EP2488720A2 - Perforating gun having self-closing penetration holes - Google Patents

Perforating gun having self-closing penetration holes

Info

Publication number
EP2488720A2
EP2488720A2 EP10790718A EP10790718A EP2488720A2 EP 2488720 A2 EP2488720 A2 EP 2488720A2 EP 10790718 A EP10790718 A EP 10790718A EP 10790718 A EP10790718 A EP 10790718A EP 2488720 A2 EP2488720 A2 EP 2488720A2
Authority
EP
European Patent Office
Prior art keywords
gun
tube
medium
swellable
barrel
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Withdrawn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
EP10790718A
Other languages
German (de)
French (fr)
Inventor
Stefan Volberg
Frank Preiss
Liam Mcnelis
Roland Peeters
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.)
DynaEnergetics GmbH and Co KG
Original Assignee
DynaEnergetics GmbH and Co KG
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 DynaEnergetics GmbH and Co KG filed Critical DynaEnergetics GmbH and Co KG
Publication of EP2488720A2 publication Critical patent/EP2488720A2/en
Withdrawn legal-status Critical Current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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • E21B43/117—Shaped-charge perforators
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/119—Details, e.g. for locating perforating place or direction

Definitions

  • the invention relates to a perforating gun with an outer gun barrel inside which is coaxially disposed an inner tube carrying perforators which are ignitable via a detonating cord passing through the cannon barrel and, upon ignition, penetrate the cannon barrel to form bullet holes, means for automatically closing the penetration holes are provided after the shot and this agent is a swellable medium.
  • Perforation guns are used in deep hole blasting in the oil and gas industry, as well as in hydraulic engineering to connect the hole to the storage horizon.
  • the well is usually a wellbore fluid. This can be an introduced liquid or the medium to be pumped from the surrounding rock.
  • a perforation gun consists of an outer cannon tube inside which perforators - usually hollow or projectile charges - are arranged, which shoot when fired radially outward through the gun barrel.
  • perforators - usually hollow or projectile charges - are arranged, which shoot when fired radially outward through the gun barrel.
  • the shaped charges are carried by a thin-walled support tube which extends coaxially inside the gun barrel.
  • CONFIRMATION COPY this agent are cartridges with a swellable 2-component foam. These cartridges are located in the gun barrel and break through the detonated detonating cord, causing foam to escape from the cartridges, swelling and plugging the bullet holes.
  • the invention has for its object to improve a perforation gun according to the preamble of claim 1 so that the swellable medium requires a small space and is easy to integrate into the perforation gun.
  • no additional part to be included in the perforation gun in one embodiment as possible no additional part to be included in the perforation gun.
  • the swellable medium is arranged in a planar manner in the interior of the perforation gun.
  • Flat structures require less space and are easily integrated into the perforation gun.
  • the swellable medium is arranged as a coating in the perforation gun.
  • a coating does not require an additional part in the perforation gun and is therefore easily integrated.
  • the coating is disposed on the interior of the gun barrel.
  • the coating may be applied to an additional thin-walled tube which is coaxial between the outer gun tube and the inner tube. Both tubes are excellent for one
  • the swellable medium is in another embodiment as a solid material, for example coming from the roll, on the gun barrel or an additional thin-walled tube, which is coaxial between the Cannon tube and the inner tube is applied by wrapping. Wrapping is a simple craft activity that is also cost effective.
  • the swellable medium can also be applied as a solid material, for example as a blank, to the gun barrel and / or an additional thin-walled tube, which is located coaxially between the gun barrel and the inner tube, exclusively in the area of the bullet holes. Round blanks are easy to produce and easy to apply.
  • the swellable medium itself is a tube or tube which is coaxial between the outer gun tube and the inner tube.
  • the swellable medium by the ignition of the perforators, by contact with the wellbore medium such as oil, gas, water, at
  • Deep hole drilling used rinsing liquids or be activated by other borehole-related influences, wherein it swells and thereby closes the bullet holes.
  • the swellable medium consists in a preferred embodiment of an elastomer compound, which by contact, for example, with
  • Explosion gas from perforators is activated and swells, causing the bullet holes to become clogged.
  • the swellable medium can also be activated by an approximation of the internal pressure of the gun to the pressure prevailing in the bore, which is generally much higher. This is done by the intended shooting through the cannon outer wall by means of the perforators brought into the cannon for ignition.
  • the swellable medium may be disposed as a coating in the perforating gun, be applied as a solid material by wrapping, or even be a tube or hose coaxial between the outer gun barrel and the inner tube.
  • the invention is characterized in that no “debris” (fragments of the perforators) fall into the bore, no external intervention is required to close the bullet holes.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Drilling Tools (AREA)
  • Nozzles (AREA)

Abstract

The invention relates to a perforating gun having an outer gun barrel, inside of which an inner barrel is coaxially arranged, carrying perforators that can be ignited by means of a detonating cord leading through the gun barrel and, after ignition, pierce the gun barrel in order to form penetration holes, wherein means are provided for automatically closing the penetration holes after the blast, said means being a swellable medium. In order to ensure that the swellable medium requires little space in the perforating gun and can be easily integrated into the perforating gun, according to the invention the swellable medium is disposed in a laminary manner inside the perforating gun.

Description

Perforationskanone mit selbstverschließenden Durchschusslöchern  Perforation gun with self-closing bullet holes
Die Erfindung betrifft eine Perforationskanone mit einem äußeren Kanonenrohr, in dessen Innerem koaxial ein inneres Rohr angeordnet ist, welches Perforatoren trägt, die über eine durch das Kanonenrohr führende Sprengschnur zündbar sind und nach Zündung das Kanonenrohr zur Bildung von Durchschusslöchern durchschlagen, wobei Mittel zum selbsttätigen Verschließen der Durchschusslöcher nach dem Schuss vorgesehen sind und dieses Mittel ein quellfähiges Medium ist. The invention relates to a perforating gun with an outer gun barrel inside which is coaxially disposed an inner tube carrying perforators which are ignitable via a detonating cord passing through the cannon barrel and, upon ignition, penetrate the cannon barrel to form bullet holes, means for automatically closing the penetration holes are provided after the shot and this agent is a swellable medium.
Eine solche Perforationskanone ist beschrieben in EP 1 685 308 B1. Perforationskanonen werden in Tiefbohrlochsprengungen in der Erdöl- und Erdgasindustrie, sowie im Wasserbau zur Anbindung der Bohrung an den Speicherhorizont eingesetzt. In der Bohrung befindet sich in der Regel eine Bohrlochflüssigkeit. Diese kann eine eingebrachte Flüssigkeit oder das zu fördernde Medium aus dem umgebenden Gestein sein. Such a perforating gun is described in EP 1 685 308 B1. Perforation guns are used in deep hole blasting in the oil and gas industry, as well as in hydraulic engineering to connect the hole to the storage horizon. The well is usually a wellbore fluid. This can be an introduced liquid or the medium to be pumped from the surrounding rock.
Eine Perforationskanone besteht aus einem äußeren Kanonenrohr, in dessen Innerem Perforatoren - üblicherweise Hohl- oder Geschossladungen - angeordnet sind, die bei Zündung radial nach außen durch das Kanonenrohr schießen. Üblicherweise werden die Hohlladungen durch ein dünnwandiges Trägerrohr getragen, welches koaxial im Inneren des Kanonenrohres verläuft. ImA perforation gun consists of an outer cannon tube inside which perforators - usually hollow or projectile charges - are arranged, which shoot when fired radially outward through the gun barrel. Usually, the shaped charges are carried by a thin-walled support tube which extends coaxially inside the gun barrel. in the
Kanonenrohr verbleiben nach dem Schuss Durchschusslöcher. Gun barrel remain bullet holes after shot.
Problematisch bei diesem Verfahren sind Rest- und Bruchstücke der Perforatoren und der Bauteile im Inneren des Kanonenrohrs, die nach dem Schuss durch die Durchschusslöcher in die Bohrung fallen können. Aus diesemThe problem with this method are residues and fragments of the perforators and the components inside the gun barrel that can fall into the hole after the shot through the bullet holes. For this
Grund sind, wie in der EP 1 685 308 beschrieben, Mittel zum selbsttätigen Verschließen der Durchschusslöcher nach dem Schuss vorgesehen, wobei Reason are, as described in EP 1 685 308, means for automatically closing the bullet holes after the shot provided, wherein
BESTÄTIGUNGSKOPIE dieses Mittel Kartuschen mit einem quellfähigen 2-Komponenten-Schaum sind. Diese Kartuschen sind im Kanonenrohr angeordnet und brechen durch die gezündete Sprengschnur auf, wodurch Schaum aus den Kartuschen austritt, aufquillt und die Durchschusslöcher verstopft. CONFIRMATION COPY this agent are cartridges with a swellable 2-component foam. These cartridges are located in the gun barrel and break through the detonated detonating cord, causing foam to escape from the cartridges, swelling and plugging the bullet holes.
Der Erfindung liegt die Aufgabe zugrunde, eine Perforationskanone nach dem Oberbegriff des Anspruches 1 so zu verbessern, dass das quellfähige Medium einen geringen Raum erfordert und leicht in die Perforationskanone integrierbar ist. Außerdem soll in einer Ausführungsform möglichst kein zusätzliches Teil in die Perforationskanone aufgenommen werden. The invention has for its object to improve a perforation gun according to the preamble of claim 1 so that the swellable medium requires a small space and is easy to integrate into the perforation gun. In addition, in one embodiment as possible no additional part to be included in the perforation gun.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das quellfähige Medium flächenförmig im Inneren der Perforationskanone angeordnet ist. Flächenförmige Gebilde erfordern einen geringeren Raum und sind leicht in die Perforationskanone integrierbar. This object is achieved in that the swellable medium is arranged in a planar manner in the interior of the perforation gun. Flat structures require less space and are easily integrated into the perforation gun.
In einer bevorzugten Ausführungsform ist das quellfähige Medium als Beschichtung in der Perforationskanone angeordnet. Eine Beschichtung erfordert kein zusätzliches Teil in der Perforationskanone und ist dadurch leicht integrierbar. In a preferred embodiment, the swellable medium is arranged as a coating in the perforation gun. A coating does not require an additional part in the perforation gun and is therefore easily integrated.
Bevorzugt ist die Beschichtung auf dem Inneren des Kanonenrohrs angeordnet. Alternativ kann die Beschichtung auf ein zusätzliches dünnwandiges Rohr aufgebracht sein, welches sich koaxial zwischen dem äußeren Kanonenrohr und dem inneren Rohr befindet. Beide Rohre eignen sich vorzüglich für einePreferably, the coating is disposed on the interior of the gun barrel. Alternatively, the coating may be applied to an additional thin-walled tube which is coaxial between the outer gun tube and the inner tube. Both tubes are excellent for one
Beschichtung. Coating.
Das quellfähige Medium ist in einer anderen Ausführungsform als festes Material, zum Beispiel von der Rolle kommend, auf das Kanonenrohr oder ein zusätzliches dünnwandiges Rohr, welches sich koaxial zwischen dem Kanonenrohr und dem inneren Rohr befindet, durch Umwickeln aufgebracht. Umwickeln ist eine einfache handwerkliche Tätigkeit, die auch kostengünstig ist. The swellable medium is in another embodiment as a solid material, for example coming from the roll, on the gun barrel or an additional thin-walled tube, which is coaxial between the Cannon tube and the inner tube is applied by wrapping. Wrapping is a simple craft activity that is also cost effective.
Das quellfähige Medium kann auch als festes Material zum Beispiel als Ronde, auf das Kanonenrohr und/oder ein zusätzliches dünnwandiges Rohr, welches sich koaxial zwischen dem Kanonenrohr und dem inneren Rohr befindet, ausschließlich im Bereich der Durchschusslöcher aufgebracht sein. Ronden sind leicht herzustellen und leicht aufzubringen. In einer anderen bevorzugten Ausführungsform ist das quellfähige Medium selbst ein Rohr oder Schlauch, welches/er sich koaxial zwischen dem äußeren Kanonenrohr und dem inneren Rohr befindet. The swellable medium can also be applied as a solid material, for example as a blank, to the gun barrel and / or an additional thin-walled tube, which is located coaxially between the gun barrel and the inner tube, exclusively in the area of the bullet holes. Round blanks are easy to produce and easy to apply. In another preferred embodiment, the swellable medium itself is a tube or tube which is coaxial between the outer gun tube and the inner tube.
In allen Ausführungsformen kann das quellfähige Medium durch die Zündung der Perforatoren, durch Kontakt mit dem Bohrlochmedium wie öl, Gas, Wasser, beiIn all embodiments, the swellable medium by the ignition of the perforators, by contact with the wellbore medium such as oil, gas, water, at
Tieflochbohrungen verwendete Spülflüssigkeiten oder durch andere bohrlochbedingte Einflüsse aktiviert werden, wobei es aufquillt und dadurch die Durchschusslöcher verschließt. Das quellfähige Medium besteht in einer bevorzugten Ausführungsform aus einem Elastomer Compound, welcher durch Kontakt zum Beispiel mit Deep hole drilling used rinsing liquids or be activated by other borehole-related influences, wherein it swells and thereby closes the bullet holes. The swellable medium consists in a preferred embodiment of an elastomer compound, which by contact, for example, with
• Ol  • oil
• Gas  • gas
• andere Arten von Kohlenwasserstoffen  • other types of hydrocarbons
· Wasser  · Water
• Bohrlochspülflüssigkeiten, die bei Tieflochbohrungen Verwendung finden • Borehole scavenging fluids used in deep hole drilling
• Explosionsgasen von Perforatoren aktiviert wird und aufquillt, so dass die Durchschusslöcher verstopft werden. Das quellfähige Medium kann auch durch eine Angleichung des Kanoneninnendruckes an den, in der Bohrung herrschenden, in der Regel wesentlich höheren Druck, aktiviert werden. Dies geschieht durch das bestimmungsgemäße Durchschießen der Kanonenaußenwand mittels der in der Kanone zur Zündung gebrachten Perforatoren. • Explosion gas from perforators is activated and swells, causing the bullet holes to become clogged. The swellable medium can also be activated by an approximation of the internal pressure of the gun to the pressure prevailing in the bore, which is generally much higher. This is done by the intended shooting through the cannon outer wall by means of the perforators brought into the cannon for ignition.
Bevorzugt ist die Verwendung eines quellfähigen flächenförmigen Mediums im Inneren einer Perforationskanone mit einem äußeren Kanonenrohr, in dessen Innerem koaxial ein inneres Rohr angeordnet ist, welches Perforatoren trägt, die über eine durch das Kanonenrohr führende Sprengschnur zündbar sind und nach Zündung das Kanonenrohr zur Bildung von Durchschusslöchern durchschlagen, wobei das quellfähige Medium durch die Zündung der Perforatoren, durch Kontakt mit dem Bohrlochmedium wie Öl, Gas, Wasser, bei Tieflochbohrungen verwendete Spülflüssigkeiten oder durch andere bohrlochbedingte Einflüsse aktiviert wird, aufquillt und dadurch diePreference is given to the use of a swellable sheet-like medium in the interior of a perforation gun with an outer gun barrel inside which is coaxially disposed an inner tube which carries perforators which are ignitable via a detonating cord through the cannon barrel and, after ignition, the cannon barrel to form bullet holes penetrate, wherein the swellable medium is activated by the ignition of the perforators, by contact with the wellbore medium such as oil, gas, water, used in deep well drilling fluids or other borehole-related influences, swells and thereby the
Durchschusslöcher verschließt. Closes bullet holes.
Das quellfähige Medium kann als Beschichtung in der Perforationskanone angeordnet sein, als festes Material durch Umwickeln aufgebracht sein oder selbst ein Rohr oder Schlauch sein, welches/er sich koaxial zwischen dem äußeren Kanonenrohr und dem inneren Rohr befindet. The swellable medium may be disposed as a coating in the perforating gun, be applied as a solid material by wrapping, or even be a tube or hose coaxial between the outer gun barrel and the inner tube.
Die Erfindung zeichnet sich dadurch aus, dass kein„debris" (Bruchstücke der Perforatoren) in die Bohrung fällt. Es ist kein Eingreifen von außen erforderlich um die Durchschusslöcher zu verschließen. The invention is characterized in that no "debris" (fragments of the perforators) fall into the bore, no external intervention is required to close the bullet holes.

Claims

Patentansprüche claims
Perforationskanone mit einem äußeren Kanonenrohr, in dessen Innerem koaxial ein inneres Rohr angeordnet ist, welches Perforatoren trägt, die über eine durch das Kanonenrohr führende Sprengschnur zündbar sind und nach Zündung das Kanonenrohr zur Bildung von Durchschusslöchern durchschlagen, wobei Mittel zum selbsttätigen Verschließen der Durchschusslöcher nach dem Schuss vorgesehen sind und dieses Mittel ein quellfähiges Medium ist, dadurch gekennzeichnet, dass das quellfähige Medium flächenförmig im Inneren der Perforationskanone angeordnet ist. Perforating gun with an outer gun barrel inside which is coaxially disposed an inner tube carrying perforators which are ignitable via a detonating cord through the cannon barrel and penetrate the cannon barrel after ignition to form bullet holes, means for automatically closing the piercing holes after the gun Shot are provided and this agent is a swellable medium, characterized in that the swellable medium is arranged in a planar manner in the interior of the perforation gun.
Perforationskanone nach Anspruch 1 , dadurch gekennzeichnet, dass das quellfähige Medium als Beschichtung in der Perforationskanone angeordnet ist. Perforating gun according to claim 1, characterized in that the swellable medium is arranged as a coating in the perforation gun.
Perforationskanone nach Anspruch 2, dadurch gekennzeichnet, dass die Beschichtung auf dem Inneren des Kanonenrohrs angeordnet ist. Perforating gun according to claim 2, characterized in that the coating is arranged on the interior of the gun barrel.
Perforationskanone nach Anspruch 2, dadurch gekennzeichnet, dass die Beschichtung auf ein zusätzliches dünnwandiges Rohr aufgebracht ist, welches sich koaxial zwischen dem äußeren Kanonenrohr und dem inneren Rohr befindet. Perforating gun according to claim 2, characterized in that the coating is applied to an additional thin-walled tube, which is located coaxially between the outer gun tube and the inner tube.
Perforationskanone nach Anspruch 1 , dadurch gekennzeichnet, dass das quellfähige Medium als festes Material, zum Beispiel von der Rolle kommend, auf das Kanonenrohr oder ein zusätzliches dünnwandiges Rohr, welches sich koaxial zwischen dem Kanonenrohr und dem inneren Rohr befindet, durch Umwickeln aufgebracht ist. Perforating gun according to claim 1, characterized in that the swellable medium is applied as a solid material, for example coming from the roll, to the gun barrel or an additional thin-walled tube which is coaxial between the gun barrel and the inner tube, by wrapping.
6. Perforationskanone nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das quellfähige Medium als festes Material zum Beispiel als Ronde, auf das Kanonenrohr und/oder ein zusätzliches dünnwandiges Rohr, welches sich koaxial zwischen dem Kanonenrohr und dem inneren Rohr befindet, ausschließlich im Bereich der Durchschusslöcher aufgebracht ist. 6. Perforating gun according to one of the preceding claims, characterized in that the swellable medium as a solid material, for example as Ronde, on the gun barrel and / or an additional thin-walled tube, which is coaxial between the gun barrel and the inner tube, exclusively in the area the bullet holes is applied.
7. Perforationskanone nach Anspruch 1 , dadurch gekennzeichnet, dass das quellfähige Medium selbst ein Rohr oder Schlauch ist, welches/er sich koaxial zwischen dem äußeren Kanonenrohr und dem inneren Rohr befindet. 7. perforating gun according to claim 1, characterized in that the swellable medium itself is a tube or hose which / coaxially located between the outer gun barrel and the inner tube.
8. Perforationskanone nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das quellfähige Medium durch die Zündung der Perforatoren, durch Kontakt mit dem Bohrlochmedium wie Öl, Gas, Wasser, bei Tieflochbohrungen verwendete Spülflüssigkeiten oder durch andere bohrlochbedingte Einflüsse aktiviert wird, aufquillt und dadurch die Durchschusslöcher verschließt. 8. Perforating gun according to one of the preceding claims, characterized in that the swellable medium is activated by the ignition of the perforators, by contact with the wellbore medium such as oil, gas, water, used in deep well drilling fluids or other borehole-related influences, swells and thus the Closes bullet holes.
9. Verwendung eines quellfähigen flächenförmigen Mediums im Inneren einer Perforationskanone mit einem äußeren Kanonenrohr, in dessen Innerem koaxial ein inneres Rohr angeordnet ist, welches Perforatoren trägt, die über eine durch das Kanonenrohr führende Sprengschnur zündbar sind und nach Zündung das Kanonenrohr zur Bildung von Durchschusslöchern durchschlagen, wobei das quellfähige Medium durch die Zündung der Perforatoren, durch Kontakt mit dem Bohrlochmedium wie Öl, Gas, Wasser, bei Tieflochbohrungen verwendete Spülflüssigkeiten oder durch andere bohrlochbedingte Einflüsse aktiviert wird, aufquillt und dadurch die Durchschusslöcher verschließt. 9. Use of a swellable sheet-like medium in the interior of a perforation gun with an outer cannon tube, inside which an inner tube is coaxially arranged, which carries perforators, which are ignitable via a cannon tube leading detonating cord and strike the cannon tube to form bullet holes after ignition wherein the swellable medium is activated by the firing of the perforators, by contact with the wellbore medium such as oil, gas, water, flushing fluids used in downhole drilling, or other borehole-related influences, swells and thereby closes the bullet holes.
10. Verwendung nach Anspruch 9, dadurch gekennzeichnet, dass das quellfähige Medium als Beschichtung in der Perforationskanone angeordnet ist. 10. Use according to claim 9, characterized in that the swellable medium is arranged as a coating in the perforation gun.
11. Verwendung nach Anspruch 9, dadurch gekennzeichnet, dass das quellfähige Medium als festes Material durch Umwickeln aufgebracht ist. 11. Use according to claim 9, characterized in that the swellable medium is applied as a solid material by wrapping.
12. Verwendung nach Anspruch 9, dadurch gekennzeichnet, dass das quellfähige Medium selbst ein Rohr oder Schlauch ist, welches/er sich koaxial zwischen dem äußeren Kanonenrohr und dem inneren Rohr befindet. 12. Use according to claim 9, characterized in that the swellable medium itself is a tube or hose which / coaxially located between the outer gun barrel and the inner tube.
EP10790718A 2009-10-13 2010-10-12 Perforating gun having self-closing penetration holes Withdrawn EP2488720A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009049290 2009-10-13
PCT/EP2010/006212 WO2011045021A2 (en) 2009-10-13 2010-10-12 Perforating gun having self-closing penetration holes

Publications (1)

Publication Number Publication Date
EP2488720A2 true EP2488720A2 (en) 2012-08-22

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US (1) US20120198988A1 (en)
EP (1) EP2488720A2 (en)
AR (1) AR078618A1 (en)
CA (1) CA2777427A1 (en)
DE (1) DE102010048044A1 (en)
WO (1) WO2011045021A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8356666B2 (en) * 2010-01-19 2013-01-22 Halliburton Energy Services, Inc Wellbore perforation tool
BR112016029473A2 (en) 2014-07-22 2017-08-22 Halliburton Energy Services Inc cannoning device and method for making a cannoning device
WO2019103780A1 (en) * 2017-11-22 2019-05-31 Exxonmobil Upstream Research Company Perforation devices including gas supply structures and methods of utilizing the same

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US3305032A (en) * 1964-06-11 1967-02-21 Schlumberger Technology Corp Well completion apparatus
US4756371A (en) * 1986-12-15 1988-07-12 Brieger Emmet F Perforation apparatus and method
DE502004005228D1 (en) 2003-09-27 2007-11-22 Dynaenergetics Gmbh & Co Kg PERFORATIVE CANNON SYSTEM WITH SELF-CLOSING PUNCH HOLES
US7430965B2 (en) * 2004-10-08 2008-10-07 Halliburton Energy Services, Inc. Debris retention perforating apparatus and method for use of same
EP2069606A4 (en) * 2006-09-12 2015-08-26 Halliburton Energy Services Inc Method and apparatus for perforating and isolating perforations in a wellbore
US20090139708A1 (en) * 2007-06-06 2009-06-04 Baker Hughes Incorporated Wrap-On Reactive Element Barrier Packer and Method of Creating Same
US8356666B2 (en) * 2010-01-19 2013-01-22 Halliburton Energy Services, Inc Wellbore perforation tool

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Title
See references of WO2011045021A2 *

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Publication number Publication date
AR078618A1 (en) 2011-11-23
WO2011045021A3 (en) 2011-11-24
CA2777427A1 (en) 2011-04-21
US20120198988A1 (en) 2012-08-09
DE102010048044A1 (en) 2011-04-14
WO2011045021A2 (en) 2011-04-21

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