EP2265792A1 - Dispositif d'articulation pour l'accouplement d'un sabot de forage - Google Patents

Dispositif d'articulation pour l'accouplement d'un sabot de forage

Info

Publication number
EP2265792A1
EP2265792A1 EP09722344A EP09722344A EP2265792A1 EP 2265792 A1 EP2265792 A1 EP 2265792A1 EP 09722344 A EP09722344 A EP 09722344A EP 09722344 A EP09722344 A EP 09722344A EP 2265792 A1 EP2265792 A1 EP 2265792A1
Authority
EP
European Patent Office
Prior art keywords
drilling
joint arrangement
drill shoe
hole
casing part
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.)
Withdrawn
Application number
EP09722344A
Other languages
German (de)
English (en)
Inventor
Jukka Ahonen
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.)
Tercope Finland Oy
Original Assignee
Atlas Copco Rotex Oy AB
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 Atlas Copco Rotex Oy AB filed Critical Atlas Copco Rotex Oy AB
Publication of EP2265792A1 publication Critical patent/EP2265792A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit
    • 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
    • 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

Definitions

  • the invention relates to a joint arrangement for coupling of a drill shoe, the drill shoe being meant to be used when drilling a hole into the ground with a protective tube by means of a drilling device that has a casing part acting as the protective tube and a drilling unit, in a drilling head of which there are at least first drilling means, such as a pilot, for drilling a center hole and second drilling means, such as a reamer, for forming of an actual drilling hole for the casing part by reaming the center hole, and whereby the casing part is arranged to be pulled into the hole to be drilled by means of a joint arrangement, comprising a drill shoe to be attached to the casing part advantageously by welding and being coupled with the drilling unit by coupling means that enable rotative motion of the drilling unit with respect to the drill shoe and that transmit power in a longitudinal direction.
  • first drilling means such as a pilot
  • second drilling means such as a reamer
  • a drill shoe of the type described above which is to be pulled into the hole by the reamer and to be coupled externally with the reamer, is rather oblong, whereby, when increasing the dimensions of the reamer with respect to the diameter of the center hole, an even sturdier wall thickness of the drill shoe is required, which makes putting together thereof even more difficult at the operating site.
  • the joint arrangement according to the present invention is mainly characterized by that the joint arrangement comprises a drill shoe that is to be coupled with respect to the second drilling means essentially internally therewith and that the drill shoe pulls the casing part into the hole by a power influence transmitted to the drill shoe from the second drilling means .
  • the drill shoe can first of all be put together from two or more parts, which parts are slipped one at a time in place in a fixed fastening groove, existing at a rear part of the reamer, whereafter the protective tube will be installed inside the assembled drill shoe and welded together therewith by an ordinary transverse joint weld.
  • the joint arrangement according to the invention when exploiting a uniform drill shoe, it is possible to weld the drill shoe together with the protective tube in a usual manner at an operating site and after that to couple the protective tube, being equipped with the drill shoe, furthermore together with the reamer by means of a separate fastening flange that is to be coupled therewith by a transverse joint weld.
  • the invention enables thus a remarkable cost saving when keeping in mind both manufacturing of the drilling unit at a machine workshop and introduction of the drill shoe at an operating site.
  • figure 1 an exemplary longitudinal cross section of a drilling shoe according to the prior art that pulls the protective tube into the ground by power influence transmitted from the reamer,
  • figure 2 is shown as a longitudinal cross section an advantageous implementation of the joint arrangement according to the invention
  • the invention relates to a joint arrangement for coupling of a drill shoe, the drill shoe being meant to be used when drilling a hole into the ground with a protective tube by means of a drilling device 1 that has a casing part 2 acting as the protective tube and a drilling unit 3, in a drilling head of which there are at least first drilling means 4, such as a pilot, for drilling a center hole and second drilling means 5, such as a reamer, for forming of an actual drilling hole for the casing part 2 by reaming the center hole, and whereby the casing part 2 is arranged to be pulled into the hole to be drilled by means of a joint arrangement L, comprising a drill shoe X to be attached to the casing part 2 advantageously by welding hi, and being coupled with the drilling unit 3 by coupling means that enable rotative motion of the drilling unit 3 with respect to the drill shoe and that transmit power in a longitudinal direction s.
  • first drilling means 4 such as a pilot
  • second drilling means 5 such as a reamer
  • the joint arrangement comprises a drill shoe X; Xi, Xii that is to be coupled with respect to the second drilling means 5 essentially internally therewith. Furthermore the drill shoe pulls the casing part 2 into the hole by a power influence F transmitted to the drill shoe from the second drilling means 5.
  • a joint arrangement according to the invention is advantageously utilized in connection with a drilling device 1, the drilling head of the drilling unit 3 thereof being formed from a first and a second frame part 4a, 5a that are to be coupled with each other and drilling surfaces of which are provided with drilling organs 10a, 10b of the first and second drilling means 4, 5, such as a uniform cutting part, separate drill bits or parts or like; wherein the first frame part 4a thereof is arranged separable from the second frame part 5a in order to enable its removal from a drilled hole; wherein a radial outer surface of the first frame part 4a is provided with an essentially longitudinal s groove assembly particularly for leading of drilling waste or flushing medium internally within the protective tube 2 and/or in order to enable a mutual longitudinal motion of the first and second frame parts 4a, 5a; wherein during a drilling situation a rotative motion w4 of the first drilling means 4 around a longitudinal axis and, when needed, a hammering motion t4 in the longitudinal direction is transmitted to the second drilling means 5, being
  • the joint arrangement according to the invention comprises a drill shoe X; Xi, Xii that is to be coupled with the casing part 2 in one or several parts as an advantageous embodiment by welding hi and/or coupling means L; Li that are to be coupled with the second drilling means 5, such as the second frame part 5a preferably by welding h2.
  • the drill shoe X consists of two or more parts Xii, which are provided with a male surface Li; Liu of the joint arrangement's coupling organs, such as an external end flange or like.
  • a female surface of the joint arrangement's coupling organs such as an internal counterpart groove Li ; Liv and an internal counterpart flange Li; Lin or like, are arranged as an advantageous embodiment in a built-in manner in connection with the second drilling means 5, such as at a rear edge of the second frame part 5a.
  • the parts Xii of the drill shoe are arranged furthermore to be welded together to each other and/or to the casing part 2 by an essentially longitudinal s weld h3 , which for its part strengthens significantly the drill shoe.
  • the drill shoe X of the implementation shown in figure 4 comprises for its part a uniform ring structure Xi, which has a male surface Li; Liu of the joint arrangement's coupling organs, such as an external end flange or like.
  • the female surface of the joint arrangement's coupling organs such as an internal counterpart groove Li ; Liv and/or an internal counterpart flange Li; Lin or like, are arranged to be coupled preferably by welding h2 in connection with the second drilling means 5, such as on a back surface of the second frame part 5a. This enables connecting of the protective tube equipped with the drill shoe to the drilling unit at the operating site by customary joint welds hi, h2 and h3.
  • joint surfaces of the drill shoe parts Xii particularly in the embodiment shown in figure 2 and/or between the female surfaces of the coupling means and the second drilling means 5, such as the second frame part 5a, in the embodiment according to figure 4, are provided with guides in order to make easier mutual placement thereof for the welding.
  • the invention is not limited to the embodiments shown or described above, but instead it can be modified considerably within the basic idea of the invention. It is thus possible to couple e.g. a uniform drill shoe with the casing part or a separate counterpart flange with the reamer instead of a weld joint or in addition thereto e.g. with a thread joint (in which case the welding may comprise merely spot- like locking welds) . Furthermore e.g. with reference to figure 1, it is possible to carry out the coupling means of the joint arrangement with two or more power transmission surface assemblies placed on after the other in the longitudinal direction. Furthermore e.g.
  • first frame part and the second frame part may be connected to each other by e.g. a thread joint, wherein the locking between the same is achieved by mechanical, pressurized fluid and/or electrical assemblies.
  • the parts may be connected to each other only by a thread joint, which solution, however, may cause problems in separating the parts from each other, because the parts will probably jam against each other too tightly during drilling.
  • the frame parts may be connected on a quick- release principle, for example by a bayonet coupling or like or for example in a way that there are teeth in both parts which fit to each other in the longitudinal direction.
  • the second drilling means may be connected only to the first drilling means, in which case there is a risk that the second drilling means turns into an unsuitable position at the bottom of the hole, when the first drilling means is removed from the hole, and thus possibly even prevent exploitation of the hole being drilled.
  • parts made of customary materials may be used that are produced applying most differing manufacturing methods.
  • an oscillating movement may be applied as the drilling movement of the drilling apparatus.

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)

Abstract

L'invention porte sur un dispositif d'articulation pour l'accouplement d'un sabot de forage, le sabot de forage étant destiné à être utilisé lors du forage d'un trou dans le sol avec un tube protecteur au moyen d'un dispositif de forage (1) qui a une partie tubage (2) servant de tube protecteur et une unité de forage (3), dans une tête de forage dans laquelle se trouve au moins des premiers moyens de forage (4), tels qu'un pilote, pour forer un trou central et des seconds moyens de forage (5), tels qu'un aléseur, pour former un trou de forage réel pour la partie tubage (2) par alésage du trou central, la partie tubage (2) étant ainsi agencée pour être tirée à l'intérieur du trou devant être foré au moyen d'un dispositif d'articulation (L). Ce dispositif d'articulation comprend un sabot de forage (X) devant être attaché à la partie tubage (2), de préférence par soudure (h1), et est couplé à l'unité de forage (3) par des moyens d'accouplement qui permettent un mouvement de rotation de l'unité de forage (3) par rapport au sabot de forage et qui transmettent une puissance dans une ou des directions longitudinales. Le dispositif d'articulation comprend un sabot de forage (X; Xii) qui doit être couplé par rapport aux seconds moyens de forage (5) de façon essentiellement interne. De plus, le sabot de forage tire la partie tubage (2) à l'intérieur du trou par une influence de puissance (F) transmise au sabot de forage à partir des seconds moyens de forage (5).
EP09722344A 2008-03-19 2009-02-16 Dispositif d'articulation pour l'accouplement d'un sabot de forage Withdrawn EP2265792A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20085237A FI20085237A7 (fi) 2008-03-19 2008-03-19 Liitosjärjestely maakengän kytkemiseksi
PCT/FI2009/050123 WO2009115638A1 (fr) 2008-03-19 2009-02-16 Dispositif d'articulation pour l'accouplement d'un sabot de forage

Publications (1)

Publication Number Publication Date
EP2265792A1 true EP2265792A1 (fr) 2010-12-29

Family

ID=39269532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09722344A Withdrawn EP2265792A1 (fr) 2008-03-19 2009-02-16 Dispositif d'articulation pour l'accouplement d'un sabot de forage

Country Status (3)

Country Link
EP (1) EP2265792A1 (fr)
FI (1) FI20085237A7 (fr)
WO (1) WO2009115638A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI20236069A1 (fi) * 2023-09-27 2025-03-28 Vaehaekangas Mikko Järjestely putkien maahan poraamista varten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI109143B (fi) * 2001-04-04 2002-05-31 Oy Atlas Copco Rotex Ab Menetelmä poraukseen ja porauslaitteisto
SE519312C2 (sv) * 2001-06-26 2003-02-11 Sandvik Ab Bergborrverktyg för slående borrning samt ringborrkrona och borradapter avsedda att ingå i borrverktyget
CN100354498C (zh) * 2005-11-02 2007-12-12 中国水电顾问集团成都勘测设计研究院 空气潜孔锤取心跟管钻具
FI121635B (fi) * 2006-04-27 2011-02-15 Pirkan Laatupalvelu Oy Porauspään huuhtelujärjestely

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009115638A1 *

Also Published As

Publication number Publication date
WO2009115638A1 (fr) 2009-09-24
FI20085237L (fi) 2009-09-20
FI20085237A7 (fi) 2009-09-20
FI20085237A0 (fi) 2008-03-19

Similar Documents

Publication Publication Date Title
EP1373675B1 (fr) Procede de forage et appareil de forage
US20010017222A1 (en) Directional drilling components and adaptors
US20110198129A1 (en) Method and drilling apparatus for down-the-hole drilling
EP1077305A1 (fr) Adaptateur de tiges
WO2009115638A1 (fr) Dispositif d'articulation pour l'accouplement d'un sabot de forage
JP7814403B2 (ja) フラッシング要素、削岩機、および方法
CN114364860B (zh) 肩部受保护的钻凿组件
KR20210138008A (ko) 드릴 스트링 로드
US9970238B2 (en) Method in putting together of a down-the-hole drilling apparatus and a down-the-hole drilling apparatus
EP3175077B1 (fr) Procédé pour assembler un appareil de forage de fond-de-trou pour un forage par tuyau en matière plastique et appareil de forage de fond-de-trou
JP2021025389A (ja) 高強度薄肉鋼管を使用した地中削孔管
US12371952B2 (en) Shank adapter, rock drilling machine and method
US20260063006A1 (en) End piece of drill pipe, drill pipe assembly and method
WO2014001601A1 (fr) Procédé et appareil d'utilisation d'un dispositif de forage destiné au forage de fond de trou
AU2010200838B2 (en) Down-hole Hammer Drill
WO2010095998A1 (fr) Ensemble démarreur, tubage et arbre de démarreur pour équipements de forage pour forage de roche à percussion
WO2012038583A1 (fr) Procédé et appareil pour forage de fond de trou

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101001

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140902