EP3336301A1 - Perforatrice rotative et procédé de fabrication d'un alésage - Google Patents

Perforatrice rotative et procédé de fabrication d'un alésage Download PDF

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Publication number
EP3336301A1
EP3336301A1 EP16205044.7A EP16205044A EP3336301A1 EP 3336301 A1 EP3336301 A1 EP 3336301A1 EP 16205044 A EP16205044 A EP 16205044A EP 3336301 A1 EP3336301 A1 EP 3336301A1
Authority
EP
European Patent Office
Prior art keywords
drilling tool
rotary drilling
soil material
discharge line
hammer
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
EP16205044.7A
Other languages
German (de)
English (en)
Other versions
EP3336301B1 (fr
Inventor
Sebastian Bauer
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 EP16205044.7A priority Critical patent/EP3336301B1/fr
Priority to KR1020197016971A priority patent/KR102328874B1/ko
Priority to CN201780078760.6A priority patent/CN110062834B/zh
Priority to US16/469,275 priority patent/US10934779B2/en
Priority to PCT/EP2017/080474 priority patent/WO2018114230A1/fr
Publication of EP3336301A1 publication Critical patent/EP3336301A1/fr
Application granted granted Critical
Publication of EP3336301B1 publication Critical patent/EP3336301B1/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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/02—Drives for drilling with combined rotary and percussive action the rotation being continuous
    • E21B6/04—Separate drives for percussion and 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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • 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
    • E21B10/00—Drill bits
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • 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
    • E21B6/00—Drives for drilling with combined rotary and percussive action

Definitions

  • the invention relates to a rotary drilling tool for creating a bore in the ground, having a base body, a removal device arranged on an underside of the base body, which has at least one hammer unit comprising an axially reversing driven hammer element, and a discharge line for discharging removed soil material and drilling suspension, according to the preamble of claim 1.
  • the invention further relates to a method for creating a hole in the ground with a rotary drilling tool, in which soil material is removed by means of a removal device on an underside of a base body of the rotary drilling tool and soil material and drilling suspension removed by means of a discharge line, wherein the removal device has at least one hammer unit, in which a hammer element is driven in an axially reversing manner, according to the preamble of claim 12.
  • a generic rotary drilling tool goes out of the EP 2 592 214 A1 out.
  • this rotary drilling tool several hammer units are provided with axially reversible movable hammer elements, which are driven by compressed air.
  • a striking movement of the hammer elements is generated, whereby hard soil, especially rock, can be removed.
  • Spent compressed air can emerge at a lower area of the hammer units, whereby the compressed air is used to convey away removed soil material and drilling suspension in the so-called air lifting process.
  • the released compressed air can flow up through discharge lines. Soil material and drilling suspension are discharged upwards out of the borehole.
  • a drilling apparatus which can be disposed within a support tube and clamped to the inside of the drill pipe to create the bore.
  • a rotary drive, a feed drive, a clamping device for clamping the housing in the support tube and other units for supplying and discharging suspensions are arranged. The removal of the soil material via rotating cutting devices.
  • Drilling tools with rotating cutting teeth are suitable for processing soils with low or medium strength, with soil material in particular being peeled off.
  • soil material in particular being peeled off.
  • the invention has for its object to provide a rotary drilling tool and a method for creating a hole in the ground, with which particularly in a hard soil material, a particularly good removal rate is achieved.
  • the rotary drilling tool according to the invention is characterized in that a pumping device is arranged on the base body along the discharge line and that the pumping device is designed for pumping the removed soil material with drilling suspension through the discharge line.
  • a basic idea of the invention is based on the finding that it is of essential importance for a good removal rate in the case of hammer units with reversely driven hammer elements that these hammer elements strike the impending hard ground material as directly as possible. As a result, the impact energy can be efficiently converted into punctual overloads of the soil material which leads to a chipping or blasting off of the pending soil material.
  • the hammer unit can be driven in any manner, such as by means of electrical energy or by means of a hydraulic fluid. It is particularly advantageous, according to an embodiment of the invention, that the at least one hammer unit is operated with compressed air, which is supplied via a supply line.
  • the compressed air is supplied from outside the borehole from a compressor, which is preferably arranged on the drill, through which a rotary motion is also applied to the rotary drilling tool.
  • a preferred embodiment of the invention consists in that an outlet opening for used compressed air is provided at a lower end region of the at least one hammer unit.
  • the used compressed air thus also enters the area in which the soil removal takes place.
  • the compressed air can flow upwards in the borehole filled with drilling suspension for the removal of removed soil material.
  • the upward flowing compressed air entrains to some extent abraded soil material and drilling slurry.
  • the flow which is generated by the pumping device, can be supported.
  • any suitable pump can be used as pumping device, in particular a screw pump.
  • One or more pumps may be provided.
  • a further preferred embodiment of the invention is that the hammer element has a vertically oriented piston, which is displaceably mounted in a cylinder housing of the hammer unit.
  • the rotary drilling tool can have a plurality of hammer units, which are of the same design.
  • the hammer units may be formed in a modular manner from the cylinder housing with the piston mounted therein. In this case, the supply and discharge of compressed air is controlled so that an up and down movement of the piston is achieved with a desired frequency.
  • the hammer units are arranged in a substantially cylindrical housing of the rotary drilling tool.
  • a preferred embodiment of the invention can be seen in that the pumping device is arranged above the removal device in a housing.
  • the housing can extend a cylindrical base body with the removal device upwards.
  • the pumping means is preferably arranged centrally. From outside the borehole, energy for operating the pumping device from outside the borehole can be supplied via a power supply line, in particular an electrical line or a pressurized fluid line.
  • a rotating drilling tool can be provided in a basically known manner, a so-called rotary feedthrough or a rotary contact with an annular contact strip, so that can be transmitted from a fixed energy supply from the outside energy to the rotating drilling tool.
  • a connecting device for a drill string is arranged on an upper side of the housing.
  • the connecting device may in particular be a so-called Kellybox for connecting a Kelly drill pipe.
  • Other mechanical connecting means for non-rotatable connection of the rotary drilling tool with a drill string can be used.
  • a particularly efficient extraction of removed soil material is achieved according to a development of the invention in that the pumping device is arranged on a central portion of the discharge line and that divides the discharge line below the central portion into a plurality of discharge lines.
  • the pumping device is thus arranged centrally on an approximately central portion of the discharge line, wherein the suction power of the pump can be divided into a plurality of discharge lines below the central portion.
  • each suction opening is connected to a discharge line, which leads to the central portion with the pumping device. Via several suction openings, the processed soil material can be sucked off particularly reliably over the entire drill section and removed upwards.
  • a possible embodiment of the rotary drilling tool according to the invention is that the rotary drilling tool is designed as a full-cut drilling tool.
  • the downwardly directed end face of the rotary drilling tool is substantially plate-shaped, wherein a plurality of hammer elements project for removing the pending floor. With a simultaneous turning of the rotary drilling tool can take place as a particularly large-scale tillage.
  • the rotary drilling tool is designed as a core drilling tool.
  • the hammer units as Abtrags Road along an annular edge region of the body.
  • the core can break off due to the lateral forces occurring during drilling from a certain length on its own.
  • an active device for breaking or processing of the drill core can also be provided.
  • the drill core can be removed from the well with the rotary drill or a separate core catcher.
  • a power supply line is provided, with which the pumping device is supplied to the main body with energy, in particular electrical or hydraulic energy.
  • the pumping device can be operated particularly reliable. Also, without further adjustment of the pump power as needed.
  • the pumping device can also be done by tapping torque from the drill string.
  • the inventive method is characterized in that a pumping device is arranged on a base body of the rotary drilling tool along the discharge line, with which the removed soil material is pumped with drilling suspension through the discharge line to the outside of a wellbore.
  • the inventive method is preferably carried out with the rotary drilling tool according to the invention, as previously described.
  • the advantages described above can be achieved, in particular with regard to a high removal rate.
  • a preferred variant of the method according to the invention is that the hammer unit is operated with compressed air, which exits at an underside of the main body.
  • the escaping compressed air may assist in transporting removed soil material with drilling suspension up into the discharge line.
  • a particularly reliable suction is achieved by a further process variant of the invention in that the removed soil material and the drilling suspension are sucked through a plurality of suction openings and a plurality of suction lines, which open into a central portion on which the pumping device is arranged.
  • the suction power of the pump is distributed over several partial suction lines and several drainage holes. This promotes a reliable and rapid removal of the removed soil material.
  • the rotary drilling tool 10 is designed as a core drilling tool with an annular arrangement of the removal device 20 around a central hollow core receptacle 16.
  • the removal device 20 has in the illustrated embodiment, six equally trained hammer units 22 with a circular disk-shaped hammer element 24.
  • On the underside of the axially movable hammer elements 24 Abtragsiata not shown are arranged, which are preferably tapered cemented carbide elements.
  • suction openings 38 are arranged for sucking the removed soil material with surrounding Bohrsuspension.
  • the suction openings 38 are inclined in a rotational direction, in order to achieve the best possible material absorption.
  • the rotary drilling tool 10 has a cylindrical housing 14, at the upper end of which a connecting device 50 for a drill pipe is attached.
  • the connecting device 50 is preferably designed as a so-called Kellybox for receiving a square of a drill pipe.
  • the individual hammer units 22 an elongated cylindrical cylinder housing 28 in which a piston 26 is reversibly mounted between a lower impact position and an upper retracted position.
  • piston 26 At a lower end of the only hinted in Fig. 3 shown piston 26, the disc-shaped hammer member 24 is mounted.
  • the hammer units 22 are supplied via a supply line 29 with compressed air.
  • the transverse line 27 is formed between two cover plates. At a lower end region of the hammer units 22, used compressed air can escape at the underside of the main body 12 of the rotary drilling tool 10.
  • FIGS. 4 to 7 a second rotary drilling tool 10 according to the invention is shown, which is designed as a full-cut drilling tool.
  • the rotary drilling tool 10 has a cylindrical housing 14, at the lower end of which a removal device 20 is arranged, which extends substantially transversely across a circular disk-shaped base plate 18.
  • the removal device 20 is formed from a plurality of hammer units 22 with circular-disk-shaped hammer elements 24.
  • two radially extending slot-shaped suction openings 38 are arranged for the suction of abraded soil material and surrounding soil suspension to the bottom plate 18.
  • a kelly box is mounted as a drill string connecting device 50.
  • the rod-shaped hammer units 22 are arranged with their respective cylinder housings 28. Within the cylinder housing 28 are driven by compressed air piston 26 for exerting a striking motion on the upcoming working face axially reversing. At the lower ends of the piston 26 disc-shaped hammer elements 24 are mounted with Abtrags instituten not shown.
  • the pumping device 40 has two separate pumps 41, each pump 41 is conductively connected via a separate discharge line 30 with a suction opening 38.
  • an upwardly extending supply line 29 is provided, which opens in its lower region into a central pipe section 25, which is formed below the connecting device 50. Passed compressed air is passed from the pipe section 25 via a formed in a cover plate 17 transverse line 27 to the individual hammer units 22.
  • the rotary drilling tool 10 is rotationally driven via a drill string, not shown, so that the removal device 20 with the hammer units 22 sweeps over the entire upcoming working face.

Landscapes

  • 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)
  • Earth Drilling (AREA)
EP16205044.7A 2016-12-19 2016-12-19 Perforatrice rotative et procédé de fabrication d'un alésage Active EP3336301B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16205044.7A EP3336301B1 (fr) 2016-12-19 2016-12-19 Perforatrice rotative et procédé de fabrication d'un alésage
KR1020197016971A KR102328874B1 (ko) 2016-12-19 2017-11-27 보어를 생성하기 위한 회전 드릴링 공구 및 방법
CN201780078760.6A CN110062834B (zh) 2016-12-19 2017-11-27 用于产生孔的旋转钻具和方法
US16/469,275 US10934779B2 (en) 2016-12-19 2017-11-27 Rotary drilling tool and method for producing a bore
PCT/EP2017/080474 WO2018114230A1 (fr) 2016-12-19 2017-11-27 Outil de forage rotatif et procédé permettant de produire un trou de forage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16205044.7A EP3336301B1 (fr) 2016-12-19 2016-12-19 Perforatrice rotative et procédé de fabrication d'un alésage

Publications (2)

Publication Number Publication Date
EP3336301A1 true EP3336301A1 (fr) 2018-06-20
EP3336301B1 EP3336301B1 (fr) 2023-09-13

Family

ID=57570695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16205044.7A Active EP3336301B1 (fr) 2016-12-19 2016-12-19 Perforatrice rotative et procédé de fabrication d'un alésage

Country Status (5)

Country Link
US (1) US10934779B2 (fr)
EP (1) EP3336301B1 (fr)
KR (1) KR102328874B1 (fr)
CN (1) CN110062834B (fr)
WO (1) WO2018114230A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4008877A1 (fr) 2020-12-07 2022-06-08 Eurodrill GmbH Dispositif d'entraînement de forage pour un appareil de forage du sol

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3336301B1 (fr) * 2016-12-19 2023-09-13 BAUER Maschinen GmbH Perforatrice rotative et procédé de fabrication d'un alésage
US12031385B2 (en) 2019-07-24 2024-07-09 Herrenknecht Ag Drill head and method for producing a vertical borehole in the ground
DE102019120019A1 (de) * 2019-07-24 2021-01-28 Herrenknecht Ag Bohrkopf für das Erstellen einer Bohrung im Boden

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191013575A (en) * 1910-06-04 1911-06-01 Elisha Tippett Improvements in or relating to Rock-drilling Machines, for Removing the Detritus or Cuttings from the Holes Formed therewith.
WO1983000183A1 (fr) * 1981-07-13 1983-01-20 Karl-Erik Nyman Perforatrice hydraulique au rochet
EP2592214A1 (fr) 2011-11-10 2013-05-15 Chuan Home Machinery Co., Ltd. Marteau perforateur pneumatique réutilisant la pression de l'air
EP2597249A1 (fr) * 2011-11-24 2013-05-29 Bauer Spezialtiefbau GmbH Dispositif et procédé pour créer un forage vertical
EP2703596B1 (fr) 2012-08-31 2015-02-18 BAUER Maschinen GmbH Dispositif de forage et procédé d'établissement d'un forage

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KR101627822B1 (ko) * 2014-09-19 2016-06-07 광성지엠(주) 케이싱을 구비한 역순환 천공비트장치
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191013575A (en) * 1910-06-04 1911-06-01 Elisha Tippett Improvements in or relating to Rock-drilling Machines, for Removing the Detritus or Cuttings from the Holes Formed therewith.
WO1983000183A1 (fr) * 1981-07-13 1983-01-20 Karl-Erik Nyman Perforatrice hydraulique au rochet
EP2592214A1 (fr) 2011-11-10 2013-05-15 Chuan Home Machinery Co., Ltd. Marteau perforateur pneumatique réutilisant la pression de l'air
EP2597249A1 (fr) * 2011-11-24 2013-05-29 Bauer Spezialtiefbau GmbH Dispositif et procédé pour créer un forage vertical
EP2703596B1 (fr) 2012-08-31 2015-02-18 BAUER Maschinen GmbH Dispositif de forage et procédé d'établissement d'un forage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4008877A1 (fr) 2020-12-07 2022-06-08 Eurodrill GmbH Dispositif d'entraînement de forage pour un appareil de forage du sol
US11719045B2 (en) 2020-12-07 2023-08-08 Eurodrill Gmbh Drill drive device for an earth drilling apparatus

Also Published As

Publication number Publication date
WO2018114230A1 (fr) 2018-06-28
US20200102790A1 (en) 2020-04-02
KR102328874B1 (ko) 2021-11-18
EP3336301B1 (fr) 2023-09-13
CN110062834A (zh) 2019-07-26
KR20190085034A (ko) 2019-07-17
CN110062834B (zh) 2021-09-28
US10934779B2 (en) 2021-03-02

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