WO2000057020A1 - Raccord de tuyauterie et tronçon de tuyauterie a raccords auxiliaires - Google Patents

Raccord de tuyauterie et tronçon de tuyauterie a raccords auxiliaires Download PDF

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Publication number
WO2000057020A1
WO2000057020A1 PCT/NL1999/000158 NL9900158W WO0057020A1 WO 2000057020 A1 WO2000057020 A1 WO 2000057020A1 NL 9900158 W NL9900158 W NL 9900158W WO 0057020 A1 WO0057020 A1 WO 0057020A1
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WO
WIPO (PCT)
Prior art keywords
coupling
members
pipe
portions
connecting members
Prior art date
Application number
PCT/NL1999/000158
Other languages
English (en)
Inventor
Arno Van Mourik
Original Assignee
Well Engineering Partners B.V.
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 Well Engineering Partners B.V. filed Critical Well Engineering Partners B.V.
Priority to PCT/NL1999/000158 priority Critical patent/WO2000057020A1/fr
Priority to AU29642/99A priority patent/AU2964299A/en
Publication of WO2000057020A1 publication Critical patent/WO2000057020A1/fr

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Classifications

    • 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
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • 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
    • E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
    • 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
    • E21B17/18—Pipes provided with plural fluid passages

Definitions

  • TITLE Pipe coupling and pipe section with auxiliary connections
  • the invention relates to a pipe coupling according to the introductory portion of claim 1 and to a pipe section according to the introductory portion of claim 12.
  • a pipe coupling according to the introductory portion of claim 1 and to a pipe section according to the introductory portion of claim 12.
  • Such a coupling and such a pipe section are disclosed in U.S. patent 3,879,097.
  • a rotary drilling system In drilling for hydrocarbons and other subterranean resources, generally a rotary drilling system is used in which a drill string is composed of pipe sections which are successively linked to form a string of stepwise increasing length which is inserted into a bore hole.
  • the pipe string In as far as the bore hole is in the course of being drilled, the pipe string is lowered gradually into the bore hole as drilling progresses. Furthermore, a drill string has to be removed out of the bore hole and reintroduced into the bore hole several times which involves disconnecting and again connecting pipe sections forming the drill string.
  • Other pipe strings which are being inserted into a bore hole are casing strings lining a bore hole and production pipe strings for transporting fluids to be produced to the earth's surface.
  • the pipe sections each have a threaded, conical pin at one end and a threaded box of a corresponding shape and size at the opposite end. Subsequent pipe sections are connected to each other by stabbing the pin of a subsequent pipe section into the box of an upper pipe section of a pipe string and screwing the pin into the box with a make up torque.
  • connecting two pipe sections requires careful positioning of the pin into the box to avoid damage to the threads, 5 to 10 complete rotations of the pin relative to the box and accurate control of the make-up torque which is applied.
  • a pipe string suspended in a bore hole typically contains a conduit for guiding drilling fluid - often called "mud" - down to a drill bit at a remote end of a drill string or production fluid, such as oil or gas, up from the remote end of a production pipe up to facilities at the surface end of the well.
  • drilling fluid often called "mud" - down to a drill bit at a remote end of a drill string or production fluid, such as oil or gas, up from the remote end of a production pipe up to facilities at the surface end of the well.
  • a drill string with auxiliary transport lines for transporting for instance electronic data signals or electric power for controlling, supporting or enhancing processes at the lower end of the bore hole.
  • One known way to provide such an electric conductor along a pipe string in a well is to provide an electric conductor in the form of a hard wire in the central conduit of the pipe string. During tripping, such a wire has to be pulled out of each pipe section which is disconnected from the pipe string and threaded through each pipe section to be added to the pipe string. This is cumbersome and laborious and the wire can easily be damaged. Furthermore, the wire extending in the channel of the pipe string causes additional resistance to fluids flowing through that channel .
  • a disadvantage of such connections is that the space occupied by the contacts reduces the cross section in the coupling available to allow the passage of mud or other fluids. Moreover, the construction of such couplings is complicated. The complexity increases even further with the number of parallel conductors to be integrated in each pipe section.
  • Another problem of such connections is to maintain the contacts isolated and sealed from mud or other fluids and to assure that a proper contact is made between the couplings of two coupling members each time a coupling is made up. This is made difficult because, at least before a coupling is made up, the contacts are exposed to adverse conditions and dirt and it is not feasible to have the contacts cleaned each time before the coupling members of two pipe sections constituting a coupling are brought together.
  • these objects are achieved by providing a pipe coupling according to claim 1. According to another aspect of the invention, these objects are achieved by providing a pipe section according to claim 12.
  • the coupling members include twist limiting abutments cooperating for limiting mutual rotation of the coupling members in make-up sense beyond a predetermined coupled configuration, the orientation of the coupling members relative to each other in the coupled condition is predetermined exactly.
  • the portions of the auxiliary connecting members intended to communicate - which portions are located exclusively in limited circumferential segments of the coupling members - are located in corresponding positions in circumferential sense so that such communication is reliably assured.
  • auxiliary connecting members Since none of the auxiliary connecting members needs to extend around the axis of the coupling, the cross sectional area occupied by the auxiliary connecting members is substantially reduced, the construction of the coupling members can be simplified and sealing the auxiliary connecting members against mud and other fluids is substantially facilitated due to the reduced length of the seal .
  • a particular advantage of the reduced cross-sectional area occupied by the auxiliary connecting members is that it becomes feasible to include a large number of transport lines in a pipe string, not only for transporting electric signals and electric power, but also for example for transporting data in the form of light signals along a fiber-optic transport line, for transporting hydraulic or pneumatic power and for transporting gasses and liquids for supporting or enhancing processes in the bore hole along the pipe string.
  • Fig. 1 is a view in central longitudinal cross-section of a pipe section according to an embodiment of the invention
  • Fig. 2 is an enlarged view in central longitudinal cross-section of one end portion of the pipe section according to Fig. 1;
  • Fig. 3 is an enlarged view in central longitudinal cross-section of an opposite end portion of the pipe section according to Fig. 1;
  • Fig. 4 is a side view of the pipe section end portion shown in Fig. 3, ;
  • Fig. 5 is a view according to Fig. 1 of a pipe section according to an alternative embodiment of the invention.
  • Fig. 6 is an enlarged view in central longitudinal cross-section of a central portion of the pipe section according to Fig. 1;
  • Fig. 7 is an enlarged view in central longitudinal cross-section of one end portion of the pipe section according to Fig. 5;
  • Fig. 8 is an enlarged view in central longitudinal cross-section of an opposite end portion of the pipe section according to Fig. 5;
  • Fig. 9 is a view in axial cross-section through teeth and abutments of portions of coupling members of yet another embodiment of the invention coupled to each other.
  • the coupling shown in Figs. 1-4 is composed of a first coupling member 1 and a second coupling member 51. Both coupling members 1, 51 are provided with an axial bore 11, 61 with opposite open ends. When the coupling members 1, 51 are in connected condition, the bores 11, 61 are in line and define a conduit traversing the coupling. The bores 11, 61 form portions of a central channel 111 of a pipe section 101 of which the coupling members 1, 51 form end portions.
  • the first coupling member 1 has a base portion 2 and a pin 3 projecting in axial direction from the base portion 2.
  • the other end of the base portion 2 is welded at weld 103 to a tube portion 102 of the pipe section.
  • the coupling member 1 can also be attached to another device of a generally cylindrical or at least elongated shape such as a connecting portion of a tool.
  • the distal end of the base portion 2 forms a shoulder 7.
  • the pin 3 is provided with three axially extending columns of thread portions in the form of teeth 4, 5, 6.
  • the number of columns is preferably three as is shown. If the number of columns would be two, this would entail high peak load near the beginning and the end of each tooth. A larger number of slots would generally make the coupling more vulnerable to damage and wear and reduce the angle over which the coupling can be twisted to bring teeth and counter teeth opposite to each other. Nevertheless, in principle other numbers of columns can be provided as well.
  • each one of the columns comprises nine teeth 20-28. In other situations, depending on the load to be transferred and the diameter and material of the coupling, other numbers of teeth may be more suitable. It is noted that, in the present example, the teeth 20-28 of successive columns of teeth 4-6 do not form spaced apart portions of the same thread.
  • the teeth do form spaced apart portions of the same thread.
  • the coupling members can then for instance be manufactured by first cutting the helical thread and then cutting the axially extending slots.
  • the second coupling member 51 has a housing 52 of which a proximal end is connected to the tube 102 along a weld 104.
  • the housing 52 has a box 53.
  • the box 53 On its inner circumference, the box 53 carries three axially extending columns of teeth 70-78 of which two columns 54 and 55 are visible in Fig. 2.
  • the columns 54, 55 define slots 59 of which the width and the depth corresponds to the width (in circumferential sense) and the height (in radial sense) of the teeth 20-28 of the pin 3. In Fig. 2, only one of these slots 59 is visible.
  • the distal end surface of the housing 52 forms a sealing surface 57 which is pressed against the shoulder 7 of the first coupling member 1 when the coupling members 1, 51 are in connected condition.
  • the pressure of the sealing surface 57 against the shoulder 7 is obtained by pre-stress generated by mutually engaging teeth 20-28 and 70-78 when the coupling has been made up.
  • the sealing which is obtained is a metal-to-metal seal forming a gastight "premium connection" .
  • the teeth 20-28 of the columns 4, 5, 6 of the pin 3 are arcuately shaped and protrude radially outward from the circumference of the pin 3.
  • Each of the teeth 20-28 has an engagement surface 29 facing away from the free end of the pin 3.
  • the engagement surfaces 29 are inclined at angles ⁇ with respect to a plane 30 perpendicular to the axis of the pin 3.
  • each one of the counter teeth 79 of the box 53 has an engagement surface 79 sloping at the same angle ⁇ to a plane perpendicular to the axis of the box 53.
  • the coupling members 1, 51 are axially aligned, the free (distal) end of the pin 3 facing the open end of the box 53.
  • the pin 3 and the box 53 are aligned such that the columns 4, 5, 6 of teeth 20-28 are in alignment with slots 59 between the columns 54, 55 of teeth 70-78 of the box 53 .
  • the orientations of the coupling members 1, 51 shown in Figs. 2 and 3 does not correspond to the alignment before stabbing.
  • the alignment shown in Figs. 2 and 3 according to which the columns 4, 5, 6 of the pin 3 and the columns 54, 55 of the box 53 are aligned with each other would essentially correspond to the rotational alignment in connected condition.
  • the pin 3 is stabbed into the box 53 until the shoulder 7 at the base of the pin 3 meets the sealing face 57 around the open end of the box 53. It is also possible, to dimension the' coupling members 1, 51 such that during stabbing, sloping surfaces of twist limiting protrusions 35, 85 meet each other and cause relative rotation of the coupling members 1, 51 in make up sense to be initiated.
  • the pin 3 is rotated relative to the box 53, in make up sense (in this example in a clockwise sense) , causing, the teeth 20-28 of the pin 3 to engage the counter teeth 70-78 of the box 53. Due to the sloping angles ⁇ of the engagement surfaces 29, 79, the pin 3 is pulled into the box 53, completing the make-up of the coupling and causing the surfaces 7 and 57 to be pressed into a sealing contact.
  • the coupling can be disconnected by applying a torque in the sense opposite to the make-up torque. Seen in transverse cross-section the teeth 20-28 and counter teeth 70-78 are slightly tapered from the base of the tooth connected to the pin 3 towards the free end.
  • teeth and counter teeth such as for example triangular, curved or sinusoidal cross-sections could be provided as well.
  • the teeth of each column 4, 5, 6 and 54, 55 have mutually different dimensions in accordance with loads transferred through the teeth 20-28 or counter teeth 70-78 in connected condition.
  • the counter teeth 70-78 on the inner surface of the box 53 have widths, heights, spacings and lengths essentially corresponding to the widths, heights, spacings and lengths of the teeth 20-28 of the pin 3 engaging these teeth when in connected condition, such that the teeth of the pin 3 and the box 53 can engage each other. If the actual distribution of loads over the teeth is different, or if a less accurate adaptation of the size of the teeth to the loads applied thereto is sufficient, other distributions of the sizes of the teeth can be selected accordingly. Such a situation occurs for example if, instead of a single seal at the base of the pin 3, a double seal in which the distal end of the pin is pressed in sealing contact with a shoulder in the box is provided.
  • seals brings about a different axial distribution of loads over the pin and the box and would therefore preferably be combined with a different distribution of the sizes of the teeth. It is observed that, alternatively or in addition, one or more seals can also be located in other positions, such as between the proximal and the distal end of the pin.
  • the coupling members 1, 51 are each provided with abutment surfaces 35, 85.
  • the abutment surfaces 35, 85 contact each other when the coupling members have reached the coupled condition and limit rotation of the first coupling member 1 relative to the second coupling member 51 in make-up sense beyond a predetermined, coupled configuration.
  • twist limiting abutments 35, 85 ensure that the relative rotational positions of the coupling members 1, 51 in coupled condition is controlled very accurately.
  • the coupling members 1, 51 are provided with auxiliary connecting members 16, 66.
  • end portions 17, 67 of the auxiliary connecting members 16, 67 communicate with each other.
  • These end portions 17, 67 are each located exclusively in very limited circumferential segments of the coupling members 1, 51 and thereby occupy very little cross-sectional area of the coupling.
  • the auxiliary connecting members 16, 66 are formed by conduits extending through protrusions formed by the abutments 35, 85.
  • the auxiliary connecting members can also have other forms, such as the form of electric or fiber-optic conductors.
  • auxiliary connecting members 16, 66 do not have to be adapted to cooperate for communication in different circumferential positions relative to each other, the auxiliary connecting members 16, 66 are very suitable for the transport of fluids and optic signals.
  • the auxiliary connecting members 16, 66 are connected to opposite ends of transport lines 116, 117, 118 and form connections to transport lines of a next successive or previous pipe section when the coupling members of the respective pipe sections are in coupled condition. Since the thread portions of the coupling members 1, 51 are arranged in a plurality of circumferentially distributed axially extending columns 4-6, 54, 55 defining slots 9, 10, 59 between these columns dimensioned to allow the axial passage of the teeth 20-28, 70-78 of the other coupling member 1, 51, a connection can be made very quickly by stabbing the pin 3 into the box 53 and twisting one of the coupling members 1, 51 over about one sixth of a turn relative to the coupling member toe be connected thereto.
  • the coupling members 1, 51 are rotated relative to each other over a fraction of a full turn only, different connecting members 16, 66 for different media can be provided in different positions in circumferential sense of the pin 3 and the box 53, as is shown in the present example, while it is avoided that the connecting members 16, 66 pass connecting members for transporting different media when the coupling is made up.
  • the connecting members can be arranged to engage upon twisting relative movement of the coupling members instead of due to axial movement of the coupling members 1, 51 as in conventional couplings.
  • the twisting movement of the connecting members 16, 66 during make up of the coupling covers a larger trajectory than the axial movement. Therefore it can be ensured more reliably that the required communication between the connecting members is established and that dirt and the like does not interfere with communication between the connecting members 16, 66 when the coupling is made up.
  • the portions 17, 67 to be connected of the connecting members 16, 66 can reliably be brought in communicating positions while the coupling members 1, 51 are twisted relative to each other in make up sense until the abutments 35, 85 meet each other, the portions 17, 67 of the auxiliary connecting members 16, 66 communicating in the coupled condition are carried by protrusions of the coupling members 1, 51.
  • the protrusions carrying the connecting members are obtained in a constructively efficient manner, because the protrusions each form one of the twist limiting abutments 35, 85.
  • the coupling Since the coupling according to the present example has three of the protrusions each carrying one of the portions 17, 67 of the auxiliary connecting members 16, 66 communicating in the coupled condition, the coupling is provided with three auxiliary connections which are reliably separated from each other to avoid interference between signals and/or media transported through these connections.
  • the protrusions 35, 85 not all of the protrusions 35, 85 have to be occupied by connecting portions 17, 67 of connecting members, if the number of connections is lower than the number of protrusions 35, 85 on the pin 3 or the box 53. It is also possible to provide that one or more of the protrusions 35, 85 do each carry more than one connecting member. This allows to provide a number of auxiliary connections which is larger than the number of protrusions on the pin 3 or the box 53.
  • the twist limiting abutments 35, 85 include abutment surfaces 36, 86 facing each other in essentially circumferential sense of the coupling members 1, 51 and being in contact with each other when the coupling members 1, 51 are in the coupled condition, so that the relative rotational position of the coupling members 1, 51 in the coupled condition is controlled particularly accurately and to a large extent independent of the magnitude of the make up torque and torques in make up sense which are transferred by the coupling in operation.
  • the communicating portions 17, 67 of the auxiliary connecting members 16, 66 communicate across the abutment surfaces 36, 86, since it is ensured that these surfaces 36, 86 are in contact with each other when the coupling has been made up.
  • the contacting abutment surfaces 36, 86 can also serve as a sealing of the connecting members 16, 66 when the coupling is in coupled condition.
  • Another advantage of the connecting members 16, 66 communicating across the abutment surface 36, 86 is that the risk of damaging the connecting members during stabbing is reduced, since contact between the connecting members 16, 66 of the coupling members 1, 51 is made only after the coupling members have been rotated relative to each other in make up sense.
  • the coupling members each include more than one pair of the twist limiting abutment surfaces 36, 86 provides the advantage that transverse forces exerted between the contacting pairs of abutment surfaces 36, 86 can cancel each other out and that the loads of the make up torque are distributed over a plurality of abutments. This in turn allows to provide smaller abutments, and thereby more room for the main channel, and brings about a more even distribution of loads over the coupling. Since, in the coupled condition, the auxiliary connecting members 16, 66 communicate across different pairs of the abutment surfaces 36, 86 contacting each other, the different connecting members 16, 66 are reliably separated from each other.
  • the coupling members 1, 51 can be formed such that stabbing is possible only if the coupling members 1, 51 are in a predetermined relative orientation about the longitudinal axis thereof.
  • the portions 17, 67 of the connecting members 16, 66 communicating with each other when the coupling is in the coupled condition face in circumferential sense of the coupling members 1, 51 so that these communicating portions 17, 67 are made to contact when the coupling members 1, 51 are twisted in make up sense.
  • the abutment surfaces from which connecting members project should preferably be recessed relative to the columns of teeth to avoid that the connecting member can hit the teeth of the other coupling member when the pin of one coupling member is stabbed in the box of the other coupling member . Since the twist limiting abutments 35, 86 are integrally formed with the pin 3 and the box 53, a particularly strong construction is obtained.
  • the main channel 111 of the tube portion 102 of the pipe section 101 is bounded by a wall consisting of a load bearing tube 105 and a lining 106.
  • the auxiliary transport line sections 116, 117, 118 are embedded in the lining 106 of the wall.
  • auxiliary transport line sections 116, 117, 118 are embedded in the wall, the flow of fluids through the main channel 111 is not disturbed as in a situation in which the transport line extends freely within the channel and erosion of the wall or the lining of the wall due to unevenness of the wall surface bounding the channel is avoided. Such unevenness occurs for instance if the auxiliary transport lines are covered by a flexible liner as is for instance known from U.S. patent 4,445,734.
  • the feature of embedding at least one auxiliary transport line section in a wall of a main channel (or in a layer of that wall) bounded by that wall can also be applied advantageously in combination with conventional couplings.
  • the coupling members are not provided with twist limiting abutment members (other than the axially facing sealing surfaces) and connecting members on both coupling members which are restricted to limited circumferential segments of the coupling members.
  • a less disturbed flow and reduced erosion are achieved as well.
  • the auxiliary transport line sections 116, 117, 118 are embedded in the lining 106.
  • Such a construction can be obtained adding the lining to an existing tube such as a steel tube which can be connected to the coupling members 1, 51 in a conventional manner.
  • the auxiliary transport line sections 116, 117, 118 extend along the pipe section in the form of a helix, which facilitates embedding the transport lines in the material of the lining and reduces the risk of fracturing of the transport lines in the event of flexing of the tube 102.
  • the transport lines can also extend parallel to the longitudinal direction of the pipe string or at a substantially more or less steep angle.
  • FIGs. 5-8 an alternative, presently most preferred embodiment of a pipe section 301 according to the invention is shown.
  • the coupling members 201, 251 have end portions which are in most respects identical to the end portions of the coupling members 1, 51 and therefore not described in detail.
  • the coupling members 201, 251 are connected to opposite ends of a tube portion 302 having a load bearing wall structure 305 made out of composite material.
  • the composite material forms an outer sleeve about the socket portions 208, 258 of the coupling members 201, 251.
  • the socket portions 208, 258 have structured circumferences to ensure sufficient adherence of the tube portion 302 to the socket portions 208, 258 of the coupling members 201, 251. It is observed that many other measures for enhancing the connection between composite materials and metal are known and can be applied as well.
  • the connecting members 216, 266 extend from the portions 217, 267 for communication with other connecting members 266, 216 to the socket portions 208, 258 of the coupling members 201, 251 remote from the ends of the pipe section, where the connecting members 216, 266 are connected to the ends of auxiliary transport line sections 316 terminating at the sockets 208, 258.
  • the auxiliary transport line section 316 are embedded in the load bearing wall structure of the tube portion 302. This provides the advantage, that a particularly thin wall having integrated auxiliary transport lines 316 can be provided.
  • the auxiliary transport lines 316 are embedded in a helical configuration, which preferably corresponds to the helical configuration of fibers of the composite wall structure which allows to embed the auxiliary transport lines 316 in matrix material of the tube portion 302 with minimal adverse effects on the strength and durability of the tube portion 302.
  • the connecting members can be arranged in protrusions separate from the twist limiting abutments. This is schematically illustrated in Fig. 9.
  • the coupling members 401, 451 have connecting protrusions 437, 487 carrying the connecting members 416, 466 and connecting portions 417, 467 thereof. These connecting protrusions 437, 487 are separate from protrusions 435, 485 forming the twist limiting abutments.
  • the connecting protrusions 437, 487 are positioned such that the portion 467 of one of the connecting members 466, which forms a seal, is slightly compressed between the protrusions 437, 487 so that the connecting members 416, 466 are in sealing contact with each other.
  • the connecting members are for instance adapted for conducting electric currents, the contacting portions of the connecting members can for instance include flexible contact members instead of or in addition to a seal.
  • transport lines can be embedded in a liner of a tube having a load bearing wall made of composite material.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

Un raccord de tuyauterie pour une colonne de tubes s'étendant dans un trou de sondage souterrain, comporte une paire d'éléments de raccordement (1, 51; 201, 251; 401, 451) comportant des parties filetées pour générer une force axiale si les éléments de raccordement (1, 51; 201, 251; 401, 451) sont mis en torsion les uns par rapports aux autres dans le sens du vissage. Les éléments de raccordement (1, 51; 201, 251; 401, 451) comprennent également des éléments de raccordement auxiliaires (16, 66; 216, 266; 416, 466) pour le raccordement de canalisations d'amenée auxiliaires. Etant donné que les éléments de raccordement (1, 51; 201, 251; 401, 451) comportent des butées de limitation de torsion (35, 85; 435, 485) pour limiter la rotation mutuelle des éléments de raccordement (1, 51; 201, 251; 401, 451) dans le sens du vissage au-delà de la configuration raccordée et que les éléments de raccordement auxiliaires (16, 66; 216, 266; 416, 466) communiquant à l'état raccordé sont situés exclusivement dans des segments circonférentiels limités des éléments de raccordement (1, 51; 201, 251; 401, 451), une liaison fiable entre les éléments de raccordement (16, 66; 216, 266; 416, 466), qui occupe seulement une petite section du raccord est obtenue.
PCT/NL1999/000158 1999-03-22 1999-03-22 Raccord de tuyauterie et tronçon de tuyauterie a raccords auxiliaires WO2000057020A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/NL1999/000158 WO2000057020A1 (fr) 1999-03-22 1999-03-22 Raccord de tuyauterie et tronçon de tuyauterie a raccords auxiliaires
AU29642/99A AU2964299A (en) 1999-03-22 1999-03-22 Pipe coupling and pipe section with auxiliary connections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL1999/000158 WO2000057020A1 (fr) 1999-03-22 1999-03-22 Raccord de tuyauterie et tronçon de tuyauterie a raccords auxiliaires

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Cited By (6)

* Cited by examiner, † Cited by third party
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WO2004044379A2 (fr) * 2002-11-11 2004-05-27 Baker Hughes Incorporated Procede et appareil pour faciliter une connexion de ligne de commande humide ou seche dans un environnement de fond
WO2005040547A1 (fr) * 2003-10-14 2005-05-06 Specialised Petroleum Services Group Limited Raccord de fond
EP1762695A1 (fr) * 2005-09-13 2007-03-14 Weatherford/Lamb Inc. Dispositif antirotation activé par expansion
FR2941260A1 (fr) * 2009-01-21 2010-07-23 Intelliserv Inc Appareil et procede de verification de la transmission de signaux dans des tiges cablees
GB2521371A (en) * 2013-12-17 2015-06-24 Statoil Petroleum As Optical connector
CN110121604A (zh) * 2017-12-06 2019-08-13 江阴振宏重型锻造有限公司 一种设有防护层的风力发电机主轴及其防护层附着工艺

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Publication number Priority date Publication date Assignee Title
US2178931A (en) * 1937-04-03 1939-11-07 Phillips Petroleum Co Combination fluid conduit and electrical conductor
US3879097A (en) * 1974-01-25 1975-04-22 Continental Oil Co Electrical connectors for telemetering drill strings

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2178931A (en) * 1937-04-03 1939-11-07 Phillips Petroleum Co Combination fluid conduit and electrical conductor
US3879097A (en) * 1974-01-25 1975-04-22 Continental Oil Co Electrical connectors for telemetering drill strings

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2410763B (en) * 2002-11-11 2007-05-30 Baker Hughes Inc Method and apparatus to facilitate wet or dry control line connection for the downhole environment
WO2004044379A3 (fr) * 2002-11-11 2004-07-15 Baker Hughes Inc Procede et appareil pour faciliter une connexion de ligne de commande humide ou seche dans un environnement de fond
US7487830B2 (en) 2002-11-11 2009-02-10 Baker Hughes Incorporated Method and apparatus to facilitate wet or dry control line connection for the downhole environment
GB2410763A (en) * 2002-11-11 2005-08-10 Baker Hughes Inc Downhole hydraulic control line connector
WO2004044379A2 (fr) * 2002-11-11 2004-05-27 Baker Hughes Incorporated Procede et appareil pour faciliter une connexion de ligne de commande humide ou seche dans un environnement de fond
GB2422865A (en) * 2003-10-14 2006-08-09 Specialised Petroleum Serv Ltd Downhole connector
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WO2005040547A1 (fr) * 2003-10-14 2005-05-06 Specialised Petroleum Services Group Limited Raccord de fond
US7654316B2 (en) 2003-10-14 2010-02-02 Specialised Petroleum Services Group Limited Downhole connector
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US7591059B2 (en) 2005-09-13 2009-09-22 Weatherford/Lamb, Inc. Expansion activated anti-rotation device
FR2941260A1 (fr) * 2009-01-21 2010-07-23 Intelliserv Inc Appareil et procede de verification de la transmission de signaux dans des tiges cablees
GB2521371A (en) * 2013-12-17 2015-06-24 Statoil Petroleum As Optical connector
US9709768B2 (en) 2013-12-17 2017-07-18 Statoil Petroleum As Optical connector
GB2521371B (en) * 2013-12-17 2018-05-09 Statoil Petroleum As Optical connector
CN110121604A (zh) * 2017-12-06 2019-08-13 江阴振宏重型锻造有限公司 一种设有防护层的风力发电机主轴及其防护层附着工艺

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