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EP2198110A1 - Ensemble foret - Google Patents

Ensemble foret

Info

Publication number
EP2198110A1
EP2198110A1 EP08787686A EP08787686A EP2198110A1 EP 2198110 A1 EP2198110 A1 EP 2198110A1 EP 08787686 A EP08787686 A EP 08787686A EP 08787686 A EP08787686 A EP 08787686A EP 2198110 A1 EP2198110 A1 EP 2198110A1
Authority
EP
European Patent Office
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.)
Granted
Application number
EP08787686A
Other languages
German (de)
English (en)
Other versions
EP2198110B1 (fr
EP2198110A4 (fr
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
Publication of EP2198110A1 publication Critical patent/EP2198110A1/fr
Publication of EP2198110A4 publication Critical patent/EP2198110A4/fr
Application granted granted Critical
Publication of EP2198110B1 publication Critical patent/EP2198110B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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 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.

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.
EP08787686.8A 2007-07-10 2008-07-10 Ensemble foret Not-in-force EP2198110B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20070540A FI20070540A0 (fi) 2007-07-10 2007-07-10 Teräsovitelma
PCT/FI2008/000087 WO2009007494A1 (fr) 2007-07-10 2008-07-10 Ensemble foret

Publications (3)

Publication Number Publication Date
EP2198110A1 true EP2198110A1 (fr) 2010-06-23
EP2198110A4 EP2198110A4 (fr) 2015-12-23
EP2198110B1 EP2198110B1 (fr) 2017-02-15

Family

ID=38331557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08787686.8A Not-in-force EP2198110B1 (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)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI125204B (fi) * 2010-10-15 2015-06-30 Robit Rocktools Ltd Porasovitelma
EP3011127B1 (fr) * 2013-07-26 2022-01-19 TerraRoc Finland Oy Procédé permettant de préparer un appareil de forage de fond de trou, et appareil de forage de fond de trou
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
FI20165116A7 (fi) * 2016-02-17 2017-08-18 Geonex Oy Poralaitteisto
US11499376B2 (en) * 2017-07-24 2022-11-15 Luc Charland Drilling system and method of using same

Family Cites Families (13)

* 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
FI980426L (fi) * 1994-12-13 1998-02-25 Valto Ilomaeki Teräasetelma
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
FI98649C (fi) * 1995-11-06 1997-07-25 Valto Ilomaeki Menetelmä reiän poraamiseksi ja sovitelma menetelmän toteuttamiseksi
SE512383C3 (sv) * 1997-08-08 2000-04-03 Sandvik Ab Borrverktyg foer att borra ett haal framfoer ett foderroer rymmarorgan och baselement foer anvaendning i borrverktyget
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
JP3750516B2 (ja) * 2000-04-25 2006-03-01 三菱マテリアル株式会社 掘削工具
JP3755124B2 (ja) * 2000-10-30 2006-03-15 株式会社間組 削孔ビット
SE522135C2 (sv) * 2001-07-02 2004-01-13 Uno Loef Borrverktyg för sänkborrning
FI115661B (fi) * 2002-12-23 2005-06-15 Robit Rocktools Ltd Teräsovitelma
JP4001346B2 (ja) * 2004-10-05 2007-10-31 鹿島建設株式会社 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 references of WO2009007494A1 *

Also Published As

Publication number Publication date
EP2198110B1 (fr) 2017-02-15
EP2198110A4 (fr) 2015-12-23
JP5443349B2 (ja) 2014-03-19
JP2010533250A (ja) 2010-10-21
WO2009007494A1 (fr) 2009-01-15
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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