EP4339417A1 - Ensemble de tête de serrage pour tendre un élément de tige de forage - Google Patents

Ensemble de tête de serrage pour tendre un élément de tige de forage Download PDF

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Publication number
EP4339417A1
EP4339417A1 EP22195706.1A EP22195706A EP4339417A1 EP 4339417 A1 EP4339417 A1 EP 4339417A1 EP 22195706 A EP22195706 A EP 22195706A EP 4339417 A1 EP4339417 A1 EP 4339417A1
Authority
EP
European Patent Office
Prior art keywords
clamping
locking
base body
clamping jaw
jaw base
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.)
Granted
Application number
EP22195706.1A
Other languages
German (de)
English (en)
Other versions
EP4339417B1 (fr
Inventor
Tobias Moscaritolo
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.)
Eurodrill GmbH
Original Assignee
Eurodrill 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 Eurodrill GmbH filed Critical Eurodrill GmbH
Priority to EP22195706.1A priority Critical patent/EP4339417B1/fr
Priority to CA3210397A priority patent/CA3210397A1/fr
Priority to CN202311107546.2A priority patent/CN117703287A/zh
Priority to US18/463,192 priority patent/US12129720B2/en
Priority to JP2023146719A priority patent/JP7729861B2/ja
Publication of EP4339417A1 publication Critical patent/EP4339417A1/fr
Application granted granted Critical
Publication of EP4339417B1 publication Critical patent/EP4339417B1/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/10—Slips; Spiders ; Catching devices
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • E21B19/07—Slip-type elevators
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot

Definitions

  • the invention relates to a clamping head arrangement for clamping a drill pipe element with a clamping head base, at least one clamping jaw base body, which is radially adjustable on the clamping head base between a clamping position and a release position relative to the drill pipe element, and at least one adapter element on the clamping jaw base body, the adapter element adapted to a shape of the drill pipe element to be tensioned and designed to rest against the drill pipe element in the clamping position and to tension it, according to the preamble of claim 1.
  • a known clamping head arrangement is, for example, from EP 1 936 109 B1 out.
  • a drill pipe element can be clamped and held with three clamping jaws offset from one another by 120°.
  • Such clamping head arrangements are used in particular on drilling devices in which the drill pipe is composed of several drill pipe elements and is in particular screwed together.
  • such clamping head arrangements can be used, for example, to hold the existing drill pipe so that it does not slip back into the drill pipe when it is withdrawn from the borehole.
  • clamping jaws can transmit high torques via frictional force when clamped.
  • a clamping head arrangement can also be movable axially or radially.
  • the clamping head arrangement has clamping jaws with a contact surface with which the clamping jaw has the largest possible area of contact with the outer circumference of the drill pipe. This allows the highest possible adhesion and friction forces and thus the best possible holding force on the drill pipe.
  • the invention is based on the object of specifying a clamping head arrangement with which adaptation to modified drill pipe elements can be carried out efficiently.
  • the clamping head arrangement according to the invention is characterized in that the adapter element is detachably arranged on the clamping jaw base body and can be locked by means of an actuatable locking device and in that the locking device has at least one locking element which is locked and fixed between a locking position in which the adapter element is locked on the clamping jaw base body is, and is adjustable to a release position in which the adapter element is released and removable from the clamping jaw base body.
  • a basic idea of the invention is that the adapter element, which represents the actual clamping jaw, is detachably mounted on a clamping jaw base body and locked by means of an actuable locking device.
  • Complex connecting devices which in particular include screws, can be used omitted.
  • an easy-to-use and preferably automatically or semi-automatically actuated locking device with a locking element is provided.
  • the locking element can be adjusted between a locking position and a release position by a simple locking movement, in particular a linear or arcuate movement. With the locking device on the clamping jaw base body, quick release and locking and thus an efficient change of the adapter elements can be carried out.
  • the clamping head base is essentially cylindrical or tubular.
  • the clamping head base represents a base body or a frame on which the clamping jaw base bodies are mounted.
  • the clamping head base can be ring-shaped or sleeve-shaped and encompass the drill pipe element on its outside.
  • the clamping head base can also be designed in the form of a rod or in a similar manner, so that it can be arranged within a tubular linkage element.
  • clamping can take place on the outside of the drill pipe element and/or on the inside of the drill pipe element.
  • a single clamping jaw base body is arranged, which can be delivered to the drill pipe element with the clamping jaw or adapter element.
  • several clamping jaw base bodies are arranged distributed over a circumference of the drill pipe element to be clamped.
  • two, three or four or another suitable number of clamping jaw base bodies with corresponding adapter elements can be arranged in one plane distributed over the circumference of the drill pipe element.
  • the adapter elements are arranged opposite one another in the radial direction, so that abutment forces can cancel each other out.
  • At least one locking element is prestressed by a pretensioning device and held in the locking position.
  • all locking elements of the clamping head arrangement are held prestressed in the locking position.
  • the biasing device can in particular be a tension spring with which the locking element is held in the locking position with spring force.
  • the at least one locking element has an actuating section for adjusting the locking element from the locking position to the release position.
  • the actuating section can be a pin or a bolt, which preferably projects relative to the clamping jaw base body.
  • At least one locking element is displaceably mounted on or in a clamping jaw base body and that an actuating section of the locking element protrudes in the locking position relative to the clamping jaw base body.
  • the locking element can preferably be mounted adjustably on or in the clamping jaw base body in a corresponding receptacle.
  • the actuating section of the locking element can preferably protrude out of the receptacle, so that the actuating section can be easily actuated.
  • the at least one clamping jaw base body is mounted in an axially displaceable manner and that a wedge slide mechanism is formed on the clamping head base, through which an axial movement of the at least clamping jaw base body can be converted into a radial clamping movement.
  • guide strips directed obliquely to the longitudinal axis of the drill pipe can be arranged on the clamping head base or the clamping head base can be conical as a whole, so that an axial displacement of the clamping jaw base body in the longitudinal direction also leads to a radial adjusting and clamping movement of the clamping jaw base body.
  • At least one stop is arranged on the clamping head base, against which an actuating section of the locking element can be moved, the locking element being adjustable from its locking position into the release position.
  • the actuating element can protrude forward in the direction of movement, so that the actuating element is pressed axially against a stop after a certain adjustment movement of the clamping jaw base body.
  • the stop is arranged in such a way that the actuating section does not come into contact with the stop during a normal axial clamping movement for tensioning a drill pipe. Rather, this is only possible if no clamping of a drill pipe element is provided and accordingly no drill pipe is arranged in the clamping head arrangement.
  • the locking element can be adjusted from the locking position into the release position via the actuating element.
  • the unlocked adapter element can then be removed from the clamping jaw base body and a new, adapted adapter element can be inserted.
  • This version can be used to unlock or lock the actuator, which is also intended to carry out the clamping movement during a drilling operation.
  • a preferred embodiment of the invention consists in particular in that an adjusting device, in particular with at least one adjusting cylinder, is arranged, with which the at least one clamping jaw base body can be adjusted.
  • the adjusting device can in particular have one or more hydraulic cylinders, which are preferably aligned parallel to the longitudinal axis of the drill pipe element to be tensioned.
  • a further expedient embodiment variant of the invention is that the adapter element has at least one holding section which projects into a recess in the clamping jaw base body, and that the at least one holding section is designed with the at least one locking element of the clamping jaw base body for at least positive fixing of the adapter element on the clamping jaw base body.
  • the fixing can preferably take place not only in a form-fitting manner, but also in a force-fitting manner.
  • the holding section has a holding pin on which a locking recess is formed, in which the locking element engages with a locking section for positive locking in the locking position.
  • a through hole or preferably an outer recess, in particular also an annular recess can be arranged on the holding section, into which the locking element engages in a form-fitting manner with at least one locking section. This ensures that the adapter element is held reliably on the clamping jaw base body.
  • the locking element has a release section, which is arranged on the locking recess in the release position in such a way that the adapter element with the holding section can be removed from the clamping jaw base body.
  • the locking element can in particular be a pin- or bolt-shaped locking element, in which the release section is formed by a recess. If this recess of the release section is moved into the area of the locking recess of the holding section of the adapter element, the positive locking can be canceled. In this release position, the adapter element with the holding section can be released and removed from the clamping jaw base body.
  • the invention further comprises a drilling device for creating a borehole, in particular in a ground, with at least one drill pipe element, the previously described clamping head arrangement according to the invention being provided.
  • a drilling device for creating a borehole, in particular in a ground, with at least one drill pipe element, the previously described clamping head arrangement according to the invention being provided.
  • a clamping head arrangement 10 according to the invention with a sleeve-shaped clamping head base 12 is shown schematically in Figure 1 shown.
  • the clamping head arrangement 10 can be firmly attached to a partially indicated rotary drive 80 and in particular to a rotationally driven output element 82 with a connector with an external thread 84.
  • the clamping head base 12 can thus rotate with the output element 82 of the rotary drive 80.
  • a drill pipe with a corresponding internal thread can be screwed on via the external thread 84 of the output element 82.
  • the drill pipe is arranged within the sleeve-shaped clamping head base 12 and in Figure 1 not shown.
  • a clamping head slide 14 is mounted in an axially displaceable manner.
  • an adjusting device 70 with one or more adjusting cylinders 72 can be arranged, as also shown schematically in Figure 1 is shown.
  • the adjusting device 70 can be firmly attached to a base body (not shown), such as a drilling device, and can be stationary relative to the rotating drive element 82.
  • an actuator 74 can be moved, which is connected to the axially movable clamping slide 14 via pivot bearings 76. In this way, an axial adjusting movement can be transmitted from the relatively fixed adjusting device 70 to the clamping slide 14 on the clamping head base 12, which rotates about a longitudinal and/or rotational axis.
  • one or more clamping jaw base bodies 20 can be connected to the clamping slide 14 by means of an annular holder 22.
  • the holder 22 can be designed in such a way that it creates an axially fixed connection with the at least one clamping jaw base body 20, but allows a radial movement of the clamping jaw base body 20 with respect to the clamping head base 12 with respect to the longitudinal or rotation axis.
  • An outer side surface of the clamping jaw base body 20 is inclined or conical, so that it forms a wedge slide mechanism 18 with a corresponding inclined or conical guide element 17, which is firmly attached to the outside of the clamping head base 12.
  • the wedge slide mechanism 18 is designed in such a way that during an axial feed movement of the clamping slide 14, the clamping jaw base body 20 is adjusted not only axially but also in a defined manner in a radial direction, in particular radially inwards.
  • plate-like adapter elements 30 are arranged on the radial inside, preferably arcuate on the inside and adapted to the drill pipe element to be clamped.
  • the adapter elements 30 extend through window-like passages 16 in the clamping head base 12 from the clamping jaw base body 20 attached to the radial outside into the interior of the sleeve-shaped clamping head base 12. Due to the radial movement of the clamping jaw base body 20 with the adapter elements 30 attached thereto, a Radial non-positive clamping of a cylindrical drill pipe element arranged in the clamping head base 12 takes place.
  • the clamping jaw base body 20 with the adapter element 30 is reset radially again, the tension of a drill pipe element being released.
  • the adapter elements 30 are each held releasably and interchangeably on the clamping jaw base body 20 by means of a locking device 40, the locking device 40 having a bolt-like locking element 42 arranged parallel to the longitudinal or rotation axis with a pin-like actuating section 44, which is opposite an end face of the associated clamping jaw base body 20 projects axially.
  • the clamping jaw base body 20 can be moved to a front end position, in which the actuating section 44 of the locking element 42 is pressed against an axial stop 60.
  • the functionality of the locking device 40 is described in more detail below in connection with the other figures.
  • FIG 2 a clamping jaw base body 20 is shown in an enlarged view.
  • the clamping jaw base body 20 has a recess 26 into which the adapter element 30 with a holding section 36 is fitted.
  • the adapter element 30 has an arcuate clamping surface 32 on its top, the contour of which is adapted to an outer contour of a cylindrical drill pipe element to be clamped.
  • the locking device 40 with a bolt-shaped locking element 42 is arranged within the clamping jaw base body 20.
  • the locking element 42 is slidably mounted and held in a receiving hole in the clamping jaw base body 20 via a screwed fastening plate 24, with a pin-shaped actuating section 44 with a dome-shaped head protruding from the clamping jaw base body 20 in a defined manner from the locking element 42.
  • FIG. 3 This shows Figure 3 the locking device 40 in its locking position.
  • the bolt-shaped locking element 42 is held in the locking position via a pretensioning device 50, which according to the illustrated embodiment can be designed as a helical spring 52.
  • a locking section 46 of the locking element 42 engages in an annular groove-shaped locking recess 38 of a holding pin 37, which is formed on an underside of the holding section 36 of the adapter element 30.
  • the holding pin 37 is accommodated in a corresponding receiving hole within the clamping jaw base body 20.
  • the retaining pin 37 is in the Locking recess 38 engaging locking section 46 held in a form-fitting manner.
  • the front actuation section 44 of the locking element 42 projects axially in a defined manner relative to the fastening plate 24 attached to the clamping jaw base body 20.
  • the clamping jaw base body 20 will now be in accordance with the Figure 1 Moved axially against the stop 60, the actuating section 44 and thus the locking element 42 are pressed inwards into a release position, which is shown schematically in Figure 4 is shown.
  • the larger diameter locking section 46 disengages from the locking recess 38.
  • a release section 48 of the locking element 42 is pushed.
  • the release section 48 has a smaller diameter than the adjacent locking section 46.
  • the release section 48 is designed in such a way that the retaining pin 37 is no longer positively blocked and the adapter element 30 can therefore be pulled upwards out of the recess 26 on the clamping jaw base body 20. like in Figure 5 is shown.
  • a new adapter element 30 can then be inserted into the clamping jaw base body 20, which preferably has a different arcuate contour of the clamping surface 32.
  • the clamping jaw base body 20 can be adjusted accordingly Figure 1 can be pushed away from the stop 60 again with the adjusting device 70.
  • the bolt-shaped locking element 42 is adjusted.
  • the locking element 42 is returned to the locking position by the pretensioning device 50 with the coil spring 52, which is compressed in the release position.
  • the locking element 42 takes the position again accordingly Figure 3 a.

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  • 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)
  • Mechanical Engineering (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Earth Drilling (AREA)
EP22195706.1A 2022-09-14 2022-09-14 Ensemble de tête de serrage pour tendre un élément de tige de forage Active EP4339417B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP22195706.1A EP4339417B1 (fr) 2022-09-14 2022-09-14 Ensemble de tête de serrage pour tendre un élément de tige de forage
CA3210397A CA3210397A1 (fr) 2022-09-14 2023-08-29 Assemblage de tete de serrage pour serrer un element de tige de forage
CN202311107546.2A CN117703287A (zh) 2022-09-14 2023-08-30 用于夹持钻管元件的夹持头组件
US18/463,192 US12129720B2 (en) 2022-09-14 2023-09-07 Clamping head assembly for clamping a drill pipe element
JP2023146719A JP7729861B2 (ja) 2022-09-14 2023-09-11 ドリルパイプ要素を締め付けるための締付けヘッドアセンブリ及び掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22195706.1A EP4339417B1 (fr) 2022-09-14 2022-09-14 Ensemble de tête de serrage pour tendre un élément de tige de forage

Publications (2)

Publication Number Publication Date
EP4339417A1 true EP4339417A1 (fr) 2024-03-20
EP4339417B1 EP4339417B1 (fr) 2026-05-20

Family

ID=83318995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22195706.1A Active EP4339417B1 (fr) 2022-09-14 2022-09-14 Ensemble de tête de serrage pour tendre un élément de tige de forage

Country Status (5)

Country Link
US (1) US12129720B2 (fr)
EP (1) EP4339417B1 (fr)
JP (1) JP7729861B2 (fr)
CN (1) CN117703287A (fr)
CA (1) CA3210397A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4703555A1 (fr) 2024-08-29 2026-03-04 Eurodrill GmbH Tête de serrage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090057032A1 (en) * 2007-08-28 2009-03-05 Frank's Casing Crew & Rental Tools, Inc. Segmented Bottom Guide for String Elevator Assembly
EP1936109B1 (fr) 2006-12-18 2009-05-20 Eurodrill GmbH Dispositif de forage à entrainement rotatif
US7775270B1 (en) * 2004-10-05 2010-08-17 Sipos David L Spider with distributed gripping dies
EP2322757A2 (fr) * 2009-11-11 2011-05-18 Vaillant GmbH Dispositif de serrage doté de mâchoires de serrage, de préférence pour trous dans le sol
US20140332236A1 (en) * 2013-05-07 2014-11-13 Premier Coil Solutions Quick-Release Gripping Insert Assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2563952Y2 (ja) * 1992-09-01 1998-03-04 日本車輌製造株式会社 掘削機のロッド連結装置
JP3093524B2 (ja) * 1993-06-30 2000-10-03 ライト工業株式会社 管体の着脱装置
JPH07102872A (ja) * 1993-10-05 1995-04-18 Taisei Corp 穿孔装置におけるロッドの把持装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7775270B1 (en) * 2004-10-05 2010-08-17 Sipos David L Spider with distributed gripping dies
EP1936109B1 (fr) 2006-12-18 2009-05-20 Eurodrill GmbH Dispositif de forage à entrainement rotatif
US20090057032A1 (en) * 2007-08-28 2009-03-05 Frank's Casing Crew & Rental Tools, Inc. Segmented Bottom Guide for String Elevator Assembly
EP2322757A2 (fr) * 2009-11-11 2011-05-18 Vaillant GmbH Dispositif de serrage doté de mâchoires de serrage, de préférence pour trous dans le sol
US20140332236A1 (en) * 2013-05-07 2014-11-13 Premier Coil Solutions Quick-Release Gripping Insert Assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4703555A1 (fr) 2024-08-29 2026-03-04 Eurodrill GmbH Tête de serrage

Also Published As

Publication number Publication date
CA3210397A1 (fr) 2024-03-14
EP4339417B1 (fr) 2026-05-20
JP2024041728A (ja) 2024-03-27
US20240084652A1 (en) 2024-03-14
CN117703287A (zh) 2024-03-15
JP7729861B2 (ja) 2025-08-26
US12129720B2 (en) 2024-10-29

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