EP1088151B1 - Dispositif de fraisage en fond de trou - Google Patents

Dispositif de fraisage en fond de trou Download PDF

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Publication number
EP1088151B1
EP1088151B1 EP99936456A EP99936456A EP1088151B1 EP 1088151 B1 EP1088151 B1 EP 1088151B1 EP 99936456 A EP99936456 A EP 99936456A EP 99936456 A EP99936456 A EP 99936456A EP 1088151 B1 EP1088151 B1 EP 1088151B1
Authority
EP
European Patent Office
Prior art keywords
mills
toppling head
stator housing
toppling
rotatable
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
EP99936456A
Other languages
German (de)
English (en)
Other versions
EP1088151A1 (fr
Inventor
Marc Emmanuel Amory
Simon Lawrence Fisher
Michael Edward Pointing
Onno Willemse
Mark Wilson Anderson
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP99936456A priority Critical patent/EP1088151B1/fr
Publication of EP1088151A1 publication Critical patent/EP1088151A1/fr
Application granted granted Critical
Publication of EP1088151B1 publication Critical patent/EP1088151B1/fr
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
    • E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
    • E21B27/02—Dump bailers, i.e. containers for depositing substances, e.g. cement or acids
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations

Definitions

  • the invention relates to a device for performing milling operations in an underground borehole.
  • Such milling operations may include the underreaming of the borehole or the cutting of a window in a well tubular.
  • a further disadvantage of the known milling devices is that the rotating mill exerts a high and variable tangential torque to the device which induces the device to run away in tangential direction.
  • the known devices therefore need to be guided by guide means, such as a whipstock, which is fixed firmly inside the casing to avoid the device to run away during the milling operations.
  • the milling device according to the preamble of claim 1 is known from US-A- 1,731,553.
  • a mill is driven by a shaft and complex mitre gear wheel mechanism which is bulky and fragile and therefore not practical for downhole use.
  • the device according to the present invention thereto comprises a flexible drive shaft as described in the characterizing portion of claim 1.
  • the device is equipped with a pair of contra-rotatable mills that exert opposite tangential torques to the device which neutralise each other.
  • Such contra-rotating mills are able to cut in the casing or other well tubular a well-defined window having well-polished rims which can be sealed off easily.
  • the drive mechanism comprises a hydraulic Moineau-type motor having a rotor which is rotatably mounted at the upper end of the stator housing and which is secured to the upper end of the flexible drive shaft and the pivot mechanism comprises a hydraulic piston which is slidably arranged within the stator housing between the outlet of the Moineau-motor and a slant upper surface of the toppling head such that in use the elevated pressure of the driving fluid discharged by the motor presses the piston against said slant upper surface of the toppling head thereby inducing the toppling head to pivot towards the extended position thereof.
  • the hydraulic piston is slidably arranged around the flexible shaft and the flexible shaft is made of a resilient material and exerts a residual torque to the toppling head which torque induces the toppling head to pivot towards its contracted position in the absence of hydraulic pressure exerted to the piston.
  • the device is used as a casing window milling device a cuttings collecting box is secured to the housing beneath the mills and in use the hydraulic driving fluid emerging from the motor flushes cuttings from the mills into the cuttings collecting box.
  • EP-A- 0798443 describes a directional drilling assembly in which a drill bit is driven by a shaft comprising a cardanic coupling and that UK patent application GB 2 311 547 discloses a downhole jetting device which comprises a jet that is connected to a flexible hose to allow the jet to drill a downhole sidetrack.
  • a milling device having a stator housing 1, a toppling head 2 and a pair of contra-rotating twin mills 3 and 4.
  • the twin mills 3 and 4 face each other at a central plane of symmetry of the device which is orthogonal to the plane of drawing of Fig. 1 and which intersects the plane of the drawing at central axis 5.
  • the toppling head 2 is pivotably suspended within the stator housing 1 by a pair of hinge pins 6 which permit the toppling head 2 to rotate about an axis of rotation 7 which is substantially orthogonal to the central axis 5 and the central plane of symmetry of the device.
  • the toppling head 2 comprises a gear box (not shown) having a flexible input shaft 9 and a pair of parallel output shafts 8 which carry the mills 3 and 4 and which are rotated relative to the toppling head 2 at equal rotational speeds but in opposite directions, which are illustrated by arrows 10, in response to rotation illustrated by arrow 12 of the flexible input shaft 7 relative to the stator housing 1 by means of a Moineau-type or other hydraulic or electric motor (not shown).
  • the mills 3 and 4 comprise substantially cylindrical bodies on which helical cutting teeth 11 are mounted at similar but opposite pitch angles which teeth intermesh at the central plane of symmetry of the device.
  • Fig. 2 shows that in the transportation mode the flexible shaft 9 obtains a curved shape and that the toppling head 2 has a slant upper surface 13 which has a top 14 that engages the lower end of a piston 15 which is slidably arranged inside the stator housing 1.
  • the piston 14 and slant upper surface 13 of the toppling head together form a pivoting mechanism which causes the toppling head 2 to rotate towards its extended position which is shown in Fig. 3.
  • Fig. 3 shows that liquid discharged by the hydraulic motor flows through an annular opening 16 between the upper end 17 of the piston 15 and the flexible shaft 9 into the interior 18 of the piston 15, as illustrated by arrows 19.
  • the mills 3 and 4 pivot together with the toppling head 2 about the pivot axis 7 towards their extended position and are simultaneously rotated by the shafts 8 and thereby mill a window 22 in a casing 23 surrounding the device.
  • a guide plate 28 in the collecting box 26 serves to reduce the speed of the liquid so that the cuttings are allowed to be separated by gravity and/or magnetic forces from the liquid and are deposited at the bottom of the box, whereas the liquid is discharged via an opening 29 at the top of the box 26 into the annulus surrounding the device.
  • the device While the mills 3 and 4 are cutting the window 22 in the well casing 23 the device is pulled upwards through the casing as illustrated by arrows 30 by means of a piston (not shown) above the device until the window 22 has the desired length. It is preferred that the device is suspended within the casing 23 from a coiled tubing or drill string (not shown) and that the coiled tubing or drill string is gradually pulled up during the milling operations whilst the piston above the device ensures that the device is moved up through the casing 23 at an accurately defined speed and over an accurately defined distance.
  • the balanced forces exerted by the mills 3 and 4 to the stator housing allow the device to mill a straight and well defined window in the well casing 23 in a quick and accurate manner and without leaving cuttings in the casing interior.
  • the mills may have a non-cylindrical shape, such as a frusto-conical shape. In such case it is preferred that the axes of rotation of the mills intersect each other at the central plane of the device.
  • Fig. 4 shows an embodiment of the device according to the invention where the device is used for underreaming of an uncased underground borehole.
  • the upper part of the device shown in Fig. 4 is similar to the upper part of the device shown in Figs. 1-3 and similar reference numerals denote similar components.
  • the device shown in Fig. 4 however contains no cuttings collection box and has a stator housing 1 which is rotated about the central axis 5 as is illustrated by arrow 40.
  • the device of Fig. 4 is equipped with a single mill 4 which underreams the wellbore 41 as a result of the simultaneous rotation of the stator housing and of the mill 4 relative to the toppling head 2.
  • the toppling head 2 is extended and retracted in the same way as described with reference to Figs. 1-3.
  • the flexible shaft 9 is connected to the output shaft 8 via a gearbox in the toppling head 2, or may alternatively be integrated with the output shaft 8. If desired the underreamer device shown in Fig. 4 may be equipped with a pair of contra-rotatable twin mills 4 similar to those shown in Figs. 1-3.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)
  • Milling Processes (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

Dispositif servant à exécuter des opérations de fraisage dans un trou de sondage souterrain et comprenant une tête de fraisage (2) fixée rotative au boîtier (1) d'un stator et comportant une ou plusieurs fraises rotatives (3, 4) qui, en fonctionnement, tournent simultanément, la tête de fraisage (2) se trouvant alors en position d'extension depuis le boîtier (1) du stator afin de fraiser une fenêtre dans un tubage (23) environnant ou d'élargir le trou de sondage, tandis que le boîtier du stator tourne dans ce trou de sondage.

Claims (7)

  1. Dispositif pour réaliser des opérations de fraisage dans un trou foré dans le sol, le dispositif comprenant un logement de stator (1), une tête basculante (2) qui est fixée à pivotement au logement (1) et qui est équipée d'une ou de plusieurs fraises rotatives (3, 4), un mécanisme d'entraínement pour faire tourner chaque fraise (3, 4) par rapport à la tête basculante (2) et un mécanisme de pivotement (6) pour faire pivoter la tête basculante par rapport au logement, autour d'un axe de pivotement (5), entre une position rétractée dans laquelle chaque fraise (3, 4) est essentiellement alignée sur le logement de stator (1) et une position déployée dans laquelle chaque fraise (3, 4) déborde obliquement du logement (1) dans une direction latérale, le logement de stator définissant un plan central longitudinal du dispositif essentiellement perpendiculaire audit axe de pivotement (5), caractérisé en ce que le mécanisme d'entraínement comprend un arbre d'entraínement flexible (9) qui peut tourner autour d'un axe de rotation situé dans ledit plan central, qui forme un arbre d'entrée qui est relié directement ou indirectement à chaque arbre de sortie (8) sur lequel une fraise (3, 4) est montée.
  2. Dispositif selon la revendication 1, dans lequel la tête basculante (2) est équipée de deux fraises (3, 4) tournant en sens inverse qui sont montées sur des arbres de sortie (8) qui peuvent tourner autour d'axes de rotation parallèles l'un à l'autre et situés à des distances essentiellement égales du plan central du dispositif, lesquelles fraises (3, 4) comprennent des corps essentiellement cylindriques sur lesquels des dents de coupe (11) en hélice sont montées de telle sorte que les angles d'hélice des dents de coupe (11) soient identiques mais opposés l'un à l'autre, les dents de coupe (11) de fraises adjacentes étant mutuellement opposées sur le plan central du dispositif ou à proximité de ce dernier.
  3. Dispositif selon la revendication 1, dans lequel la tête basculante (2) est équipée de deux fraises tournant en sens inverse qui sont montées sur des arbres de sortie (8) qui peuvent tourner autour d'axes de rotation qui se coupent mutuellement en un point d'intersection situé dans ledit plan central, les fraises présentant des corps tronconiques sur lesquels sont montées des dents de coupe engrenées.
  4. Dispositif selon la revendication 1, dans lequel le mécanisme d'entraínement comprend un moteur hydraulique présentant un rotor qui est monté à rotation à l'intérieur du logement de stator (1) et qui est fixé à l'arbre d'entraínement flexible (9).
  5. Dispositif selon la revendication 4, dans lequel le moteur hydraulique est un moteur de type Moineau qui est situé à une extrémité supérieure du logement de stator (1), et dans lequel le mécanisme de pivotement comprend un piston hydraulique (15) qui est agencé à coulissement à l'intérieur du logement de stator entre la sortie du moteur Moineau et une surface supérieure oblique (13) de la tête basculante (2) de telle sorte qu'en utilisation, la haute pression du fluide d'entraínement déchargé par le moteur repousse le piston contre ladite surface supérieure oblique de la tête basculante pour ainsi amener la tête basculante à pivoter en direction de sa position déployée.
  6. Dispositif selon la revendication 4, dans lequel le piston hydraulique (15) est agencé à coulissement autour de l'arbre flexible (9), l'arbre flexible (9) étant réalisé en un matériau élastique et exerçant un couple résiduel sur la tête basculante (2), lequel couple amène la tête basculante à pivoter en direction de sa position rétractée lorsque aucune pression hydraulique n'est exercée sur le piston (15).
  7. Dispositif selon les revendications 2 et 5, dans lequel le dispositif convient pour fraiser une fenêtre dans une tubulure de puits, une boíte (26) de collecte de découpes étant fixée au logement en dessous des fraises (3, 4), et en utilisation, le fluide hydraulique d'entraínement provenant du moteur entraíne les découpes (25) depuis les fraises (3, 4) jusque dans la boíte (26) de collecte de découpes.
EP99936456A 1998-06-10 1999-06-09 Dispositif de fraisage en fond de trou Expired - Lifetime EP1088151B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99936456A EP1088151B1 (fr) 1998-06-10 1999-06-09 Dispositif de fraisage en fond de trou

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP98304595 1998-06-10
EP98304595 1998-06-10
PCT/EP1999/004039 WO1999064715A1 (fr) 1998-06-10 1999-06-09 Dispositif de fraisage en fond de trou
EP99936456A EP1088151B1 (fr) 1998-06-10 1999-06-09 Dispositif de fraisage en fond de trou

Publications (2)

Publication Number Publication Date
EP1088151A1 EP1088151A1 (fr) 2001-04-04
EP1088151B1 true EP1088151B1 (fr) 2003-02-12

Family

ID=8234868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99936456A Expired - Lifetime EP1088151B1 (fr) 1998-06-10 1999-06-09 Dispositif de fraisage en fond de trou

Country Status (12)

Country Link
EP (1) EP1088151B1 (fr)
CN (1) CN1119499C (fr)
AU (1) AU741468B2 (fr)
BR (1) BR9911083A (fr)
CA (1) CA2334150A1 (fr)
DE (1) DE69905364D1 (fr)
EA (1) EA002048B1 (fr)
ID (1) ID27015A (fr)
NO (1) NO314855B1 (fr)
NZ (1) NZ508288A (fr)
OA (1) OA11626A (fr)
WO (1) WO1999064715A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2296122C (fr) 1999-01-15 2008-07-29 Baker Hughes Incorporated Fenetrage par decoupage au chalumeau
US6971449B1 (en) 1999-05-04 2005-12-06 Weatherford/Lamb, Inc. Borehole conduit cutting apparatus and process
US6364037B1 (en) 2000-04-11 2002-04-02 Weatherford/Lamb, Inc. Apparatus to actuate a downhole tool
US6536525B1 (en) 2000-09-11 2003-03-25 Weatherford/Lamb, Inc. Methods and apparatus for forming a lateral wellbore
US6474415B1 (en) * 2000-11-15 2002-11-05 Schlumberger Technology Corporation Method and apparatus for milling openings in downhole structures
GB2389129B8 (en) * 2002-05-29 2008-01-29 Lattice Intellectual Property Method and dual reamer apparatus for forming boredhole
US7077212B2 (en) 2002-09-20 2006-07-18 Weatherford/Lamb, Inc. Method of hydraulically actuating and mechanically activating a downhole mechanical apparatus
GB0226725D0 (en) * 2002-11-15 2002-12-24 Bp Exploration Operating method
US20090308605A1 (en) 2008-06-14 2009-12-17 Mcafee Wesley Mark Methodolgy and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
GB2462306B (en) * 2008-08-01 2012-12-26 Deep Casing Tools Ltd Reaming tool
WO2010027274A1 (fr) * 2008-09-08 2010-03-11 Sinvent As Dispositif et procédé pour modifier les parois latérales d'un trou de forage
US8146679B2 (en) 2008-11-26 2012-04-03 Schlumberger Technology Corporation Valve-controlled downhole motor
NO329613B1 (no) * 2009-04-14 2010-11-22 West Production Tech As Anordning ved nedihullsapparat for maskinering av fôringsrør samt framgangsmåte for deponering av maskineringsspon
US8215400B2 (en) * 2010-10-29 2012-07-10 Halliburton Energy Services, Inc. System and method for opening a window in a casing string for multilateral wellbore construction
AU2015289775B2 (en) 2014-07-14 2018-08-09 Aarbakke Innovation A.S. Wellbore intervention tool for penetrating obstructions in a wellbore
CN107387011A (zh) * 2017-08-02 2017-11-24 西南石油大学 水力推进实现连续切割不同直径套管的井下工具
US10711551B2 (en) * 2018-07-25 2020-07-14 Saudi Arabian Oil Company Milling downhole tubulars
CN111980614B (zh) * 2020-08-28 2022-11-15 中国石油天然气股份有限公司 液力大角度可弯磨铣工具
CA3203455A1 (fr) * 2020-12-02 2022-06-09 Conocophillips Company Procede et appareil de fraisage de fenetre dans un tubage
CN114922581B (zh) * 2022-05-27 2023-08-18 重庆科技学院 一种井下套管连续开孔装置及其工作方法
CN116255100B (zh) * 2023-04-27 2023-09-12 山东爱特机电技术有限责任公司 一种超级电容储能的电动修井机
CN117145379B (zh) * 2023-10-31 2024-01-30 长沙黑金刚实业有限公司 一种反循环冲击器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US527123A (en) * 1894-10-09 Means for transporting beer
NL23055C (fr) * 1928-12-28 1930-05-15
US4003602A (en) * 1976-01-16 1977-01-18 Coaltex, Incorporated Method and apparatus for in-cutting and out-cutting during coal mining
DE3107973C2 (de) * 1980-07-12 1982-12-02 Preussag Ag, 3000 Hannover Und 1000 Berlin Bohrwerkzeug zur Herstellung gekrümmt verlaufender Abschnitte von Tiefbohrungen
GB2129350A (en) * 1982-10-14 1984-05-16 Colebrand Ltd Remotely controllable cutting apparatus
FR2597543B1 (fr) * 1986-04-17 1988-06-24 Soletanche Dispositif pour le forage immerge de fondations
FR2641316B1 (fr) * 1988-12-30 1995-09-08 Inst Francais Du Petrole Garniture pour forage a trajectoire controlee comportant un element coude a angle variable et utilisation de cette garniture
US5056242A (en) * 1989-05-12 1991-10-15 Finic, B.V. Underground wall construction method and apparatus
US5135059A (en) * 1990-11-19 1992-08-04 Teleco Oilfield Services, Inc. Borehole drilling motor with flexible shaft coupling
GB2311547B (en) * 1993-03-08 1997-11-19 Tiw Corp Orientable guide assembly and method of use
US5484029A (en) * 1994-08-05 1996-01-16 Schlumberger Technology Corporation Steerable drilling tool and system
GB9422837D0 (en) * 1994-09-23 1995-01-04 Red Baron Oil Tools Rental Apparatus for milling a well casing
US5503235A (en) * 1994-11-28 1996-04-02 Falgout, Sr.; Thomas E. Directional drilling control method
US5551509A (en) * 1995-03-24 1996-09-03 Tiw Corporation Whipstock and starter mill
GB2306985B (en) * 1995-11-07 1999-06-02 Hector Filippus Alexand Susman Improvements in milling
DE19612902C2 (de) * 1996-03-30 2000-05-11 Tracto Technik Verfahren zum Richtungsbohren und eine Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
CN1119499C (zh) 2003-08-27
NO20006247D0 (no) 2000-12-08
CN1305562A (zh) 2001-07-25
EA002048B1 (ru) 2001-12-24
WO1999064715A1 (fr) 1999-12-16
NO20006247L (no) 2000-12-08
AU741468B2 (en) 2001-11-29
OA11626A (en) 2004-09-09
NZ508288A (en) 2003-03-28
NO314855B1 (no) 2003-06-02
BR9911083A (pt) 2001-02-20
EP1088151A1 (fr) 2001-04-04
EA200100019A1 (ru) 2001-06-25
DE69905364D1 (de) 2003-03-20
ID27015A (id) 2001-02-22
CA2334150A1 (fr) 1999-12-16
AU5155099A (en) 1999-12-30

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