WO1992017730A1 - Raccords pour tubes de cuvelage - Google Patents

Raccords pour tubes de cuvelage Download PDF

Info

Publication number
WO1992017730A1
WO1992017730A1 PCT/AU1992/000146 AU9200146W WO9217730A1 WO 1992017730 A1 WO1992017730 A1 WO 1992017730A1 AU 9200146 W AU9200146 W AU 9200146W WO 9217730 A1 WO9217730 A1 WO 9217730A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
layer
layers
metal
punch
Prior art date
Application number
PCT/AU1992/000146
Other languages
English (en)
Inventor
Terence John George
Original Assignee
Overall Forge Pty. Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Overall Forge Pty. Ltd. filed Critical Overall Forge Pty. Ltd.
Publication of WO1992017730A1 publication Critical patent/WO1992017730A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/08—Casing joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges

Definitions

  • the present invention relates to the forge connecting of metal layers and more particularly but not exclusively to connectors employed to join lengths of pipe during a drilling operation such as an off-shore drilling operation.
  • the connectors consist of a set comprising a male and a female portion.
  • Connectors Many types of such rings are used In the oil and gas drilling industry.
  • One such type are Known as Connectors.
  • Connectors consist of a male and female connector portion which join to link lengths of pipe during an off-shore drilling operation.
  • the male portion is externally threaded or profiled and the female portion is internally threaded or profiled.
  • Each portion is welded to an associated length of pipe.
  • the pipe lengths are a lining (or bore-casing) for the drilled hole as it is being drilled.
  • each connector portion For the connectors to function correctly, the threaded or profiled sections of each connector portion must withstand considerable stress, and yet each portion must be easily welded to a length of pipe.
  • each connector portion is usually formed of a relatively strong material. Inherently such strong materials are difficult to weld unless the connector portion and the extremity of the pipe are pre-heated to facilitate welding.
  • each connector portion to its associated length of pipe is time consuming and may result in poor weld properties and poor weld quality.
  • a unitary structure of metal layers said structure being of a generally annular configuration and consisting of a laminated structure so as to have a radially inner section and a radially outer section forge connected to the inner section so as to be integrally bonded thereto, and wherein one section consists of a layer of strong metal to provide a portion of the structure with mechanical strength, an the other section consists of a layer of more ductile metal to provide a portion of the structure with another property not provided by said one section.
  • the above unitary structure includes at least a third section consisting of a third metal layer, with the sections being arranged generally concentric and forge connected so as to be intregrally bonded together, and wherein said one section, said other section, and the third section each provide a portion of the structure with a property not provided by the other sections.
  • the above unitary structure is steel connector portion and said one section is intended to be threaded or profiled, and said other section facilitates welding of the connector portion to a length of drill pipe.
  • the third annular section is a corrosion resistant metal providing the steel connector with a portion which is corrosion resistant.
  • Figure 1(A) to Figure 1(E) are schematic perspective view of the manufacture of a female or male connector portion of a connector set
  • Figure 2(A) to Figure 2(E) are schematic sectioned side elevations of the connector portion of Figure 1;
  • Figure 3 is a schematic perspective view of a finished female connector blank
  • Figure 4 is a schematic perspective view of a finished male connector blank
  • Figure 5 is a schematic sectioned side elevation of a substantially finished female connector blank
  • Figure 6 is a schematic sectioned side elevation of a substantial finished male connector blank
  • Figures 7 to 11 are schematic sectioned side elevations of female or male connector portions of a connector set
  • Figure 12 is a schematic part sectioned side elevation of a female or male connector portion of a connector set
  • Figures 13 to 15 are schematic sectioned side elevations of the blank of Figure 3 and the various stages of manufacture to transform the blank to a partly finished connector portion;
  • Figures 16 to 18 are schematic side elevations of the blank of
  • Figures 19 to 21 are schematic sectioned side elevations of the blank of Figure 11, and the various stages of manufacture to transform the blank to a partly finished connector portion;
  • Figure 22 is a schematically sectioned side elevation of a
  • Figure 23 is a schematic side elevation of the connector pair and pipe sections of Figure 22;
  • Figure 24 is a schematic sectioned side elevation of a further connector pair
  • Figure 25 is a schematic sectioned side elevation of a flange
  • Figure 26 is a schematic sectioned side elevation of a gear wheel
  • Figure 27 is a schematic sectioned side elevation of a wheel
  • Figure 28 is a schematic sectioned side elevation of a bearing race
  • Figure 29 is a schematic sectioned side elevation of a slew ring
  • Figure 30 is a schematic sectioned side elevation of a crusher ring.
  • the finished female blank 10 is of an annular configuration having a generally cylindrical outer surface 11 and an internal surface 12 radially tapering to a neck 13.
  • the internal surface 12 is threaded or profiled to engage the threaded or profiled portion to be formed on the male connector portion 14 of Figures 4 and 6.
  • the surface 12 surrounds a central longitudinally extending passage 15 within which the connector portion 14 is located when the portions 10 and 14 are connected.
  • the female portion blank 10 is formed from a cylindrical member 16 of relatively ductile steel which is easy to weld, such as mild steel.
  • the member 16 is drilled or punched to have a central passage 17 so that the member 16 is then of a generally torroidal configuration.
  • the Insert 18 is pressed into the passage 17 to form an assembled initial blank 24.
  • the Insert 18 is formed of a relatively strong material, such as an alloy steel or stainless steel, which when threaded or profiled will have sufficient strength to withstand the forces transmitted between the joined connector portions formed from the finished blanks 10 and 14.
  • the Initial blank 18 is deformed to the shape illustrated in Figure 1(E) and Figure 2(E). More particularly, a punch is forced through the insert 18 forging together the remainder of the insert 18 and the member 16. A central passage 19 is then formed.
  • an interim blank 20 is formed with the member 16 Internally lined with the stronger material provided by the insert 18.
  • the interim blank 20 is ring rolled by the co-operation of shaped mandrils and rolls to the configuration illustrated in Figures 3 and 5.
  • the interim blank 20 is now formed with a neck 13.
  • the insert 18 now provides a lining to the interior surface of the member 16, and is subsequently threaded or profiled for co-operation withthe male connector portion 14.
  • the male connector portion finished blank 14 is formed by a substantially similar process used to manufacture the finished female connector blank 10. However, the softer more ductile material is located around a central passage 21 and the stronger material, to be threaded or profiled, lines the inner material and provides the outer surface 22. The surface portion 23 is adapted to be threaded or profiled, and to engage the female connector portion.
  • a female or male portion blank 30 is illustrated having a first metal layer 31 of a relatively ductile metal such as mild steel.
  • a second layer 32 of stronger metal such as an alloy steel or stainless steel.
  • the layer 32 is positioned within a passage formed in the layer 31, while in the embodiments of Figures 8 and 10, the layer 32 overlays the layer 31.
  • the layer 32 has an entrant portion 33 extending into the layer 31.
  • the female or male portion blanks 40 include a first layer 41 of a ductile metal such as mild steel, a second layer 42 of a stronger metal such as an alloy steel or stainless steel, and a third layer 43 of corrosion resistant metal, such as inconel.
  • the layer 42 would have a projecting portion 44 of generally cylindrical
  • the layer 43 would be of torroidal configuration.
  • the projecting portion 44 extends through the layer 41, while in the embodiment of Figure 11, the projecting portion 44 extends only partly into the layer 41.
  • FIG. 12 there is schematically depicted a blank portion 50 already deformed by the punch.
  • a central passage 51 is formed and the various layers 52 to 56 plastically deform so as to extend axially of the female portion blank 50.
  • the layers 52 to 56 could be of a variety of materials including ductile, stronger materials and corrosion resistant materials.
  • the blanks 30,40 advantageous to heat the blanks 30,40 to a temperature within the range of 850°C to 1300°C. However it is also possible to forge the blank 30, at lower temperatures. It is even possible to cold forge the blank 30,40. It may also be advantageous to coat the mating surfaces between the layers with a metal such as nickel. As a still further modification a weld bead could follow the periphery of the junction between the mating surfaces so as to hold them together in contact and seal the mating surfaces from atmosphere. As a still further modification, the use of a weld could be eliminated if the surfaces closely mate.
  • the blanks 30,40 could be heated and placed in a press to provide an initial bond between the layers prior to being subjected to the forging process.
  • the blanks 40 would be preferably raised to a temperature of 925°C to 1260°C.
  • FIG. 1-3 to 15 wherein the blank 30 is again illustrated.
  • the blank 30 would be forged so that the layers 31 and 32 at their interface would become forge welded so as to be integrally bonded.
  • the layer 32 has been deformed so as to line a significant portion of the passage 33.
  • the blank 30 is then machined to provide a semi-finished article as best seen in Figure 15.
  • Figures 16 to 18 the blank 30 is deformed by forcing the layer 32 longitudinally through the blank 13 to line the longitudinal passage 33. Again the blank 30 would be machined to provide a semi-finished article as best seen In Figure 18.
  • the blank 40 is deformed by the punch so that the layers 42 and 43 extend longitudinally through the blank 40.
  • the blank 40 would then be machined to provide a semi-finished article as seen in Figure 21.
  • the female connector eventually provided has a corrosion resistant portion provided by the layer 43.
  • the stronger material is intended to be threaded or profiled to provide a good mechanical coupling between the male and female connectors.
  • the ductile material is intended to be welded to a length of pipe.
  • the radially inner layer 32 is co-extensive and co-axial with respect to the radially outer layer 33.
  • the inner layer 32 (Figure 17) Is initially co-extensive and co-axial with respect to the outer layer 31, however after machining ( Figure 18) the layer 31 nad 32 are only co-axial.
  • the layers 41, 42 and 43 are initially ( Figure 20) generally co-extensive and co-axial, however they are machined to be only co-axial ( Figure 21).
  • the layer 43 ( Figure 21) is spaced axially from the layer 42, after machining.
  • FIGS 22 and 23 there is schematically depicted a connector pair 50 connecting two lengths of pipe 50 and 51.
  • the connector pair 50 Includes a female connector portion 52, and a male connector portion 53.
  • Each connector portion 52 and 53 includes a ductile metal section 57 welded to an associated length of pipe 50 or 51 by means of a weld 58.
  • Each section 57 is forge connected to a stronger section 54, which in turn is forge connected to a corrosion resistant section 56.
  • the corrosion resistant sections 56 co-operate to sealingly connect the connector portions 52 and 53.
  • the sections 54 may snap engage or may threadably engage to retain the connector portions 52 and 53 connected.
  • the connector pair 60 include a female connector portion 61 and a male connector portion 62.
  • Each connector portion 61 and 62 includes a section 63 of a ductile metal welded to a length of pipe 64 by means of a weld 65.
  • Each connector portion 61 and 62 further includes a section 66 of stronger metal which may be threaded or otherwise profiled so that the sections 66 threadably or snap engage to secure the connector portions 61 and 62 together.
  • Each connector portion 61 and 62 further Includes a corrosion resistant section 67 which engage to sealingly connect the connector portions 61 and 62.
  • the Items 60 are manufactured so as to have concentric sections 61 and 62, with the section 61 being formed from a stronger metal, and the section 62 from a more ductile metal.
  • one of the layers may be corrosion resistant material.
  • additional layers may be incorporated as discussed previously.
  • the punch member used to form the forged product may have a circular transverse cross-section. However other cross-sections are contemplated, such as hexagonal and octagonal, where the punch has a number of longitudinal sides. Accordingly the punch forms generally annular sections surrounding the punch when it plastically deforms the layers and forms an aperture therein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

On décrit des éléments de raccord mâle ou femelle (52, 53) d'un raccord (50) composé de parties annualaires (52, 53, 54, 56)qui sont reliées par forgeage pour en faire une structure stratifiée. Les éléments de raccord (52, 53) sont formés à partir de couches de métal, déformées par un poinçon de forgeage.
PCT/AU1992/000146 1991-04-05 1992-04-06 Raccords pour tubes de cuvelage WO1992017730A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK5491 1991-04-05
AUPK549191 1991-04-05

Publications (1)

Publication Number Publication Date
WO1992017730A1 true WO1992017730A1 (fr) 1992-10-15

Family

ID=3775327

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000146 WO1992017730A1 (fr) 1991-04-05 1992-04-06 Raccords pour tubes de cuvelage

Country Status (1)

Country Link
WO (1) WO1992017730A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003071088A1 (fr) * 2002-02-21 2003-08-28 Sandvik Ab Element de forage permettant de forer des roches et son procede de fabrication
EP3117066B1 (fr) * 2014-06-16 2020-09-09 Halliburton Energy Services, Inc. Ensemble manchon de tubage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1771620A (en) * 1926-04-19 1930-07-29 Bosch Robert Process of forming compound metal bodies
GB559498A (en) * 1942-05-22 1944-02-22 Mills Summers J Improvements in the manufacture of soft metal articles having a sheath of hard wear-resisting metal
GB852681A (en) * 1957-08-22 1960-10-26 George Wynn Gibling Pipe connectors
GB1230488A (fr) * 1968-02-28 1971-05-05
US3854760A (en) * 1972-02-25 1974-12-17 Vallourec Joint for oil well drilling pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1771620A (en) * 1926-04-19 1930-07-29 Bosch Robert Process of forming compound metal bodies
GB559498A (en) * 1942-05-22 1944-02-22 Mills Summers J Improvements in the manufacture of soft metal articles having a sheath of hard wear-resisting metal
GB852681A (en) * 1957-08-22 1960-10-26 George Wynn Gibling Pipe connectors
GB1230488A (fr) * 1968-02-28 1971-05-05
US3854760A (en) * 1972-02-25 1974-12-17 Vallourec Joint for oil well drilling pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003071088A1 (fr) * 2002-02-21 2003-08-28 Sandvik Ab Element de forage permettant de forer des roches et son procede de fabrication
US7182159B2 (en) 2002-02-21 2007-02-27 Sandvik Intellectual Property Ab Drill member for rock drilling and a method for manufacturing the drill member
KR100976756B1 (ko) * 2002-02-21 2010-08-18 산드빅 인터렉츄얼 프로퍼티 에이비 암반 드릴링용 드릴부재 및 드릴부재의 제작 방법
EP3117066B1 (fr) * 2014-06-16 2020-09-09 Halliburton Energy Services, Inc. Ensemble manchon de tubage

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