EP3882398B1 - Tige de forage et procédé pour mise à niveau d'un agencement de tige carrée - Google Patents

Tige de forage et procédé pour mise à niveau d'un agencement de tige carrée Download PDF

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Publication number
EP3882398B1
EP3882398B1 EP20163709.7A EP20163709A EP3882398B1 EP 3882398 B1 EP3882398 B1 EP 3882398B1 EP 20163709 A EP20163709 A EP 20163709A EP 3882398 B1 EP3882398 B1 EP 3882398B1
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EP
European Patent Office
Prior art keywords
drill rod
rod
base body
line
kelly
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP20163709.7A
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German (de)
English (en)
Other versions
EP3882398C0 (fr
EP3882398A1 (fr
Inventor
Tobias Siegmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
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 Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP20163709.7A priority Critical patent/EP3882398B1/fr
Priority to CN202180020723.6A priority patent/CN115210429A/zh
Priority to PCT/EP2021/051698 priority patent/WO2021185499A1/fr
Priority to US17/905,817 priority patent/US11927059B2/en
Publication of EP3882398A1 publication Critical patent/EP3882398A1/fr
Application granted granted Critical
Publication of EP3882398C0 publication Critical patent/EP3882398C0/fr
Publication of EP3882398B1 publication Critical patent/EP3882398B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/073—Telescoping joints for varying drill string lengths; Shock absorbers with axial rotation
    • 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
    • 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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/05—Swivel joints
    • 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
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/02—Swivel joints in hose-lines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits

Definitions

  • the invention relates to a drill rod for transmitting torque, having an elongate rod base body, along which runs at least one main line for a fluid and/or electric power and/or data, an upper suspension device for suspending the drill rod from a support element, a rotary bearing which is located between the suspension device and the rod base body, with the rod base body being rotatably mounted about a rod longitudinal axis relative to the suspension device, and a rotary feedthrough, through which a line connection is formed between at least one supply line that is stationary relative to the support element and the at least one main line of the rotatably mounted rod base body, according to the Preamble of claim 1.
  • the invention further relates to a method for retrofitting a Kelly bar assembly with a boring bar according to claim 12.
  • the invention relates to a drill rod which is rotatably mounted on a support element and has a rotary bushing with which a line connection can be established between a fixed supply line and a main line running on the rotatable drill rod.
  • Such a boring bar is from the EP 2 821 585 A1 out.
  • a torque can be introduced directly on the outside of the bar body in the region of the rotary feedthrough.
  • an axial force for example to raise or lower the boring bar, can be absorbed via a carrying cable.
  • the power flow runs directly through a Rod-shaped connecting element from a suspension device on the suspension cable through the rotary feedthrough. This requires a particularly stable design of the rotary feedthrough in order to ensure adequate functionality and tightness of the rotary feedthrough, for example when a hydraulic fluid is passed through, even in long-term, rough construction work.
  • Another generic boring bar is in the JP 2009 299 356 A disclosed.
  • the rotary union and the rotary bearing form a spatial and functional unit.
  • the invention is based on the object of specifying a drill rod and a method for retrofitting a Kelly rod arrangement with which gentle and reliable operation of a drill rod can be achieved in a particularly efficient manner.
  • a basic idea of the invention can be seen in the fact that a rotary feedthrough on the drill rod is largely relieved of an axial flow of force, so that the rotary feedthrough and in particular the seals provided therein can be protected.
  • the rotary bearing has an axial bearing which is arranged above the rotary feedthrough.
  • This axial bearing can thus be used to transmit the entire or at least a substantial part of the axial flow of force from the relatively stationary suspension device to the rod base body, which is rotatable relative thereto. Correspondingly, this relieves the underlying rotating union of this axial force flow.
  • any load changes when raising or lowering the drill string have little or no effect on the components of the rotary feedthrough that can be rotated relative to one another with the seals installed therein.
  • rotary feedthrough due to the spatial and functional separation between the rotary feedthrough and the axial bearing, conventional or simple rotary feedthroughs and axial bearings can be used. This reduces the manufacturing effort and the manufacturing costs. With such a rotary feedthrough, a reliable transmission of a fluid, which can be a liquid or a gas, and of electrical power or data between a stationary element and a rotating element can be ensured.
  • a fluid which can be a liquid or a gas
  • the rotary feedthrough comprises a sleeve-shaped outer part, which is connected to the rod body in a rotationally fixed manner, and an inner part, which is arranged inside the outer part and is connected to the suspension device in a rotationally fixed manner.
  • the sleeve-shaped outer part of the rotary feedthrough could also be connected to a suspension device in a rotationally fixed manner, while the inner part is connected to the rod base body.
  • the ground line and the supply line can be pipes, hoses, current-carrying cables or data-transmitting lines.
  • a particularly compact design is achieved according to the invention in that the inner part of the rotary feedthrough is arranged on a thorn-like section of the suspension device, with the thorn-like section of the suspension device extending downwards through the pivot bearing, which is ring-shaped. This ensures a particularly good decoupling of the power transmission through the axial bearing and a line connection through the rotary feedthrough underneath.
  • the at least one main line can run along an outside of the strand base body.
  • a particularly protected arrangement is achieved according to one embodiment of the drill rod according to the invention in that the rod base is tubular with a central cavity and that the at least one main line is inside the tubular rod base runs. In particular during a drilling operation, the at least one main line is thus arranged in a particularly protected manner.
  • the at least one main line it is also particularly expedient for the at least one main line to open out at a connection plate which is arranged on an upper region of the rod base body.
  • the connection plate represents a defined connection option on the rod base body.
  • a connection plate can also be provided at the lower end of the rod base body for the main line.
  • a connection plate is particularly advantageous if several main lines are provided.
  • connection plate is connected to the sleeve-shaped outer part of the rotary feedthrough, with a line connection being formed between the main line in the rod base body and the feed line on the support element.
  • the connecting plate and the connecting device can be designed in a modular fashion as plug-in components.
  • the connecting plate has a predetermined pattern of line openings, with corresponding openings for connecting lines to the rotary feedthrough being provided on the connecting device.
  • the connecting device comprises a basket-like insert with at least one connecting line.
  • the connecting lines can be designed to be flexible and thus ensure a connection to the rotary feedthrough in an efficient manner.
  • the basket-like insert can have at least one form-fitting element, with which a non-rotatable connection is formed between the connection plate and/or the sleeve-shaped outer part of the rotary feedthrough.
  • the connecting device thus not only establishes a line connection, but also serves as a mechanical connection between the connection plate and the rotary feedthrough.
  • the connecting device can in particular also serve as a type of adapter between the connecting plate on a drill rod and a rotary feedthrough. When changing a rotating union, it can thus be sufficient to change and replace only the connection device accordingly.
  • a preferred embodiment of the invention also consists in the fact that axially directed stop strips for torque transmission run on an outside of the rod base body.
  • the boring bar can be designed in particular as a Kelly bar, in particular as a single Kelly bar or as a Kelly bar for a telescoping Kelly bar arrangement. External torque can be transmitted to the boring bar via the outer stop bars.
  • a plurality of outer drill rod tubes are provided.
  • a multiple Kelly bar arrangement for example with three or four Kelly bar elements, can be formed. Greater drilling depths in particular can be achieved with such a multiple Kelly rod arrangement.
  • a rigid component in particular a rod
  • the support element is a torsionally rigid support cable.
  • the suspension rope can still be wound up on a winch like a conventional suspension rope.
  • the suspension cable is therefore flexible in the longitudinal direction.
  • it is designed to be torsionally rigid in the circumferential direction, so that it can also be provided for absorbing torques.
  • the invention further relates to a drilling device with at least one previously described drill rod or a previously described drill rod assembly, wherein a drilling tool with a line connection is detachably attached to the drill rod.
  • the drilling tool can have at least one actuating component that is actuated with a fluid, such as hydraulic fluid or compressed air.
  • a fluid such as hydraulic fluid or compressed air.
  • This also includes actively driven tools, such as rotary hammers with axially driven lifting rams. Compressed air can also be provided for an air-lift method for removing drill cuttings from the drilling tool.
  • sensors or electrically actuated control elements can also be provided, which have a line connection for the transmission of electrical power and/or data exhibit.
  • the drilling tool can be a drill bucket or a drill auger with corresponding adjustment elements and/or sensors.
  • the invention relates to a method for retrofitting a Kelly bar arrangement, an inner Kelly bar of an existing Kelly bar arrangement being replaced by the boring bar described above.
  • existing Kelly bar arrangements which are usually not provided and designed for the transmission of fluids, electrical power and/or data, can be retrofitted in this regard in a simple and efficient manner. This results in the advantages described above with the boring bar according to the invention.
  • a preferred method variant of the invention is that in a multiple kelly rod arrangement with an inner kelly rod, at least one intermediate kelly tube and an outer kelly tube, the inner kelly rod and possibly at least one intermediate kelly rod are replaced by the drill rod.
  • the inner kelly rod and possibly at least one intermediate kelly rod are replaced by the drill rod.
  • the drill rod For example, in the case of a triple kelly bar, only the inner kelly bar can be replaced, so that a triple kelly bar arrangement with three bar elements is still provided.
  • the intermediate kelly tube and the existing inner kelly rod could also be replaced by an inner kelly rod according to the invention in a triple kelly rod arrangement.
  • a dual kelly rod arrangement would be formed, which would consist only of the existing outer kelly tube and the newly inserted drill rod according to the invention as the inner kelly rod.
  • FIGS Figures 1 and 2 An embodiment of a boring bar 10 according to the invention is shown in FIGS Figures 1 and 2 shown.
  • the drill rod 10 comprises an elongate rod-shaped base body 12 which is tubular with a central cavity 13 .
  • stop strips 14 running in the longitudinal direction for torque transmission are attached, corresponding to a function of an inner kelly rod.
  • a suspension device 20 (only partially shown) is provided at an upper end section of the boring bar 10, while a tool connection device 25 is provided at a lower end section.
  • the workpiece connection device 25 is provided with a square for a so-called Kelly box on a tool.
  • a connection device 60 for a main line 30 is arranged in the area of the suspension device 20 within a tubular housing 27 , which runs longitudinally along the central cavity 13 from the suspension device 20 to the tool connection device 25 and is supported by brackets 15 .
  • the connecting device 60 is described in more detail below.
  • a rod-shaped base body 2 with outer strip-shaped stops 7 is also provided for torque transmission.
  • the inner Kelly bar 1 is also provided with a hanging section 4 at an upper end and a tool connecting portion 5 at a lower end.
  • the base body 2 of the inner kelly bar 1 can also be tubular with a cavity 3, which is used in a conventional inner kelly bar 1 to reduce the weight and otherwise has no function. Consequently, an existing inner kelly 1 can be retrofitted to a drill rod 10 according to the invention relatively easily by replacing the end sections and threading one or more conduits 30 in the body 2 .
  • a Kelly bar assembly 100 in accordance with the present invention having an inner boring bar 10 in accordance with the present invention such as those previously described in connection with FIGS Figures 1 and 2 was described is in figure 5 shown.
  • a first drill pipe 112 forming an intermediate kelly and an outer second drill pipe 114 serving as an outer kelly.
  • the inner drill rod 10 and the second drill pipe 114 and the first drill pipe 112 lying between them can be moved axially relative to one another, so that a telescoping Kelly bar arrangement 100 is formed overall.
  • Torque can be transmitted between the individual Kelly bar elements in a basically known manner via inner and outer stop strips, with locking pockets also being able to be provided for axial locking.
  • a collar-shaped stop ring 116 is attached to the outer second drill pipe 114 and is used to place the Kelly bar arrangement 100 on an upper side of a rotary drive of a drill. Furthermore, in a basically known manner, damping elements 28 made of a rubber material can be provided in a lower area in order to buffer axial shocks between the inner drill rod 10 and the outer drill rod tubes 112 and 114 .
  • main lines 30 run within the central cavity 13 of the tubular rod base body 12 of the boring rod 10. In their lower region, these open into radially directed line connections 2& on the lower tool connection device 25.
  • a soil cultivation tool in particular a boring tool, can be attached here in a rotationally fixed manner via a fundamentally known Kelly connection . Since the connected tool is connected in a rotationally fixed manner, can a corresponding line connection to the line connection 26 which is fixed relative thereto can be effected in a relatively simple manner.
  • the main lines 30 open into a connecting device 60 with connecting lines 68 running therein 7 described in more detail.
  • a rotary feedthrough 40 which has a cup-shaped or sleeve-shaped outer part 42 .
  • the outer part 42 is non-rotatably connected to the connecting device 60 and the rod base body 12 .
  • the rotary feedthrough 40 includes an inner part 44 which protrudes upwards from the outer part 42 and is rotatable relative thereto.
  • Intermediate lines 36 are connected to the inner part 44 and run upwards through the annular pivot bearing 50 to a pin-shaped connection element 21 on which radially directed feed connections 22 for at least one feed line 82 are provided.
  • the peg-shaped suspension element 21 has a transversely directed latch receptacle 23 for a latch bolt, with which the suspension element 21 can be connected to a rope eyelet, not shown, of a suspension rope.
  • the peg-shaped suspension element 21 is thus arranged on a support element so as to be stationary about a longitudinal axis in the direction of rotation.
  • a fluid can also be supplied via the supply connection 22 via supply lines that are also fixed and can thus be routed downwards via the intermediate lines 36 in the direction of the rotary feedthrough 40 .
  • a diameter-enlarged area is formed, which forms a sleeve-like bearing housing 54 of the rotary bearing 50 .
  • An axial bearing 52 is arranged within the bearing housing 54 and is formed by three roller bearings in the exemplary embodiment shown.
  • a tubular inner part 56 is rotatably mounted in the bearing housing 54 via the axial bearing 52 .
  • the inner bearing part 56 is thus relatively rotatable with respect to each other the bearing housing 54 mounted on the mandrel-like suspension element 21 and the internal intermediate lines 36.
  • the lower area of the tubular inner bearing part 56 is provided with a fastening section 58 to which the rod base body 12 is attached in a rotationally fixed manner either directly or via an intermediate element. In this way, a flow of force can take place from the locking bolt via the suspension element 21 via the axial bearing 52 to the inner bearing part 56 rotatable for this purpose with the rod base body 12 firmly attached thereto.
  • Fluid can flow from the feed connection 22 through the intermediate line 36 to the rod base body 12 .
  • the intermediate lines 36 and the feed connections 22 are not only used for feeding a fluid from top to bottom to a tool, but in a corresponding manner also for feeding or returning fluid from the tool back up to a carrier device can serve, for example, when a hydraulic fluid is used as the fluid.
  • the connecting device 60 is arranged, which is shown below according to 7 is explained in more detail.
  • the connecting device 60 has, in particular, a basket-like insert 62 with a base 63 and longitudinal struts 64 extending therefrom in the longitudinal direction, which are stabilized with a ring 65 at their upper end.
  • the main lines 30 in the rod-shaped base body 12 open into a connection plate 18 which is also fixedly arranged in the rod base body 12 and has an annular plug-in socket 19 .
  • a lower area of the base 63 of the basket-like insert 62 with the lower connections 67 can be inserted axially into this, with a line connection being produced between the main lines 30 and the intermediate lines 68 in the connecting device 60 .
  • the upper ends of the connecting lines 68 are firmly attached to the underside of the sleeve-shaped or pot-shaped outer part 42 of the rotary feedthrough 40 .
  • a line connection to the inner part 44 which is rotatable relative to the sleeve-shaped outer part 42 , is established within the rotary feedthrough 40 .
  • the rotary feedthrough 40 can be designed to establish a line connection for a fluid, electrical current and/or data.
  • the outer part 42 of the rotary union 40 is over a locking ring 69 is housed securely in the basket-like insert 62 with the smaller-diameter inner part 44 protruding through the larger-diameter passage in the locking ring 69 .
  • the previously described intermediate lines 36 can be connected to the suspension element 21 on the upper side of the inner part 44 .
  • the connecting device 60 is introduced into the rod-shaped base body 12 by being pushed axially into the latter, a non-rotatable connection with the rod base body 12 being established via form-fitting elements 66 on the base 63, which are designed as radial recesses. For this purpose, corresponding radial projections are provided on the rod body 12, which, however, are not shown in the drawings.
  • a lower end of a boring bar 10 according to the invention having a longitudinal axis 16 is shown in a Kelly bar arrangement 100 .
  • the main lines 30 run within the rod base body 12 and in particular in the central cavity 13 until they open into radially directed line connections 26 in the area of the tool connection device 25 .
  • a line connection 26a on the left-hand side is shown as a fluid connection, while the line connection 26b on the right-hand side is designed as a connection for electrical current or a data line.
  • a fluid flow is shown schematically by a dashed line, while a power flow is indicated by an arrow line.
  • ring-shaped damping elements 28 made of rubber are arranged on the lower end area of the boring bar 10 , which are supported on the one hand at the bottom against the tool connection device 25 and at the top against an attachment ring 29 .
  • a lower end of the first drill pipe 112 and the second drill pipe 114 of the Kelly bar arrangement 100 lie on the attachment ring 29 .
  • a drilling device 70 is shown with a carrier device 71 .
  • the carrier device 71 comprises an upper carriage 72 which is rotatably mounted on an undercarriage 73 which has a crawler chassis.
  • a substantially vertically directed mast 74 is mounted on the superstructure 72, along which a drilling device carriage 75 with a rotary drive 76 is mounted so as to be displaceable.
  • a Kelly bar arrangement 100 according to the invention is suspended via a support element 80 designed as a support cable, which protrudes downwards through the annular rotary drive 76 .
  • a drilling tool (not shown), for example a box drill, can be attached to a tool connection device 25 at a lower end of the Kelly bar arrangement 100 .
  • At least one supply line 82 can be used, for example, to supply hydraulic fluid from the carrier device 71 via the suspension device 20 to the Kelly bar arrangement 100 and thus to an attached drilling tool.

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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)

Claims (13)

  1. Tige de forage destinée à transmettre un couple de rotation avec
    - un corps de base de tige (12) allongé, le long duquel s'étend au moins une ligne principale (30) pour un fluide et/ou un courant électrique et/ou des données,
    - un dispositif de suspension supérieur (20) destiné à suspendre la tige de forage (10) sur un élément de support (80),
    - un palier rotatif (50), lequel est disposé entre le dispositif de suspension (20) et le corps de base de tige (12), le corps de base de tige (12) étant monté de manière à pouvoir tourner autour d'un axe longitudinal de tige par rapport au dispositif de suspension (20), et
    - un passage rotatif (40), à travers lequel une liaison par ligne est formée entre au moins une ligne d'amenée (82) immobile par rapport à l'élément de support (80) et l'au moins une ligne de base (30) du corps de base de tige (12) monté de manière à pouvoir tourner,
    - dans laquelle le palier rotatif (50) présente un palier axial (52), lequel est disposé au-dessus du passage rotatif (40),
    - dans laquelle le passage rotatif (40) et le palier rotatif (50) pourvu du palier axial (52) sont réalisés séparément de manière spatiale et fonctionnelle,
    - dans laquelle le palier rotatif (50) est disposé de manière axialement espacée par rapport au passage rotatif (40),
    dans laquelle le passage rotatif (40) présente une partie externe (42) en forme de douille, laquelle est reliée de manière solidaire en rotation au corps de base de tige (12), et une partie interne (40), laquelle est disposée à l'intérieur de la partie externe (42) et est reliée de manière solidaire en rotation au dispositif de suspension (20), et
    dans laquelle la partie interne (44) du passage rotatif (40) est disposée sur une section de type mandrin du dispositif de suspension (20), la section de type mandrin du dispositif de suspension (20) s'étendant vers le bas à travers le palier rotatif (50) de part en part, lequel est réalisé de manière annulaire.
  2. Tige de forage selon la revendication 1, caractérisée en ce que le corps de base de tige (12) est réalisé de manière tubulaire avec un espace creux central (13), et
    et en ce que l'au moins une ligne de base (30) s'étend à l'intérieur du corps de base de tige (12) tubulaire.
  3. Tige de forage selon la revendication 2,
    caractérisée en ce que l'au moins une ligne de base (30) débouche sur une plaque de raccordement (18), laquelle est disposée sur une zone supérieure du corps de base de tige (12).
  4. Tige de forage selon la revendication 3,
    caractérisée en ce qu'est prévu un dispositif de liaison (60), par lequel la plaque de raccordement (18) est reliée à la partie externe (42) en forme de douille du passage rotatif (40), dans laquelle une liaison de ligne est formée entre la ligne de base (30) dans le corps de base de tige (12) et la ligne d'amenée (82) sur l'élément de support (80).
  5. Tige de forage selon la revendication 4,
    caractérisée en ce que le dispositif de liaison (60) comprend un insert (62) de type panier avec au moins une ligne de liaison (68).
  6. Tige de forage selon la revendication 5,
    caractérisée en ce que l'insert (62) de type panier présente au moins un élément à complémentarité de forme (66), avec lequel une liaison solidaire en rotation est formée entre la plaque de raccordement (18) et/ou la partie externe (42) en forme de douille du passage rotatif (40).
  7. Tige de forage selon l'une quelconque des revendications 1 à 6,
    caractérisée en ce que des baguettes de butée (14) dirigées axialement s'étendent sur un côté extérieur du corps de base de tige (12) pour une transmission de couple de rotation.
  8. Ensemble de train de tiges avec une tige de forage (10) selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que par ailleurs au moins un tube de train de tiges (112, 114) radialement externe est prévu, dans lequel la tige de forage (10) est montée de manière solidaire en rotation, toutefois de manière à pouvoir coulisser axialement dans l'au moins un tube de train de tiges (112, 114) externe pour former un ensemble de tiges d'entraînement (100) télescopique.
  9. Ensemble de train de tiges selon la revendication 8,
    caractérisé en ce que plusieurs tubes de train de tiges (112, 114) externes sont prévus.
  10. Ensemble de train de tiges selon la revendication 8 ou 9,
    caractérisé en ce que l'élément de support (80) est un câble de support rigide en torsion.
  11. Appareil de forage avec au moins une tige de forage (10) selon l'une quelconque des revendications 1 à 7 ou un ensemble de train de tiges selon l'une quelconque des revendications 8 à 10,
    caractérisé en ce qu'un outil de forage avec un raccord de ligne est installé de manière amovible sur la tige de forage (10).
  12. Procédé pour équiper ultérieurement un ensemble de tiges d'entraînement (100), dans lequel une tige d'entraînement interne d'un ensemble de tiges d'entraînement (100) existant est remplacée par une tige de forage (10) selon l'une quelconque des revendications 1 à 7.
  13. Procédé selon la revendication 12,
    caractérisé en ce que, dans le cas d'un ensemble de tiges d'entraînement multiples (100) avec une tige d'entraînement interne, au moins un tube d'entraînement intermédiaire et un tube d'entraînement externe, la tige d'entraînement interne ou la tige d'entraînement interne et au moins une tige d'entraînement intermédiaire sont remplacées par la tige de forage (10).
EP20163709.7A 2020-03-17 2020-03-17 Tige de forage et procédé pour mise à niveau d'un agencement de tige carrée Active EP3882398B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20163709.7A EP3882398B1 (fr) 2020-03-17 2020-03-17 Tige de forage et procédé pour mise à niveau d'un agencement de tige carrée
CN202180020723.6A CN115210429A (zh) 2020-03-17 2021-01-26 钻杆和用于加装方杆组件的方法
PCT/EP2021/051698 WO2021185499A1 (fr) 2020-03-17 2021-01-26 Tige de forage et procédé de rénovation d'un agencement de tige carrée
US17/905,817 US11927059B2 (en) 2020-03-17 2021-01-26 Drill rod and method for retrofitting a Kelly bar arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20163709.7A EP3882398B1 (fr) 2020-03-17 2020-03-17 Tige de forage et procédé pour mise à niveau d'un agencement de tige carrée

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EP3882398A1 EP3882398A1 (fr) 2021-09-22
EP3882398C0 EP3882398C0 (fr) 2023-08-23
EP3882398B1 true EP3882398B1 (fr) 2023-08-23

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CN115637750A (zh) * 2022-10-17 2023-01-24 中铁工程机械研究设计院有限公司 一种回转接头及双轮铣

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CN115210429A (zh) 2022-10-18
EP3882398C0 (fr) 2023-08-23
EP3882398A1 (fr) 2021-09-22
US11927059B2 (en) 2024-03-12
WO2021185499A1 (fr) 2021-09-23
US20230123337A1 (en) 2023-04-20

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