EP1685308B1 - Systeme de canon de perforation produisant des trous de perforation a obturation automatique - Google Patents

Systeme de canon de perforation produisant des trous de perforation a obturation automatique Download PDF

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Publication number
EP1685308B1
EP1685308B1 EP04765481A EP04765481A EP1685308B1 EP 1685308 B1 EP1685308 B1 EP 1685308B1 EP 04765481 A EP04765481 A EP 04765481A EP 04765481 A EP04765481 A EP 04765481A EP 1685308 B1 EP1685308 B1 EP 1685308B1
Authority
EP
European Patent Office
Prior art keywords
gun barrel
sliding tube
perforation
gun
perforators
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
EP04765481A
Other languages
German (de)
English (en)
Other versions
EP1685308A1 (fr
Inventor
Rolf Rospek
Malte Veehmayer
Wilfried KRAUTHÄUSER
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
Priority claimed from DE102004043948A external-priority patent/DE102004043948A1/de
Application filed by DynaEnergetics GmbH and Co KG filed Critical DynaEnergetics GmbH and Co KG
Publication of EP1685308A1 publication Critical patent/EP1685308A1/fr
Application granted granted Critical
Publication of EP1685308B1 publication Critical patent/EP1685308B1/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
    • 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 perforation gun according to the preambles of claims 1 and 3.
  • Perforation guns are used in deep hole blasting in the oil and gas industry to connect the well to the storage horizon.
  • a perforation gun consists of an outer cannon tube in the interior of perforators - usually hollow or Gechossladungen - are arranged, which shoot when ignited radially outward through the gun barrel. In the gun barrel remain bullet holes after the shot.
  • a detonating cord leads through the gun barrel, which causes the perforators to ignite when ignited.
  • the invention is based on the object to improve a perforation gun according to the preamble of claim 1 so that with simple and safe Means escape of fragments from the gun barrel is avoided in the bore.
  • this object is achieved in a first embodiment in that the means for automatically closing comprise cartridges with a swellable 2-component foam and these cartridges are arranged in the gun barrel and are breakable by the ignited detonating cord, whereby foam escapes from the cartridges, swells and the bullet holes clogged.
  • a cartridge is arranged adjacent to a perforator.
  • the sliding tube is fixed in its initial position via a securing element which breaks open after ignition of the detonating cord and releases the displacement of the sliding tube.
  • the adjusting device may be a tensioned spring or a pyrotechnic element which can be ignited by the detonating cord.
  • the sliding tube is closed on the side in which it is to move, and is open on the other side, whereby the sliding tube is formed like a piston, which is displaceable by the pressure building up by the ignition of the perforators.
  • a fluid is arranged between the sliding tube and the gun barrel. With this fluid, the timing of the radial expansion of the sliding tube can be controlled.
  • FIG. 1 shows a gun barrel 1 of a perforating gun for use in the petroleum and natural gas industry for connecting a well to the storage horizon.
  • the gun barrel 1 is closed at its two ends by a respective connector or termination 18.
  • a sliding tube 4 and therein a charge carrier 9 is arranged, are attached to the perforators 10.
  • these perforators are 10 shaped charges.
  • a detonating cord 11 is guided to the respective ignition points of the perforators 10.
  • the detonating cord 11 is guided by the connectors or terminations 18 in the interior of the perforation gun.
  • the inner tube or the sliding tube 4 is z at one end. B. closed by a cap 5. Adjacent to the cap 5 is a securing element 7, here a shear pin, which fixes the sliding tube 4 before the shot in such a way that the sliding tube 4 can not move in the gun barrel 1 in the longitudinal direction.
  • a securing element 7, here a shear pin Adjacent to the cap 5 is a securing element 7, here a shear pin, which fixes the sliding tube 4 before the shot in such a way that the sliding tube 4 can not move in the gun barrel 1 in the longitudinal direction.
  • predetermined breaking points 3 can be introduced so that after the ignition of the perforators 10, the forming hollow charge jet 12 (see FIG. 2) can penetrate the gun barrel 1 unhindered.
  • Fig. 2 shows a section of the perforation gun immediately after ignition.
  • the detonating cord 11 has ignited the perforators 10.
  • the forming hollow charge jet or shaped charge jet 12 has penetrated the sliding tube 4 and the gun barrel 1.
  • the metal housing of the perforators 10 disassemble and form fragments and fragments that form part of the "debris".
  • Figure 3 shows a section of the perforation gun immediately after the shot.
  • the shaped charge jet 12 has penetrated the sliding tube 4 at the bullet hole 14 and the gun barrel 1 at the bullet hole 13.
  • a pressure has built up. This pressure acts on the sliding tube 4 in the direction of the securing element 7, since the sliding tube 4 is closed on the side of the securing element 5 by a cap 5 and is open on the opposite side.
  • "debris" 17 has formed.
  • Figure 4 shows a section of the perforation gun after the shot. Due to the pressure in the sliding tube 4, the securing element 7 has been sheared off, as a result of which the sliding tube 4 has displaced as far as the adjacent connector or termination 18. As a result, the remaining small parts or the debris 17 can not leave the gun barrel 1. Not shown is that Inner tube 4 inflated after the shot and thus has wedged with the gun barrel 1.
  • the invention thus consists of a mechanism which closes the perforation holes or through holes 13 in the gun wall 2 after the shot and thus prevents the "debris" 17 from escaping.
  • Foam cartridges or, as described, a pusher or rotation mechanism may serve as the closure mechanism.
  • some perforators 10 are replaced by 2-component foam cartridges. Through the detonating cord 11 which ignites the perforators or charges 10, the cartridge is brought to the implementation, the foam swells up and clogs the bullet holes thirteenth
  • a second tube, a pusher tube 4 is used in the gun, which is slid after passage through at least the diameter of the bullet hole 13 (either longitudinally, slide mechanism or transversely, rotation mechanism).
  • the displacement is indicated by an X (see reference numeral 8).
  • the sliding tube 4 is fixed in the starting position via a securing element 7, the z. B. is destroyed by the detonating cord 11. As a fuse element 7 z. As bolts, circlips or screws serve. The destruction can z. B. also via a pyrotechnic element - possibly with delay set - done.
  • the internal pressure in the gun after the shot may also be caused by the reaction products of the explosives in the perforators 10. If the sliding tube 4 is closed on the side to which it is to move and kept open on the other side, this sliding tube 4 can move like a piston. The internal pressure can relieve itself only through the perforation holes 14 and the passages 6 for the detonating cord 11. The time until complete pressure reduction is sufficient to move the sliding tube 4 and thus to close the bullet holes 13, 14. At the same time, the gas pressure inflates the pusher tube 4 (also known as conventional guns under the term "gun swell"). The expanding sliding tube 4 can become wedged with the inner wall of the outer tube or cannon tube 1 and thus can not slip back. The time of this expansion can z. B. be controlled by a fluid between the inner and outer walls. For this purpose, z. As fat or silicone oil can be used.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Toys (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Punching Or Piercing (AREA)

Claims (9)

  1. Canon de perforation comportant un tube de canon extérieur (1) à l'intérieur duquel sont disposés des perforateurs (10) qui peuvent être mis à feu au moyen d'un cordon détonateur (11) passant à l'intérieur du tube de canon (1) et après mise à feu traversent le tube de canon (1) au niveau de trous de tir (13), des moyens pour obturer automatiquement les trous de tir (13) étant prévus, caractérisé par le fait que les moyens pour obturer automatiquement les trous de tir (13) comprennent des cartouches avec une mousse à deux composants susceptible de gonfler, que lesdites cartouches sont disposées dans le tube de canon (1) et peuvent être ouvertes par le cordon détonateur (11) mis à feu, la mousse s'échappant alors des cartouches, gonflant et obstruant les trous de tir (13).
  2. Canon de perforation selon la revendication 1, caractérisé par le fait que chaque fois une cartouche est disposée dans le voisinage d'un perforateur (10).
  3. Canon de perforation comportant un tube de canon extérieur (1) à l'intérieur duquel sont disposés des perforateurs (10) qui peuvent être mis à feu au moyen d'un cordon détonateur (11) passant à l'intérieur du tube de canon (1) et après mise à feu traversent le tube de canon (1) au niveau de trous de tir (13), des moyens pour obturer automatiquement les trous de tir (13) étant prévus et lesdits moyens pour obturer automatiquement les trous de tir (13) comprenant un tube coulissant (4) qui après le tir peut être déplacé d'au moins la valeur du diamètre des trous de tir (13), caractérisé par le fait que le tube coulissant (4) est disposé coaxialement entre les cartouches (10) et le tube de canon (1).
  4. Canon de perforation selon la revendication 3, caractérisé par le fait que le tube coulissant (4) dans sa position d'origine est tenu par un élément de sécurité (7) qui après mise feu du cordon détonateur (11) se rompt et autorise le déplacement du tube coulissant (4).
  5. Canon de perforation selon la revendication 3 ou 4, caractérisé par le fait que le dispositif de déplacement est un ressort tendu.
  6. Canon de perforation selon une des revendications 3 à 5, caractérisé par le fait que le dispositif de déplacement est un élément pyrotechnique mis à feu par le cordon détonateur (11)
  7. Canon de perforation selon une des revendications 3 à 6, caractérisé par le fait que le tube coulissant (4) du côté où il doit coulisser est fermé et est ouvert de l'autre côté et de ce fait peut se déplacer à la manière d'un piston sous l'action de la pression engendrée par la mise à feu des perforateurs (10).
  8. Canon de perforation selon une des revendications 3 à 7, caractérisé par le fait que le tube coulissant (4) présente une épaisseur de paroi qui permet une expansion radiale et par suite son blocage dans le tube de canon (1) après le déplacement du tube coulissant (4) sous l'action de la pression qui s'établit dans le tube de canon (1) après la mise à feu des perforateurs (10).
  9. Canon de perforation selon une des revendications 3 à 8, caractérisé par le fait qu'un fluide est placé entre le tube coulissant (4) et le tube de canon (1).
EP04765481A 2003-09-27 2004-09-22 Systeme de canon de perforation produisant des trous de perforation a obturation automatique Expired - Lifetime EP1685308B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10344958 2003-09-27
DE102004004750 2004-01-30
DE102004011616 2004-03-10
DE102004043948A DE102004043948A1 (de) 2003-09-27 2004-09-11 Perforationskanonensystem mit selbstverschließenden Durchschusslöchern
PCT/EP2004/010609 WO2005033472A1 (fr) 2003-09-27 2004-09-22 Systeme de canon de perforation produisant des trous de perforation a obturation automatique

Publications (2)

Publication Number Publication Date
EP1685308A1 EP1685308A1 (fr) 2006-08-02
EP1685308B1 true EP1685308B1 (fr) 2007-10-10

Family

ID=34426956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765481A Expired - Lifetime EP1685308B1 (fr) 2003-09-27 2004-09-22 Systeme de canon de perforation produisant des trous de perforation a obturation automatique

Country Status (7)

Country Link
US (1) US7607379B2 (fr)
EP (1) EP1685308B1 (fr)
AT (1) ATE375435T1 (fr)
CA (1) CA2539244C (fr)
DE (1) DE502004005228D1 (fr)
NO (1) NO336706B1 (fr)
WO (1) WO2005033472A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010048044A1 (de) 2009-10-13 2011-04-14 Dynaenergetics Gmbh & Co. Kg Perforationskanonensystem mit selbstverschließenden Durchschusslöchern

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7441601B2 (en) * 2005-05-16 2008-10-28 Geodynamics, Inc. Perforation gun with integral debris trap apparatus and method of use
US7942098B2 (en) * 2006-08-29 2011-05-17 Schlumberger Technology Corporation Loading tube for shaped charges
US7762351B2 (en) * 2008-10-13 2010-07-27 Vidal Maribel Exposed hollow carrier perforation gun and charge holder
US8356666B2 (en) * 2010-01-19 2013-01-22 Halliburton Energy Services, Inc Wellbore perforation tool
CN102031952B (zh) * 2010-11-26 2013-12-25 中国航天科技集团公司川南机械厂 多级射孔增压方法
WO2014003699A2 (fr) * 2012-04-03 2014-01-03 Halliburton Energy Services, Inc. Atténuateur de choc destiné à un système de canon
WO2014084815A1 (fr) * 2012-11-27 2014-06-05 Halliburton Energy Services, Inc. Ensemble de confinement de débris de canon de perforation et son procédé d'utilisation
NO20171107A1 (en) * 2017-07-05 2018-12-27 Tco As Gun for oriented perforation
US11078762B2 (en) 2019-03-05 2021-08-03 Swm International, Llc Downhole perforating gun tube and components
US10689955B1 (en) 2019-03-05 2020-06-23 SWM International Inc. Intelligent downhole perforating gun tube and components
US11268376B1 (en) 2019-03-27 2022-03-08 Acuity Technical Designs, LLC Downhole safety switch and communication protocol
WO2021122797A1 (fr) 2019-12-17 2021-06-24 DynaEnergetics Europe GmbH Système de perforateur modulaire
US11619119B1 (en) 2020-04-10 2023-04-04 Integrated Solutions, Inc. Downhole gun tube extension
US12000267B2 (en) 2021-09-24 2024-06-04 DynaEnergetics Europe GmbH Communication and location system for an autonomous frack system

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Publication number Priority date Publication date Assignee Title
US2142572A (en) * 1935-04-13 1939-01-03 Lane Wells Co Perforating gun
US2252270A (en) * 1938-11-05 1941-08-12 American Oil Tool Company Perforating device
US2462784A (en) * 1941-11-17 1949-02-22 Lane Wells Co Well perforating gun
US2765739A (en) * 1951-01-26 1956-10-09 Welex Jet Services Inc Jet carrier sealing plug
US3361204A (en) * 1965-06-25 1968-01-02 Pan American Petroleum Corp Method and apparatus for treating an underground formation
US3366179A (en) * 1965-08-18 1968-01-30 John C Kinley Well tool having safety means to prevent premature firing
GB2128719B (en) * 1982-10-20 1986-11-26 Vann Inc Geo Gravity oriented perforating gun for use in slanted boreholes
US6220370B1 (en) 1999-02-18 2001-04-24 Owen Oil Tools, Inc. Circulating gun system
CA2271620C (fr) * 1999-05-14 2007-10-23 Baker Hughes (Canada) Ltd. Collecteur magnetique de debris pour fond de trou
US6679327B2 (en) * 2001-11-30 2004-01-20 Baker Hughes, Inc. Internal oriented perforating system and method
US7441601B2 (en) * 2005-05-16 2008-10-28 Geodynamics, Inc. Perforation gun with integral debris trap apparatus and method of use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010048044A1 (de) 2009-10-13 2011-04-14 Dynaenergetics Gmbh & Co. Kg Perforationskanonensystem mit selbstverschließenden Durchschusslöchern
WO2011045021A2 (fr) 2009-10-13 2011-04-21 Dynaenergetics Gmbh & Co. Kg Canon de perforation à trous de tir se refermant automatiquement

Also Published As

Publication number Publication date
EP1685308A1 (fr) 2006-08-02
DE502004005228D1 (de) 2007-11-22
CA2539244A1 (fr) 2005-04-14
WO2005033472A1 (fr) 2005-04-14
CA2539244C (fr) 2012-02-21
US7607379B2 (en) 2009-10-27
NO336706B1 (no) 2015-10-26
ATE375435T1 (de) 2007-10-15
NO20061842L (no) 2006-06-16
US20070107589A1 (en) 2007-05-17

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