EP1257723B1 - Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern - Google Patents

Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern Download PDF

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Publication number
EP1257723B1
EP1257723B1 EP01905482A EP01905482A EP1257723B1 EP 1257723 B1 EP1257723 B1 EP 1257723B1 EP 01905482 A EP01905482 A EP 01905482A EP 01905482 A EP01905482 A EP 01905482A EP 1257723 B1 EP1257723 B1 EP 1257723B1
Authority
EP
European Patent Office
Prior art keywords
drill bit
drilling
drill
jacket tube
rod assembly
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.)
Expired - Lifetime
Application number
EP01905482A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1257723A1 (de
Inventor
Josef Mocivnik
Karl BÖHM
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.)
Alwag Tunnelausbau GmbH
Techmo Entwicklungs und Vertriebs GmbH
Original Assignee
Alwag Tunnelausbau GmbH
Techmo Entwicklungs und Vertriebs 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, Techmo Entwicklungs und Vertriebs GmbH filed Critical Alwag Tunnelausbau GmbH
Priority to SI200130232T priority Critical patent/SI1257723T1/xx
Priority to AT01905482T priority patent/ATE282763T1/de
Publication of EP1257723A1 publication Critical patent/EP1257723A1/de
Application granted granted Critical
Publication of EP1257723B1 publication Critical patent/EP1257723B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Definitions

  • the present invention relates to a device for drilling, in particular percussion or rotary impact drilling, from Boreholes, comprising a drill bit with a drill or Mining area, a drill pipe for introducing a rotary and / or impact stress and for introducing a flushing or cooling fluids in the drill bit and a cladding tube, which a cavity between the drill pipe and the interior of the cladding tube defined and supported on the drill pipe or can be connected to the drill bit, in a drilling position the cladding tube at a distance from that of the mining area facing back of the drill bit is arranged.
  • Such devices for drilling, in particular percussion or Rotary impact drilling of boreholes are different Embodiments known, in any case for a removal of the mined material or cuttings to be concerned.
  • Drilling devices known in which, in a modification of embodiment mentioned above, no cladding tube or jacket tube is used, so that a removal in a simple manner of the mined material in a space around it Drill pipe can be made as the drill pipe usually smaller outer dimensions than that of the borehole defining or forming core bit.
  • a device of the type mentioned at the outset is, for example can be found in DE-C 40 06 320, in particular is aimed at the production of cased bores.
  • DE-C 44 32 710 discloses a target drilling device for horizontal directional drilling, being on a proper Piercing obstacles is targeted.
  • the dismantled material or the cuttings are made outside the cladding tube, if this has a correspondingly reduced outer diameter compared to the drill bit, but usually only relatively small free spaces are created, so that only relatively small pieces of mined material can be transported in this area.
  • Cladding tubes are used, the outer dimensions of which are only slightly from the outer dimensions of the drill bit differ because the cladding tube is at least partially Support or provisional lining of the borehole, especially with brittle rock, takes place in such devices, in which a comparative large passage space between the drill pipe and the interior of the cladding tube is defined Removal of excavated material or cuttings through this space or cavity or annulus between the Drill pipe and the inside of the cladding tube instead, wherein in this connection, for example, to AT-B 390 303, reference is made to EP-B 0 670 950 or WO 98/20229.
  • these known embodiments must be in addition to usual known passage openings for a flushing or Cooling fluid, which is on the foremost section or on the Mining area of the drill bit, usually at least another through opening either the surface of the drill bit or in a side section the same can be provided to introduce the material to be removed or mined in through the drill pipe and the inside of the cladding tube enable defined free space or cavity and in Another consequence is the removal of the mined material through to provide this cavity. It is immediate realizes that such very small pieces Material can be removed because it is only comparatively small openings in the area of the Drill bit or in a connection area between the drill bit and the cladding tube can be provided for insertion of mined material in the cavity between to enable the drill pipe and the cladding tube.
  • the present invention now aims at starting out a device of the type mentioned for drilling, especially impact or rotary impact drilling, of drill holes available with which a known removal of dismantled material or cuttings through a through the drill string and the interior of the cladding tube defined cavity or annulus is easier to carry out and with which in particular also dismantled material with larger dimensions without further introduced into this cavity or annulus or can be applied by this.
  • the device according to the invention is used to achieve these tasks for drilling, especially impact or rotary impact drilling of boreholes, characterized essentially by that the drill bit in a rinsing position for the Cavity between the cladding tube and the drill pipe with its back in contact with the one facing the drill bit Bring the front end of the cladding tube or with the front end of the cladding tube is connectable and that inside the drill bit a closure element is provided, which in the Drilling position at least one on the surface of the drill bit opening and in the rinsing position at least one passage opening to the back of the drill bit for dispensing the flushing fluid inside the cavity between the cladding tube and the drill pipe releases.
  • the cladding tube in a drilling position is located at a distance from the drill bit, behind the core bit, seen from the surface of the core bit. a free space is provided, which one accordingly large opening for inserting the dismantled Material or cuttings in the cavity or annulus between the drill pipe and the cladding tube, so that it is tailored to the dimensions of this cladding tube, comparatively coarse material easily into the cavity introduced and removed by this can.
  • material is further provided that in such a rinsing position the back of the Drill bit in contact with the front end facing the drill bit of the cladding tube can be brought or with the front end of the Cladding tube is connectable so that by introducing the cooling or rinsing fluids directly into this annulus or cavity a targeted and defined flushing of this hollow or annulus is achievable.
  • a closure element is provided, which in the drilling position at least one opening at the mining area Passage opening and in the rinsing position at least a passage opening leading to the rear for dispensing of the flushing fluid into the interior of the cavity between the Cladding tube and the drill pipe releases.
  • the drill bit for dispensing the flushing or cooling fluid only a comparatively small number of through openings required on the cutting surface of the drill bit, whereby for a simple flushing of the cladding tube between the Drill pipe and the cladding tube is provided that the drill bit at least one passage opening for dispensing of the flushing fluid in the area of the mining area and one Has passage opening, which in the area of the back the drill bit opens.
  • opening opening in the area of the back of the drill bit is in the rinsing position in which the The drill bit is in contact with the front end of the cladding tube or connected to it, a targeted and safe Introducing the flushing fluid into the interior of the cavity achieved, whereby the desired cleaning or rinsing effect reliable and with a comparatively small amount of fluid can be obtained.
  • closure element For a particularly small-sized and safe to operate An embodiment of the closure element is preferably provided that the closure element of one inside the Drill bit guided, one essentially central in the Drill bit running supply line for the flushing fluid surrounding Sleeve is formed, which counteracts a spring force through a pin or bolt element protruding from the surface in the drilling position inside the drill bit in The longitudinal direction of the same is displaceable.
  • Such a thing sleeve-shaped closure element can be correspondingly robust and be designed small, so that a reliable Operation even under the harsh operating conditions in a well is secured over long periods of time.
  • the cladding tube at its front end facing the drill bit Clearance between the drill pipe and its interior for an at least partial overlap of the area being mined opposite end of the drill bit defined, so that in such a position further penetration of degraded Material in this connection area between the Drill bit and the pipe is safely avoided and such no blockages for further use of the drill bit are to be feared.
  • a sleeve element can be optionally in Restrictions or constrictions to be provided inside the cladding tube of the passage cross section, which for example in the area of connectors between the individual parts the drill pipe and / or the cladding tube can occur, vote, so that it is ensured that itself with a comparatively large entry opening into the cavity blocking between the drill pipe and the cladding tube or wedging larger, dismantled pieces of material in the Inside the cladding tube is safely avoided.
  • the flushing fluid from compressed air or a liquid, especially water, is formed under pressure is also preferred for the device according to the invention provided that the flushing fluid from compressed air or a liquid, especially water, is formed under pressure is.
  • a particularly simple coupling of a drill bit with a the cladding tube surrounding the drill pipe can be above it also achieve that the drill bit in a central Inner part and an especially detachably coupled, the inner part surrounding the outer part in a ring is divided into how this is a further preferred embodiment corresponds to the device according to the invention.
  • 1 and 2 is generally 1 with a device for drilling, especially impact or rotary impact drilling, of a borehole schematically designated 2, the device 1 a generally designated 3 Drill bit, a drill string 4 and a surrounding the drill string Cladding tube 5 comprises, between the drill pipe 4 and the interior of the cladding tube 5, a cavity or Annulus 6 is defined. As can be seen in the drawing, is done by the between the outer circumference of the drill pipe 4 and the inside diameter or the inside of the Cladding tube 5 defined an annular space or cavity 6 a removal of dismantled, lumpy material or cuttings 7. In the drilling position shown in Fig.
  • connection area 9 for example of individual sections of the drill pipe, an enlarged compared to the rest of the drill string 4 Has outer diameter, in these areas an additional support of the usually one comparatively small thickness of cladding tube 5 with 10 is indicated.
  • Fig. 1 In the drilling position shown in Fig. 1 is a the inside of the drill pipe 4 in a known manner in the Area of the drill bit 3 introduced flushing or cooling fluid via through openings designated schematically with 12 and 13 on the drilling or excavation surface 14 of the drill bit 3 applied, which on the one hand rinsing and cooling the Mining area 14 takes place and on the other hand according to the Arrows 15 by returning the usually under Pressure introduced flushing or cooling fluid, which from Compressed air or, for example, water formed under pressure next to the drill bit 3 can be an application or Entrainment of mined material 7 into the cavity 6 takes place so that a directed and through the flushing fluid supported removal of the dismantled material or Drilling 7 takes place through the cavity 6.
  • the sleeve-shaped closure element 19 is also with a pin or bolt element 22 coupled, which in the rinsing position shown in Fig. 2 protrudes over the mining area 14 while it is in the drilling position shown in Fig. 1 in contact with the material 23 to be degraded and thus the sleeve-shaped Locking element 19 against the force of the spring 21 in the position shown in Fig. 1, in which the passage opening 17 through the closure element 19 is completed and again an application of the cooling fluid only through the surface 14 through openings 12 and 13 is possible.
  • the drill bit 3 essentially into a central middle part 24 and a surrounding central part 24 annular outer part 25 is divided, wherein for example formed by pin-like hard material inserts Dismantling tools and elements each indicated by 26 are.

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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
EP01905482A 2000-02-24 2001-02-21 Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern Expired - Lifetime EP1257723B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200130232T SI1257723T1 (en) 2000-02-24 2001-02-21 Device for drilling, especially percussion or rotary percussion drilling, holes
AT01905482T ATE282763T1 (de) 2000-02-24 2001-02-21 Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2892000 2000-02-24
AT2892000 2000-02-24
PCT/AT2001/000044 WO2001063085A1 (de) 2000-02-24 2001-02-21 Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern

Publications (2)

Publication Number Publication Date
EP1257723A1 EP1257723A1 (de) 2002-11-20
EP1257723B1 true EP1257723B1 (de) 2004-11-17

Family

ID=3486573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01905482A Expired - Lifetime EP1257723B1 (de) 2000-02-24 2001-02-21 Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern

Country Status (15)

Country Link
US (1) US6722454B2 (sk)
EP (1) EP1257723B1 (sk)
JP (1) JP2003525365A (sk)
KR (1) KR100609936B1 (sk)
AT (2) ATE282763T1 (sk)
AU (1) AU3348101A (sk)
CZ (1) CZ300268B6 (sk)
DE (1) DE50104538D1 (sk)
ES (1) ES2230272T3 (sk)
HR (1) HRPK20020690B3 (sk)
PL (1) PL196595B1 (sk)
SI (1) SI1257723T1 (sk)
SK (1) SK286787B6 (sk)
TW (1) TW528832B (sk)
WO (1) WO2001063085A1 (sk)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4036756B2 (ja) * 2001-04-26 2008-01-23 “アールバーク”・トウンネーラウスバーウ・ゲゼルシヤフト・エム・ベー・ハー 孔を開けてその孔に支持体を固定する方法および装置
DE602004023058D1 (de) * 2003-03-13 2009-10-22 Robert Tessari Verfahren und vorrichtung zum bohren eines bohrlochs mit einem bohrloch-liner
AT500691B1 (de) * 2003-10-08 2008-07-15 Alwag Tunnelausbau Gmbh Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial
CN102216552B (zh) * 2008-09-17 2015-08-26 Jfk设备有限公司 钻孔装置
FI126596B (fi) 2014-01-20 2017-02-28 Lehti Group Oy Teräkruunu
CN104989282A (zh) * 2015-08-17 2015-10-21 罗金泉 一种喷射钻头
CN107060648A (zh) * 2017-05-17 2017-08-18 福建岩土工程勘察研究院 软土地基激振打井装置及其施工方法
CN113027340B (zh) * 2021-04-15 2022-03-04 山东大学 一种适用于滨海岩溶区的钻孔设备及工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746721A (en) * 1951-10-01 1956-05-22 Exxon Research Engineering Co Apparatus for drilling
US3382934A (en) * 1966-03-03 1968-05-14 Ingersoll Rand Co Downhole drill for submarine drilling
DE8509145U1 (de) 1985-03-27 1985-05-15 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Bohrvorrichtung
DE3902868C1 (sk) * 1989-02-01 1990-06-07 Eastman Christensen Co., Salt Lake City, Utah, Us
DE4006320C1 (en) * 1990-03-01 1991-10-02 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim, De Straight line tunnel borer - has guide tube to which casing is connected with load-out conveyor
FI95618C (fi) 1992-12-03 1998-09-03 Jorma Jaervelae Porauslaitteisto
DE4432710C1 (de) * 1994-09-14 1996-04-11 Klemm Bohrtech Zielbohreinrichtung zum horizontalen Richtbohren
US5839519A (en) 1996-11-08 1998-11-24 Sandvik Ab Methods and apparatus for attaching a casing to a drill bit in overburden drilling equipment
SK283483B6 (sk) 1996-11-12 2003-08-05 Techmo Entwicklungs-Und Vertriebs Gmbh Spôsob vŕtania a zariadenie na vykonávanie spôsobu
US6106200A (en) * 1996-11-12 2000-08-22 Techmo Entwicklungs-Und Vertriebs Gmbh Process and device for simultaneously drilling and lining a hole

Also Published As

Publication number Publication date
ATE282763T1 (de) 2004-12-15
PL196595B1 (pl) 2008-01-31
SI1257723T1 (en) 2005-02-28
KR20020086575A (ko) 2002-11-18
HRPK20020690B3 (en) 2005-06-30
JP2003525365A (ja) 2003-08-26
DE50104538D1 (de) 2004-12-23
HRP20020690A2 (en) 2003-12-31
WO2001063085A1 (de) 2001-08-30
AU3348101A (en) 2001-09-03
SK11112002A3 (sk) 2003-01-09
ES2230272T3 (es) 2005-05-01
US20030079915A1 (en) 2003-05-01
CZ20022584A3 (cs) 2003-02-12
US6722454B2 (en) 2004-04-20
EP1257723A1 (de) 2002-11-20
TW528832B (en) 2003-04-21
PL356816A1 (en) 2004-07-12
KR100609936B1 (ko) 2006-08-04
CZ300268B6 (cs) 2009-04-08
SK286787B6 (sk) 2009-05-07
AT5717U1 (de) 2002-10-25

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