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WO2009007494A1 - Ensemble foret - Google Patents

Ensemble foret Download PDF

Info

Publication number
WO2009007494A1
WO2009007494A1 PCT/FI2008/000087 FI2008000087W WO2009007494A1 WO 2009007494 A1 WO2009007494 A1 WO 2009007494A1 FI 2008000087 W FI2008000087 W FI 2008000087W WO 2009007494 A1 WO2009007494 A1 WO 2009007494A1
Authority
WO
WIPO (PCT)
Prior art keywords
bit
ring
pilot
casing tube
extension
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.)
Ceased
Application number
PCT/FI2008/000087
Other languages
English (en)
Inventor
Mikko Mattila
Pekka Salmi
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.)
Robit PLC
Original Assignee
Robit Rocktools Ltd Oy
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 Robit Rocktools Ltd Oy filed Critical Robit Rocktools Ltd Oy
Priority to CA2693781A priority Critical patent/CA2693781A1/fr
Priority to EP08787686.8A priority patent/EP2198110B1/fr
Priority to BRPI0814214-9A2A priority patent/BRPI0814214A2/pt
Priority to KR1020107003054A priority patent/KR101678358B1/ko
Priority to ES08787686.8T priority patent/ES2625464T3/es
Priority to US12/668,323 priority patent/US20100200303A1/en
Priority to JP2010515539A priority patent/JP5443349B2/ja
Publication of WO2009007494A1 publication Critical patent/WO2009007494A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • 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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

Definitions

  • the invention relates to a bit assembly in a drilling apparatus said apparatus working by hammering and/or rotating said assembly comprising of a pilot bit, drilling the central part of the hole and a ring bit fitted in connection with the said pilot bit and furnished with cylindrical inner surface drilling the outer surface of said hole, and further, between the pilot bit and the ring bit a blocking arrangement of mutual rotation and axial movement, whereby opening of said blocking arrangement makes it possible to pull the pilot bit off the hole, while the ring bit remains in the hole, and the bit assembly comprises a casing tube and its extension, and an interlocking system which is through a ring-shaped device from the extension of the casing tube adapted to transfer pulling force from the pilot or ring bit to the casing tube extension, and said interlocking system can be opened in order to continue drilling with the ring and pilot bits, when the casing tube remains in its place.
  • the ring On its inner surface the ring has grooves, and respectively there are elevation parts on the outer surface of the bit in order to produce mutual locking.
  • the making of elevation parts on the cylindrical bit surface will be difficult.
  • even on the pilot bit surface often formed flushing grooves are in this solution not utilized.
  • the tube extension In connection with the casing tube the tube extension is not used, but a cantilever ring, whereby the other axial direction remains unlocked. This results in difficulty, because if the casing tube is left too early in the hole the "finding" of it along again by means of the bits does not work, since the ring that pulls the casing tube cannot with the bit be returned into locking when it inside the casing tube escapes the bit.
  • a new bit assembly is developed, characteristic of which is that a ring like device comprises parts directed to the inside, by means of which said device is permissively fitted to rotate into the traverse groove on the outer surface of either the pilot or ring bit so that its motion is limited or blocked, in both axial directions.
  • the advantage of the invention is that the casing tube, which during drilling is pulled into the hole can be left in the hole in the place wanted, for instance on hitting the rock, without pulling the drilling apparatus occasionally from the hole.
  • the pilot and also ring bits continue drilling without the casing tube therewith the diameter of the drilled hole remains unchanged.
  • the ring bit which is often to be left in a finished hole, can for its part be made material saving, since the pulling system that pulls the casing tube into the hole comes in this solution around the pilot bit.
  • the casing tube is pulled by means of the pilot bit and not the ring bit the hammering surfaces between pilot and ring bits can be remarkably smaller in regard to former solutions, whereby the wall thickness of the pilot bit in its cylindrical portion can also be made smaller.
  • the hammering faces between the ring like device according to the invention and the casing tube extension are easily made bigger, which extends the durability of the pilot bit.
  • the ring like device can advantageously be locked on the pilot bit outer surface so that by locking at least apart of the flushing grooves or of the ring bit grooves on the pilot bit outer surface are utilized. This is possible, since according to the invention, the ring like device comprises on its inner surface elevating parts directed to the inside.
  • Figure 1 presents a pilot bit of a drilling apparatus shown diagonally
  • Figure 2 presents a pilot bit of a drilling apparatus with a ring bit fitted in it
  • Figure 3 presents a drilling apparatus, where a ring like device that transmits pulling force to a casing tube is fitted for a pilot bit.
  • Figure 4 presents a bit assembly of a drilling apparatus
  • Figure 5 presents parts of a bit assembly loose.
  • the figure 1 shows a pilot bit 1, comprising of a stem 13, a percussion face 14 furnished with bit buttons and a cylindrical portion 16, which has longitudinal grooves, such as flushing grooves 12 and grooves 17 lower than former ones intended for locking as well as transverse grooves 10 for locking.
  • the front edge of the cylindrical portion 16 is as to its diameter a smaller cylindrical portion.
  • the drill waste flushing grooves 12 are deeper than the longitudinal ones on the pilot bit surface.
  • Figure 2 shows a ring bit 2 put in place around pilot bit 1.
  • the parts like locking claws 7 and 15 are locking said bits 1 and 2 mutual unrotatable in one rotation direction and additionally mutual immovable in both axial directions.
  • Figure 3 shows the ring like device 8 that transmits percussion or pulling force to the casing tube and is installed around the pilot bit 1.
  • the pilot bit longitudinal low grooves 17 as well as from them outgoing transverse grooves 10.
  • On the inner surface of device belongs from the inner surface projecting parts 9, which are fitted to run in said longitudinal grooves 17 and further when hitting traverse grooves 10, so that device 8 adheres like a bayonet coupling around the pilot bit 1.
  • the device becomes also detachable from above the pilot bit 1.
  • Figure 4 shows a section view of a casing extension 6 which is to be welded in the end of the casing tube, which is fixed around the ring like device, for instance by shrinking, whereby the shrinking joint is left loose so that mutual rotation is possible for the parts. However, they will in axial directions be locked to each other, but for them a small mutual clearance 5 - 10 mm in the axial direction is remained.
  • the casing tube is not shown, but it is by a known way, for instance, fixed by welding fixed to the extension 6.
  • Figure 5 shows the loose components according to the invented structure.
  • the inner projecting parts 9 of the ring like device 8 there are grooves 10 on the cylindrical portion of the pilot bit 1, into which grooves the parts 9 can screwed by a small rotary motion of one of them.
  • the pilot bit 1 can also be threaded through the device 8 in both directions.
  • the ring bit 2 must always be left in the ending hole, if even the casing tube, inclusive its extension 6, is left in the hole.

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

La présente invention concerne un ensemble foret dans un appareil de forage, qui fonctionne en martelant et/ou en faisant tourner ledit ensemble, qui est constitué d'un foret pilote (1) qui fore la partie centrale du trou et un foret annulaire (2), raccordé audit foret pilote (1) et équipé d'une surface intérieure cylindrique qui fore la surface extérieure dudit trou, et en outre, entre le foret pilote (1) et le foret annulaire (2), un agencement de blocage de mouvement mutuel de rotation et axial, moyennant quoi l'ouverture dudit agencement de blocage permet de tirer le foret pilote (5) à partir du trou, alors que le foret annulaire (2) reste dans le trou, et l'ensemble foret comprend un chemisage et son extension (6) et un système d'enclenchement qui se trouve dans un dispositif annulaire (8) à partir de l'extension (6) du chemisage conçu pour transférer la force de traction du foret pilote ou foret annulaire vers l'extension du chemisage (6), et ledit système d'enclenchement peut être ouvert afin de continuer de forer avec les forets annulaire et pilote (1, 2) lorsque le chemisage reste en place. Le dispositif annulaire (8) comprend des pièces orientées vers l'extérieur au moyen desquelles ledit dispositif peut être adpaté de façon à tourner dans la rainure transversale (10) de la surface extérieure du foret pilote ou du foret annulaire de sorte que son mouvement soit limité ou bloqué, dans les deux directions axiales.
PCT/FI2008/000087 2007-07-10 2008-07-10 Ensemble foret Ceased WO2009007494A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA2693781A CA2693781A1 (fr) 2007-07-10 2008-07-10 Ensemble foret
EP08787686.8A EP2198110B1 (fr) 2007-07-10 2008-07-10 Ensemble foret
BRPI0814214-9A2A BRPI0814214A2 (pt) 2007-07-10 2008-07-10 Conjunto de brocas
KR1020107003054A KR101678358B1 (ko) 2007-07-10 2008-07-10 비트 조립체
ES08787686.8T ES2625464T3 (es) 2007-07-10 2008-07-10 Conjunto de broca
US12/668,323 US20100200303A1 (en) 2007-07-10 2008-07-10 Bit assembly
JP2010515539A JP5443349B2 (ja) 2007-07-10 2008-07-10 ビット組立体

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20070540A FI20070540A0 (fi) 2007-07-10 2007-07-10 Teräsovitelma
FI20070540 2007-07-10

Publications (1)

Publication Number Publication Date
WO2009007494A1 true WO2009007494A1 (fr) 2009-01-15

Family

ID=38331557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2008/000087 Ceased WO2009007494A1 (fr) 2007-07-10 2008-07-10 Ensemble foret

Country Status (9)

Country Link
US (1) US20100200303A1 (fr)
EP (1) EP2198110B1 (fr)
JP (1) JP5443349B2 (fr)
KR (1) KR101678358B1 (fr)
BR (1) BRPI0814214A2 (fr)
CA (1) CA2693781A1 (fr)
ES (1) ES2625464T3 (fr)
FI (1) FI20070540A0 (fr)
WO (1) WO2009007494A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012049353A1 (fr) * 2010-10-15 2012-04-19 Robit Rocktools Ltd Ensemble foret
WO2015011336A1 (fr) * 2013-07-26 2015-01-29 Oy Atlas Copco Rotex Ab Procédé permettant de préparer un appareil de forage de fond de trou, et appareil de forage de fond de trou
EP3417141A4 (fr) * 2016-02-17 2019-09-18 Geonex Oy Appareil de forage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104453707A (zh) * 2014-12-15 2015-03-25 中煤科工集团西安研究院有限公司 矿山事故井下大直径水平救援的钻孔成孔装置及成孔方法
CN106285529B (zh) * 2015-05-11 2019-04-05 中国石油化工股份有限公司 一种丢手装置
US11499376B2 (en) * 2017-07-24 2022-11-15 Luc Charland Drilling system and method of using same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996018798A1 (fr) * 1994-12-13 1996-06-20 Ilomaeki Valto Procede de forage et ensemble trepan pour la realisation de ce procede
FI98649C (fi) * 1995-11-06 1997-07-25 Valto Ilomaeki Menetelmä reiän poraamiseksi ja sovitelma menetelmän toteuttamiseksi
WO1999007977A1 (fr) * 1997-08-08 1999-02-18 Sandvik Ab (Publ) Outil de forage fond de puits, alesoir et element de corps utilises avec cet outil
JP2002013379A (ja) * 2000-04-25 2002-01-18 Mitsubishi Materials Corp 掘削工具
WO2003004824A1 (fr) * 2001-07-02 2003-01-16 Loef Uno Dispositif de forage
WO2004057148A1 (fr) * 2002-12-23 2004-07-08 Robit Rocktools Ltd Ensemble trepan
JP2006104766A (ja) * 2004-10-05 2006-04-20 Kajima Corp 削孔装置
JP2006291660A (ja) * 2005-04-14 2006-10-26 Okabe Co Ltd 二重管削孔装置及び小口径二重管削孔装置を用いたアンカー材設置方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995034740A1 (fr) * 1994-06-10 1995-12-21 Ilomaeki Valto Appareil de forage
JP2997998B2 (ja) * 1995-10-23 2000-01-11 ヤマモトロックマシン株式会社 ケーシング掘ビット
DE69831021T2 (de) * 1998-11-23 2006-04-20 Oy Atlas Copco Rotex Ab Verfahren zum anbringen eines futterrohrschuhs an einer bohrvorrichtung
JP2000204870A (ja) * 1999-01-19 2000-07-25 Kfc Ltd 削孔装置
JP3755124B2 (ja) * 2000-10-30 2006-03-15 株式会社間組 削孔ビット

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996018798A1 (fr) * 1994-12-13 1996-06-20 Ilomaeki Valto Procede de forage et ensemble trepan pour la realisation de ce procede
FI98649C (fi) * 1995-11-06 1997-07-25 Valto Ilomaeki Menetelmä reiän poraamiseksi ja sovitelma menetelmän toteuttamiseksi
WO1999007977A1 (fr) * 1997-08-08 1999-02-18 Sandvik Ab (Publ) Outil de forage fond de puits, alesoir et element de corps utilises avec cet outil
JP2002013379A (ja) * 2000-04-25 2002-01-18 Mitsubishi Materials Corp 掘削工具
WO2003004824A1 (fr) * 2001-07-02 2003-01-16 Loef Uno Dispositif de forage
WO2004057148A1 (fr) * 2002-12-23 2004-07-08 Robit Rocktools Ltd Ensemble trepan
JP2006104766A (ja) * 2004-10-05 2006-04-20 Kajima Corp 削孔装置
JP2006291660A (ja) * 2005-04-14 2006-10-26 Okabe Co Ltd 二重管削孔装置及び小口径二重管削孔装置を用いたアンカー材設置方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2198110A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012049353A1 (fr) * 2010-10-15 2012-04-19 Robit Rocktools Ltd Ensemble foret
CN103261558A (zh) * 2010-10-15 2013-08-21 机器人凿岩钻具有限责任公司 钻孔机
EP2627851A4 (fr) * 2010-10-15 2017-12-27 Robit Rocktools LTD. Ensemble foret
WO2015011336A1 (fr) * 2013-07-26 2015-01-29 Oy Atlas Copco Rotex Ab Procédé permettant de préparer un appareil de forage de fond de trou, et appareil de forage de fond de trou
US9970238B2 (en) 2013-07-26 2018-05-15 Oy Atlas Copco Rotex Ab Method in putting together of a down-the-hole drilling apparatus and a down-the-hole drilling apparatus
EP3417141A4 (fr) * 2016-02-17 2019-09-18 Geonex Oy Appareil de forage

Also Published As

Publication number Publication date
EP2198110B1 (fr) 2017-02-15
EP2198110A4 (fr) 2015-12-23
JP5443349B2 (ja) 2014-03-19
EP2198110A1 (fr) 2010-06-23
JP2010533250A (ja) 2010-10-21
KR20100043222A (ko) 2010-04-28
KR101678358B1 (ko) 2016-11-23
US20100200303A1 (en) 2010-08-12
BRPI0814214A2 (pt) 2015-01-27
FI20070540A0 (fi) 2007-07-10
CA2693781A1 (fr) 2009-01-15
ES2625464T3 (es) 2017-07-19

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