EP0578690B1 - Vorrichtung für erdöl-, erdgas- oder geothermische bohrungen - Google Patents

Vorrichtung für erdöl-, erdgas- oder geothermische bohrungen Download PDF

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Publication number
EP0578690B1
EP0578690B1 EP92907586A EP92907586A EP0578690B1 EP 0578690 B1 EP0578690 B1 EP 0578690B1 EP 92907586 A EP92907586 A EP 92907586A EP 92907586 A EP92907586 A EP 92907586A EP 0578690 B1 EP0578690 B1 EP 0578690B1
Authority
EP
European Patent Office
Prior art keywords
stator
bit
central tool
drill bit
seating
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
EP92907586A
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English (en)
French (fr)
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EP0578690A1 (de
Inventor
André Leroy
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0578690A1 publication Critical patent/EP0578690A1/de
Application granted granted Critical
Publication of EP0578690B1 publication Critical patent/EP0578690B1/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
    • E21B4/00—Drives for drilling, used in the borehole
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/20—Drives for drilling, used in the borehole combined with surface drive
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005—Below-ground automatic control systems
    • 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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Definitions

  • the object of the invention is an oil, gas or geothermal drilling rig, comprising a central tool and a coaxial drill bit, in which the central tool is driven by the rotor of a downhole motor powered by drilling mud. and in which the drill bit is driven from the surface by the rods of a drilling train belonging to a rotary system, these same rods subjecting the apparatus to an axial force.
  • Another possible advantage of this organization is to allow the central tool to rotate at a higher angular speed than the drill bit, and thus to achieve more uniform linear cutting speeds over the major part of the diameter of the well drilled.
  • the drilling rig completely secures the base of the drill bit and the stator of the downhole motor.
  • the power distribution is optimal in the only case where the drilled ground and the cutting conditions imposed on the two tools are such that the feed speeds which would be taken by each of them would be identical if they acted separately .
  • the drilling device which is the subject of the invention comprises a prismatic connection so as to allow the relative translation of the two tools along their common axis.
  • any means comprising an elasticity, which we will call spring, is interposed between the stator of the downhole motor and the base of the drill bit so that the stator forces this spring when the central tool tends to fall behind the drill bit in their respective advance movements.
  • stator of the downhole motor and the base of the drill bit have shapes delimiting between them an orifice whose cross section is a function of their relative positions, allowing the deviation of a variable part of the flow of mud, which thus avoids the intake port of the bottom engine.
  • the drilling rig modifies the deflection orifice so as to increase the flow admitted into the motor when the relative axial displacement of the stator is in the direction where it tends to constrain the spring and vice versa.
  • a freewheel can be interposed between the base of the central tool and the drill bit.
  • This freewheel is obviously of a type which makes it powerless to oppose the relative axial movement of their tools and it is mounted so as to lock when the absolute rotation speed of the central tool tends to become lower than that of the drill bit.
  • FIG. 1 to 3 of the accompanying drawing describe by way of example an embodiment of the drilling rig, object of the invention, in which are present all the provisions listed above.
  • Figure 1 shows an axial section of the drilling rig.
  • Figure 2 shows, on an enlarged scale, a partial section II-II of Figure 1 (the engine being viewed from above without being cut).
  • FIG. 3 is a part, on an enlarged scale, of the axial section presented in FIG. 1.
  • the central tool 1 driven in rotation by a bottom motor identified by its stator 4 as well as the drill bit 2 and its base 5 driven from the surface by rods 3 of a drilling train belonging to a rotary system.
  • the device Between the stator 4 of the downhole motor and the base 5 of the drill bit, the device comprises a prismatic connection 450.
  • the base is here in two parts assembled by the conical thread 51.
  • the prismatic connection 450 is here produced by a groove comprising four teeth 40 on the stator, engaged between teeth 50 belonging to the base 5 of the drill bit.
  • the spring 6 working in compression bears, in 570, on the base of the drill bit and, in 416, on four projections 41 of the stator 4, the head surfaces of these projections forming, in 451, a complementary cylindrical guide of the stator in the base of the drill bit.
  • the projections 41 of the stator 4 have, on the other hand, bearing faces 452 which may constitute, with bearing faces 532 on the projections 53 of the base 5 of the drill bit, a stop enabling the device to be extracted from the well without lose part of it.
  • the flow of mud which has passed through the orifice 7 circulates in the annular space 453 between the base 5 of the drill bit and the stator 4 of the downhole motor, crosses the orifices 52 which constitute restrictors, then crosses the drill bit and reaches the well by holes 20 formed in the body of the drill bit.
  • the drilling rig also comprises a free wheel with rollers (211) interposed between the surface 21 of the bore of the base of the drill bit 2 and a surface of the base 11 of the central tool 1.
  • This freewheel is mounted so that it locks when the absolute rotation speed of the central tool tends to fall below that of the drill bit.

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)

Claims (3)

  1. Vorrichtung für Erdöl-, Erdgas- oder geothermische Bohrungen, welche ein zentrales Werkzeug (1) und koaxial hierzu einen Bohrmeißel (2) aufweist und bei welcher das zentrale Werkzeug (1) durch den Rotor eines Unterflurmotors, dem der Spülschlamm zugeführt wird, angetrieben wird, und bei welcher der Bohrmeißel (2) von der Oberfläche aus über die Stangen (3) einer zu einem Rotarysystem gehörenden Bohrausrüstung angetrieben wird, wobei diese Stangen auf die Vorrichtung eine axiale Kraft ausüben,
       dadurch GEKENNZEICHNET, daß sie zwischen dem Stator (4) des Unterflurmotors und dem Anschluß (5) des Bohrmeißels eine Prismenverbindung (450) aufweist, die eine relative axiale Verschiebung der beiden Werkzeuge gestattet, und daß eine elastische Einrichtung (6) so zwischen den Stator (4) und den Anschluß (5) eingebracht ist, daß sie vom Stator belastet wird, wenn das zentrale Werkzeug gegenüber dem Bohrmeißel bei der jeweiligen Vorschubbewegung der beiden Teile eine Verzögerung anstrebt, um die relative axiale Verschiebung der beiden Werkzeuge zu steuern und in Abhängigkeit von dieser Verschiebung die auf die Vorrichtung einwirkende Kraft in axialer Richtung auf diese aufzuteilen.
  2. Bohrvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Stator (4) des Unterflurmotors und der Anschluß (5) des Bohrmeißels jeweils so geformt sind, daß sie dazwischen eine Öffnung (7) begrenzen, deren Querschnitt von deren relativer Position abhängig ist, wobei durch diese Öffnung (7) der Spülschlamm von der Einlaßöffnung (8) des Motors so abgelenkt wird, daß die in den Motor eingelassene Durchsatzmenge erhöht wird, wenn die relative axiale Verschiebung des Stators in der Richtung erfolgt, in der die Neigung zur Beaufschlagung der Feder (6) besteht, und umgekehrt.
  3. Bohrvorrichtung nach den Ansprüchen 1 bzw. 2, dadurch gekennzeichnet, daß ein Freilauf (211) von der Art, die die relative axiale Verschiebung der beiden Werkzeuge gestattet, zwischen den Anschluß (11) des zentralen Werkzeugs (1) und den Bohrmeißel (2) eingesetzt und so angebracht ist, daß er verriegelt wird, wenn die absolute Drehgeschwindigkeit des zentralen Werkzeugs zum Absinken unter die Drehzahl des Bohrmeißels neigt.
EP92907586A 1991-04-12 1992-04-03 Vorrichtung für erdöl-, erdgas- oder geothermische bohrungen Expired - Lifetime EP0578690B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9104824A FR2675197B1 (fr) 1991-04-12 1991-04-12 Appareil de forage petrolier, gazier ou geothermique.
FR9104824 1991-04-12
PCT/EP1992/000771 WO1992018740A1 (fr) 1991-04-12 1992-04-03 Appareil de forage petrolier, gazier ou geothermique

Publications (2)

Publication Number Publication Date
EP0578690A1 EP0578690A1 (de) 1994-01-19
EP0578690B1 true EP0578690B1 (de) 1995-12-13

Family

ID=9412030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92907586A Expired - Lifetime EP0578690B1 (de) 1991-04-12 1992-04-03 Vorrichtung für erdöl-, erdgas- oder geothermische bohrungen

Country Status (8)

Country Link
US (1) US5343964A (de)
EP (1) EP0578690B1 (de)
CA (1) CA2104010C (de)
DE (1) DE69206792T2 (de)
FR (1) FR2675197B1 (de)
NO (1) NO305406B1 (de)
RU (1) RU2062861C1 (de)
WO (1) WO1992018740A1 (de)

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Publication number Priority date Publication date Assignee Title
GB9521972D0 (en) * 1995-10-26 1996-01-03 Camco Drilling Group Ltd A drilling assembly for drilling holes in subsurface formations
GB9708428D0 (en) * 1997-04-26 1997-06-18 Camco Int Uk Ltd Improvements in or relating to rotary drill bits
US6470974B1 (en) 1999-04-14 2002-10-29 Western Well Tool, Inc. Three-dimensional steering tool for controlled downhole extended-reach directional drilling
US6467557B1 (en) 1998-12-18 2002-10-22 Western Well Tool, Inc. Long reach rotary drilling assembly
CA2327920C (en) 1999-12-10 2005-09-13 Baker Hughes Incorporated Apparatus and method for simultaneous drilling and casing wellbores
US6488103B1 (en) 2001-01-03 2002-12-03 Gas Research Institute Drilling tool and method of using same
US7334649B2 (en) * 2002-12-16 2008-02-26 Halliburton Energy Services, Inc. Drilling with casing
US6877570B2 (en) * 2002-12-16 2005-04-12 Halliburton Energy Services, Inc. Drilling with casing
TWI282940B (en) * 2003-12-02 2007-06-21 Aimgene Technology Co Ltd Memory storage device with a fingerprint sensor and method for protecting the data therein
GB2412388B (en) * 2004-03-27 2006-09-27 Schlumberger Holdings Bottom hole assembly
US7712549B2 (en) * 2004-11-15 2010-05-11 Dennis Tool Company Drilling tool
US8720604B2 (en) * 2007-08-15 2014-05-13 Schlumberger Technology Corporation Method and system for steering a directional drilling system
US7845430B2 (en) * 2007-08-15 2010-12-07 Schlumberger Technology Corporation Compliantly coupled cutting system
US8757294B2 (en) * 2007-08-15 2014-06-24 Schlumberger Technology Corporation System and method for controlling a drilling system for drilling a borehole in an earth formation
US8899352B2 (en) * 2007-08-15 2014-12-02 Schlumberger Technology Corporation System and method for drilling
US8066085B2 (en) 2007-08-15 2011-11-29 Schlumberger Technology Corporation Stochastic bit noise control
US8763726B2 (en) * 2007-08-15 2014-07-01 Schlumberger Technology Corporation Drill bit gauge pad control
US8534380B2 (en) 2007-08-15 2013-09-17 Schlumberger Technology Corporation System and method for directional drilling a borehole with a rotary drilling system
BR112015008535A2 (pt) * 2012-12-28 2017-07-04 Halliburton Energy Services Inc sistemas e métodos de regulagem de peso sobre a broca e fase de balanceamento
US8833491B2 (en) * 2013-02-20 2014-09-16 Halliburton Energy Services, Inc. Downhole rotational lock mechanism
EP3201418B1 (de) 2014-12-12 2020-04-08 Halliburton Energy Services, Inc. Bohrwerkzeuglager und antriebsstranganordnung
CN105443041B (zh) * 2015-11-17 2018-08-10 中国石油大学(华东) 差压式钻头
WO2017146716A1 (en) 2016-02-26 2017-08-31 Halliburton Energy Services, Inc. Hybrid drill bit with axially adjustable counter-rotation cutters in center
RU184280U1 (ru) * 2018-07-27 2018-10-22 Роман Владимирович Литвинов Устройство для бурения муфт гидравлического разрыва пласта в хвостовиках эксплуатационных колонн нефтегазодобывающих скважин малого диаметра
US11795763B2 (en) 2020-06-11 2023-10-24 Schlumberger Technology Corporation Downhole tools having radially extendable elements
CN113006696B (zh) * 2021-03-31 2024-04-16 长江大学 一种用于下套管作业的可钻性扩孔器

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Also Published As

Publication number Publication date
RU2062861C1 (ru) 1996-06-27
CA2104010C (fr) 1997-12-30
CA2104010A1 (fr) 1992-10-13
FR2675197A1 (fr) 1992-10-16
FR2675197B1 (fr) 1993-07-16
EP0578690A1 (de) 1994-01-19
DE69206792D1 (de) 1996-01-25
NO305406B1 (no) 1999-05-25
NO933660L (no) 1993-10-11
WO1992018740A1 (fr) 1992-10-29
US5343964A (en) 1994-09-06
NO933660D0 (no) 1993-10-11
DE69206792T2 (de) 1996-05-30

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