EP2350420B1 - Dispositif de forage de roche - Google Patents

Dispositif de forage de roche Download PDF

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Publication number
EP2350420B1
EP2350420B1 EP09758569.9A EP09758569A EP2350420B1 EP 2350420 B1 EP2350420 B1 EP 2350420B1 EP 09758569 A EP09758569 A EP 09758569A EP 2350420 B1 EP2350420 B1 EP 2350420B1
Authority
EP
European Patent Office
Prior art keywords
anchor
string portion
support
borehole
support shoe
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
EP09758569.9A
Other languages
German (de)
English (en)
Other versions
EP2350420A1 (fr
EP2350420A4 (fr
Inventor
Per Olav Haughom
Sigurd Kjell Haughom
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.)
Norhard As
Original Assignee
Norhard As
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Application filed by Norhard As filed Critical Norhard As
Publication of EP2350420A1 publication Critical patent/EP2350420A1/fr
Publication of EP2350420A4 publication Critical patent/EP2350420A4/fr
Application granted granted Critical
Publication of EP2350420B1 publication Critical patent/EP2350420B1/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/18—Anchoring or feeding in the borehole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D3/00—Raising shafts, i.e. working upwards from the bottom

Definitions

  • This invention relates to a rock drilling machine. More particularly it concerns a rock drilling machine for drilling of boreholes in rock where the rock drilling machine comprises a drilling portion and a string portion, the drilling portion comprising a drill bit and a drive motor arranged to rotate the drill bit, the rock drilling machine by means of joinable pipes being connected to a support device on the outside of the borehole, the support device being designed to provide an axial displacement force to the rock drilling machine for the drilling progress.
  • support device is in this context meant an equipment positioned at the opening of the borehole and which is arranged to at least being able to displace a string portion in the borehole or to rotate the string portion about its central axis, or be provided with equipment for control and energy supply to the drilling portion and the string portion.
  • the axial displacement force must be able to overcome the force needed to displace the string portion and the drilling portion themselves in the borehole and in addition apply to the drilling portion drill bit sufficient axial force for cutting progress to take place.
  • WO 2005/090739 discloses an expandable gripper assembly that may be configured for anchoring a tool in a passage.
  • the document shows a case where a coiled tubing system with two downhole tractors connected to a drill string utilizes the gripper.
  • WO 95/21987 shows a tractor for pulling wire/cable-operated equipment where motor driven rollers are used for propulsion of the tractor.
  • US 5613568 discloses a self-feeding rock drilling machine that comprises a drive unit, an anchoring unit and a feeding unit.
  • the machine has hydraulic rams between the anchoring unit and the drive unit.
  • US4700788 which discloses an arrangement according to the preamble of claim 1, discloses an apparatus provided for constructing a deep, essentially horizontal borehole in the earth by directional drilling.
  • a drillstring is provided with one or more tractors along a drillstring to overcome the friction between the drillstring and the borehole by gripping the inside of the borehole to apply thrust from the tractor to propel drilling means forward.
  • the tractors and the drill bit is hydraulically operated, hydraulic fluid being supplied through the drillstring or separate pipes.
  • US3088532 discloses a bottom hole assembly using hydraulic drilling pressure to exert force on a drill bit during the drilling of a well bore, a telescopic power transmission shaft being supported from the rotatable drill pipe.
  • a housing is surrounding a portion of the telescopic power transmission shaft, carrying several anchor shoes that can be set towards the well bore wall, and together with a piston on the transmission shaft defining an annular hydraulic chamber applying force on the transmission shaft.
  • the telescopic power transmission shaft is rotating with the drill pipe, while the housing is non-rotating when set.
  • SU1514942 discloses a rotating drill string comprising an anchoring device arranged with several shoes settable against a portion of the borehole.
  • GB1060002 is disclosing a self-feeding drilling machine having a drilling tool 4, 5 and a housing 7, which slide in the borehole, and accommodates the driving mechanism 3 for the drilling tool and carries the advancing mechanism.
  • the advancing mechanism is provided with grippers.
  • the drilling machine is connected to a rig outside the borehole providing initial positioning of the drilling machine when drilling operation is to be started, and with a compressor for supply of pressured air and mean for receipt of cutting debris being discharged through a discharge pipe.
  • WO2005/090739 A1 discloses an expandable gripper assembly 100 configurable for anchoring a tool in a passage, i.e. a tractor connected to a coiled tubing system in a borehole.
  • the expandable gripper assembly includes pivotally connected links that are coupled to a tool.
  • the object of the invention is to remedy or reduce at least one of the prior art drawbacks.
  • an arrangement comprising a rock drilling machine for drilling of boreholes in rock where the rock drilling machine comprises a drilling portion and a string portion, the drilling portion comprising a drill bit and a drive motor arranged to rotate the drill bit, the arrangement further comprising screwed together pipe lengths and a support device on the outside of the borehole to which the screwed together pipe lengths are connected, the support device being designed to provide an axial displacement force to the rock drilling machine for the drilling progress, wherein the string portion is provided with an anchor comprising at least one against the borehole preloadable and relative to the string portion axially displaceable support shoe, characterised in that the rock drilling machine further comprises a feed cylinder being positioned inside a guide pipe forming part of the string portion and connecting the string portion and the anchor in an axially slidable manner wherein the anchor further comprises an anchor housing to which the at least one support shoe is connected, the anchor housing surrounding the guide pipe and being displaceable along the guide pipe.
  • the anchor may also transfer axial forces between the string portion and the borehole wall.
  • the support shoe may be hydraulically displaceable between a retracted non-active position and an extended active position where the support shoe abuts the borehole wall. Hydraulic preloading of the support shoe is preferable for among other things to be able to compensate for unintentional displacement between the support shoe and the borehole wall. Other forms of actuators, such as electrical, may in some cases be appropriate.
  • a mechanical interconnection of the support shoes may be appropriate to ensure that the support shoes are displaced synchronously.
  • the support shoes may for example be connected to a common cylinder or they may be interlocked by means of linkages.
  • the support shoe may be connected to the anchor housing of the anchor by means of a first link and to a hydraulic cylinder by means of a second link.
  • a displacement of the piston rod in the hydraulic cylinder relative to the cylinder housing of the hydraulic cylinder causes the support shoe to be displaced radially relative to the string portion.
  • the support shoe may abut the anchor via an in relation to the string portion longitudinal axis inclined abutment.
  • the support shoe is displaced radially by displacing the support shoe along the abutment.
  • the support shoe may be hydraulically axially displaceable relative to the string portion. Typically is the anchor displaced axially along the string portion together with the support shoe.
  • Multiple independent displaceable anchors may be connected to the string portion.
  • the positioning of the anchor relative to the drill bit may be adapted according to the type of drill string being used.
  • the anchor is normally arranged on the opposite side of the drive motor relative to the drill bit.
  • An anchor according to the invention being connected to a string portion contributes to be able to displace the string portion having a considerable weight in a borehole.
  • the invention also arranges to apply an axial drilling force from the anchor and to the drill bit and to be able to pull the whole string portion in the borehole.
  • the reference numeral 1 indicates a rock drilling machine working in a borehole 2.
  • the rock drilling machine 1 comprises a drilling portion 4 and a string portion 6 where the string portion 6 is provided with an anchor 8.
  • the drilling portion 4 comprises in this embodiment a drill bit 10, a gear 12 and a drive motor 14.
  • the string portion 6 comprises a hydraulic section 16 and an electric section 18.
  • the anchor 8 see Figs. 2 and 3 , comprises an anchor housing 24, which surrounds a guide pipe 26.
  • the guide pipe 26 forms a part of the string portion and has advantageously a cornered cross-section, generally square as in the embodiment shown.
  • the anchor housing 24 being provided with bearing material 28 abutting the guide pipe 26 is axially displaceable along the guide pipe.
  • the anchor 8 comprises four support shoes 30 distributed about the longitudinal axis 32 of the string portion 6.
  • Each support shoe 30 is by means of a first link 34 connected to the anchor housing 24 where the first link 34 is pivotally supported in a housing bracket 36.
  • the first link 34 is connected to the support shoe 30 by means of a shaft 38.
  • a second link 40 is pivotally connected to the support shoe 32 in the shaft 38.
  • the second link 40 is in its opposite end portion pivotally connected to a piston rod 44 of a hydraulic cylinder 42, and to a sliding attachment 46 which is displaceable relative to the anchor housing 24.
  • a hydraulic feed cylinder 48 is positioned within the guide pipe 26.
  • the feed cylinder 48 is connected to the string portion by means of piston rod attachment 50 and to the anchor 8 by means of a cylinder attachment 52 extending through longitudinal slots 54 in the guide pipe 26.
  • the cylinder attachment 52 is bolted to the anchor housing 24 by means of brackets 56. The cylinder attachment 52 is thus axially displaceable in the slots 54.
  • the anchor 8 is in Fig. 2 shown in a position where the anchor 8 is in one of its end positions relative to the string portion 6.
  • the support shoes 30 are retracted to their inactive positions.
  • the feed cylinder 48 displaces in its minus stroke the anchor 8 along the guide pipe 26 toward the other end position for the anchor 8, see Fig. 3 .
  • the hydraulic cylinder 42 displaces the sliding attachment 46 in a direction toward the housing bracket 36.
  • the first and the second links 34, 40 thereby cause the support shoe 30 to be displaced radially outward and be preloaded against the wall of the borehole 2.
  • the necessary hoses and cables for control and power supply are not shown, but are connected to not shown equipment in the hydraulic section 16 and the electric section 18.
  • Figs. 2 and 3 show a somewhat simplified anchor 8 compared to the anchor 8 in Fig. 1 , as all support shoes 30 in Fig. 1 are connected to a common ring cylinder 58.

Landscapes

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

Claims (8)

  1. Un ensemble comprenant une machine de forage de roche (1) pour forer des trous de forage (2) dans la roche, où la machine de forage de roche (1) comprend une partie forage (4) et une partie train de tiges (6), la partie forage (4) comprenant un trépan de forage (10) et un moteur d'entrainement (14) disposé pour faire tourner le trépan de forage (10), l'ensemble comprenant en outre des longueurs de tuyaux assemblées par vissage (20) et un dispositif de support à l'extérieur du trou de forage (2), auquel les longueurs de tuyaux assemblées par vissage (20) sont connectées, le dispositif de support étant conçu pour fournir une force de déplacement axiale à la machine de forage de roche (1) pour la progression du forage, dans lequel la partie train de tiges (6) est pourvue d'un ancrage (8) comprenant au moins un sabot de support (30) pouvant être pré-chargé contre le trou de forage (2) et pouvant être déplacé axialement par rapport à la partie train de tiges (6), caractérisé en ce que la machine de forage de roche (1) comprend en outre un cylindre d'alimentation (48) étant positionné à l'intérieur d'un tuyau de guidage (26) formant part de la partie train de tiges (6), et connectant la partie train de tiges (6) et l'ancrage (8) de manière axialement coulissable, dans lequel l'ancrage (8) comprend en outre un boîtier d'ancrage (24) auquel au moins un sabot de support (30) est connecté, le boîtier d'ancrage (24) entourant le tuyau de guidage (26) et étant déplaçable le long du tuyau de guidage (26).
  2. Un dispositif selon la revendication 1, caractérisé en ce que le sabot de support (30) est déplaçable de manière hydraulique entre une position non-active rétractée et une position active étendue où le sabot est en butée avec une paroi du trou de forage (2).
  3. Un dispositif selon la revendication 1, caractérisé en ce que de multiples sabots de support (30) qui sont distribués autour l'axe central (32) de la partie train de tiges (6) sont interconnectés mécaniquement pour pouvoir être déplacés de manière synchrone.
  4. Un dispositif selon la revendication 1, caractérisé en ce que le sabot de support (30) est connecté au boîtier d'ancrage (24) de l'ancrage (8) au moyen d'un premier lien (34).
  5. Un dispositif selon la revendication 1, caractérisé en ce que le sabot de support (30) est connecté à un cylindre hydraulique (42) au moyen d'un deuxième lien (40).
  6. Un dispositif selon la revendication 1, caractérisé en ce que le sabot de support (30) est en butée avec l'ancrage (8) à travers une butée inclinée en relation à l'axe central (32) de la partie train de tiges (6).
  7. Un dispositif selon la revendication 1, caractérisé en ce que le sabot de support (30) est connecté à l'ancrage (8) au moyen d'un cylindre dirigé radialement.
  8. Un dispositif selon la revendication 1, caractérisé en ce que le sabot de support (30) est déplaçable axialement de manière hydraulique par rapport à la partie train de tiges (6).
EP09758569.9A 2008-06-05 2009-05-29 Dispositif de forage de roche Active EP2350420B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20082641A NO333300B1 (no) 2008-06-05 2008-06-05 Anordning ved bergboremaskin
PCT/NO2009/000200 WO2009148322A1 (fr) 2008-06-05 2009-05-29 Dispositif de forage de roche

Publications (3)

Publication Number Publication Date
EP2350420A1 EP2350420A1 (fr) 2011-08-03
EP2350420A4 EP2350420A4 (fr) 2015-11-18
EP2350420B1 true EP2350420B1 (fr) 2018-02-21

Family

ID=41398281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09758569.9A Active EP2350420B1 (fr) 2008-06-05 2009-05-29 Dispositif de forage de roche

Country Status (3)

Country Link
EP (1) EP2350420B1 (fr)
NO (1) NO333300B1 (fr)
WO (1) WO2009148322A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20181428A1 (no) * 2018-01-02 2019-07-03 Norhard As Anordning ved tunnelboremaskin tilrettelagt for boreoperasjoner uten bemanning inne i borehullet
WO2019135682A1 (fr) * 2018-01-02 2019-07-11 Norhard As Dispositif au niveau d'une machine de forage de tunnel agencée pour des opérations de forage sans opérateurs dans le trou de forage

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088532A (en) * 1960-12-27 1963-05-07 Jersey Prod Res Co Bit loading device
DE1262938B (de) 1962-09-27 1968-03-14 Wolfgang Ebeling Dipl Ing Selbstfortschreitende Vorbohrmaschine
DE1758505A1 (de) * 1968-06-14 1971-03-25 Demag Ag Verfahren und Vorrichtung zum Vortreiben eines Schachtes mit einem Vortriebshilfsschacht
DE2733199A1 (de) * 1977-07-22 1979-02-01 Adolf Rotter Bohrvorrichtung zum einbringen von tiefbohrungen in erdreich, gestein u.dgl.
US4314615A (en) * 1980-05-28 1982-02-09 George Sodder, Jr. Self-propelled drilling head
US4463814A (en) * 1982-11-26 1984-08-07 Advanced Drilling Corporation Down-hole drilling apparatus
GB8401452D0 (en) * 1984-01-19 1984-02-22 British Gas Corp Replacing mains
US4700788A (en) * 1985-05-06 1987-10-20 Shell Oil Company Directional drilling pipelay
GB2183274B (en) * 1985-11-22 1988-08-10 Camco Inc Multiple line work performing apparatus
SU1514942A1 (ru) 1987-11-17 1989-10-15 Научно-Производственное Объединение Самоходной Горной Техники "Криворожрудмаш" Устройство дл бурени горных выработок
SE501283C2 (sv) 1993-05-06 1995-01-09 Lars Sterner Bergborrmaskin
NO940493D0 (no) 1994-02-14 1994-02-14 Norsk Hydro As Lokomotiv eller traktor for fremtrekking av utstyr i et rör eller borehull
DE4404712A1 (de) * 1994-02-15 1995-08-17 Preussag Anlagenbau Verfahren zum Ausbau eines Erdkerns aus einem grabenlos verlegten Rohr und Molch zur Durchführung des Verfahrens
US5794703A (en) * 1996-07-03 1998-08-18 Ctes, L.C. Wellbore tractor and method of moving an item through a wellbore
US5752572A (en) * 1996-09-10 1998-05-19 Inco Limited Tractor for remote movement and pressurization of a rock drill
WO2005090739A1 (fr) 2004-03-17 2005-09-29 Western Well Tool, Inc. Pince a genouillere pour chaines a rouleaux pour tracteur de fond de puits

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
NO333300B1 (no) 2013-04-29
NO20082641L (no) 2009-12-07
EP2350420A1 (fr) 2011-08-03
EP2350420A4 (fr) 2015-11-18
WO2009148322A1 (fr) 2009-12-10

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