EP0048342B1 - Procédé et dispositif pour fournir un fluide sous pression qui est pompé sous une pression variable - Google Patents

Procédé et dispositif pour fournir un fluide sous pression qui est pompé sous une pression variable Download PDF

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Publication number
EP0048342B1
EP0048342B1 EP81106473A EP81106473A EP0048342B1 EP 0048342 B1 EP0048342 B1 EP 0048342B1 EP 81106473 A EP81106473 A EP 81106473A EP 81106473 A EP81106473 A EP 81106473A EP 0048342 B1 EP0048342 B1 EP 0048342B1
Authority
EP
European Patent Office
Prior art keywords
pressure
value
time interval
fact
medium
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
Application number
EP81106473A
Other languages
German (de)
English (en)
Other versions
EP0048342A3 (en
EP0048342A2 (fr
Inventor
Hans Heimgartner
Karl Wirz
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.)
Hany & Cie Ag
HANY AND CIE AG
Original Assignee
Hany & Cie Ag
HANY AND CIE AG
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 Hany & Cie Ag, HANY AND CIE AG filed Critical Hany & Cie Ag
Priority to AT81106473T priority Critical patent/ATE16301T1/de
Publication of EP0048342A2 publication Critical patent/EP0048342A2/fr
Publication of EP0048342A3 publication Critical patent/EP0048342A3/de
Application granted granted Critical
Publication of EP0048342B1 publication Critical patent/EP0048342B1/fr
Expired 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
    • E21B47/00—Survey of boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/001—Improving soil or rock, e.g. by freezing; Injections
    • 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
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/138—Plastering the borehole wall; Injecting into the formation
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity

Definitions

  • the present invention relates to a method and a device for dispensing a pressure medium at at least one consumer point with a pressure not exceeding a desired value according to the preamble of claim 1 and claim 7, respectively.
  • a device for injecting an injection material into several boreholes in which a flow control valve and a measuring device for measuring the pressure downstream of this control valve are arranged in the outlet of a distribution chamber which is connected to a pump device is.
  • the measured value signals are fed to a control unit, on which the pressure measured in the outgoing lines is displayed.
  • the control unit generates control signals for the flow control valves based on the received measured value signals.
  • the pump device consisting of piston pumps now conveys the injection material with rapidly changing pressures. These pressure fluctuations are probably compensated somewhat by the distribution chamber, but the pressure of the injection material flowing through the pressure measuring devices is still subject to considerable fluctuations.
  • the present invention is based on the object of creating a method and a device of the type mentioned at the outset, which makes it possible to ensure at all times, even when the pressure of the pressure medium conveyed by the pump device changes rapidly, that the pressure of the consumer point supplied media never exceeds a maximum permissible value.
  • the measured value signals supplied by the pressure measuring device change continuously in accordance with the pressure curve in the pressure medium. For this reason, the measured value signals cannot be used directly to generate control signals for the pump device.
  • a pressure quantity representative of this time period is obtained.
  • an actual variable is then generated which is used for the subsequent actual value / setpoint comparison.
  • the actual size is preferably derived in each case from the highest pressure value determined for a time period and the actual size determined in the previous time period.
  • the pressure of this pressure medium is advantageously measured in the area of the consumer point.
  • FIG. 1 schematically shows a device for supplying an injection medium to an injection site 2 lying in a borehole 1.
  • the injection material is processed in a mixer 3 and fed to a storage container 4 provided with an agitator.
  • the injection medium is conveyed from this storage container 4 by means of a pump device 5 via a feed line 6 to the injection site 2.
  • the injection medium emerging from the outlet 7 of the feed line 6 is pressed into the material surrounding the borehole 1 in a known manner.
  • the pump device 5. has a delivery piston 8 which is moved back and forth in the direction of arrow A by means of a controllable hydraulic drive 9.
  • a delivery piston 8 which is moved back and forth in the direction of arrow A by means of a controllable hydraulic drive 9.
  • the injection medium is conveyed through the feed line 6 with rapidly changing pressures.
  • the injection site 2 is sealed in a known manner by means of a packer 10. Seen from the injection point 2, behind the packer 10, there is a pressure measuring device 11 in the feed line 6, which has a measurement transducer 12 that is in flow connection with the inside of the feed line 6. With regard to the structure and mode of operation of the pressure measuring device 11, reference is made to the European patent application No. 81 106472.4 (EP-A-0047878), which was simultaneously filed with the applicant.
  • the electrical measured value signals generated by the measurement transducer 12 and corresponding to the pressure in the feed line 6 are fed via a signal line 13 to a control and display unit 14, in which the to be described, these measured value signals are processed.
  • the control and display unit 14 is provided with a line recorder and a display unit 16. In the control and display unit 14, control signals are also generated in a manner to be described, which are fed via a signal line 17 to an actuator 18, which effects a regulation of the delivery rate and the pressure of the pump device 5 in a manner known per se.
  • FIG. 2 shows the device for processing the measured value signals and for generating control signals in the form of a block diagram.
  • the measurement transducer 12 is connected to a supply device 19 for a two-wire transducer.
  • the measured value signals supplied by the measured value converter -12 via the signal line 13 reach a signal evaluation unit 21 via a measuring amplifier and signal converter 20.
  • This signal evaluation unit 21 is connected on the output side to the line recorder 15 and the display unit 16 and on the other hand to a preamplifier 22.
  • a controller unit 23 is connected to this preamplifier 22. Via the preamplifier 22, the controller unit 23 is further connected to a setpoint input part 24. The output of the controller unit 23 is connected to the actuator 18 via the signal line 17.
  • the comparison value which is used for the derivation of the actual quantity corresponds to the actual quantity which was determined in the manner described for the previously examined time period.
  • the actual value derived in each case can correspond, for example, to the determined highest pressure value or the comparison value, depending on which of these values is larger. However, it is also conceivable for an actual variable to be formed which corresponds to the average of the highest pressure value and the comparison value.
  • the signal evaluation unit 21 determines on the basis of a comparison of the newly determined actual size and the previously obtained actual size that a pressure change has occurred in the injection medium, the signal evaluation unit 21 monitors this pressure change during a certain period of time in order to be able to determine whether this pressure change has actually occurred or only is due to a short-term influencing factor.
  • the corresponding actual variable is fed from the signal evaluation unit 21 to the controller unit 23 after amplification in the preamplifier 22.
  • the actual variable generated by the signal evaluation unit 21 further serves for registration and display of the pressure by the line recorder 15 and the display unit 16.
  • the controller part 23 which operates as a 3-point controller, a comparison is made of the actual variable obtained from the signal evaluation unit 21 with a target variable which has been entered in the target value input part 24 and has been amplified in the preamplifier 22.
  • the control part 23 On the basis of this actual value / target value comparison, the control part 23 generates control signals in a manner known per se, which are fed to the actuator 18 via the signal line 17. The latter now acts on the pump device 5 in a known manner in the sense of regulating the pressure and the delivery rate.
  • the setpoint value entered by means of the setpoint input part 24, which corresponds to the maximum permissible pressure of the injection medium at the injection site, can be a constant value or change according to a predetermined, arbitrary course of time.
  • the pump device is regulated in a manner similar to that described. It goes without saying that the pump device 5 can also be designed differently than shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • Soil Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Measuring Fluid Pressure (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (13)

1. Procédé pour fournir un fluide sous pression, de préférence un milieu d'injection, à au moins un endroit de consommation, de préférence à un endroit d'injection, sous une pression ne dépassant pas une valeur de référence, ce procédé comprenant le pompage du milieu pressurisé par un dispositif de pompage ajustable sous une pression variable, et la génération de signaux de mesure correspondant à la pression momentanée du milieu pressurisé, caractérisé en ce que la valeur de la pression maximale qui s'est produite au cours d'un intervalle de temps prédéterminé, est déterminée sur la base des signaux de valeurs mesurées dans ledit intervalle, qu'une valeur actuelle est dérivée à partir de cette valeur de pression .et d'une valeur de comparaison qui est obtenue à partir d'au moins une valeur de pression maximale pendant un intervalle précédent, déterminée comme décrit ci-dessus, et que des signaux de commande pour le dispositif de pompage sont engendrés sur la base d'une comparaison des valeurs actuelles avec une grandeur de référence.
2. Procédé selon la revendication 1, caractérisé en ce que la valeur de comparaison correspond à la valeur actuelle déterminée au cours de l'intervalle précédent.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la valeur de comparaison correspond à la valeur de pression maximale qui s'est produite pendant l'intervalle précédent.
4. Procédé selon l'une des revendications 1-3, caractérisé en ce que la valeur actuelle déterminée au cours de tous les intervalles successifs, est valable pendant chaque intervalle respectif suivant.
5. Procédé selon l'une des revendications 1-4, caractérisé en ce que la pression et le débit du dispositif de pompage sont réglés au moyen des signaux de commande.
6. Procédé selon l'une des revendications 1-5, caractérisé en ce que la pression du milieu pressurisé est mesurée dans la région de l'endroit de consommation.
7. Dispositif pour fournir un milieu sous pression, de préférence un milieu d'injection, à au moins un endroit de consommation, de préférence un endroit d'injection, sous une pression ne dépassant pas une valeur de référence, comprenant un dispositif de pompage (5) pompant le milieu avec une pression variable, et un dispositif de mesure de pression (11) engendrant des signaux de mesure correspondant à la pression momentanée du milieu pressurisé, ce dispositif de mesure étant relié à un dispositif de traitement de signaux (14) traitant les signaux de valeurs mesurées, caractérisé en ce que le dispositif de traitement de signaux comprend une section d'évaluation de signaux (21) qui détermine, sur la base des signaux de valeurs mesurées reçus aux cours d'un intervalle de temps, la valeur de pression maximale apparue pendant cet intervalle, et qui produit une grandeur actuelle à partir de cette valeur de pression et d'une valeur comparative déterminée par la section d'évaluation de signaux (21) sur la base d'au moins une valeur de pression maximale, déterminée de la façon décrite et apparue au cours d'un intervalle précédent, et que la section d'évaluation de signaux (21) est suivie par une section de régulation (23) produisant des signaux de commande pour le dispositif de pompage (5) sur là base d'une comparaison de la grandeur actuelle avec une grandeur de référence introduite.
8. Dispositif selon la revendication 7, caractérisé en ce que la section d'évaluation des signaux (21) utilise une valeur de comparaison correspondant à une valeur actuelle déterminée au cours de l'intervalle de temps précédent.
9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que la section d'évaluation des signaux (21) utilise une valeur de comparaison correspondant à la valeur de pression maximale apparue au cours de l'intervalle précédent.
10. Dispositif selon l'une des revendications 7-9, caractérisé en ce que la section de régulation (23) utilise au cours de chaque intervalle, la valeur actuelle déterminée pendant l'intervalle précédent.
11. Dispositif selon l'une des revendications 7-10, caractérisé en ce que la section de régulation (23) est reliée à un organe de commande (18) pour régler la pression et le débit du dispositif de pompage (5).
12. Dispositif selon l'une des revendications 7-11, caractérisé en ce que le dispositif de mesure de pression (11) comprend un transducteur de grandeurs mesurées (12) disposé dans la région de l'endroit de consommation (2), le transducteur étant en communication de pression avec l'intérieur de la conduite d'amenée (6) du milieu pressurisé.
EP81106473A 1980-09-16 1981-08-20 Procédé et dispositif pour fournir un fluide sous pression qui est pompé sous une pression variable Expired EP0048342B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81106473T ATE16301T1 (de) 1980-09-16 1981-08-20 Verfahren und vorrichtung zum abgeben eines druckmediums, das von einer pumpeneinrichtung mit sich aenderndem druck gefoerdert wird.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6924/80 1980-09-16
CH6924/80A CH648423A5 (de) 1980-09-16 1980-09-16 Verfahren und vorrichtung zum abgeben eines druckmediums von einer pumpeneinrichtung an eine verbraucherstelle mit einem einen sollwert nicht uebersteigenden druck.

Publications (3)

Publication Number Publication Date
EP0048342A2 EP0048342A2 (fr) 1982-03-31
EP0048342A3 EP0048342A3 (en) 1983-11-23
EP0048342B1 true EP0048342B1 (fr) 1985-10-30

Family

ID=4317197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106473A Expired EP0048342B1 (fr) 1980-09-16 1981-08-20 Procédé et dispositif pour fournir un fluide sous pression qui est pompé sous une pression variable

Country Status (4)

Country Link
EP (1) EP0048342B1 (fr)
AT (1) ATE16301T1 (fr)
CH (1) CH648423A5 (fr)
DE (1) DE3172773D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007556A2 (fr) 2010-07-15 2012-01-19 Geowatt Ag Procédé pour remblayer un trou de forage et système correspondant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084885A5 (fr) * 1970-03-19 1971-12-17 Atlas Copco Ab
US3665945A (en) * 1971-02-03 1972-05-30 M & J Valve Co Valve control system and method
GB1449852A (en) * 1973-08-10 1976-09-15 Coppen J D Control of fluid pumps
SE407604B (sv) * 1975-04-11 1979-04-02 Cavallin Christer Injekteringsanordning
US4161782A (en) * 1977-12-23 1979-07-17 Otis Engineering Corporation Microprocessor computerized pressure/temperature/time down-hole recorder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007556A2 (fr) 2010-07-15 2012-01-19 Geowatt Ag Procédé pour remblayer un trou de forage et système correspondant
DE102010036411A1 (de) * 2010-07-15 2012-01-19 Geowatt Ag Verfahren zur Hinterfüllung eines Bohrlochs und Anordnung dafür
DE102010036411B4 (de) * 2010-07-15 2012-03-22 Geowatt Ag Verfahren zur Hinterfüllung eines Bohrlochs und Anordnung dafür

Also Published As

Publication number Publication date
EP0048342A3 (en) 1983-11-23
EP0048342A2 (fr) 1982-03-31
ATE16301T1 (de) 1985-11-15
DE3172773D1 (en) 1985-12-05
CH648423A5 (de) 1985-03-15

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