EP2635767B1 - Procédé et dispositif pour fermer un trou de forage dans le sol - Google Patents

Procédé et dispositif pour fermer un trou de forage dans le sol Download PDF

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Publication number
EP2635767B1
EP2635767B1 EP11776713.7A EP11776713A EP2635767B1 EP 2635767 B1 EP2635767 B1 EP 2635767B1 EP 11776713 A EP11776713 A EP 11776713A EP 2635767 B1 EP2635767 B1 EP 2635767B1
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EP
European Patent Office
Prior art keywords
earth
closure body
borehole
earth borehole
ceiling
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.)
Not-in-force
Application number
EP11776713.7A
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German (de)
English (en)
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EP2635767A2 (fr
Inventor
Joachim Geyer
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.)
Checkpoint ABC GmbH
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Checkpoint ABC GmbH
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Filing date
Publication date
Application filed by Checkpoint ABC GmbH filed Critical Checkpoint ABC GmbH
Publication of EP2635767A2 publication Critical patent/EP2635767A2/fr
Application granted granted Critical
Publication of EP2635767B1 publication Critical patent/EP2635767B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/136—Baskets, e.g. of umbrella type
    • 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
    • E21B4/18—Anchoring or feeding in the borehole

Definitions

  • the present invention relates to a method and apparatus for closing an earth well, wherein an expandable closure body is inserted into the wellbore and expanded in diameter for the purpose of closure.
  • Subterranean resources such as oil fields or gas fields
  • Such Erdbohrlöcher can hereby be introduced from the earth's surface, but also under water from the sea or water bottom into the soil.
  • Blowout Preventer is usually attached to the upper end of the well bore or out there from the Erdbohrloch pipe section, by means of the wellbore or the thereto subsequent raw material line can be closed.
  • the said blowout preventer has a valve device which is open only when selectively controlled and otherwise automatically closes. Problems arise, however, if this closure mechanism, for example, as a result of damage does not work, or leaks between said blowout preventer and the Erdbohrloch occur in the region of the mouth of the Erdlochloch at the earth's surface.
  • an expandable closure body is introduced into the earth borehole, which is first introduced into the earth borehole in a collapsed state and then radially expanded in the earth borehole, so that a radial sealing surface located at the circumference of the expanding section opposes presses the inner wall of the borehole.
  • radially expandable closure devices are for example from the DE 20 2009 010 814 U1 , of the EP 0 842 348 B1 , of the DE 39 21 189 A1 or the US 4,462,714 known, the latter shows as a closing body an inflatable balloon to be filled in a conical cavern with concrete.
  • the radial expansion of the sealing portion takes place here for example via a clamping cone, which presses by axial displacement of an elastic clamping ring to the outside, or for example by axial squeezing of rubber rings between two collapsible abutment shoulders, so that the axially crushed rubber rings dodge radially.
  • the present invention has for its object to provide an improved method and an improved device of the type mentioned, avoid the disadvantages of the prior art and further develop the latter in an advantageous manner.
  • a secure seal the Erdbohrlochs be achieved without having to take this long processing times and difficult handling in purchasing.
  • this object is achieved by a method according to claim 1 and an apparatus according to claim 7.
  • Preferred embodiments of the invention are the subject of the dependent claims.
  • the closure body is at least partially led out of the lower end of the Erdbohrlochs, expanded in the earth chamber below the Erdbohrloch and out with an Axialdicht Structure from below against the Erdbohrloch surrounding chamber ceiling of the Erdhunt, wherein an expansion body is used, which after expansion with an edge portion placed on the chamber ceiling and spread by moving back against the filling direction.
  • the closure body has an axial sealing surface on an expandable section, the diameter of which in the expanded state of the closure body being significantly larger than the diameter of the groundwater hole.
  • a reversible feed drive is provided, by means of which the closure body is first passed through the Erdbohrloch and beyond the end of Erdbohrlochs in said earth chamber and After the expandable portion of the closure body is widened, it is moved backwards until the axial sealing surface is present at the Erdcrohrloch.
  • the sealing or pressing forces effecting the sealing seat increase with increasing pressure in the earth chamber by itself, since the prevailing in the earth chamber liquid and / or gas pressure is used to to press against the chamber ceiling over the lower Erdbohrlochmündung sitting closure body.
  • the Axialdicht Structure is pressed with a sealing force, which is directed substantially parallel to the longitudinal axis of the Erdbohrlochs upwards, against the chamber ceiling.
  • the closure body is not expanded in widened intermediate sections of the borehole, but moved directly into the earth chamber storing the liquid or gaseous raw materials to be stored, and immediately expanded there to be driven from below against the chamber ceiling.
  • the chamber ceiling of such raw material storage chambers often have Approximately considered planar chamber ceilings, which extend at least approximately perpendicular to the longitudinal axis of the Erdlochloch depending on the inclination of the Erdlochloch or such raw material storage chambers can be advantageously drilled so that the chamber ceilings around the mouth of the Erdbohrlochs extend substantially perpendicular to the longitudinal direction of the Erdbohrlochs in the mouth region ,
  • chamber sections can be drilled in which the chamber ceiling around the mouth of the Erdbohrlochs around at an angle in the range of 70 ° -110 °, in particular about 80 ° -100 ° and in particular about 90 ° +/- 5 ° extend, that is, the chamber cover extends at least approximately around the mouth of the borehole approximately
  • the sealing of the earth borehole exclusively by axial, i. in the direction of the Erdbohrlochs acting pressing of the Axialdicht statue the closure body against the chamber ceiling done, the seal causing axial contact pressure by retraction of the closure body to the Erdbohrloch out, but in particular can also be done by taking advantage of the prevailing in the chamber fluid pressure forces.
  • the closure body may have a sufficiently large in the expanded state Axialdruck-Beetzschlagungs constitutional which is provided on the side facing away from the chamber ceiling of the closure body and advantageously at least approximately parallel to the chamber ceiling extends and / or may be approximately planar, so that the fluid pressure forces a predominantly axially exert upward force on the closure body. Said axial pressure-loading surface of the closure body thus captures, so to speak, the fluid pressure and is so contoured and sized large enough to press the Axialdicht Structure the closure body with sufficient contact pressure against the chamber ceiling.
  • said expandable sealing portion of the closure body can basically be designed differently and expanded in various ways.
  • said expandable Seal section comprise a hinged or foldable screen element whose outer edge portion forms said axial sealing surface.
  • the closure body and / or its expandable sealing portion is designed such that the Axialdicht Structure spreads under the pressure of the liquid in the earth chamber with the chamber ceiling and schabend or digging to the said chamber ceiling applies or in this piece digs.
  • the expandable sealing portion may be formed as a Sp Dretzpus, which is set after widening with an edge portion on the chamber ceiling and spread by depressing a further inner portion opposite to the insertion direction. Upon depression of the central portion of the Sp DrISSkorpus the axial sealing surface forming edge portion widens a bit further, so that the said Axialdichtabites digs into the wall of the chamber ceiling or hineinschabt, whereby a particularly efficient sealing is achieved.
  • the depression of the central portion of the Sp Schwarzkorpus can be advantageously effected by the pending Erdhunt réelle there or at least supported.
  • said Sp Schwarzkorpus be sufficiently elastic and / or deformable, so that it can be deformed under the Erdsch réelle accordingly.
  • Said Sp Schwarzkorpus can be formed in a development of the invention - roughly speaking - conical, trough, cup or cone-shaped, so that in the expanded state of the sealing portion of the outer edge portion of the Sp Schwarzkorpus is present on the chamber ceiling and from said edge portion of the Contour of Sp Schwarzkorpus extending inwardly rising so that the Sp Schwarzkorpus is increasingly spaced from the borehole away from the chamber ceiling.
  • said Sp Schwarzkorpus have an umbrella shape, in which the flanks of the Sp Schwarzkorpus - viewed in section - flat angle, for example in an angular range between 10 ° and 35 ° to a plane extending perpendicular to the longitudinal axis of the Erdbohrlochs or the closure body is.
  • the umbrella-like Sp Schwarzkorpus is hereby spread with its pointing to the chamber ceiling edge portion, so that there is a flat concave to the Erdbohrloch Sp Schwarzschadorel.
  • This umbrella-shaped Sp Schwarzkorpus is then pressed from below against the chamber ceiling so that the umbrella-shaped Sp Schwarzkorpus spread even further and / or is suppressed, so that the Sp Schwarzkorpus spreads with its Axialdicht Structure forming edge portion against the chamber ceiling.
  • Eingrab Koch thereby produced a particularly effective sealing can be achieved.
  • the acting from under against the screen fluid pressure tries to spread the screen even further, causing it spreads on the chamber ceiling.
  • the expandable sealing portion of the closure body may also comprise an expandable by pressurized fluid filling annular balloon or balloon portion comprising a collapsible shell defining a pressure fluid space into which a pressurized fluid, such as oil or a gas can be introduced.
  • a pressurized fluid such as oil or a gas
  • the balloon is guided in the collapsed state, so that the annular balloon has a diameter smaller than the Erdbohrloch.
  • pressurized fluid is forced into the interior of the balloon, causing it to expand to a diameter significantly greater than that of the borehole so that the rearwardly oriented annular balloon section can be pressed against the chamber ceiling to seal.
  • the expandable sealing portion of the closure body may also have other expansion mechanisms, for example radially outwardly movable sealing jaws or the like.
  • the sealing portion of the closure body and / or the Axialdicht Structure provided thereon has an outer diameter which is at least 150% of the Erdbohrloch tomessers, preferably more than 200% of the Erdbohrloch bemessers.
  • Said Axialdicht preparation may be formed as an annular surface whose inner diameter is also significantly larger than said Erdbohrloch tomesser.
  • the width of said annular surface is relatively narrow in order to achieve high surface pressures on the chamber ceiling.
  • the inner diameter of said annular sealing surface may be more than 125% of the Erdbohrloch tomessers, or if the outer diameter of the Axialdicht composition is more than 200% of the Erdbohrloch tomessers, 150% or amount to more of the Erdbohrloch bemessers.
  • the closure body can in principle be introduced in various ways into the earth borehole and the borehole mouth can be positioned in the earth chamber from below to cover the borehole.
  • the closure body is introduced together with a drill head on a drill rod in the Erdbohrloch, wherein the drill head can be operated drilling, for example by rotating the boring bar about its longitudinal axis.
  • the advantageously arranged in the insertion direction in front of the closure body drill head can be left in the earth chamber, when the closure body is mounted, the drill head can remain in principle connected to the closure body, or optionally alternatively separated and can be sunk in the earth chamber.
  • the said closure body can also be introduced into the earth borehole on a self-propelled wagon, said self-propelled wagon being able to be designed, for example, in the manner of a cartridge or a lift cage, which can comprise driveable driving wheels which can be driven in the region of radial peripheral surfaces pressed against the Erdbohrlochwandung.
  • a self-propelled wagon By means of such a self-propelled wagon, the closure body is also guided through the Erdbohrloch until the closure body has at least partially reached the underlying Erdhunt. After widening of the closure body of the car still located in the Erdbohrloch is moved back until the closure body is pending with its Axialdicht Structure on the chamber ceiling.
  • the closure body can in this case comprise in an advantageous embodiment of the invention, a valve to selectively enter even with mounted closure body liquid or gas from the earth chamber in the Erdbohrloch and leak over this, for example to allow a pressure reduction or located in the Erdhunt raw materials win.
  • a valve to selectively enter even with mounted closure body liquid or gas from the earth chamber in the Erdbohrloch and leak over this, for example to allow a pressure reduction or located in the Erdcrohrloch.
  • a closure body provided with such a valve device can also be introduced into the earth borehole even before any problems or leaks occur, for example, during the formation of the earth borehole.
  • the valve device is kept open. As soon as problems occur, it can be sealed by closing the valve device.
  • the valve device is self-switching designed such that it only goes into the open position with targeted control and automatically closes in case of failure of the control, for example, by appropriate bias.
  • Fig. 1 shows an earth well 1, which connects the seabed 2 with an underlying earth chamber 3, in which, for example, petroleum or other degradable raw materials are stored.
  • the device 5 is lowered to close the Erdloch 1 from above and introduced into the Erdloch 1.
  • the said device 5 in this case comprises the from FIGS. 2 to 5 closer apparent closure body 6, which is introduced via a drill rod 7 or other suitable feed and / or guide means from above into the Erdbohrloch 1 and driven there. If a boring bar 7 is used in the above-mentioned manner, the boring bar feed drive provided on the platform 4 can be used as the feed device 8.
  • the sealing portion 9 comprises a hinged or foldable screen element 10, which may comprise stabilizing support struts in the manner of a rain or parasol and a screen membrane carried thereby.
  • the mentioned support struts can to be folded transversely to the longitudinal axis of the closure body or tangentially on the outer periphery of subsequent folding axes, so that the shield membrane unfolds in the manner shown.
  • Said umbrella membrane is made of a sufficiently stable, deformable material such as a high-strength, for example, fiber fabric-reinforced cloth and / or laminate and / or sheet material, for example in the form of a multi-layer Aramidmaschinelaminats.
  • a widening drive 11 is provided, which may be, for example, a mechanical adjusting mechanism for the screen element 10 on the closure body 6 in the illustrated embodiment.
  • the closing body 6 is retracted upward by reversing the feeding device 8 against the insertion direction until the sealing section 9 abuts the chamber ceiling 12 of the earth chamber 3 and the axial sealing surface 13 located on the sealing section 9 is pressed against the chamber ceiling 12 becomes.
  • the Axialdicht Structure 13 is formed as an annular surface and advantageously disposed on the outer edge of the sealing portion 9, wherein the Axialdicht Structure 13 is located on a rearwardly oriented contour of said sealing portion 9.
  • the axial sealing surface 13 is located at a portion of said sealing portion 9, which faces the chamber ceiling 12 in the expanded state of said sealing portion 9, cf. Fig. 5 ,
  • the sealing portion 9 in the expanded state forms a slightly concave to the chamber ceiling 12, cup-shaped expansion body whose flanks rise at a low angle to the chamber ceiling 12, see. Fig. 5 .
  • the angle of inclination of the contour or the flanks of the sealing portion 9 can vary here, advantageously quite flat designs are provided in order to achieve a high spreading effect.
  • the sealing portion 9 may be inclined at an angle of 2x 5 ° to 2x 20 °, so that results in a total of shallow cone. Is the sealing portion 9 in the sealing Position according to Fig. 5 , the pressure p prevailing in the earth chamber 3 tries to flatten the seal section 9 of the closure body 6 that is increasing towards the center. If this yields slightly, there is a spreading effect, in which the axial sealing surface 13 provided at the edge widens slightly further radially, thereby incorporating into the material of the chamber ceiling 12.
  • the closure body 6 can be introduced, for example together with a drill head 14 in the Erdbohrloch 1, wherein advantageously the drill head 14 is arranged in the insertion direction in front of the closure body 6 and has an at least slightly larger diameter than the closure body 6 in its collapsed state.
  • the closure body 6 can be inserted into the earth chamber 3 at the same time as the earth borehole 1 is being introduced into it, and be mounted in the earth chamber 3 at its mouth region.
  • the drill head 14 can remain in the earth chamber 3 and / or remain connected to the closure body 6.
  • the drill head 14 could also be loosened and sunk in the earth chamber 3.
  • the execution corresponds to the Fig. 6 of the previously described, so that reference is made to the preceding embodiment.
  • Fig. 7 shows a further embodiment of the invention, according to which the closure body 6 is inserted by means of a self-propelled trolley 15 in the Erdbohrloch.
  • Said carriage 15 in this case comprises on its peripheral side feed means, which may be formed as drivable wheels 16, which are pressed against the inner wall of the Erdbohrlochs 1.
  • the carriage 15 may comprise pairs of wheels arranged on opposite sides.
  • the feed device 8 is in this case arranged on the self-propelled trolley 15 and may, for example, comprise a motor drive for the said wheels 16, wherein a power supply can take place for example via a line from the earth or sea surface.
  • an expandable sealing portion 9 which comprises a fillable balloon 17, which has a diameter smaller than the Erdbohrloch designedmesser in the collapsed state.
  • a fillable balloon 17 which has a diameter smaller than the Erdbohrloch tomesser in the collapsed state.
  • the said balloon 17 is annular in the illustrated embodiment, but could also mushroom-shaped or be disc-shaped.
  • the backward-oriented contour of said balloon 17 forms in the expanded state according to Fig. 7 the axial sealing surface 13 which can be pressed against the chamber ceiling 12 of the earth chamber 3.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Sealing Devices (AREA)

Claims (14)

  1. Procédé pour fermer un trou de forage dans le sol (1), selon lequel un corps de fermeture (6) pouvant être élargi est introduit dans le trou de forage dans le sol (1) et est élargi en diamètre en vue de la fermeture, le corps de fermeture (6) étant sorti au moins en partie de l'extrémité inférieure du trou de forage dans le sol (1), élargi dans la cavité souterraine (3) sous le trou de forage dans le sol (1) et guidé du bas avec une surface d'étanchéité axiale contre le plafond de cavité (12) de la cavité souterraine (3) entourant le trou de forage dans le sol (1), caractérisé en ce
    qu'un corps d'expansion est utilisé, qui est placé avec une partie de bord sur le plafond de cavité (12) après l'élargissement et qui est déployé par un mouvement de retour opposé au sens d'introduction.
  2. Procédé selon la revendication précédente, le corps de fermeture (6) étant introduit dans le trou de forage dans le sol (1) conjointement avec une tête de forage (14) sur une tige de forage (7), la tête de forage (14) étant disposée avant le corps de fermeture (6) dans le sens d'introduction et étant laissée dans la cavité souterraine (3) même après la fermeture du trou de forage dans le sol.
  3. Procédé selon la revendication 1, le corps de fermeture (6) étant introduit dans le trou de forage dans le sol (1) sur un chariot automoteur, qui est ramené dans le trou de forage dans le sol (1) après l'élargissement du corps de fermeture (6), jusqu'à ce que le corps de fermeture (6) affleure avec sa surface d'étanchéité axiale (13) contre le plafond de cavité (12) de la cavité souterraine (3).
  4. Procédé selon l'une des revendications précédentes, la cavité souterraine (3) étant une cavité réservoir stockant des matières premières liquides ou gazeuses, dont le plafond de cavité (12) s'étend autour de l'embouchure du trou de forage dans le sol (1) essentiellement perpendiculairement à l'axe longitudinal du trou de forage dans le sol, la surface d'étanchéité axiale (13) du corps de fermeture (6) s'étendant également essentiellement perpendiculairement à l'axe longitudinal du trou de forage dans le sol (1), le corps de fermeture (6) étant pressé avec la surface d'étanchéité axiale (13) axialement dans la direction de l'axe longitudinal du trou de forage dans le sol (1) contre le plafond de cavité (12).
  5. Procédé selon l'une des revendications précédentes, l'obturation du trou de forage dans le sol (1) étant effectuée exclusivement par pression axiale, agissant dans la direction de l'axe longitudinal du trou de forage dans le sol (1), de la surface d'étanchéité axiale (13) contre le plafond de cavité, la surface d'étanchéité axiale (13) étant pressée contre le plafond de cavité (12) par exposition du corps de fermeture (6) à l'action de forces de fluide agissant dans la cavité souterraine (3) et/ou par rétraction du corps de fermeture vers le trou de forage dans le sol (1) et/ou dans le trou de forage dans le sol (1).
  6. Procédé selon l'une des revendications précédentes, le corps de fermeture (6) comprenant un élément de protection (10) dépliable, la surface d'étanchéité axiale (13) étant prévue sur la partie de bord extérieure de celui-ci, l'élément de protection (10) étant déplié dans la cavité souterraine (3) sous le trou de forage dans le sol (1) de telle sorte que la partie de bord de l'élément de protection (10) disposée en direction du trou de forage est déployée jusqu'à ce que le corps de fermeture (6) forme une protection concave vers le trou de forage dans le sol (1), et l'élément de protection déplié étant pressé axialement dans la direction longitudinale du trou de forage dans le sol (1) avec la surface d'étanchéité axiale (13) contre le plafond de cavité (12) par rétraction du corps de fermeture (6) et/ou par exposition de l'élément de protection (10) à des forces de fluide agissant dans la cavité souterraine (3) de sorte que l'élément de protection se déploie encore avec aplatissement de sa concavité et qu'il est écarté contre le plafond de cavité (12).
  7. Dispositif pour fermer un trou de forage dans le sol (1), comprenant un corps de fermeture (6) pouvant être élargi, qui présente un diamètre inférieur au trou de forage dans le sol (1) à l'état replié, le corps de fermeture (6) comportant une surface d'étanchéité axiale (13) sur une partie d'étanchéité (9) pouvant être élargie, le diamètre D de cette surface d'étanchéité axiale étant supérieur au diamètre d du trou de forage dans le sol à l'état élargi du corps de fermeture (6), caractérisé en ce qu'un entraînement d'avance (8) réversible est prévu, au moyen duquel le corps de fermeture (6) peut être déplacé vers l'avant au-delà de l'extrémité du trou de forage dans le sol (1) dans la cavité souterraine (3) se trouvant en dessous et peut être déplacé après l'élargissement de la partie d'étanchéité (9) vers l'arrière avec la surface d'étanchéité axiale (13) contre le plafond de cavité (12) de la cavité souterraine (3) entourant le trou de forage dans le sol (1).
  8. Dispositif selon la revendication précédente, la partie d'étanchéité (9) pouvant être élargie comprenant un élément de protection (10) ouvrable ou dépliable, la surface d'étanchéité axiale (13) étant prévue sur la partie de bord extérieure de celui-ci.
  9. Dispositif selon l'une des deux revendications précédentes, la partie d'étanchéité (9) pouvant être élargie formant dans la position élargie un corps d'expansion, de préférence en forme de cuvette ou de cône, concave sur le côté supérieur qui fait face au plafond de cavité (12) conformément à l'usage prévu, ledit corps d'expansion formant la surface d'étanchéité axiale (13) avec sa partie de bord extérieure et étant réalisé à l'inférieur de la surface d'étanchéité axiale (13) ascendant vers le centre du corps de fermeture (6) et/ou étant espacé du plafond de cavité (12).
  10. Dispositif selon la revendication précédente, le corps d'expansion étant réalisé déformable, de préférence déformable élastiquement de sorte que, par effet de pression provenant de la cavité souterraine (3), le corps d'expansion peut être aplati ou pressé pour devenir plus plat et peut être ainsi élargi radialement dans la zone de la surface d'étanchéité axiale (13).
  11. Dispositif selon l'une des revendications précédentes 7 à 10, la partie d'étanchéité (9) pouvant être élargie présentant à l'état élargi un diamètre extérieur égal à au moins 150 %, de préférence plus de 200 % du diamètre d du trou de forage dans le sol.
  12. Dispositif selon l'une des revendications précédentes 7 à 11, la surface d'étanchéité axiale (13) formant une surface annulaire dont le diamètre intérieur est supérieur au diamètre du trou de forage dans le sol, et est égal de préférence à au moins 140 %, de préférence plus de 180 % du diamètre d du trou de forage dans le sol.
  13. Dispositif selon l'une des revendications précédentes 7 à 12, le corps de fermeture (6) comprenant un dispositif de vanne, qui est disposé dans un canal de jonction, qui dispose d'un côté d'une ouverture vers la cavité souterraine (3) et de l'autre côté d'une ouverture vers le trou de forage dans le sol (1), de sorte qu'en position de vanne ouverte, du fluide peut s'écouler de la cavité souterraine (3) dans le trou de forage dans le sol (1).
  14. Dispositif selon l'une des revendications précédentes 7 à 13, le corps de fermeture (6) comprenant à l'état d'obturation élargi une surface d'application de pression s'étendant essentiellement de manière plane, transversalement à l'axe longitudinal du trou de forage dans le sol, qui est exposée à l'action de la pression de fluide régnant dans la cavité souterraine (3) et qui est opposée au plafond de cavité (12) et présente une aire qui est égale à plus de 200 % de l'aire de la section droite du trou de forage dans le sol (1).
EP11776713.7A 2010-11-03 2011-10-28 Procédé et dispositif pour fermer un trou de forage dans le sol Not-in-force EP2635767B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010050368A DE102010050368A1 (de) 2010-11-03 2010-11-03 Verfahren und Vorrichtung zum Verschließen eines Erdbohrlochs
PCT/EP2011/005459 WO2012059202A2 (fr) 2010-11-03 2011-10-28 Procédé et dispositif pour fermer un trou de forage dans le sol

Publications (2)

Publication Number Publication Date
EP2635767A2 EP2635767A2 (fr) 2013-09-11
EP2635767B1 true EP2635767B1 (fr) 2014-09-03

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EP11776713.7A Not-in-force EP2635767B1 (fr) 2010-11-03 2011-10-28 Procédé et dispositif pour fermer un trou de forage dans le sol

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US (1) US20130269939A1 (fr)
EP (1) EP2635767B1 (fr)
CA (1) CA2816761A1 (fr)
DE (1) DE102010050368A1 (fr)
RU (1) RU2013125474A (fr)
WO (1) WO2012059202A2 (fr)

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CN112282640A (zh) * 2020-10-21 2021-01-29 重庆市地质矿产勘查开发局南江水文地质工程地质队 一种破碎地层裸孔钻进方法
CN114233202B (zh) * 2021-11-22 2023-09-26 煤炭科学技术研究院有限公司 一种含有能够随风压自动调节开合状态的舱体的钻杆
CN114233203B (zh) * 2021-11-22 2023-09-26 煤炭科学技术研究院有限公司 安装在钻杆壁上由风压控制开合状态的开关装置及钻杆

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US1676785A (en) * 1924-10-20 1928-07-10 James O Lewis Method of and apparatus for grouting the walls of an oil well
US3130787A (en) * 1960-09-12 1964-04-28 James C Mason Well bridging tool
US4624130A (en) * 1982-06-21 1986-11-25 Testrac, Inc. Method for determining borehole or cavity configuration through inert gas interface
US4462714A (en) * 1983-04-04 1984-07-31 The Dow Chemical Company Method and apparatus for setting a cement plug in the wide-mouth shaft of an earth cavern
US4685834A (en) * 1986-07-02 1987-08-11 Sunohio Company Splay bottom fluted metal piles
US4834175A (en) 1988-09-15 1989-05-30 Otis Engineering Corporation Hydraulic versa-trieve packer
FR2737533B1 (fr) 1995-08-04 1997-10-24 Drillflex Manchon tubulaire gonflable pour tuber ou obturer un puits ou une canalisation
AR018459A1 (es) * 1998-06-12 2001-11-14 Shell Int Research Metodo y disposicion para mover equipos hacia y a traves de un conducto y dispositivo de vaiven para ser usado en dicha disposicion
US6454001B1 (en) * 2000-05-12 2002-09-24 Halliburton Energy Services, Inc. Method and apparatus for plugging wells
DE202009010814U1 (de) 2009-08-12 2009-12-17 Desoi Gmbh Vorrichtung zum Verschluss eines Bohrloches und anschließender Injektion mit Injektionsmaterial
US20120000656A1 (en) * 2010-07-01 2012-01-05 Basimah Khulusi Apparatus And Methods For Producing Oil and Plugging Blowouts

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Publication number Publication date
WO2012059202A3 (fr) 2013-03-28
US20130269939A1 (en) 2013-10-17
RU2013125474A (ru) 2014-12-10
CA2816761A1 (fr) 2012-05-10
DE102010050368A1 (de) 2012-05-03
EP2635767A2 (fr) 2013-09-11
WO2012059202A2 (fr) 2012-05-10

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