EP0641916A2 - Installation et dispositif de prélèvement d'échantillons gazeux et/ou liquides de différentes couches - Google Patents

Installation et dispositif de prélèvement d'échantillons gazeux et/ou liquides de différentes couches Download PDF

Info

Publication number
EP0641916A2
EP0641916A2 EP94113284A EP94113284A EP0641916A2 EP 0641916 A2 EP0641916 A2 EP 0641916A2 EP 94113284 A EP94113284 A EP 94113284A EP 94113284 A EP94113284 A EP 94113284A EP 0641916 A2 EP0641916 A2 EP 0641916A2
Authority
EP
European Patent Office
Prior art keywords
measuring tube
sections
layers
flow
tube
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Withdrawn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
EP94113284A
Other languages
German (de)
English (en)
Other versions
EP0641916A3 (fr
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 EP0641916A2 publication Critical patent/EP0641916A2/fr
Publication of EP0641916A3 publication Critical patent/EP0641916A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/084—Obtaining fluid samples or testing fluids, in boreholes or wells with means for conveying samples through pipe to surface
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/124—Units with longitudinally-spaced plugs for isolating the intermediate space
    • 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
    • E21B43/14—Obtaining from a multiple-zone well
    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells

Definitions

  • the invention relates to a method and a device for taking gas or liquid samples from different layers via a common measuring tube which penetrates these layers and is divided into individual longitudinal sections by transverse walls and has a tube wall which is permeable in the individual longitudinal sections.
  • the invention has for its object to provide a method and a device of the type mentioned so that it is ensured that the gas removed at a sampling point in the measuring tube or the liquid removed there only comes from the surrounding layer located there.
  • the object is achieved according to the invention in that from the pipe sections located at the level of the surrounding layers of interest, only as much or less gas or liquid quantity is withdrawn as by normal inflow from the outside into the relevant pipe without changing the flow velocity in front of the measuring pipe Pipe section occurs at the time of sampling.
  • the pumps for extracting gas or liquid from the individual measuring tube sections can be controlled via a microprocessor as a function of flow measurement values which are provided by flow meters arranged in the measuring tube sections or adjacent to the layers.
  • the method according to the invention can be carried out with a device which has at least one measuring tube introduced into the layers to be monitored with at least partially gas and liquid permeable wall and an interior divided into individual longitudinal sections by transverse walls and with at least one leading from the longitudinal sections after a measuring tube end Perform pump connectable removal lines, in which, according to the invention, the wall openings in the measuring tube sections are restricted to a specific first circumferential area facing the flow direction of the medium flowing in the layers and to be examined.
  • additional wall openings can be formed in the measuring tube sections in a second peripheral area opposite the first peripheral area.
  • the measuring tubes are aligned to the determined direction of flow with their permeable wall areas, which expediently each extend over a circumferential angle of 90 °. This ensures that in the abovementioned removal criteria with regard to the amount of sample from the layer located at the removal point, only newly flowing medium reaches the measuring tube section. In the case of continuous sampling from a measuring tube section, a first permeable wall area facing the inflow direction is sufficient.
  • At least one free one can be found in a flow plane in the surroundings through the two permeable wall areas of the measuring tube sections and the measuring tube axis Pipe with a permeable wall or a non-subdivided additional hole are formed over the entire length of the measuring tube, which is pressurized to trigger a forced flow of the medium to be examined and via which medium is pumped off.
  • an additional tube can advantageously be arranged to the side or upstream of the measuring tube or an adjacent additional hole can be created, which is also divided into individual sections and provided with a permeable wall.
  • Flow meters of the pump control device are inserted into the individual pipe sections at the height of the surrounding layers of interest and measure the medium flowing through the pipe sections at this layer height in order to determine the flow velocity and thus that per unit of time maximum amount of gas or liquid flowing into the measuring tube sections.
  • a deflection of the essentially horizontal flow into a flow level above or below is avoided within the measuring tube by the transverse walls.
  • ring-shaped separating surfaces can be arranged horizontally around the measuring tube at certain intervals when filling the cavity between measuring tube and soil. These separating surfaces can be annular disks or foils. A water-permeable material sprayed on in a thin layer can also serve as the separating surface. In the same way, the flow between the additional pipe and the soil can be kept on horizontal levels.
  • FIG. 1 can be seen as a purely schematic representation with regard to the design of the individual parts of the device. It shows a measuring tube 10 which is inserted into a bore which is passed through a plurality of bottom layers a - h lying one above the other.
  • the measuring tube is divided by transverse walls 11 into a plurality of measuring tube sections 12, of which those measuring tube sections from which a sampling is provided are designated in FIG. 1 with the reference number 12, followed by the letter of the associated bottom layer.
  • These are the well pipe sections 12b, 12c, 12e, 12f and 12g.
  • the groundwater level 13 in the soil layer b is indicated by a dashed line.
  • the direction of flow of the groundwater is marked with arrows 14.
  • All transverse walls 11 of the measuring tube 10 are fastened on a central tube 15 at a distance of about 30 cm from one another and together with this tube 15 can also be moved together in the measuring tube 10.
  • the tube 15 can at the same time also take the sampling lines 16, which lead from individual measuring tube sections to a conveying device 17 located outside the measuring tube 10. These sampling lines 16 are all shown separately in the schematic representation of FIG. 1 and located outside the tube 15.
  • different arrangements can be made, as described for example in DE-PS 41 25 141 or patent application P 43 16 973.2 of the applicant.
  • pumps 17.1 are arranged, which are controlled or regulated via a microprocessor with regard to their variable delivery capacity as a function of control signals, which are supplied via an electrical collecting line 18 from flow meters 19, which in the exemplary embodiment shown are in a measuring tube adjacent pipe 20 are arranged at the level of the soil layers b , e , f and g taken into account and with which the flow velocity of the groundwater in the individual soil layers is measured.
  • the tube 20 is continuously provided with a permeable wall, and the flow meters 19 are arranged in tube sections which are separated from one another by transverse walls 21.
  • the partition walls 21 are fastened on a central support tube 22, through which the electrical connecting lines to the individual flow meters 19 are passed.
  • the measuring tube 10 is provided with wall openings 23 both in the area of the measuring tube sections from which groundwater samples are to be taken, and in the remaining sections, but these are not distributed over the entire circumferential area of the measuring tube. This is explained below in connection with FIGS. 2 and 3.
  • Fig. 1 is shown with dash-dotted lines in the direction of the groundwater flow behind the measuring tube 10, an additional bore 24 in the vicinity of the measuring tube, which extends over the entire length of the measuring tube 10, which can have only a small diameter and which is divided by no transverse walls is.
  • a negative pressure is also generated by means of a fan 25, also indicated by dash-dotted lines, or groundwater is sucked off by means of a pump, so that in the case of largely standing groundwater, a forced flow of groundwater can be forced through the individual measuring tube sections 12 of the measuring tube 10.
  • the enlarged representation of the measuring tube section 12g in FIG. 2 compared to FIG. 1 shows the structure of the transverse walls 11 sealing the individual measuring tube sections against one another.
  • the measuring tube 10 is surrounded by a gravel layer 28. Within this gravel layer there are horizontally annular disks 27 which are at regular intervals (about 15 cm) when filling the cavity between the measuring tube 10 and the ground be placed on the gravel layer.
  • the measuring tube 10 has wall openings 23 over its entire longitudinal extent. These are advantageously distributed such that narrow strips are formed at regular intervals (approx. 15 cm) around the tube, on which there are no openings. A good seal between the measuring tube 10 and the transverse wall 11 can be achieved in the area of these bands.
  • the wall openings 23 present in the measuring tube 10 are, however, limited to two mutually opposite circumferential regions of the measuring tube, as can be seen from FIG. 3. These two permeable wall areas are each limited to a circumferential angle of 90 ° and are aligned with the direction of flow of the groundwater indicated by the arrows 14. Together with the measuring tube axis, the two wall areas define a flow plane in which the additional bore 24 (FIG. 1) is arranged.
  • groundwater flowing in from the right can flow into the measuring tube sections through the first wall area provided with openings 23 and flow out of the measuring tube sections through the opposite second permeable wall area as long as no sample is taken into the tube 15.
  • the pumping capacity of the pumps of the conveying device 17 is controlled in such a way during sampling that at most as much groundwater is withdrawn from a measuring tube section as flows through the upstream first permeable wall area into the measuring tube section, here 12g, in the course of the natural groundwater flow 2 and 3 upstream with a dash-dotted flow potential line 26, which here runs straight vertical and ensures that when sampling in a measuring tube section, groundwater from neighboring soil layers is not also sucked in in an undesirable manner.
  • Only downstream, behind the measuring tube 10 is a sampling in a measuring tube section noticeable by a reduced outflow speed of the groundwater and a correspondingly deformed flow potential line 26 '.
  • One in this area possible mixing of groundwater from adjacent layers has no repercussions on the sampling area.
  • the measuring tube 10 can also have wall openings 23 in its measuring tube sections provided for sampling only in the upstream first region.
  • continuous sampling the inflowing groundwater is at least almost completely discharged via the sampling line.
  • intermittent sampling in this case the pent-up older groundwater forming the filling of the measuring tube section must first be suctioned off until newly flowing groundwater reaches the sampling line.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sampling And Sample Adjustment (AREA)
EP94113284A 1993-09-03 1994-08-25 Installation et dispositif de prélèvement d'échantillons gazeux et/ou liquides de différentes couches. Withdrawn EP0641916A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4329729A DE4329729A1 (de) 1993-09-03 1993-09-03 Verfahren und Einrichtung zur Entnahme von Gas- oder Flüssigkeitsproben aus verschiedenen Schichten
DE4329729 1993-09-03

Publications (2)

Publication Number Publication Date
EP0641916A2 true EP0641916A2 (fr) 1995-03-08
EP0641916A3 EP0641916A3 (fr) 1995-08-02

Family

ID=6496730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94113284A Withdrawn EP0641916A3 (fr) 1993-09-03 1994-08-25 Installation et dispositif de prélèvement d'échantillons gazeux et/ou liquides de différentes couches.

Country Status (2)

Country Link
EP (1) EP0641916A3 (fr)
DE (1) DE4329729A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719897A1 (fr) * 1994-12-20 1996-07-03 "STUDIECENTRUM VOOR KERNENERGIE", instelling van openbaar nut. Dispositif et procédé pour mesurer des paramètres de sol à comportement plastique
WO2001065063A1 (fr) * 2000-03-02 2001-09-07 Shell Internationale Research Maatschappij B.V. Controle sans fil d'injection et d'entree de puits de fond
US6662875B2 (en) 2000-01-24 2003-12-16 Shell Oil Company Induction choke for power distribution in piping structure
US6679332B2 (en) 2000-01-24 2004-01-20 Shell Oil Company Petroleum well having downhole sensors, communication and power
US6715550B2 (en) 2000-01-24 2004-04-06 Shell Oil Company Controllable gas-lift well and valve
US6817412B2 (en) 2000-01-24 2004-11-16 Shell Oil Company Method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system
US6840316B2 (en) 2000-01-24 2005-01-11 Shell Oil Company Tracker injection in a production well
US6851481B2 (en) 2000-03-02 2005-02-08 Shell Oil Company Electro-hydraulically pressurized downhole valve actuator and method of use
US7147059B2 (en) 2000-03-02 2006-12-12 Shell Oil Company Use of downhole high pressure gas in a gas-lift well and associated methods
US7170424B2 (en) 2000-03-02 2007-01-30 Shell Oil Company Oil well casting electrical power pick-off points
DK178448B1 (da) * 2011-01-18 2016-02-29 Guangzhou Inst Geochem Cas Flersektioners sediment porevandprøveudtager
CN111766106A (zh) * 2020-07-31 2020-10-13 吕梁学院 一种用于地质勘探的深层水泥土浆液取样装置
CN116084932A (zh) * 2023-04-10 2023-05-09 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) 一种水工环地质钻孔分层抽水设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19726813C2 (de) * 1997-06-25 2003-03-27 Bischoff Wolf Anno Verfahren zur Bestimmung der Verlagerung von im Bodenwasser gelösten Stoffen und Vorrichtung zur Durchführung des Verfahrens
US6119780A (en) * 1997-12-11 2000-09-19 Camco International, Inc. Wellbore fluid recovery system and method
DE19841301A1 (de) * 1998-09-10 2000-11-09 Econ Ag Verfahren zur zerstörungsfreien Sondierung von Sickerwasser und darin gelöster chemischer Verbindungen zum Zwecke der wissenschaftlichen Überwachung der Mobilität und Verfügbarkeit dieser Stoffe in tiefer gelegenen wasserleitenden Bodenhorizonten
DE102004041334B3 (de) * 2004-08-20 2006-03-23 Gfi Grundwasserforschungsinstitut Gmbh Dresden Vorrichtung zur verfälschungsfreien teufenbezogenen isobaren Entnahme von Grundwasserproben
DE102015111232B3 (de) * 2015-07-10 2016-05-12 Umwelt-Geräte-Technik GmbH Vorrichtung zur Entnahme von Bodenlösungen
CN110410028B (zh) * 2019-06-26 2021-06-22 温州工程勘察院有限公司 一种工程地质勘察装置及其使用方法
CN117759196B (zh) * 2024-02-22 2024-05-03 山东省地质矿产勘查开发局第七地质大队（山东省第七地质矿产勘查院） 一种勘探孔分层抽水试验封隔止水装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334920A (en) * 1940-09-16 1943-11-23 Standard Oil Co California Method for testing wells
US3103813A (en) * 1960-10-28 1963-09-17 Continental Oil Co Method and apparatus for sampling production of subterranean reservoirs
US4669537A (en) * 1986-09-16 1987-06-02 Otis Engineering Corporation Well test tool and system
US4838079A (en) * 1987-05-20 1989-06-13 Harris Richard K Multi-channel pipe for monitoring groundwater
DE4125141A1 (de) * 1991-07-30 1993-02-04 Ieg Ind Engineering Gmbh Messproben-entnahmevorrichtung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8420212U1 (de) * 1984-12-13 Van Es - Rossmark - R. Haitjema Grondboorbedrijven BV, Appingedam Vorrichtung zum Ziehen von Wasserproben
SU672535A1 (ru) * 1973-12-25 1979-07-05 Zelman Isaak G Устройство дл отбора проб жидкостей
SU907228A1 (ru) * 1980-06-19 1982-02-23 Всесоюзный научно-исследовательский и проектно-конструкторский институт геофизических исследований геологоразведочных скважин Устройство дл испытани пластов
DE3318656A1 (de) * 1982-05-25 1984-01-12 BPB Industrie PLC, London Induction-log-messverfahren und -vorrichtung fuer geophysikalische bohrlochmessungen
DE3502570A1 (de) * 1985-01-26 1986-07-31 Pumpen-Boese KG, 3006 Burgwedel Verfahren zur entnahme von wasserproben und filter zur durchfuehrung des verfahrens
IL76275A (en) * 1985-09-02 1989-02-28 Yeda Res & Dev Water sampling system
SU1488462A1 (ru) * 1987-07-27 1989-06-23 Zap Sib Ni Pk I T Glubokogo Ra Cпocoб иcпыtahия плactob
DE3804140A1 (de) * 1988-02-11 1989-08-24 Int Biotech Lab Verfahren und vorrichtung zur gleichzeitigen vielfachen probenentnahme von grundwaessern aus unterschiedlich tiefen erdreichschichten, insbesondere von mit leichtfluechtigen stoffen beladenen waessern
DE3828468A1 (de) * 1988-08-22 1990-03-08 Michael Dr Bredemeier In den boden einfuehrbare lysimetersonde
US5035149A (en) * 1989-12-29 1991-07-30 Wierenga Peter J Soil solution sampler
DE4003584A1 (de) * 1990-02-07 1991-08-08 Preussag Anlagenbau Verrohrung zum ausbau einer grundwassermessstelle
US5150622A (en) * 1991-02-19 1992-09-29 Vollweiler Arthur R Vapor probe for soil gas vapor sampler
DE4121397C2 (de) * 1991-06-28 1997-03-20 Bosch Gmbh Robert Einrichtung zur Erfassung von Wasserzustandsdaten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334920A (en) * 1940-09-16 1943-11-23 Standard Oil Co California Method for testing wells
US3103813A (en) * 1960-10-28 1963-09-17 Continental Oil Co Method and apparatus for sampling production of subterranean reservoirs
US4669537A (en) * 1986-09-16 1987-06-02 Otis Engineering Corporation Well test tool and system
US4838079A (en) * 1987-05-20 1989-06-13 Harris Richard K Multi-channel pipe for monitoring groundwater
DE4125141A1 (de) * 1991-07-30 1993-02-04 Ieg Ind Engineering Gmbh Messproben-entnahmevorrichtung

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009006A3 (nl) * 1994-12-20 1996-10-01 Studiecentrum Kernenergi Werkwijze en inrichting voor het meten van parameters van plastische grond.
US5646337A (en) * 1994-12-20 1997-07-08 Studiecentrum Voor Kernenergie, Instelling Van Openbaar Nut Method and device for measuring parameters of plastic ground
EP0719897A1 (fr) * 1994-12-20 1996-07-03 "STUDIECENTRUM VOOR KERNENERGIE", instelling van openbaar nut. Dispositif et procédé pour mesurer des paramètres de sol à comportement plastique
US6840316B2 (en) 2000-01-24 2005-01-11 Shell Oil Company Tracker injection in a production well
US6662875B2 (en) 2000-01-24 2003-12-16 Shell Oil Company Induction choke for power distribution in piping structure
US6679332B2 (en) 2000-01-24 2004-01-20 Shell Oil Company Petroleum well having downhole sensors, communication and power
US6715550B2 (en) 2000-01-24 2004-04-06 Shell Oil Company Controllable gas-lift well and valve
US6817412B2 (en) 2000-01-24 2004-11-16 Shell Oil Company Method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system
WO2001065063A1 (fr) * 2000-03-02 2001-09-07 Shell Internationale Research Maatschappij B.V. Controle sans fil d'injection et d'entree de puits de fond
US6851481B2 (en) 2000-03-02 2005-02-08 Shell Oil Company Electro-hydraulically pressurized downhole valve actuator and method of use
US7147059B2 (en) 2000-03-02 2006-12-12 Shell Oil Company Use of downhole high pressure gas in a gas-lift well and associated methods
US7170424B2 (en) 2000-03-02 2007-01-30 Shell Oil Company Oil well casting electrical power pick-off points
DK178448B1 (da) * 2011-01-18 2016-02-29 Guangzhou Inst Geochem Cas Flersektioners sediment porevandprøveudtager
CN111766106A (zh) * 2020-07-31 2020-10-13 吕梁学院 一种用于地质勘探的深层水泥土浆液取样装置
CN116084932A (zh) * 2023-04-10 2023-05-09 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) 一种水工环地质钻孔分层抽水设备

Also Published As

Publication number Publication date
DE4329729A1 (de) 1995-03-09
EP0641916A3 (fr) 1995-08-02

Similar Documents

Publication Publication Date Title
EP0641916A2 (fr) Installation et dispositif de prélèvement d'échantillons gazeux et/ou liquides de différentes couches
DE4227570C1 (de) Anordnung zum Austreiben leichtflüchtiger Verunreinigungen an Ort und Stelle
EP0548768A1 (fr) Procédé et dispositif pour influencer un liquide contenu dans le sol
EP0555734B1 (fr) Dispositif pour l'épuration de l'eau souterraine
DE69511859T2 (de) Siebvorrichtung zum filtrieren von wasser für ein notkühlsystem in einem kernkraftwerk
DE2723618A1 (de) Verfahren und vorrichtung zur bestimmung der dichte einer beschwerten spuelfluessigkeit einer tief-, insbesondere einer oelbohrung
DE2520389A1 (de) Drosselorgan
DE102007034158B4 (de) Vorrichtung zur indirekten Messung der Erschöpfung des Filtermittels eines Filters
EP0457261A1 (fr) Dispositif de la purification, par exemple de l'eau souterraine contaminée
DE1761339B2 (de) Vorrichtung zum abscheiden des fluessigkeitsinhaltes einer faseraufschlaemmung
EP0207042B2 (fr) Méthode pour puiser de l'eau exempte de sable d'un puits ainsi qu'un dispositif approprié
DE4040820C2 (de) Einrichtung und Verfahren zum Reinigen von belastetem Grundwasser
EP0345256A1 (fr) Procede pour realiser un puits.
DE3342689C2 (de) Filtervorrichtung zum Entfernen von Verunreinigungen aus Flüssigkeiten, insbesondere aus Dispersionsfarben
DE2045142A1 (de) Vorrichtung zum Behandeln von Faden mit Flüssigkeit
DE2532528C3 (de) Verfahren zur Einstellung eines bestimmten Verteilungsgesetzes des Durchflusses in einem Mediumsstrom, Vorrichtung zur Durchführung des Verfahrens und Verwendung des Verfahrens bzw. der Vorrichtung
DE2624059A1 (de) Verfahren und einrichtung zur bestimmung des porenwasserdrucks in erde
DE3011339C2 (de) Verfahren zur Reinigung der Röhren eines Kraftwerkskondensators und Einrichtung zur Durchführung des Verfahrens
DE2624758A1 (de) Vorrichtung zur ueberwachung eines fluessigkeitsstromes
EP0066646A1 (fr) Dispositif et procédé pour la pénétration des moyens d'imprégnation liquide et/ou déshydrateurs dans un murage
EP3835751A1 (fr) Procédé et dispositifs de mesure permettant de déterminer la densité et le débit massique d'un fluide s'écoulant dans un tuyau
WO1994024522A1 (fr) Procede, agencement et dispositif permettant de determiner l'ecoulement d'un liquide a surface libre
EP0164378A1 (fr) Installation pour le traitement d'objets au moyen d'un liquide
EP0562301A1 (fr) Méthode de configuration des puits d'eau
DE3541013A1 (de) Verfahren zum dimensionieren von grundwasserbrunnen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB IT LI NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960203