EP0548768A1 - Procédé et dispositif pour influencer un liquide contenu dans le sol - Google Patents

Procédé et dispositif pour influencer un liquide contenu dans le sol Download PDF

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Publication number
EP0548768A1
EP0548768A1 EP92121370A EP92121370A EP0548768A1 EP 0548768 A1 EP0548768 A1 EP 0548768A1 EP 92121370 A EP92121370 A EP 92121370A EP 92121370 A EP92121370 A EP 92121370A EP 0548768 A1 EP0548768 A1 EP 0548768A1
Authority
EP
European Patent Office
Prior art keywords
shaft
liquid
permeable
wall
areas
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Withdrawn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
EP92121370A
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German (de)
English (en)
Inventor
Bruno Bernhardt
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.)
IEG Industrie Engineering GmbH
Original Assignee
IEG Industrie Engineering GmbH
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 IEG Industrie Engineering GmbH filed Critical IEG Industrie Engineering GmbH
Publication of EP0548768A1 publication Critical patent/EP0548768A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34—Arrangements for separating materials produced by the well
    • E21B43/40—Separation associated with re-injection of separated materials

Definitions

  • the invention relates to a method for influencing liquid in the ground by forming a liquid circuit in the ground by means of a pump arranged in a shaft introduced into the ground into the liquid region of interest, and a device for carrying out such a method.
  • the invention has for its object to provide a method of the type mentioned and an associated device so that a versatile treatment of liquid in the ground is possible, which also allows a greater accumulation of liquid while raising the liquid level.
  • the pump in the shaft can be operated up to the maximum delivery rate, which is dependent on the liquid flow conditions in the surrounding soil, and also high delivery pressures, in order to achieve the maximum possible liquid circulation in the soil.
  • the liquid that has not been removed is discharged back into the ground in the upper shaft area, where a very wide horizontal outflow area can be achieved, which can be favored by arranging a liquid-tight horizontal wall at least approximately at the level of the liquid in the ground.
  • An optimal circulation can still be favored by the fact that a partial flow is returned under pressure back into the ground and at a suitable point in the circulation area.
  • An outflow level can depend on the nature of the soil or but should be chosen with a view to a deluge in certain layers of the earth. However, it has been shown that a return of the withdrawn partial stream can also be dispensed with without fear of lowering the liquid level in the immediate vicinity of the shaft area, because sufficient groundwater is drawn into the forced liquid circuit.
  • the groundwater can also be sucked into the upper shaft area and returned to the ground in the lower shaft area.
  • the groundwater level in the vicinity of the shaft increases and a larger accumulation of liquid can be achieved.
  • the method according to the invention is not limited to the purification of groundwater from impurities. Therefore, when setting a liquid circuit strength, care must not be taken in all cases to maintain a laminar liquid flow in the ground. Rather, the method can also be used, for example, for chemical or biological treatment of the soil or the use of the soil as a storage space for excess rainwater or, for example, hot liquids, such as hot cooling water, which is kept in circulation, even with changing volumes, and as required for heating purposes withdrawn in the partial flow. In this case, the soil and not only the liquid located or introduced into it is also influenced, for example warmed up with a storage effect.
  • the method according to the invention also facilitates the often problematic cleaning of the filter from deposits which have a decisive influence on the operating time of the cleaning device. Due to the forced circulation, the filters and the filter gravel are more thoroughly flushed anyway. A short-term increase in the pump output and / or a reversal of the direction of delivery can also loosen deposits in the filter gravel surrounding a well pipe.
  • a device for carrying out the method according to the invention has at least one transverse wall with an opening for a through-channel between permeable wall sections which are spaced apart from one another in the longitudinal direction of the shaft, a partial-flow delivery line leading to a treatment device opening into one of the two shaft areas created by this transverse wall.
  • at least one return pipe which is only permeable in some areas, or at least one return shaft designed in this way can be provided for returning the partial liquid flow. Liquids to be kept in circulation can also be introduced into the ground via the return pipe or a return shaft.
  • the shaft areas can advantageously be delimited by a pipe with impermeable and permeable wall sections and transverse walls, and the space between the pipe and the actual shaft wall can be partially filled with impermeable barrier layers and partially with a permeable gravel filling, with at least the gravel filling before the permeable tube wall section provided for a liquid outlet is vented to the outside through an upper barrier layer.
  • the removal of undesired gas phases from the liquid circulation path can be promoted by the fact that the permeable gravel filling is under negative pressure. This negative pressure also favors the outflow of the liquid from the shaft.
  • metering lines for treatment agents can be led into one of the shaft areas in the liquid circuit or into the gravel filling.
  • the transverse wall provided with the opening for the through-channel is designed to be height-adjustable and is provided with an orifice jacket which can be placed in front of a permeable shaft wall section, as a result of which the shaft inlet cross-section for the liquid can be changed and thereby also the flow velocities can be influenced.
  • the division of the shaft into an upper and a lower region, which is necessary for producing a liquid circuit, can also take place by generating a turbulent water flow and / or a water-gas mixture between the two regions, which are thereby separated from one another in a water-impermeable manner.
  • a turbulent water flow can be achieved, for example, by means of a feed screw or an eddy current compressor.
  • FIG. 1 shows a well pipe 10 which is arranged in a shaft introduced into the soil 11 and has an upper permeable wall section 10.1 and at a distance therefrom a lower permeable wall section 10.2. Between the two permeable wall sections 10.1, 10.2, a transverse wall 12 is inserted in the well pipe, which has a through opening for a tubular through channel 13. A preferably electrically operated pump 14 is arranged in the through-channel 13.
  • the through-channel 13 has lateral outflow openings 13.1 and 13 at the level of the upper permeable wall section 10.1 an inflow opening 13.2 at its lower end.
  • the through channel 13 is extended upwards to a partial flow delivery line 15, which leads to the outside to a treatment device, not shown.
  • the groundwater in the ground 11 assumes a level 16 below the surface 17 of the ground.
  • groundwater located in the area 18 of the well pipe 10 is sucked off into the through-channel 13 and for the most part is conveyed via the outflow openings 13.1 into the upper area 19 of the well pipe.
  • a small part of the delivered liquid can be discharged via the partial flow delivery line 15 as required.
  • the liquid pumped up into the area 19 of the well pipe 10 flows through the permeable wall section 10.1 to the outside, where there is a groundwater flow between the upper and the lower permeable wall section 10.2, the flow pattern of which is shown in FIG. 1 with potential lines 20.
  • Fig. 2 shows a device in which the well pipe 10 with its two permeable wall sections 10.1 and 10.2 is arranged within a shaft 21 with a significantly larger diameter.
  • the space between the wall of the shaft 21 and the well pipe 10 is filled around the impermeable wall sections with a sealing compound 22 indicated by cross hatching, but around the permeable wall sections 10.1 and 10.2 with a permeable gravel fill 23. Since air or other free gas inclusions in the soil make it difficult for the liquid circuit to be moved by the pump 14 in the through-channel 13, ventilation of the soil in the area of the gravel fillings 23 is provided.
  • a vent pipe 24 is drawn on the right side of the well pipe 10, which is guided parallel to the well pipe 10 over its entire length and has a screen wall, not shown in detail, at the level of the gravel fillings 23.
  • the vent can also be forced, as shown on the left in Fig. 2.
  • a return line 28 is drawn into the shaft area 19, via which a gas circulation flow can be formed by means of the fan 26 through the area 19 of the well pipe 10 and the liquid-free part of the permeable wall section 10.1, which in this case is not used for soil ventilation , but serves to prevent the liquid-free part of the liquid-permeable wall area 10.1 from becoming loose.
  • nitrogen can be used as the gaseous medium.
  • a larger number of holes formed in the tubular through-channel serve as outflow openings 13.1 of the through-channel 13, which here is extended to the partial-flow delivery line 15 via an adjustable throttle point 29.
  • the embodiment of the device according to FIG. 3 differs from that according to FIG. 2 by a second transverse wall 30 in the interior of the well pipe 10 and a dispensing with a sealing compound 22 in the middle well pipe area to facilitate filter gravel flushing for cleaning purposes.
  • a second transverse wall 30 in the interior of the well pipe 10 and a dispensing with a sealing compound 22 in the middle well pipe area to facilitate filter gravel flushing for cleaning purposes.
  • the area 19 of the well pipe 10 which is delimited from the outside by the permeable upper wall section 10. 1, is sealed off at the top with respect to a liquid-free upper pipe area 31.
  • a liquid-tight horizontal wall 32 has been introduced around the well shaft at the level of the normal groundwater level 16 in the soil 11.
  • a very strong pump 14 can be used, which can build up a very strong excess liquid pressure in the area 19 of the well pipe 10.
  • the thick arrows shown show the rinsing water path in the filter gravel layer during the high-pressure cleaning process.
  • the lower end of the well pipe 10 is formed into a settling trough 33.
  • Fig. 4 shows an embodiment in which the device for forming a liquid circuit in the soil 11 and for removing a liquid partial flow is combined with a device for vacuum evaporation of easily soluble contaminants from the groundwater.
  • this device is suitable for use in areas with tense groundwater or for working with negative pressure differences between the well shaft and degassing areas located outside the well pipe.
  • a well pipe 40 is introduced into the shaft 21 formed provided below the normal liquid level with an upper permeable wall area 40.1 and a lower permeable wall area 40.2.
  • a liquid circuit is again brought about by means of a pump 44, which is arranged in a tubular through-channel 43 penetrating a transverse wall 42.
  • the through-channel 43 with its lower inlet opening 43.2 ends with an upper outlet opening 43.1 in the well pipe area 49.
  • a separate partial flow feed line 45 in which a feed pump 46 is arranged, leads from this well pipe area 49 to the outside.
  • a nozzle body 50 is arranged in the well pipe area 49 below the liquid level 47 formed in the shaft in an operating mode known from German utility model 88 08 089 and described there.
  • Gas is supplied to the nozzle body 50 from a connection 51 via a pressure receiving space 52 and via a gas line 53.
  • the gas is discharged from the well shaft via an intake duct 54 of a fan 55 and via a pressure relief valve 56.
  • a liquid-impermeable wall 32 is laid in the ground 11 as in the device according to FIG. 3.
  • the withdrawn liquid stream is passed via the partial flow delivery line 45 into a treatment device 57, indicated by dash-dotted lines, and from there it arrives in a return line 58, which leads to a pump 59, with which the partial flow liquid is fed into a press probe 60, which is introduced into the soil, i.e. is returned under pressure into the circulation area of the liquid in the soil 11.
  • the return line takes place here approximately at the height of the lower permeable wall section 40.2 of the well pipe, at which height according to the flow diagram according to FIG.
  • the flow profile of the liquid circuit generated can be influenced, for example compressed, by changing the inlet cross section of this wall section.
  • the transverse wall 42 is arranged in a height-adjustable manner in a manner not shown and is provided with a diaphragm casing 64 which, depending on the height of the transverse wall 42, can cover a more or less large area of the permeable wall section 40.2.
  • additional liquid can also be introduced into the soil from a feed line 65 into the liquid circuit generated there via press probes 60.
  • This can be a treatment liquid or a storage liquid, depending on the purpose for which the device is to be used to carry out the process for forming a liquid circuit and extracting a partial flow therefrom.
  • FIG. 5 shows a well pipe 10 with a water-permeable wall, which, as in FIGS. 1-4, is divided into two areas 18 and 19.
  • no transverse wall for separating the areas is provided here, but rather an area 71 of turbulent water flow 70, which is generated by an eddy current compressor 72, which is also responsible for the delivery of water from the lower shaft area 18 through the through channel 13.
  • a simple feed screw can also be used or air can be blown into the area 71 via a tube in order to achieve a watertight separation of the two areas 18, 19.
  • the passage cross section of the well pipe 10 can be narrowed to such an extent that, with a corresponding delivery rate of the pump, a water backflow occurs, which acts like a partition.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Processing Of Solid Wastes (AREA)
EP92121370A 1991-12-24 1992-12-16 Procédé et dispositif pour influencer un liquide contenu dans le sol Withdrawn EP0548768A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4142917 1991-12-24
DE4142917 1991-12-24
DE4204991A DE4204991A1 (de) 1991-12-24 1992-02-19 Verfahren und einrichtung zur beeinflussung von im erdreich befindlicher fluessigkeit
DE4204991 1992-02-19

Publications (1)

Publication Number Publication Date
EP0548768A1 true EP0548768A1 (fr) 1993-06-30

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ID=25910533

Family Applications (1)

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EP92121370A Withdrawn EP0548768A1 (fr) 1991-12-24 1992-12-16 Procédé et dispositif pour influencer un liquide contenu dans le sol

Country Status (3)

Country Link
US (1) US5348420A (fr)
EP (1) EP0548768A1 (fr)
DE (1) DE4204991A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0648914A1 (fr) * 1993-10-15 1995-04-19 IEG Industrie-Engineering GmbH Dispositif pour influencer le liquide contenu dans le sol
EP3020876A1 (fr) * 2014-11-14 2016-05-18 Bartsch Pumpen- und Wassertechnik Dispositif de nettoyage d'un forage de puits perfore

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US5472294A (en) * 1990-03-28 1995-12-05 Environmental Improvement Technologies, Inc. Contaminant remediation, biodegradation and volatilization methods and apparatuses
US5464309A (en) * 1993-04-30 1995-11-07 Xerox Corporation Dual wall multi-extraction tube recovery well
DE4322420C2 (de) * 1993-07-06 1995-10-05 Zueblin Ag Kombinierte Grundwasserreinigung im in-situ-Verfahren
DE4325919A1 (de) * 1993-08-02 1995-02-09 Ieg Ind Engineering Gmbh Verfahren und Einrichtung zur Beeinflussung von im Erdreich befindlichen Flüssigkeiten
DE4335574A1 (de) * 1993-08-30 1995-03-02 Biopract Gmbh Verfahren zur Entfernung von Schadstoffablagerungen in flüssigen, fest-flüssigen und festen, wasserdurchlässigen Umgebungen
US5468088A (en) * 1993-12-30 1995-11-21 Cornell Research Foundation, Inc. Feedback control of groundwater remediation
DE4438067A1 (de) * 1994-10-25 1996-05-02 Ieg Ind Engineering Gmbh Verfahren und Anordnung zum Austreiben von Verunreinigungen aus dem Grundwasser und dem von ihm durchströmten Erdreich
US5813798A (en) * 1997-03-28 1998-09-29 Whiffen; Greg Piecewise continuous control of groundwater remediation
NO305259B1 (no) 1997-04-23 1999-04-26 Shore Tec As FremgangsmÕte og apparat til bruk ved produksjonstest av en forventet permeabel formasjon
US5879108A (en) * 1997-06-09 1999-03-09 Eder Associates Air sparging/soil vapor extraction apparatus
US6357525B1 (en) 1999-04-22 2002-03-19 Schlumberger Technology Corporation Method and apparatus for testing a well
US6382315B1 (en) 1999-04-22 2002-05-07 Schlumberger Technology Corporation Method and apparatus for continuously testing a well
US6347666B1 (en) 1999-04-22 2002-02-19 Schlumberger Technology Corporation Method and apparatus for continuously testing a well
US6330913B1 (en) 1999-04-22 2001-12-18 Schlumberger Technology Corporation Method and apparatus for testing a well
US6305878B1 (en) * 2000-04-03 2001-10-23 The United States Of America As Represented By The Secretary Of The Navy Adjustable depth air sparging well
US6787038B2 (en) * 2002-02-05 2004-09-07 Cerestar Holding B.V. Extraction of pollutants from underground water
CN100594957C (zh) * 2007-12-18 2010-03-24 深圳市蓝韵实业有限公司 一种超声肿瘤治疗系统水处理装置
US7921714B2 (en) * 2008-05-02 2011-04-12 Schlumberger Technology Corporation Annular region evaluation in sequestration wells
US20110277312A1 (en) * 2010-05-17 2011-11-17 William Redvers Belisle Oil mitigation device for reducing oil levels in the Gulf of Mexico
ES2425548T3 (es) * 2011-02-11 2013-10-16 Luxin (Green Planet) Ag Sistema de gestión de agua subterránea para minas y procedimiento para la operación de dicho sistema de gestión de agua
DE102015002744B4 (de) 2014-05-14 2019-05-09 Ieg - Industrie-Engineering Gmbh Vorrichtung und Verfahren zur Aufkonzentration und Nutzung von Erdwärme in einem Grundwasserkreislauf

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EP0418570A1 (fr) * 1989-09-16 1991-03-27 IEG Industrie-Engineering GmbH Dispositif pour la purification des eaux souterraines polluées
DE3931011A1 (de) * 1989-09-16 1991-03-28 Ieg Ind Engineering Gmbh Anordnung zum reinigen von verschmutzten filtern in brunnen zur grundwasserreinigung
EP0431507A2 (fr) * 1989-12-05 1991-06-12 Reinhold Dipl.-Ing. Bauer Dispositif et méthode pour le nettoyage des filtres à gravier dans le puits d'eau
DE4017013A1 (de) * 1990-05-26 1991-11-28 Aquaplus Brunnensanierung Kaet Vorrichtung zum reinigen von brunnenschaechten
DE4039824C1 (fr) * 1990-12-13 1991-12-19 Ieg - Industrie-Engineering Gmbh, 7410 Reutlingen, De

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Publication number Priority date Publication date Assignee Title
DE8808089U1 (de) * 1988-06-23 1988-10-06 IEG - Industrie-Engineering GmbH, 7410 Reutlingen Brunnen zum Austreiben leichtflüchtiger Verunreinigungen aus gespanntem Grundwasser
EP0418570A1 (fr) * 1989-09-16 1991-03-27 IEG Industrie-Engineering GmbH Dispositif pour la purification des eaux souterraines polluées
DE3931011A1 (de) * 1989-09-16 1991-03-28 Ieg Ind Engineering Gmbh Anordnung zum reinigen von verschmutzten filtern in brunnen zur grundwasserreinigung
EP0431507A2 (fr) * 1989-12-05 1991-06-12 Reinhold Dipl.-Ing. Bauer Dispositif et méthode pour le nettoyage des filtres à gravier dans le puits d'eau
DE4017013A1 (de) * 1990-05-26 1991-11-28 Aquaplus Brunnensanierung Kaet Vorrichtung zum reinigen von brunnenschaechten
DE4039824C1 (fr) * 1990-12-13 1991-12-19 Ieg - Industrie-Engineering Gmbh, 7410 Reutlingen, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0648914A1 (fr) * 1993-10-15 1995-04-19 IEG Industrie-Engineering GmbH Dispositif pour influencer le liquide contenu dans le sol
EP3020876A1 (fr) * 2014-11-14 2016-05-18 Bartsch Pumpen- und Wassertechnik Dispositif de nettoyage d'un forage de puits perfore

Also Published As

Publication number Publication date
US5348420A (en) 1994-09-20
DE4204991A1 (de) 1993-07-01

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