EP1915505B1 - Procede et dispositif d'elimination du blocage d'une couronne lors du forage - Google Patents

Procede et dispositif d'elimination du blocage d'une couronne lors du forage Download PDF

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Publication number
EP1915505B1
EP1915505B1 EP06804333.0A EP06804333A EP1915505B1 EP 1915505 B1 EP1915505 B1 EP 1915505B1 EP 06804333 A EP06804333 A EP 06804333A EP 1915505 B1 EP1915505 B1 EP 1915505B1
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EP
European Patent Office
Prior art keywords
drill bit
drill
rod assembly
drilling
adapter
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
EP06804333.0A
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German (de)
English (en)
Other versions
EP1915505B8 (fr
EP1915505A1 (fr
Inventor
Josef Mocivnik
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.)
DYWIDAG-Systems International GmbH
Original Assignee
Alwag Tunnelausbau 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 Alwag Tunnelausbau GmbH filed Critical Alwag Tunnelausbau GmbH
Priority to PL06804333T priority Critical patent/PL1915505T3/pl
Publication of EP1915505A1 publication Critical patent/EP1915505A1/fr
Application granted granted Critical
Publication of EP1915505B1 publication Critical patent/EP1915505B1/fr
Publication of EP1915505B8 publication Critical patent/EP1915505B8/fr
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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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/03—Freeing by flushing
    • 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

Definitions

  • the present invention relates to a method for overriding a blockage of a drill bit during drilling, in particular impact or rotary impact drilling, holes in soil or rock material, wherein by a mounted on a drill string and acted upon by the drill string to a rotational movement and optionally impact movement and a borehole is formed with this connected drill bit.
  • the present invention further relates to a device for overriding a blockage of a drill bit during drilling, in particular impact or rotary impact drilling, holes in soil or rock material, a drill bit mounted on a drill string and through the drill string to a rotary motion and optionally impact movement to Forming a borehole is acted upon, wherein at least one helical or helical connection is provided between the drill bit facing the end of the drill string and the drill bit, which by a depression or elevation or flattening on an intermediate between the drill string and the drill bit adapter and a complementary profiling is formed on the drill bit.
  • the present invention therefore aims to provide a method and apparatus for unblocking provide a drill bit during a drilling operation, so that not only the time required for the production of a new bore additional time and cost and material costs can be avoided, but that in a simple way after a cancellation of the blockage of the drill bit hole not completed borehole can be continued or completed.
  • a method of the type initially mentioned is essentially characterized either by the fact that, when the drill bit is blocked, which prevents further drilling and, in particular, further rotational movement of the drill bit, the drill bit is moved linearly against the drilling direction via the drill string and being subjected to a rotational movement in a direction opposite to the direction of the rotational movement during the drilling operation and via a corresponding connection between the end of the drill string facing the drill bit and the drill bit and irrespective of a rotary drive for carrying out the drilling operation and that the connection between the to the drill bit end facing the drill string and the drill bit on an at least one screw or spiral-like depression or flattening or elevation having adapter and a complementary profiling on the Drill bit is made, wherein the helical or spiral-like depression or flattening or elevation has a large inclination or slope to the longitudinal axis of the drill string.
  • the drill bit on the drill string not only a linear movement against the drilling direction, but also independent of a usually not sufficiently strong as mentioned above rotational drive in addition to a rotational movement in one Direction opposite to the direction of the rotational movement is subjected during the drilling operation, by the at least partially retracting the drill bit opposite to the drilling direction and achieving a simultaneous rotational movement, the jamming or seizing of the drill bit can be solved or lifted, so that after lifting the blockage or the jamming of the drill bit can be continued or completed as a consequence of the drilling process of the unfinished borehole interrupted by the blockage.
  • the linear drive is sufficiently strong to exert a sufficient pull-out force on the drill string and thus subsequently on the drill bit counter to the drilling direction, resulting in a loosening of the drill bit in the linear direction of the borehole.
  • the drill bit is subjected to rotational movement counter to the direction of rotation to effect the drilling operation so that the drill bit may become disengaged from, for example, slight displacements from adjacent ones Rock layers is effected.
  • connection between the drill bit facing the end of the drill string and the drill bit via an at least one screw-shaped or spiral-like recess or flattening or elevation having adapter and a profiling complementary to the drill bit is made, wherein the helical or spiral-like depression or flattening or elevation to the longitudinal axis of the drill string great inclination or Slope is performed.
  • a plurality of helical connections or profilings is provided, which are provided uniformly around the circumference of the end facing the drill bit.
  • a merely pointwise engagement at several points in the region of the profilings between the drill pipe or the adapter and the drill bit is provided.
  • Such a point-wise engagement at several points is sufficient for the transmission of forces required to achieve the simultaneous linear pull-out movement and the rotational movement against the rotational direction during drilling and allows, for example, in the region of the connection between the drill bit and the drill pipe or the adapter by excessive frictional forces the desired simultaneous linear pull-out movement and rotational movement can be achieved.
  • a device of the type mentioned above is characterized essentially in that the spiral or screw-like connection in a blocking of the drill bit in a retraction of the drill string against the drilling direction regardless of a rotary drive for performing the drilling operation to a Rotational movement in a direction opposite to the direction of rotation during the boring process, and in that a plurality of adjacent, spiral flats are provided on the outer circumference of the adapter or drill pipe and complementary flattenings are provided in a blind hole of the drill bit, which in cross section has a polygonal, for example hexagonal, Contour.
  • the at least one spiral or helical connection is formed by a depression or elevation or flattening on an adapter interposed between the drill string and the drill bit and a complementary profiling on the drill bit.
  • a device of the aforementioned type is essentially characterized in that the spiral or screw-like connection in a blocking of the drill bit in a retraction of the drill string against the drilling direction, the drill bit next to a linear movement against the drilling direction regardless of a rotary drive for performing the drilling operation to a rotational movement in a direction opposite to the direction of rotation during the drilling operation, and that a plurality of substantially point or hemispherical elevations a blind hole of the drill bit for cooperation with the spiral or helical recess (s) or Recess (s) provided at the end of the adapter facing the drill bit.
  • the at least one helical or spiral-like Compound or profiling has a relation to the longitudinal axis of the drill string great slope or inclination, as corresponds to a further preferred embodiment of the device according to the invention.
  • a passageway for supplying a cooling or flushing fluid to exit channels or holes of the Drill bit and / or the adapter is provided, which open at the excavation surface of the drill bit and / or the peripheral surface of the adapter, as corresponds to a further preferred embodiment of the device according to the invention.
  • Fig. 1 to 4 It can be seen that an adapter 3 is provided between a generally designated 1 drill bit and a drill pipe generally designated 2, wherein the drill string 2 is connected via a schematically indicated with 4 screw with the adapter 3, wherein the adapter 3 separated into Fig. 5 is shown.
  • the adapter 3 at its end facing the drill bit 1 6 on its outer circumference a plurality of screw-like or spiral-like recesses 7, which a to in Fig. 3 having a longitudinal axis designated schematically 8 large inclination or inclination.
  • the spiral or screw-like depressions or connections or profiles 7 on the outer circumference of the end 6 of the adapter 3 cooperate with punctiform or hemispherical elevations 9 of the drill bit, which in 3 and 4 are shown in more detail and which allows a reliable setting of the drill bit 1 on the adapter 3 and thus on the drill pipe 2.
  • the drill pipe 2 and thus the adapter 3 as Also, the drill bit 1 subjected to a linear pull-out movement according to the arrow 10, wherein the direction of movement of the usual drilling or advancing direction is opposite.
  • the drilling process can be carried out directly by means of an appropriate loading of the drill pipe 2 and thus subsequently the drill bit 1 with the interposition of the adapter 3 by known drive means, which are known at a projecting end of the drill pipe 2 from the borehole Attack the way.
  • both the drill pipe 2 and the adapter 3 are provided with a passageway 12 and 13, which opens into corresponding outlet channels or holes 14 of the drill bit 1, which in turn at the mining area 15 of the drill bit 1 open.
  • the adapter 3 is provided starting from the passageway 13 with outlet channels 16 to assist in the removal of degraded material.
  • the drill bit 1 or its blind hole 11 may be provided with corresponding recesses or grooves, which with corresponding profilings, in particular elevations on the circumference of the end 6 of the Interact adapter 3.
  • the drill bit facing the end of the drill string 2 directly with the corresponding spiral or helical Recesses or elevations be provided, which cooperate with corresponding profiles of the drill bit 1, so that an additional manufacturing effort for the adapter 3 can be avoided.
  • a polygonal contour forming flattening can turn upon withdrawal of the drill string and the adapter 3, a rotation on the in 6 and 7 Not shown drill bit in a direction opposite to the direction drill to loosen a tight drill bit 1, so that subsequently a completion of a borehole is possible.
  • substantially hexagonal contour of the Wendelpolygons can of course according to modified, polygonal contours, for example, with four, five, seven or more surveys, are used.

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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)

Claims (10)

  1. Procédé pour lever un blocage d'une couronne de forage (1) lors du forage, en particulier lors du forage percutant ou du forage roto-percutant, de trous dans un sol ou une roche, dans lequel un trou de forage est formé par une couronne de forage (1) montée au niveau d'une tige de forage (2) et contrainte par la tige de forage (2) à effectuer un mouvement de rotation et éventuellement un mouvement de percussion et reliée à ladite tige de forage, caractérisé en ce que lors d'un blocage de la couronne de forage (1), qui empêche la poursuite d'une opération de forage et en particulier la poursuite d'un mouvement de rotation de la couronne de forage (1), la couronne de forage (1) est soumise par l'intermédiaire de la tige de forage (2) à un mouvement linéaire dans le sens opposé au sens du forage et par l'intermédiaire d'une liaison (7, 19) associée entre l'extrémité, tournée vers la couronne de forage (1), de la tige de forage (2) et la couronne de forage (1) et indépendamment d'un entraînement en rotation servant à exécuter l'opération de forage, en plus à un mouvement de rotation dans un sens opposé au sens du mouvement de rotation au cours de l'opération de forage, et en ce que la liaison entre l'extrémité, tournée vers la couronne de forage (1), de la tige de forage (2) et la couronne de forage (1) est effectuée, par l'intermédiaire d'un adaptateur (3) présentant au moins un renfoncement ou un méplat (19) de type vis ou spirale ou une partie surélevée (7) et par l'intermédiaire d'un profilage (9) complémentaire, au niveau de la couronne de forage (1), dans lequel le renfoncement ou le méplat (19) de type vis ou spirale ou la partie surélevée (7) présente une inclinaison importante par rapport à l'axe longitudinal de la tige de forage (2).
  2. Procédé selon la revendication 1, caractérisé en ce qu'est prévue une pluralité de profilages (7, 19) de type vis ou spirale, lesquels sont prévus de manière homogène sur la périphérie de l'extrémité tournée vers la couronne de forage (1).
  3. Procédé selon la revendication 1, caractérisé en ce qu'est prévue une pluralité de parties surélevées (9) présentant sensiblement une forme de point ou une forme de demi-sphère dans un trou borgne (11) de la couronne de forage (1) en vue d'une coopération avec le/les renfoncement (s) (7) de type spirale ou vis au niveau de l'extrémité (6), tournée vers la couronne de forage, de l'adaptateur (3).
  4. Procédé selon la revendication 3, caractérisé en ce qu'est prévu un engrènement seulement point à point au niveau de plusieurs emplacements dans la zone des profilages (7, 9) entre la tige de forage (2) ou l'adaptateur (3) et la couronne de forage (1).
  5. Dispositif pour lever un blocage d'une couronne de forage (1) lors du forage, en particulier du forage percutant ou du forage roto-percutant, de trous dans un sol ou une roche, dans lequel une couronne de forage (1) est montée au niveau d'une tige de forage (2) et est contrainte par la tige de forage (2) à effectuer un mouvement de rotation et éventuellement un mouvement de percussion pour former un trou de forage, dans lequel au moins une liaison (7) de type spirale ou vis est prévue entre l'extrémité tournée vers la couronne de forage de la tige de forage (2) et la couronne de forage (1), laquelle est formée au niveau de la couronne de forage (1) par un méplat (19) au niveau d'un adaptateur (3) intercalé entre la tige de forage (2) et la couronne de forage (1) et au niveau d'un profilage (9) complémentaire, caractérisé en ce que la liaison de type spirale ou vis est contrainte lors d'un blocage de la couronne de forage (1), lors d'un retrait de la tige de forage (2) dans le sens opposé au sens de forage, indépendamment d'un entraînement de rotation servant à exécuter l'opération de forage à effectuer un mouvement de rotation dans un sens opposé au sens de rotation au cours de l'opération de forage, et en ce qu'est prévue une pluralité de méplats (19) présentant une forme de spirale, adjacents les uns aux autres, au niveau de la périphérie extérieure de l'adaptateur (3) ou de la tige de forage (2) ainsi que des méplats complémentaires dans un trou borgne (11) de la couronne de forage (1), lesquels présentent dans la section transversale un contour de forme polygonale, par exemple un contour hexagonal.
  6. Dispositif selon la revendication 5, caractérisé en ce qu'est prévue une pluralité de profilages (7, 9, 19) de type vis ou spirale entre la tige de forage (2) ou l'adaptateur (3) et la couronne de forage (1), lesquels sont espacés respectivement de manière homogène.
  7. Dispositif pour lever un blocage d'une couronne de forage (1) lors du forage, en particulier lors du forage percutant ou du forage roto-percutant, de trous dans un sol ou une roche, dans lequel une couronne de forage (1) est montée au niveau d'une tige de forage (2) et est contrainte par la tige de forage (2) à effectuer un mouvement de rotation et éventuellement un mouvement de percussion en vue de former un trou de forage, dans lequel au moins une liaison (7) de type spirale ou vis est prévue, entre l'extrémité tournée vers la couronne de forage de la tige de forage (2) et la couronne de forage (1), laquelle est formée au niveau de la couronne de forage (1) par un renfoncement ou une partie surélevée (7) au niveau d'un adaptateur (3) intercalé entre la tige de forage (2) et la couronne de forage (1) et au niveau d'un profilage (9) complémentaire, caractérisé en ce que la liaison de type spirale ou vis contraint la couronne de forage, lors d'un blocage de la couronne de blocage (1), lors d'un retrait de la tige de forage (2) dans le sens opposé au sens de forage, outre un mouvement linéaire dans le sens opposé au sens de forage, indépendamment d'un entraînement en rotation servant à exécuter l'opération de forage, à effectuer un mouvement de rotation dans un sens opposé au sens de rotation au cours de l'opération de forage, et en ce qu'est prévue une pluralité de parties surélevées (9) présentant sensiblement une forme de point ou de demi-sphère au niveau d'un trou borgne (11) de la couronne de forage (1) en vue d'une coopération avec le/les renfoncement(s) ou évidements (7) de type spirale ou de type vis, au niveau de l'extrémité (6), tournée vers la couronne de forage, de l'adaptateur (3).
  8. Dispositif selon la revendication 5 à 7, caractérisé en ce que la liaison ou le profilage (7, 19) de type vis ou spirale au moins au nombre de un/une présente une inclinaison importante par rapport à l'axe longitudinal de la tige de forage.
  9. Dispositif selon l'une quelconque des revendications 5 à 8, caractérisé en ce qu'est prévu, à l'intérieur de la tige de forage (2) et/ou de l'adaptateur (3), un canal de passage (12, 13) servant à l'amenée d'un fluide de refroidissement ou d'un fluide de lavage vers des canaux ou trous de sortie (14, 16) de la couronne de forage (1) et/ou de l'adaptateur (3), lesquels débouchent au niveau de la face d'extraction (15) de la couronne de forage (1) et/ou au niveau de la face périphérique de l'adaptateur (3).
  10. Dispositif selon l'une quelconque des revendications 5 à 9, caractérisé en ce que des renfoncements ou des évidements (18) et/ou des trous de passage (17) servant à évacuer le matériau extrait en passant par un espace annulaire entre la périphérie extérieure de la tige de forage (2) et la paroi intérieure du trou de forage obtenu sont prévus d'une manière connue en soi au niveau de la périphérie extérieure de la couronne de forage (1).
EP20060804333 2005-08-19 2006-08-11 Procede et dispositif d'elimination du blocage d'une couronne lors du forage Active EP1915505B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06804333T PL1915505T3 (pl) 2005-08-19 2006-08-11 Sposób i urządzenie do zwalniania blokady koronki wiertniczej przy wierceniu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT13862005 2005-08-19
PCT/AT2006/000338 WO2007019594A1 (fr) 2005-08-19 2006-08-11 Procede et dispositif d'elimination du blocage d'une couronne lors du forage

Publications (3)

Publication Number Publication Date
EP1915505A1 EP1915505A1 (fr) 2008-04-30
EP1915505B1 true EP1915505B1 (fr) 2015-03-11
EP1915505B8 EP1915505B8 (fr) 2015-05-06

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ID=37199123

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Application Number Title Priority Date Filing Date
EP20060804333 Active EP1915505B8 (fr) 2005-08-19 2006-08-11 Procede et dispositif d'elimination du blocage d'une couronne lors du forage

Country Status (10)

Country Link
US (1) US20090133934A1 (fr)
EP (1) EP1915505B8 (fr)
JP (1) JP2009504950A (fr)
KR (1) KR20080038341A (fr)
AU (1) AU2006281954B2 (fr)
CA (1) CA2619175C (fr)
PL (1) PL1915505T3 (fr)
RU (1) RU2391480C2 (fr)
WO (1) WO2007019594A1 (fr)
ZA (1) ZA200801213B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011031528A2 (fr) 2009-08-27 2011-03-17 Baker Hughes Incorporated Procédés et appareil pour manipuler et enfoncer un tubage
AT508991B1 (de) * 2009-11-06 2012-09-15 Dywidag Systems Int Gmbh Verfahren zum bohren, insbesondere schlag- oder drehschlagbohren von löchern in boden oder gesteinsmaterial sowie vorrichtung hiefür
BR112012017840A2 (pt) * 2010-01-22 2017-12-19 Longhorn Casing Tools Inc ferramenta e método de uso para desobstrução de poço
US8919452B2 (en) * 2010-11-08 2014-12-30 Baker Hughes Incorporated Casing spears and related systems and methods
DE102013020761B4 (de) * 2013-12-09 2018-01-04 Stahl- und Apparatebau Hans Leffer GmbH & Co. KG Verriegelungsvorrichtung und -verfahren für die Werkzeugaufnahme einer Drehbohranlage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1794196A (en) * 1928-01-13 1931-02-24 Gustavus A Montgomery Control mechanism for rotary drill pipes
US1785086A (en) * 1928-03-01 1930-12-16 Leroy G Gates Automatic feed device for rotary drill bits
US3405771A (en) * 1966-04-12 1968-10-15 Mr Dudley Hughes Deep well motor impact tool and drilling apparatus
US4270620A (en) * 1979-01-12 1981-06-02 Dailey Oil Tools, Inc. Constant bottom contact tool
GB8800572D0 (en) * 1988-01-12 1988-02-10 Red Baron Oil Tools Rental Improvements in/relating to drilling tool
US5119891A (en) * 1988-10-31 1992-06-09 S & T No 13 Pty Ltd. Adaptor for drilling strings with controllable air passage
US6464023B2 (en) * 1999-01-27 2002-10-15 William N. Patterson Hydraulic in-the-hole percussion rock drill

Also Published As

Publication number Publication date
EP1915505B8 (fr) 2015-05-06
RU2008110501A (ru) 2009-09-27
EP1915505A1 (fr) 2008-04-30
WO2007019594A1 (fr) 2007-02-22
KR20080038341A (ko) 2008-05-06
AU2006281954B2 (en) 2011-08-04
CA2619175C (fr) 2012-12-11
PL1915505T3 (pl) 2015-09-30
AU2006281954A1 (en) 2007-02-22
US20090133934A1 (en) 2009-05-28
CA2619175A1 (fr) 2007-02-22
RU2391480C2 (ru) 2010-06-10
JP2009504950A (ja) 2009-02-05
ZA200801213B (en) 2009-01-28

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