploitation of oil or gas. (1) Pipeline construction and maintenance; fitting (laying) of pipes provided with screw-threads and/or screw-thread connectors of metal for gas-tight pipe connections; repair of pipes provided with screw-threads and/or screw-thread connectors of metal for gas-tight pipe connections; all the aforesaid limited to pipes for oil pipelines and natural gas pipelines and to oilfield pipes and drill pipes.

Goods & Services

(1) Pipes of metal, in particular steel pipes; pipelines of metal, in particular of steel; pressure pipelines made of steel for transporting crude oil, natural gas, hydrogen and/or hydrogen mixtures; pipe connectors of metal, such as steel, in particular for oil pipelines, natural gas pipelines or hydrogen pipelines; threaded connectors of metal such as steel, in particular for oil pipelines, natural gas pipelines or hydrogen pipelines; pipe sleeves of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for extracting oil or natural gas; metal oil field pipes; drill strings of metal for oil fields. (1) Repair and installation of metal pipelines; installation and maintenance of petroleum pipelines and hydrogen pipelines; installation of threaded pipes and/or gas-tight threaded metal fittings; repair of threaded pipes and/or gas-tight threaded metal fittings.

Goods & Services

Pipes of metal, in particular steel pipes; pipelines comprised of metal pipes,in particular of steel; pressure pipelines comprised of metal pipes made of steel for transporting crude oil, natural gas, hydrogen and/or hydrogen mixtures; pipe connectors of metal, such as steel, in particular for oil pipelines, natural gas pipelines or hydrogen pipelines; threaded pipe connectors of metal such as steel, in particular for oil pipelines, natural gas pipelines or hydrogen pipelines; pipe sleeves being specifically adapted parts for pipes of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings being pipes of metal for extracting oil or natural gas; metal oil field pipes; drill strings of metal being metal pipes for oil fields Repair and installation of metal pipelines; installation and maintenance of petroleum pipelines and hydrogen pipelines; installation of threaded pipes and/or gas-tight threaded metal fittings; repair of threaded pipes and/or gas-tight threaded metal fittings

Goods & Services

Penstock pipes of steel for transporting oil and/or natural gases; Junctions of metal for pipes, In particular of steel, The aforesaid goods being for oil pipelines or natural gas pipelines; Screw-thread connectors of metal, in particular of steel, for gas-tight pipe connections, for pipes for oil pipelines or natural gas pipelines; Pipe muffs of metal, In particular of steel, The aforesaid goods being for oil pipelines or natural gas pipelines; Pipes of metal, in particular of steel, provided with screw-threads, The aforesaid goods being for oil pipelines or natural gas pipelines; Manifolds of metal for pipelines; Pipe strings of metal for the extraction of oil or natural gas; Oilfield pipes and drill pipes of metal for searching for/exploitation of oil or gas. Pipeline construction and maintenance; Fitting (laying) of pipes provided with screw-threads and/or screw-thread connectors of metal for gas-tight pipe connections; Repair of pipes provided with screw-threads and/or screw-thread connectors of metal for gas-tight pipe connections; All the aforesaid services being limited to pipes for oil pipelines or gas pipelines and oil field pipes and drill pipes.

Abstract

A threaded tubular connection which includes a pin member and a mating box member. The pin member has pin threads with stab flanks and load flanks and thread crests and thread roots which are adapted to be made-up with a mating box member having a complimentary thread structure. The pin member has a filter surface which begins at a thread run-out area. The mating box member has a similar filter surface which, when assembled as a connection, acts as a specifically sized particle resistant feature depending on the unwanted and harmful grain sized particles being filtered.

IPC Classes  ?

• E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
• F16L 15/08 - Screw-threaded jointsForms of screw-threads for such joints with supplementary elements
• F16L 57/00 - Protection of pipes or objects of similar shape against external or internal damage or wear

Goods & Services

Pipes of metal, in particular steel pipes; pipelines of metal, in particular of steel; steel penstocks for the transport of oil and/or natural gas; pipe connectors of metal such as steel, in particular for oil pipelines or natural gas pipelines; threaded connectors of metal such as steel, in particular for oil pipelines or natural gas pipelines; pipe sleeves of metal, in particular of steel; threaded tubes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for the transport of crude oil or natural gas; oilfield pipes of metal; metal drill strings for oil fields. Repair and installation of metal pipelines; pipeline installation and maintenance; installation of threaded pipes and/or gas-tight threaded fittings made of metal; repair of threaded pipes and/or gas-tight threaded connections made of metal.

Goods & Services

(1) Branching pipes of metal, primarily made from steel; metal penstock pipes; metal pipes for liquid and gas transfer; oil and gas drill pipes of metal; pipelines of metal, primarily made from steel for the oil and gas industry; steel penstocks for the transport of oil and natural gas; pipe connectors of metal, primarily of steel, for oil pipelines and natural gas pipelines; threaded connectors of metal, primarily of steel, for oil pipelines and natural gas pipelines; pipe sleeves of metal, primarily of steel; threaded tubes of metal, primarily of steel; manifolds of metal for pipelines; pipe strings of metal for the transport of crude oil and natural gas; oilfield pipes of metal; metal drill strings for oil fields. (1) Repair and installation of metal pipelines; pipeline installation and maintenance; installation of threaded pipes and gas-tight threaded fittings made of metal; repair of threaded pipes and gas-tight threaded connections made of metal.

Goods & Services

Pipes of metal, in particular steel pipes; pipelines of metal, in particular of steel; steel penstocks for the transport of oil and/or natural gas; pipe connectors of metal such as steel, in particular for oil pipelines or natural gas pipelines; threaded connectors of metal such as steel, in particular for oil pipelines or natural gas pipelines; pipe sleeves of metal, in particular of steel; threaded tubes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for the transport of crude oil or natural gas, namely, pipes of metal for use in extracting petroleum; oilfield pipes of metal; metal drill strings for oil fields, namely, metal drill strings for use with drilling rigs in the drilling of oil wells Repair and installation of metal pipelines; pipeline installation, namely, installation and maintenance of onshore pipelines; installation of threaded drill pipes and gas-tight threaded fittings made of metal for oil pipelines; repair of threaded pipes and gas-tight threaded connections made of metal

Abstract

In a device for optically measuring the external-thread profile of a pipe, comprising a support for the pipe to be measured and an optical measuring unit including at least one measuring device comprising a light source and a camera arranged in the optical path of the light source for recording a silhouette image of the external-thread profile, wherein the optical measuring unit is, in particular rigidly, mounted on a carrier element pivotally held about three spatial axes, the optical measuring unit comprises at least two measuring devices whose optical paths cross each other.

IPC Classes  ?

• G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
• G01N 21/952 - Inspecting the exterior surface of cylindrical bodies or wires

Goods & Services

Metal tubing, in particular of steel; penstock pipes of steel for the transportation of petroleum and/or natural gas; junctions of metal, in particular of steel, for pipes, in particular for oil pipelines and gas pipelines; gastight thread couplings of metal, in particular of steel, in particular for oil pipelines or gas pipelines; pipe muffs of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes of metal; coiled tubing of metal for oil fields and gas fields. Installation of threaded pipes and/or gastight thread couplings of metal; repair and maintenance of threaded pipes and/or gastight thread couplings of metal.

Goods & Services

Metal tubing, in particular of steel; penstock pipes of steel for the transportation of petroleum and natural gas; junctions of metal, in particular of steel, for pipes, in particular for oil pipelines and gas pipelines; gastight threaded couplings of metal, in particular of steel, in particular for oil pipelines or gas pipelines; pipe muffs of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings in the nature of pipes of metal for the extraction of petroleum and natural gas; oilfield pipes of metal; coiled tubing of metal for oil fields and gas fields Installation of threaded pipes and gastight threaded couplings of metal; repair and maintenance of threaded pipes and gastight threaded couplings of metal

Goods & Services

(1) Metal tubing, in particular of steel; penstock pipes of steel for the transportation of petroleum and/or natural gas; junctions of metal, in particular of steel, for pipes, in particular for oil pipelines and gas pipelines; gastight thread couplings of metal, in particular of steel, in particular for oil pipelines or gas pipelines; pipe muffs of metal, in particular of steel; threaded pipes of metal, in particular of steel for the extraction of oil and gas; manifolds of metal for pipelines; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes of metal; coiled tubing of metal for oil fields and gas fields (1) Installation of threaded pipes and/or gastight thread couplings of metal; repair and maintenance of threaded pipes and/or gastight thread couplings of metal

Abstract

The invention relates to a device for the optical measurement of the external thread profile (3) of pipes (1), comprising a support (5) for the pipe (1) to be measured and also comprising an optical measurement unit (4) with at least one measuring device (7, 8), which comprises a light source (19, 19', 21, 21') and a camera (20, 20', 22, 22') arranged in the beam path (23, 24) of the light source (19, 19', 21, 21') for recording a silhouette of the external thread profile (3), the optical measurement unit (4) being arranged in particular rigidly on a supporting element (6) which is held pivotably about three spatial axes. According to the invention the optical measurement unit (4) has at least two measuring devices (7, 8), the beam paths (23, 24) of which cross one another.

IPC Classes  ?

• G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
• G01B 11/245 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
• G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
• G01N 21/952 - Inspecting the exterior surface of cylindrical bodies or wires

Abstract

The invention relates to a device for the optical measurement of the external thread profile (3) of pipes (1), comprising a support (5) for the pipe (1) to be measured and also comprising an optical measurement unit (4) with at least one measuring device (7, 8), which comprises a light source (19, 19', 21, 21') and a camera (20, 20', 22, 22') arranged in the beam path (23, 24) of the light source (19, 19', 21, 21') for recording a silhouette of the external thread profile (3), the optical measurement unit (4) being arranged in particular rigidly on a supporting element (6) which is held pivotably about three spatial axes. According to the invention the optical measurement unit (4) has at least two measuring devices (7, 8), the beam paths (23, 24) of which cross one another.

IPC Classes  ?

• G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
• G01B 11/245 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
• G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
• G01N 21/952 - Inspecting the exterior surface of cylindrical bodies or wires

Abstract

A screw joint has a tubular element with a female thread and a tubular element with a male thread, wherein the male thread and the female thread have first contact surfaces that cooperate with each other, and the tubular elements optionally have second contact surfaces adjacent to the female thread and/or the male thread, wherein the first contact surfaces and the optional second contact surfaces each have a coating including a first and a second layer, wherein the first layer is formed as a conversion layer in each case, one of the first contact surfaces that cooperate with each other has a second layer made of ceramic material with a friction reducing effect and the other of the two contact surfaces that cooperate with each other has, as a second layer, a varnish layer with a binding agent made of an organic polymer throughout which solid lubricant particles are distributed.

IPC Classes  ?

• F16L 58/14 - Coatings characterised by the materials used by ceramic or vitreous materials
• F16L 57/06 - Protection of pipes or objects of similar shape against external or internal damage or wear against wear
• F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
• F16L 58/06 - Coatings characterised by the materials used by cement, concrete, or the like
• F16L 15/08 - Screw-threaded jointsForms of screw-threads for such joints with supplementary elements
• F16L 15/06 - Screw-threaded jointsForms of screw-threads for such joints characterised by the shape of the screw-thread
• B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
• B05D 1/18 - Processes for applying liquids or other fluent materials performed by dipping
• E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
• F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints

Goods & Services

Metal tubing, in particular of steel; penstock pipes of steel for the transport of petroleum and/or natural gas; junctions of metal for pipes, in particular of steel, in particular for oil pipelines or gas pipelines; gas-tight thread coupling of metal, in particular of steel, in particular for oil pipelines or gas pipelines; pipe muffs of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes of metal; drill strings of metal for oil and gas fields. Installation of threaded pipes and/or gas-tight thread couplings of metal; repair and maintenance of threaded pipes and/or gas-tight thread couplings of metal.

Goods & Services

Metal tubing of steel; penstock pipes of steel for the transport of petroleum and natural gas; junctions of steel for pipes for oil and gas pipelines; gas-tight thread couplings of steel for oil pipelines and gas pipelines; pipe muffs of metal, in particular of steel; manifolds of metal for pipelines; threaded pipes of steel; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes of metal; and drill strings of metal for oil and gas fields Installation of threaded pipes and gas-tight thread couplings of metal; repair and maintenance of threaded pipes and gas-tight thread couplings of metal

Goods & Services

(1) Metal tubing, in particular of steel, for the transport of petroleum and natural gas; penstock pipes of steel for the transportation of petroleum and natural gas; junctions of metal for pipes, in particular of steel, in particular for oil pipelines or gas pipelines; gas-tight thread coupling of metal, in particular of steel, in particular for oil pipelines or gas pipelines; pipe muffs of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes of metal; drill strings of metal for oil and gas fields (1) Installation of threaded pipes and gas-tight thread couplings of metal; repair and maintenance of threaded pipes and gas-tight thread couplings of metal

Abstract

A gas-tight pipe connection that has inner and outer pipe parts which when joined create a gas tight seal. The inner pipe part has a press fit surface, a stop surface, and a transition surface between the press fit surface and the stop surface. The outer pipe has an outer collar, a press fit surface, and a stop surface as well as a recess in its interior wall which extends from the press fit surface to the stop surface. When the outer pipe part is joined with the inner pipe part, the connection forms a press fit region, a stop region, and a transition region, where the transition region forms a coaxial intermediate space or hollow space.

IPC Classes  ?

• F16L 15/06 - Screw-threaded jointsForms of screw-threads for such joints characterised by the shape of the screw-thread

Abstract

The invention relates to a screw connection with an internal thread (7) and an external thread (6), both threads being provided with a phosphate layer (8, 9) as a first layer, wherein the internal thread comprises a ceramic material (11) having a friction-reducing effect as a second layer and the external thread comprises a paint layer (10) with a binder of an organic polymer as a second layer, in which solid lubricant particles are distributed.

IPC Classes  ?

• E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
• C04B 35/447 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on phosphates
• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
• F16L 15/08 - Screw-threaded jointsForms of screw-threads for such joints with supplementary elements

Abstract

The invention relates to a screw connection with an internal thread (7) and an external thread (6), both threads being provided with a phosphate layer (8, 9) as a first layer, wherein the internal thread comprises a ceramic material (11) having a friction-reducing effect as a second layer and the external thread comprises a paint layer (10) with a binder of an organic polymer as a second layer, in which solid lubricant particles are distributed.

IPC Classes  ?

• E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded

Goods & Services

Pipes of metal, in particular steel pipes; metal tubing, in particular of steel; penstock pipes of steel for the transportation of petroleum and/or natural gas; junctions of metal for pipes, in particular of steel, in particular for oil pipelines and gas pipelines; thread couplings of metal, in particular of steel for gastight connection of pipes, in particular of pipes for oil pipelines or gas pipelines; pipe muffs of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes and drill pipes of metal for the exploration and/or development of gas and oil deposits. Pipeline construction and maintenance; installation of threaded pipes and/or thread couplings of metal for gastight connection of pipes; repair of threaded pipes and/or thread couplings of metal for gastight connection of pipes.

Goods & Services

Pipes of metal, in particular steel pipes; metal tubing, in particular of steel; penstock pipes of steel for the transportation of petroleum and/or natural gas; junctions of metal for pipes, in particular of steel, in particular for oil pipelines and gas pipelines; thread couplings of metal, in particular of steel for gastight connection of pipes, in particular of pipes for oil pipelines or gas pipelines; pipe muffs of metal, in particular of steel; threaded pipes of metal, in particular of steel; manifolds of metal for pipelines; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes and drill pipes of metal for the exploration and/or development of gas and oil deposits Pipeline construction and maintenance; installation of threaded pipes and/or thread couplings of metal for gastight connection of pipes; repair of threaded pipes and/or thread couplings of metal for gastight connection of pipes

Goods & Services

(1) Pipes of metal, namely, steel pipes for the transport of oil and natural gas; metal tubing, namely, metal tubing of steel for mineral oil pipelines and natural gas pipelines; penstock pipes of steel for the transportation of petroleum and natural gas; junctions of metal for pipes, namely, steel junctions for pipes for oil pipelines and gas pipelines; thread couplings of metal, namely, steel thread couplings for gastight connection of pipes, namely, pipes for oil pipelines and gas pipelines; pipe muffs of metal, in particular of steel, threaded pipes of metal, namely, threaded pipes of steel for oil pipelines and natural gas pipelines; manifolds of metal for pipelines; pipe strings of metal for the extraction of petroleum and natural gas; oilfield pipes; drill pipes of metal for the exploration and development of gas and oil deposits. (1) Pipeline construction and maintenance; installation of threaded pipes and thread couplings of metal for gastight connection of pipes; repair of threaded pipes and thread couplings of metal for gastight connection of pipes.

Goods & Services

Pressure pipes of steel for the transport of oil and/or natural gas; pipe junctions of metal such as steel, in particular for oil pipelines or natural gas pipelines; gastight threaded connecting pieces of metal such as steel, in particular for oil pipelines or natural gas pipelines; pipe muffs of metal, in particular steel; threaded pipes of metal, in particular steel. Repair; oil pipeline construction and maintenance; installation of threaded pipes and/or gastight threaded connecting pieces of metal; repair of threaded pipes and/or gastight threaded connecting pieces of metal.

Goods & Services

Pressure pipes of steel for the transport of oil and natural gas; pipe junctions of metal, namely, steel and carbon steel, in particular for oil pipelines and natural gas pipelines; gastight threaded connecting pieces of metal, in particular steel, in particular for oil pipelines or natural gas pipelines; pipe muffs of metal, in particular steel; threaded pipes of metal, in particular steel oil pipeline construction, maintenance, and repair; installation of threaded pipes and gastight threaded connecting pieces of metal; repair of threaded pipes and gastight threaded connecting pieces of metal

Goods & Services

(1) Pressure pipes of steel for the transport of oil and natural gas; pipe junctions of metal, namely, steel for oil pipelines and natural gas pipelines; gastight threaded connecting pieces of metal, namely, steel for oil pipelines and natural gas pipelines; pipe muffs of metal, namely, steel; threaded pipes of metal, namely, steel. (1) Oil pipeline repair; oil pipeline construction and maintenance; installation of threaded pipes and gastight threaded connecting pieces of metal; repair of threaded pipes and gastight threaded connecting pieces of metal.

Abstract

The invention relates to a method and to an apparatus for producing pipes made of steel. According to the invention, within a period of time of no more than 20 seconds after the last deformation at a temperature greater than 700° C., but less than 1050° C., during passage a cooling medium is applied with elevated pressure onto the outside circumference of the pipe over a length of greater than 400 times the pipe wall thickness in a quantity which during rapid cooling provides an equivalent cooling speed of greater than 1° C./second of the pipe wall over the pipe length to a temperature in the range of 500° C. to 250° C., whereupon further cooling of the pipe down to room temperature is carried out by exposure to air.

IPC Classes  ?

• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C21D 1/62 - Quenching devices

Goods & Services

Pipes of metal, steel pipes, pipelines of metal, especially of steel, pressure pipelines of steel for the transport of oil and/or natural gas, pipe connecting pieces of metal, especially for oil pipelines or natural gas pipelines, gastight threaded connecting pieces of metal, especially for oil pipelines or natural gas pipelines, pipe collars of metal, especially of steel, threaded pipes of metal, especially of steel, intersections of metal for pipelines, piping runs of metal for the extraction of oil or natural gas, oil field pipes, casings of metal for oilwells. Repair; installation services, installation and maintenance of oil pipelines, installation of threaded pipes and/or gastight threaded connecting pieces of metal, repair of threaded pipes and/or gastight threaded connecting pieces of metal.

Goods & Services

Pipes of metal, steel pipes, pipelines of metal, especially of steel, pressure pipelines of steel for the transport of oil and/or natural gas, pipe connecting pieces of metal, especially for oil pipelines or natural gas pipelines, gas tight threaded connecting pieces of metal, especially for oil pipelines or natural gas pipelines, pipe collars of metal, especially of steel, threaded pipes of metal, especially of steel, intersections of metal for pipelines, piping runs of metal, namely, metal pipes for the extraction of oil or natural gas, oil field pipes of metal, casings of metal for oil wells [ Repair of steel pipes; installation services of steel pipes, installation and maintenance of oil pipelines, installation of threaded pipes and/or gas tight threaded connecting pieces of metal, repair of threaded pipes and/or gas tight threaded connecting pieces of metal ]

Goods & Services

(1) Steel tubes for mineral oil pipelines and natural gas pipelines and steel pipes for mineral oil pipelines and natural gas pipelines; pipelines made of metal, namely of steel; pressure pipelines made of steel for the transport of mineral oil and natural gas; strings of pipes made of metal for the conveying of mineral oil and natural gas; oilfield pipes; drilling strings for oilfields. (1) Repair of mineral oil pipelines; installation of oil pipelines; installation and maintenance of mineral oil pipelines; installation of pipes provided with threads and gas-tight threaded connection pieces made of metal; repair of pipes provided with threads and gas-tights threaded connections pieces made of metal.

Abstract

The invention relates to a method and to an apparatus for producing pipes made of steel. According to the invention, within a period of time of no more than 20 seconds after the last deformation at a temperature greater than 700ºC, but less than 1050ºC, during passage a cooling medium is applied with elevated pressure onto the outside circumference of the pipe over a length of greater than 400 times the pipe wall thickness in a quantity which during rapid cooling provides an equivalent cooling speed of greater than 1ºC/second of the pipe wall over the pipe length to a temperature in the range of 500ºC to 250ºC, whereupon further cooling of the pipe down to room temperature is carried out by exposure to air.

IPC Classes  ?

• 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

Abstract

The invention relates to a method and to an apparatus for producing pipes made of steel. According to the inventi-on, within a period of time of no more than 20 seconds after the last deformation at a temperature greater than 700°C, bit less than 1050°C, during passage a cooling medium is applied with elevated pressure onto the outside circumference of the pipe over a length of greater than 400 times the pipe wall thickness in a quantity which during rapid cooling provides an equivalent cooling speed of greater than 1°C/second of the pipe wall over the pipe length to a temperature in the range of 500°C to 250°C, whereupon further cooling of the pipe down to room temperature is carried out by exposure to air.

IPC Classes  ?

• 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

Abstract

The invention relates to a pipe connection, particularly a gas-tight pipe screw connection, wherein the parts in the connecting re-gion are connected by means of joining according to DIN 8593 by way of contact-pressing and insert-pressing, comprising an inner pipe part (I) and an outer pipe part (A), or two inner pipe parts (I) ha-ving an outer collar (A). In order to improve the usage properties in practice in the field, particularly in order to maintain the tightness of the respective pipe connection with combined loading, according to the invention the connection is established using three regions, wherein the connecting regions of the press fit (1) and stop (2) of the pipe parts, or the pipe parts and collar, comprise cooperating press fit surfaces (11, 1A), which have a truncated cone sha-pe and which are inclined in the end direction from the inner pipe part toward the pipe axis (x), and at the front comprise stop surfaces (21, 2A), which have a truncated cone shape and are directed coun-ter to said press fit surfaces (11, IA), and a transiti-on (3) is formed by the press fit (1) and stop (2) of the connected parts for said parts without contact with a coaxial intermediate space or hollow space (R).

IPC Classes  ?

• E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
• F16L 15/06 - Screw-threaded jointsForms of screw-threads for such joints characterised by the shape of the screw-thread

Abstract

The invention relates to a pipe connection, particularly a gas-tight pipe screw connection, wherein the parts in the connecting region are connected by means of joining according to DIN 8593 by way of contact-pressing and insert-pressing, comprising an inner pipe part (I) and an outer pipe part (A), or two inner pipe parts (I) having an outer collar (A). In order to improve the usage properties in practice in the field, particularly in order to maintain the tightness of the respective pipe connection with combined loading, according to the invention the connection is established using three regions, wherein the connecting regions of the press fit (1) and stop (2) of the pipe parts, or the pipe parts and collar, comprise cooperating press fit surfaces (1I, 1A), which have a truncated cone shape and which are inclined in the end direction from the inner pipe part toward the pipe axis (x), and at the front comprise stop surfaces (2I, 2A), which have a truncated cone shape  and are directed counter to said press fit surfaces (1I, 1A), and a transition (3) is formed by the press fit (1) and stop (2) of the connected parts for said parts without contact with a coaxial intermediate space or hollow space (R).

IPC Classes  ?

• E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
• F16L 15/06 - Screw-threaded jointsForms of screw-threads for such joints characterised by the shape of the screw-thread

Goods & Services

Pipes of metal, especially steel pipes, piping of metal, especially of steel, penstock pipes of steel for the transport of crude oil and/or natural gas, pipe connection pieces of metal, like of steel, especially for crude oil pipelines or natural gas pipelines, gas-tight threaded connection pieces of metal, like of steel, especially for crude oil pipelines or natural gas pipelines, pipe sleeves of metal, especially of steel, threaded pipes of metal, especially of steel, bifurcation pieces of metal for piping, pipe systems of metal for the production of oil or natural gas, oil field pipes, drilling systems for oil fields. Repair, installation services, installation and maintenance of crude oil pipelines, fitting of threaded pipes and/or of gas tight threaded connection pieces of metal, repair of threaded pipes and/or of gas tight threaded connection pieces of metal.

Goods & Services

Pipes of metal, especially steel pipes, piping of metal, especially of steel, penstock pipes of steel for the transport of crude oil and/or natural gas, pipe connection pieces of metal, like of steel, especially for crude oil pipelines or natural gas pipelines, gas-tight threaded connection pieces of metal, like of steel, especially for crude oil pipelines or natural gas pipelines, pipe connection pieces of metal for piping, pipe systems of metal consisting of strings of metal pipes, metal pipes, metal connection pipes, and metal couplings for the production of oil or natural gas, metal oil field pipes, drilling systems for oil fields consisting of strings of metal pipes, metal pipes, metal connection pipes, and metal couplings for the production of oil or natural gas, metal oil field pipes Repair and installation services for installation and maintenance of crude oil pipelines, fitting of threaded pipes and/or of gas tight threaded connection pieces of metal, repair of threaded pipes and/or of gas tight threaded connection pieces of metal

Goods & Services

(1) Branch elements made of metal for pipelines, namely pipe couplings.

Goods & Services

Pipes of metal, especially steel pipes, piping of metal, especially of steel, penstock pipes of steel for the transport of crude oil and/or natural gas, pipe connection pieces of metal, especially of steel, especially for crude oil pipelines or natural gas pipelines, gastight threaded connection pieces of metal, especially of steel, especially for crude oil pipelines or natural gas pipelines, pipe sleeves of metal, especially of steel, threaded pipes of metal, especially of steel, bifurcation pieces of metal for piping, pipe systems of metal for the production of oil or natural gas, oil field pipes. Repair, installation services, installation and maintenance of crude oil pipelines, fitting of threaded pipes and/or of gas tight threaded connection pieces of metal, repair of threaded pipes and/or of gas tight threaded connection pieces of metal.

Goods & Services

Pipes of metal, namely steel pipes, piping of metal, namely of steel, penstock pipes of steel for the transport of crude oil and/or natural gas, pipe connection pieces of metal, namely of steel, namely for crude oil pipelines or natural gas pipelines, gastight threaded connection pieces of metal, namely of steel, especially for crude oil pipelines or natural gas pipelines, pipe sleeves of metal, namely of steel, threaded pipes of metal, namely of steel, bifurcation pieces of metal for piping, pipe systems of metal containing strings of metal pipes, metal pipes, metal connection pieces, and metal couplings for the production of oil or natural gas, oil field pipes [ Repair and installation services, namely, installation and maintenance of crude oil pipelines, fitting of threaded pipes and/or of gas tight threaded connection pieces of metal, repair of threaded pipes and/or of gas tight threaded connection pieces of metal ]