WO2011107082A1 - Dispositif et procédé de production d'impulsions haute pression - Google Patents

Dispositif et procédé de production d'impulsions haute pression Download PDF

Info

Publication number
WO2011107082A1
WO2011107082A1 PCT/DE2011/000219 DE2011000219W WO2011107082A1 WO 2011107082 A1 WO2011107082 A1 WO 2011107082A1 DE 2011000219 W DE2011000219 W DE 2011000219W WO 2011107082 A1 WO2011107082 A1 WO 2011107082A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
outlet opening
pressure chamber
valve unit
switching position
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.)
Ceased
Application number
PCT/DE2011/000219
Other languages
German (de)
English (en)
Inventor
Uwe Schmitz-Habben
Carsten Weiss
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.)
TEFTOREC GmbH
Uraca Pumpenfabrik GmbH and Co KG
Original Assignee
TEFTOREC GmbH
Uraca Pumpenfabrik 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 TEFTOREC GmbH, Uraca Pumpenfabrik GmbH and Co KG filed Critical TEFTOREC GmbH
Priority to EP11718905.0A priority Critical patent/EP2580422B1/fr
Priority to DK11718905.0T priority patent/DK2580422T3/en
Publication of WO2011107082A1 publication Critical patent/WO2011107082A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/08—Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, e.g. casing perforations, or gravel packs
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
    • E03B3/08—Obtaining and confining water by means of wells
    • E03B3/15—Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole

Definitions

  • the invention relates to a method for generating high-pressure pulses and to a device suitable for this purpose according to the preamble of claim 7 or claim 19.
  • the regeneration of wells includes all measures that are used to remove mineral and / or organic deposits from the well annulus and the adjacent mountains during a well operating period.
  • the methods used for this purpose follow the principle of separation or detachment of deposits and buildup of the filter material and the supporting grain skeleton of the adjacent mountains and the discharge of these particles through the well filter.
  • various methods and devices are known which make use of hydromechanical, hydropneumatic or chemical principles of action.
  • Hydromechanical well regeneration processes will release hydraulic or pneumatic energy pulses, which will be properly introduced into wells.
  • pulse generators are suitable, which are introduced into a well.
  • CONFIRMATION COPY or the filter pebble have settled, thereby to regenerate the well.
  • EP 1 805 092 A1 discloses a pulse generator with which hydraulic or pneumatic energy or high-pressure pulses can be generated, thereby regenerating a well or a production well.
  • a compressible medium is passed under pressure into a working pressure chamber.
  • the working pressure chamber has on one side an opening which can be closed by a valve head, which is part of a valve unit.
  • This valve unit further consists of a valve rod, at one end of the valve head and at the opposite other end a plate in the form of a valve rod end are formed.
  • the valve rod end serves as a piston which is slidably disposed within a biasing pressure chamber.
  • the valve unit is translationally movable in the direction of a longitudinal axis of the valve rod.
  • the valve head closes the opening of the working pressure chamber.
  • the biasing pressure chamber is filled with a compressible medium, wherein the valve rod end and thus also the valve head are biased in the just mentioned first switching position.
  • the valve head is moved away from the working pressure chamber, thereby releasing the opening to the environment and discharging the medium previously accumulated in the working pressure chamber to the environment within a short time to generate an energy pulse.
  • the pulse generator according to EP 1 895 092 A1 has the disadvantage that its valve unit requires a large installation space and is possibly subject to leakage problems.
  • DE 108 43 292 C2 shows a device for regenerating and cleaning wells, in which pulses are released by a sudden release of a compressed gas or a pressurized liquid in the water of the well or in the liquid of the production well.
  • a pressure chamber is filled with a medium under pressure, said pressure chamber can be closed by a translationally displaceable piston.
  • Plastic or a rubber-like material in contact and biased against it. If the pressure within the pressure chamber increases, the piston is moved against the plastic or the rubber-like material and thereby displaced within a housing. In this displacement lateral openings of the housing are released, so that the medium can escape from the pressure chamber to the environment.
  • This device is subject to the disadvantage that due to the inertia of the plastic and thus of the piston, the opening and closing action of the device is not fast enough to produce a high frequency energy pulse. Furthermore, this device is not adjustable with respect to the intensity of the energy pulse.
  • US 5,836,393 and US 6,250,388 B1 each show an apparatus for generating high pressure pneumatic pulses.
  • compressed air is introduced into a pressure chamber, which is closed by a piston of a displaceable valve unit in a first switching position.
  • the valve unit is in fluid communication with a counter-pressure chamber and is thereby biased in the first switching position in the direction of the pressure chamber, so that the piston keeps the pressure chamber closed in the first switching position. Only when the pressure within the pressure chamber exceeds that within the back pressure chamber, the valve inlet translational moved so that the piston opens the pressure chamber and thereby the compressed air is discharged from the pressure chamber in a short time to produce a pneumatic high-pressure pulse.
  • the invention has for its object to provide an apparatus and a method for generating in particular hydraulic high-pressure pulses, which only a small footprint is claimed and an adjustability speed of the generated high-pressure pulses in terms of frequency and intensity is possible by simple means, at the same time robust construction.
  • a device by means of which in particular hydraulic high-pressure pulses are generated, comprises in a first embodiment a housing with a pressure chamber which can be filled with a fluid under pressure via a high-pressure feed line, wherein the housing has at least one outlet opening which is separated from the pressure chamber leads to the environment. Furthermore, the device comprises a valve unit, which can be moved in response to a pressure within the pressure chamber between a first switching position and a second switching position. In the first embodiment
  • the device comprises a valve unit, which is arranged completely within the pressure chamber.
  • the invention is based on the finding that an arrangement of the valve unit completely within the pressure chamber makes both a more compact design for the device and a robust construction possible.
  • the complete integration of the valve unit within the pressure chamber keeps the dimensions of the device compact and protects the valve unit from disturbing influences from outside or from the environment. This has an advantageous effect on the reliability of the device and its life.
  • the valve unit has a translationally displaceable closure head, which is biased by a spring against the outlet opening.
  • the closure head closes the outlet opening, wherein in the second switching position of the valve unit it is lifted off the outlet opening and releases it.
  • the closure head has a comparatively low mass and thus a low inertia, so that it can be moved quickly and with a high frequency between see the first and second switching position of the valve unit. This allows a high frequency with respect to high-pressure pulses, in particular high-pressure hydraulic pulses.
  • the bias of the closure head against the outlet opening by means of a spring is mechanically simple and robust, resulting in a high reliability and a long life.
  • the closure head may have a differential surface which is substantially orthogonal to a longitudinal axis of the closure head.
  • the fluid contained in the pressure chamber is in contact with this differential surface and thereupon exerts a force on the sealing head in the direction of its longitudinal axis.
  • a defined force is exerted on the closure head when a predetermined pressure within the pressure chamber is exceeded, which force is greater than the biasing force of the spring and counteracts this.
  • the lifted head from the outlet and transferred to its second switching position.
  • the interaction between the biasing force of the spring and the defined force acting on said differential surface and pushing the closure head away from the outlet opening at a predetermined pressure within the pressure chamber advantageously results in controlled opening and closing of the high frequency outlet opening such that as a result of which high-pressure pulse are released to the environment.
  • the above-mentioned differential area is formed in a preferred embodiment on the closure head by a first region having a first diameter and a second region having a second diameter, wherein the second diameter is greater than the first diameter.
  • the area with the first diameter is in this case formed adjacent to the outlet opening, wherein the second area is formed on the closure head on a side facing away from the outlet opening.
  • the fluid in the pressure chamber wets the closure head between its first and second regions. This ensures that a force which acts on the differential surface by means of the fluid in the pressure chamber, always acts in a direction away from the outlet opening and thus counteracts the Federvorspan-.
  • the device may comprise an adjusting device by means of which a bias of the spring is adjustable.
  • the size of the spring preload interacts with the pressure within the pressure chamber, the switching point, from which the closure head is lifted from the outlet opening and transferred to its second switching position.
  • a valve housing which is in contact with the spring, are translationally displaced in the direction of a longitudinal axis of the spring by the adjusting device, thereby increasing or decreasing the bias of the spring.
  • the biasing force of the spring pushes the closure head against a sealing surface of the outlet opening and thus closes the outlet channel, which leads to the environment.
  • the pressure is advantageously set, from which the closure head lifts off from the outlet opening or at which the pulse generator triggers.
  • a simple operability of the adjusting device can be achieved in that it can be actuated from outside the housing, for example, by the fact that the adjusting device is designed in the form of an adjusting nut enclosed in the wall of the housing. Thus one can be ahead of one
  • the valve housing is moved relative to the spring by adjusting the adjusting nut or a translational displacement in the direction of the longitudinal axis of the spring, thereby changing the bias of the spring.
  • the adjusting nut may be provided in an end plate of the housing opposite to the outlet opening, wherein a foot portion of the spring is held by the adjusting nut. Turning the adjusting nut leads to a displacement of the foot portion of the spring relative to the valve housing, thereby changing the bias of the spring.
  • the outlet opening open into an outlet channel having an opening to the environment.
  • the fluid which is discharged through the opened outlet opening to the surroundings is channeled or bundled in one direction, so that the discharge to the surroundings takes place in the form of a directed fluid jet.
  • Said channeling of the fluid is particularly advantageous when water is used as the fluid because it causes a directional jet of water to be released to the environment.
  • Alignment of the fluid discharged to the environment may be further enhanced by a nozzle in fluid communication with the outlet port.
  • the nozzle may be arranged in the opening of the outlet channel.
  • a back pressure is caused in the pressure chamber through the nozzle in the second switching position of the valve unit when fluid exits under pressure to the environment. This back pressure acts on the closure head in a direction away from the outlet opening.
  • the closure head is moved away from the outlet opening sufficiently far, so that a sufficient amount of fluid is discharged through the outlet opening to the surroundings.
  • An alternative embodiment of the device according to the invention comprises a housing with a pressure chamber which can be filled with a fluid under pressure via a high-pressure feed line, wherein the housing has at least one outlet opening which leads from the pressure chamber to the environment. Furthermore, the device comprises a valve unit which can be moved in response to a pressure within the pressure chamber between a first switching position and a second switching position. In the first switching position, the valve unit closes the outlet opening, the valve unit opening the outlet opening in its second switching position.
  • valve unit In the second switching position of the valve unit, at least a portion of the fluid from the pressure chamber is discharged under pressure to the environment through the open outlet opening, thereby producing a high-pressure hydraulic pulse.
  • the valve unit has a translationally displaceable closure head, which is biased by a spring against the outlet opening, wherein the closure head in the first switching position of the valve unit the Closes outlet and in the second switching position of the valve unit is lifted from the outlet opening.
  • the abovementioned alternative embodiment of the device according to the invention is characterized in that the bias of the closure head against the outlet opening by means of a spring, i. achieved with simple and robust means. This is advantageous for high reliability and a long service life. Furthermore, a pressure point at which the valve unit opens as a function of an internal pressure prevailing in the pressure chamber can be set by simple means by the
  • Bias of the spring is changed. This allows the frequency and intensity of the high pressure pulses to be adjusted.
  • the invention further provides a method for generating high pressure pulses, comprising the steps of:
  • opening and closing of the outlet opening according to steps (ii) and (iii) takes place at a frequency which is filled by a height of the pressure with which the pressure chamber is filled with the fluid, and / or by a bias Spring, with which the closure head is biased against the outlet opening depends.
  • a change in the frequency of the opening and closing of the outlet opening and also a change in the intensity of the hydraulic high pressure pulses generated can be conveniently achieved by changing the bias of the spring, with which the closure head is biased against the outlet opening.
  • Such a change in the spring preload can be achieved by an adjusting device, which can be actuated from outside the pressure chamber or its housing.
  • the outlet opening when fluid exits under pressure to the environment, a dynamic pressure is generated in the pressure chamber, which acts on the closure head in a direction away from the outlet opening.
  • a dynamic pressure is generated in the pressure chamber, which acts on the closure head in a direction away from the outlet opening.
  • the closure head in the second switching position of the valve unit, the closure head is raised sufficiently far from the outlet opening in order to discharge a sufficiently large amount of fluid to the environment.
  • the said back pressure can be caused by a nozzle, which is in fluid communication with the outlet opening. A flow cross-section of this nozzle is selected such that the outlet opening is throttled in the second switching position of the valve unit, which causes the back pressure in the pressure chamber adjacent to the outlet opening.
  • the fluid with which the main memory is filled under pressure is one liquid medium, preferably water.
  • the mechanical components that are used in carrying out the method according to the invention are suitably designed so that a high frequency for the opening and closing of the outlet opening or a sufficiently fast reciprocating movement of the closure head is ensured even with the medium of water , Accordingly, this leads to an advantageously high frequency of the discharged to the environment hydraulic high-pressure pulse.
  • FIG. 1 shows a perspective view of a device according to the invention
  • Figure 2 is a longitudinal section through the device of Figure 1, wherein a
  • Valve unit of the device assumes a first switching position
  • Figure 3 shows an area I of Figure 2 in an enlarged view
  • Figure 4 is a longitudinal section through the device of Figure 1, wherein a
  • Valve unit of this device occupies a second switching position, while an outlet opening of a pressure chamber to the environment is open.
  • the device 1 is shown in Figure 1 in a perspective view.
  • the device 1 is a device in the form of a pulse generator in which energy is stored by means of a working fluid, preferably water, over a certain period of time. If an adjustable limit is reached with respect to the pressure of the working fluid within the pulse generator, a valve mechanism is provided to convert that potential energy into kinetic energy by repeatedly delivering the working fluid to the vicinity of the pulse generator over a short period of time.
  • the filling of the pulse generator 1 with the working fluid by means of a (not shown) high-pressure pump. With such a high pressure pump, a pressure chamber formed within the pulse generator 1 is pressurized by a constant volume flow of the fluid.
  • the device 1 hereinafter also referred to as a pulse generator, comprises a jacket-shaped housing 2 which is closed by an upper end plate 3 and by a lower end plate 4.
  • the upper end plate 3 and the lower end plate 4 are screwed together by a plurality of bolts 5 and thereby clamp the shell-shaped housing 2 between them.
  • a fastening eye 6 is provided on the upper end plate 3, to which a rope, a chain or the like can be attached.
  • a connection sleeve 7 is provided on the upper end plate 3, to which a hydraulic line or the like can be connected.
  • the connection sleeve 7 leads to a pressure chamber provided within the pulse generator 1.
  • the inner structure of the pulse generator 1 is explained in detail below with reference to FIG. 2, which shows a longitudinal section of the illustration of FIG.
  • the jacket-shaped housing 2 encloses the pressure chamber 8, wherein the
  • Connecting sleeve 7 is in fluid communication with the pressure chamber 8.
  • the reference numeral 9 shows a simplified line, which is connected to the connection sleeve 7.
  • the line 9 may be connected to a (not shown) high-pressure pump, by means of a working fluid, preferably water, is continuously conveyed into the pressure chamber 8 in.
  • a working fluid preferably water
  • the pressure chamber 8 is continuously filled with a fluid under pressure by the high-pressure pump.
  • Water is particularly suitable as the fluid, the fluid always being referred to as water in the following description, but without being understood as a limitation to water.
  • the fluid may also be other aqueous solutions or a gas.
  • an outlet opening 10 is formed, which leads from the pressure chamber 8 to the environment.
  • the outlet opening 10 merges into an outlet channel 11 which has an opening 12 towards the surroundings.
  • a nozzle 13 is arranged, whose function will be explained in detail below.
  • valve unit 14 Disposed within the pressure chamber 8 is a valve unit 14 comprising a valve housing 15, a guide bushing 16 mounted within the valve housing 15, and a closure head 17 disposed within the guide bushing
  • valve 16 is taken longitudinally displaceable. Within the valve housing 15, a spring 18 is received, which via a plunger 19 with the closure head
  • the spring 18 biases the closure head 17 in the direction of the outlet opening 10.
  • An end of the spring 18 opposite the closure head 17 is fixed in or on the lower end plate 3 by a fastening bushing 20.
  • the valve housing 15 has adjacent to the outlet opening 10 an open end face with an inner space 21.
  • lateral bores 22 are formed, which provide a fluid connection between the pressure chamber 8 and the interior 21.
  • the guide bush 16 is arranged coaxially with the outlet channel 11 or adjacent to the outlet opening 10, in which the closure head 17 is received longitudinally displaceable.
  • side holes 23 are formed in the guide bush.
  • the closure head 17 is cylindrical, and has areas along its longitudinal axis 24 with different diameters. Adjacent to the outlet opening 10, the closure head 17 has a first region 25 with a first diameter Di. Above the first region 25, the closure head 17 has a second region 26 with a second diameter D 2 , this second diameter D 2 being greater than the first diameter Di. The difference in size of these two diameters forms a differential surface on the closure head 17 Reference to the longitudinal axis 24 of the closure head 17 is substantially orthogonal. Figure 3 illustrates that the closure head 17 is in a portion between its first and second region 25, 26 flows through the lateral bores 22, 23 of the valve housing 15 and the guide bush 16 with water. Accordingly, the water interacts with the difference surface just mentioned. From a sufficient water pressure, a vertical component of force is exerted on the closure head 17 by means of the differential surface upwards, ie in a direction away from the outlet opening 10.
  • the valve unit 14 or the closure head 17 arranged displaceably therein can be moved between a first switching position and a second switching position.
  • the outlet opening 10 In the first switching position, the outlet opening 10 is closed. This is shown in the illustration of FIG. 2 or FIG. 3.
  • the closure head 17 is pressed by the bias of the spring 18 with a contact shoulder 27 against a sealing surface 28 of the outlet opening 10.
  • the outlet opening 10 When the outlet opening 10 is closed, the water contained in the pressure chamber 8 can not escape to the environment.
  • the vertical force component which acts on the differential surface of the closure head 17 becomes larger than the oppositely directed As a result, the sealing head 17 is raised from the sealing surface 28 of the outlet opening 10 upwards, so that the water can flow into the outlet channel 11 and escape to the environment.
  • the closure head 17 is lifted off the outlet opening 10, it is in a second switching position.
  • the outlet opening 10 is open in the second switching position of the valve unit 14 or its closure head 17, so that at least a subset of the water contained in the pressure chamber 8 can escape to the environment.
  • the closure head 17 is shown in its second switching position when it is lifted upwards from the outlet opening 10 as explained above.
  • the pressure chamber 8 of the pulse generator 1 is connected via the line 9 to a high-pressure water supply, which continuously pressurizes the pressure chamber 8 with water.
  • the closure head 17 In an initial state of the pulse generator 8, the closure head 17 is in its first switching position when, due to the bias of the spring 18, it closes the outlet opening 10. Accordingly, the water present in the pressure chamber 8 can not flow into the outlet channel 11 and through the nozzle 13 and escape to the environment.
  • the pressure chamber 8 is closed at its lower end plate 4. The pressure within the pressure chamber 8 then increases steadily, since water is supplied from the high-pressure water supply continuously under pressure into the pressure chamber 8. As explained with reference to FIG.
  • the water pressure acting on the differential surface of the closure head 17 leads to a vertical force component which acts on the closure head 17 in a direction away from the outlet opening 10.
  • a predetermined response pressure of the valve unit 14 and the End head 17 acting vertical force component is greater than the biasing force of the spring 18, so the closure head 17 lifts upwards from the outlet opening 10.
  • the water can flow into the outlet channel 11 and exit through the nozzle 13 to the environment.
  • the arrows A in FIG. 4 indicate the hydraulic high-pressure pulse in the form of a water jet which is discharged from the nozzle 13 to the environment.
  • the outflow of water from the pressure chamber 8 is throttled through the nozzle 13, with a flow area of the nozzle 13 being suitably chosen to effect such throttling.
  • This restriction generates a back pressure in the outflowing water, which propagates through the outlet channel 11 back into the pressure chamber 8.
  • the back pressure is always smaller than the operating pressure within the pressure chamber 8, but acts almost on the entire cross-sectional area of the closure head 17 and thus generates a relatively large force in an upward direction, ie away from the outlet opening 10.
  • the water contained in the pressure chamber 8 can thereby escape rapidly and in a very short time through the outlet opening 10, the outlet channel 11 and the nozzle 13 into the environment. In this way high pressure hydraulic pulses are delivered to and into the environment.
  • the nozzle 13 additionally has the effect that such high-pressure pulses are aligned in a defined direction.
  • the fluid with which the pressure chamber of the pulse generator 1 is continuously pressurized is preferably water or an aqueous solution.
  • the high-pressure pulses generated with the pulse generator 1 are of a hydraulic nature. This is advantageous for pulse input in cleaning wells when the pulse generator 1 is lowered into a filter tube of the well and submerged in water accordingly is.
  • the high pressure hydraulic pulse discharged from nozzle 13 of pulse generator 1 effectively propagates into the surrounding water or areas of the well, e.g. Filterkies originallyung and / or the adjacent natural mountains.
  • contaminants in the filter gravel and in the wells adjacent to the well or blockages in the pores of the grain skeleton of the mountain can be solved, whereby a cleaning, activation or regeneration of the well is improved.
  • the preferably hydraulic impulse entry into the well water thus ensures that possible pore blockages are repeatedly solved repeatedly in the presence of high flow velocities.
  • the pulse generator 1 has an adjusting device by means of which a bias of the spring 18 can be adjusted or changed. By changing the bias of the spring 18, the response pressure of the valve unit 14 is suitably adjusted, thereby increasing or decreasing the frequency as well as the intensity of the high-pressure pulses.
  • this adjusting device will be explained in detail.
  • an adapter 29 ( Figure 2) is fixed, in which an adjusting nut 30 is screwed.
  • the adjusting nut 30 holds a valve block 31 which is received in a recess 32 of the lower end plate 4.
  • the outlet channel 11 is formed centrally within the valve block 31, the outlet opening 10 being provided at an upper end of the valve block 31.
  • the nozzle 13 is provided at the end of the valve block 31 opposite to the outlet opening 10, namely in the opening 12.
  • the response pressure of the valve unit 14 can be adjusted from an outside of the housing 2 via the adjusting nut 30.
  • the valve housing 15 is moved translationally and pushes the closure head 17 via the guide bush 13 against the spring 18, which is thereby tensioned or relaxed depending on the direction of rotation of the adjusting nut 30.
  • the biasing force of the spring 18 pushes the closure head 17 against the sealing surface of the outlet opening 10, whereby the outlet channel 11 is closed.
  • the pressure is set at which the valve unit 14 and the pulse generator 1 trigger.
  • the mounting sleeve 20 is secured in the upper end plate 3 by a screw thread. Analogous to the adjustment of the adjusting nut 30 can then be increased or reduced by a screwing movement of this mounting bush, which is in contact with the spring 18, a bias just this spring 18 to change the set pressure of the valve unit 14 suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Safety Valves (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un dispositif (1) de production d'impulsions haute pression, comprenant un carter (2) doté d'une chambre de pression (8) apte à être remplie d'un fluide sous pression par l'intermédiaire d'une conduite d'alimentation haute pression (9), le carter (2) présentant au moins un orifice de sortie (10) qui relie la chambre de pression (8) à l'environnement; une unité soupape se déplaçant, en fonction de la pression régnant dans la chambre de pression (8), entre une première position de commutation dans laquelle elle ferme l'orifice de sortie (10), et une deuxième position de commutation dans laquelle elle ouvre l'orifice de sortie (10), permettant ainsi de céder au moins un volume partiel du fluide de la chambre de pression (8) sous pression à l'environnement via l'orifice de sortie (10) de manière à produire une impulsion haute pression, l'unité soupape (14) étant disposée sensiblement entièrement dans la chambre de pression (8).
PCT/DE2011/000219 2010-03-03 2011-03-03 Dispositif et procédé de production d'impulsions haute pression Ceased WO2011107082A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11718905.0A EP2580422B1 (fr) 2010-03-03 2011-03-03 Dispositif et procédé de production d'impulsions haute pression
DK11718905.0T DK2580422T3 (en) 2010-03-03 2011-03-03 Apparatus and method for generation of high pressure pulses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010010181.8 2010-03-03
DE201010010181 DE102010010181B3 (de) 2010-03-03 2010-03-03 Vorrichtung und Verfahren zum Erzeugen von Hochdruck-Impulsen

Publications (1)

Publication Number Publication Date
WO2011107082A1 true WO2011107082A1 (fr) 2011-09-09

Family

ID=44279133

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2011/000219 Ceased WO2011107082A1 (fr) 2010-03-03 2011-03-03 Dispositif et procédé de production d'impulsions haute pression

Country Status (4)

Country Link
EP (1) EP2580422B1 (fr)
DE (1) DE102010010181B3 (fr)
DK (1) DK2580422T3 (fr)
WO (1) WO2011107082A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013017720B3 (de) * 2013-10-18 2014-11-27 Berliner Wasserbetriebe Vorrichtung und Verfahren zum Lösen und Mobilisieren von Partikeln bei der Brunnen- und Drainageentsandung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024746A1 (fr) * 1995-02-07 1996-08-15 Frazier William C Procede visant a accroitre la production d'eau dans des puits
DE19537689C2 (de) 1994-10-11 1998-03-19 Tegeo Gmbh Verfahren zum Reinigen von Brunnenanlagen und Gerät für die Durchführung des Verfahrens
US5836393A (en) 1997-03-19 1998-11-17 Johnson; Howard E. Pulse generator for oil well and method of stimulating the flow of liquid
DE19843292A1 (de) * 1998-09-22 2000-04-13 Lothar Spitzner Vorrichtung und Verfahren zur Regenerierung und Reinigung von Brunnen, Rohrleitungen und Behältern
US6250388B1 (en) 1998-09-09 2001-06-26 Prowell Technologies Ltd Gas impulse device and method of use thereof
WO2004009955A1 (fr) * 2002-07-24 2004-01-29 Richard Selinger Procede pour produire des variations de pression dans un forage
EP1805092A1 (fr) 2004-10-25 2007-07-11 Sidel Participations Convoyeur associe a une machine d appret utilisee pour orienter des objets
EP1895092A1 (fr) 2006-08-31 2008-03-05 Alexander Steinbrecher Générateur d'impulsions
DE102007050966A1 (de) 2007-10-23 2009-04-30 Nillert, Peter, Dr. Ing. Vorrichtung und Verfahren zum Aktivieren oder Reinigen von Brunnen
WO2009089622A1 (fr) * 2008-01-17 2009-07-23 Wavefront Reservoir Technologies Ltd. Système pour injection pulsée de fluide dans un trou de forage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3423917C2 (de) * 1984-06-26 1986-08-21 Rolf 1000 Berlin Schmitz Abpumpkammer

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537689C2 (de) 1994-10-11 1998-03-19 Tegeo Gmbh Verfahren zum Reinigen von Brunnenanlagen und Gerät für die Durchführung des Verfahrens
WO1996024746A1 (fr) * 1995-02-07 1996-08-15 Frazier William C Procede visant a accroitre la production d'eau dans des puits
US5836393A (en) 1997-03-19 1998-11-17 Johnson; Howard E. Pulse generator for oil well and method of stimulating the flow of liquid
US6250388B1 (en) 1998-09-09 2001-06-26 Prowell Technologies Ltd Gas impulse device and method of use thereof
DE19843292A1 (de) * 1998-09-22 2000-04-13 Lothar Spitzner Vorrichtung und Verfahren zur Regenerierung und Reinigung von Brunnen, Rohrleitungen und Behältern
DE19843292C2 (de) 1998-09-22 2003-06-12 Lothar Spitzner Vorrichtung zur Regenerierung und Reinigung von Brunnen, Rohrleitungen und Behältern
WO2004009955A1 (fr) * 2002-07-24 2004-01-29 Richard Selinger Procede pour produire des variations de pression dans un forage
EP1805092A1 (fr) 2004-10-25 2007-07-11 Sidel Participations Convoyeur associe a une machine d appret utilisee pour orienter des objets
EP1895092A1 (fr) 2006-08-31 2008-03-05 Alexander Steinbrecher Générateur d'impulsions
DE102007050966A1 (de) 2007-10-23 2009-04-30 Nillert, Peter, Dr. Ing. Vorrichtung und Verfahren zum Aktivieren oder Reinigen von Brunnen
WO2009089622A1 (fr) * 2008-01-17 2009-07-23 Wavefront Reservoir Technologies Ltd. Système pour injection pulsée de fluide dans un trou de forage

Also Published As

Publication number Publication date
DK2580422T3 (en) 2016-03-21
DE102010010181B3 (de) 2011-07-21
EP2580422B1 (fr) 2015-12-16
EP2580422A1 (fr) 2013-04-17

Similar Documents

Publication Publication Date Title
EP3600765B1 (fr) Installation et procédé de découpe par jet d'eau chargée d'abrasif en suspension
DE2400925A1 (de) Schlagvorrichtung
EP3126094B1 (fr) Installation de coupe à suspension aqueuse abrasive
EP2755802B1 (fr) Dispositif pour la coupe avec jet d'eau contenant abrasiv
EP3226996A1 (fr) Dispositif de filtration, système hydraulique et procédé de lavage à contre-courant
EP1895092B1 (fr) Générateur d'impulsions
EP1583887B1 (fr) Procede et dispositif permettant d'intensifier la permeabilite de couches de sol proches d'un trou de forage ainsi que de corps de filtres et de couches de filtrage dans des puits et d'autres forages productifs
DE4114965A1 (de) Von einer treibpumpe betaetigte hydraulikzylinder-vorrichtung
EP2580422B1 (fr) Dispositif et procédé de production d'impulsions haute pression
EP2334874B1 (fr) Dispositif et procédé d'activation ou de nettoyage de puits
DE102009038385B4 (de) Rammbohrvorrichtung mit einem pneumatischen Antrieb und einer hydraulischen Umsteuerung der Bewegungsrichtung
DE202010003119U1 (de) Vorrichtung zum Erzeugen von Hochdruck-Impulsen
EP0842102B1 (fr) Dispositif de soufflage avec unite soupape externe
DE3912436A1 (de) Verfahren und vorrichtung zum regeln des abflusses
DE102015008339A1 (de) "Rammbohrvorrichtung und Verfahren zum Umsteuern einer Rammbohrvorrichtung"
DE102009018768B4 (de) Druckmittelbetätigbarer Aktuator mit integrierter Schnellentlüftung und zusätzlichem Schaltkraftimpuls beim Entlüften
DE10301338B3 (de) Verfahren und Vorrichtung zur Intensivierung der Durchlässigkeit von bohrungsnahen Bodenschichten sowie von Filterkörpern und Filterschichten in Brunnen und anderen Förderbohrungen
WO2009092490A2 (fr) Dispositif tendeur pour transmission par lien souple dans le mécanisme de distribution d'un véhicule à moteur
EP0333859B1 (fr) Dispositif pour le nettoyage de conduits
EP3600767B1 (fr) Installation et procédé de découpe par jet d'eau chargée d'abrasif en suspension
DE69208563T2 (de) Pneumatischer Druckverstärker
EP2489476B1 (fr) Appui de forage pour un marteau perforateur
DE3642473C2 (fr)
DE3702746C1 (de) Hydropulsator
DE3230669A1 (de) Ziehkissen fuer pressen

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11718905

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2011718905

Country of ref document: EP