WO2007094698A1 - Capteur de position inductif - Google Patents

Capteur de position inductif Download PDF

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Publication number
WO2007094698A1
WO2007094698A1 PCT/RU2006/000055 RU2006000055W WO2007094698A1 WO 2007094698 A1 WO2007094698 A1 WO 2007094698A1 RU 2006000055 W RU2006000055 W RU 2006000055W WO 2007094698 A1 WO2007094698 A1 WO 2007094698A1
Authority
WO
WIPO (PCT)
Prior art keywords
output
input
receiving unit
well
sensor
Prior art date
Application number
PCT/RU2006/000055
Other languages
English (en)
Russian (ru)
Inventor
Oleg Viktorovich Perekrest
Valerij Vasil'evich Serebryanskij
Original Assignee
Zakrytoe Akcionernoe Obschestvo 'novosibirskoe Opytnokonstruktorskoe Byuro Geofizicheskogo Priborostroenia'
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 Zakrytoe Akcionernoe Obschestvo 'novosibirskoe Opytnokonstruktorskoe Byuro Geofizicheskogo Priborostroenia' filed Critical Zakrytoe Akcionernoe Obschestvo 'novosibirskoe Opytnokonstruktorskoe Byuro Geofizicheskogo Priborostroenia'
Priority to PCT/RU2006/000055 priority Critical patent/WO2007094698A1/fr
Publication of WO2007094698A1 publication Critical patent/WO2007094698A1/fr

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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
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature

Definitions

  • the invention relates to the field of the oil and gas industry, in particular to the oil and gas equipment necessary for the operation of wells, and can be used when lowering instruments or tools into the well.
  • Known induction position indicator designed to control the passage of the scraper through the wellhead during its cleaning from paraffin deposits, including an inductor located in the section of the pipe at the wellhead, and a receiving unit, the input of which is connected to the inductor, and the output is connected to an actuator, that controls the operation of the engine moving the scraper in the well (see Technical Data Sheet for the product “Induction Position Indicator - SPI-01”, manufactured by Hefteav NPO tomatika ", Bugulma, 1992).
  • the main disadvantages of the known device is its low technical and operational characteristics.
  • the senor when inserting the device into the pipe, the sensor is in direct contact with the aggressive environment inside the well, and, therefore, requires the use of additional measures of protection, in particular from corrosion. In addition, it is necessary to develop a modification of the design of the embedded sensor for each standard size of the well pipe.
  • an induction position sensor described in a device for lowering instruments into a well (see AS USSR N ° 1640387, class E21B 47/00, 1991), including an inductor located outside the pipe at the wellhead, and a receiving unit, the input of which is connected to the inductor, and the output is connected to an actuator that controls the operation of the engine moving the device in the well.
  • a magnetic washer is installed inside the pipe covered by the inductor, which when lifting the device from the well interacts with the inductor and a signal is generated to stop the lifting of the cable with the device and the inclusion of light and sound alarms.
  • the main disadvantage of the device is the need for special refinement of the wellhead associated with the installation of a magnetic washer.
  • it is required to use a pipe made of a material that does not have magnetic properties, because otherwise, the effect on the magnetic coil will be greatly weakened, which means that there is a possibility that the lifting mechanism will not operate.
  • the basis of this invention is the task of eliminating this drawback, namely the creation of a simple and reliable device that does not require completion of the wellhead.
  • the specified task in the induction position sensor including an inductor located outside the pipe at the wellhead, and a receiving unit, the first input of which is connected to the inductance coil, and the output is connected to an actuator that controls the operation of the engine moving the device in the well, an additional inductor installed on the outside of the pipe coaxially with the main coil at a distance of not less than the length of the sensor the lowering device, and is connected to the second input of the receiving unit, while the receiving unit itself is made in the form of an input differential amplifier, the output of which is connected to the first input of the synchronous detector, and its second input is connected to the output of the reference generator, which in turn is connected to the inductors sensor, and the output of the synchronous detector through a low-pass filter is connected to the output of the receiving unit.
  • Figure 1 presents figures illustrating the situation when the device when rising from the well to be: Ia - outside the zone of the sensor coils; 16 - in the area of the lower coil of the sensor.
  • FIG. 2. presents an electrical block diagram of the inventive device.
  • the inventive sensor is presented in Fig.1,2, which include: wellhead 1; cable 2 for lowering the device 3 into the well; sensor coils 4 and 5. Coils 4 and 5 are included in the bridge circuit as bridge elements together with resistors 6.
  • the bridge is connected to the reference generator 7 via a matching transformer 8. Coils 7 are connected to the input of the differential amplifier 9, the output of which is connected with the first input of the synchronous detector 10, the second input of which is connected to the output of the reference generator 7, and the output of the synchronous detector 10 through the low-pass filter 11 is connected to the output of the receiving unit 12 for controlling the trigger mechanism.
  • Fig.1,2 which include: wellhead 1; cable 2 for lowering the device 3 into the well; sensor coils 4 and 5.
  • Coils 4 and 5 are included in the bridge circuit as bridge elements together with resistors 6.
  • the bridge is connected to the reference generator 7 via a matching transformer 8.
  • Coils 7 are connected to the input of the differential amplifier 9, the output of which is connected with the first input of the synchronous detector 10, the second input
  • the inventive device operates as follows.
  • the reference signal from the generator 7 through the matching transformer 8 is fed through the resistors 6 to the coils 4 and 5.
  • the voltage from the coils 4 and 5 is fed to the input of the differential amplifier 9 and after amplification of the differential signal from the coils 4 and 5 is fed to the input of the synchronous detector 10, the second input which is connected to the generator 7 of the reference signal. If the voltage difference of the coils 4 and 5 is equal to zero (i.e., the output signal from the output of the amplifier 9 is equal to zero), the constant component of the output signal of the synchronous detector 10 will also be equal to zero.
  • the drive of the mechanism carries out its work according to the signal from the output of the inventive sensor. So, when a signal appears corresponding to the passage of the device 3 through the lower coil 5, the braking mechanism of the lifting mechanism of the device 3 begins, which continues until a signal is received from the upper coil 4, at which the phase of the output signal of the block 12 changes and the cable stops completely 2. As external interference is exerted on the sensor coils the same effect, the sensor only begins to respond to the presence of a metal object in the field of action of one of the coils, thereby achieving its high noise immunity.
  • the inventive device was made in the form of a prototype.
  • the presented version of the device implementation scheme fully confirmed its main advantages over the prototype.
  • the inventive device allows with high reliability and noise immunity to control the mechanism for lifting devices and tools from the well.

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

La présente invention relève du domaine de l'industrie du gaz et du pétrole, se rapporte précisément à un équipement pour le pétrole et le gaz nécessaire à l'exploitation de puits de forage, et peut servir lors de la descente d'instruments ou d'outils dans un puits. L'invention a trait à un capteur de position inductif, qui comprend une bobine d'induction disposée à l'extérieur d'un tube à l'entrée du puits, et une unité de réception, dont la première entrée est reliée à la bobine d'induction et la sortie est reliée à un dispositif d'actionnement qui commande le fonctionnement d'un moteur conçu pour déplacer un instrument dans le puits. Le caractère novateur de l'invention réside dans le fait que le capteur comporte une bobine d'induction supplémentaire, qui est placée à l'extérieur du tube, de manière coaxiale avec la bobine principale, à une distance de cette dernière égale ou supérieure à la longueur de l'engin descendu dans le puits, et est reliée à la seconde entrée de l'unité de réception. Ladite unité de réception se présente sous la forme d'un amplificateur différentiel d'entrée, dont la sortie est reliée à la première entrée d'un détecteur synchrone, et dont la seconde entrée est reliée à la sortie d'un générateur de référence qui est lui-même relié aux bobines d'induction du capteur, la sortie du détecteur synchrone étant reliée, par l'intermédiaire d'un filtre passe-bas, à la sortie de l'unité de réception.
PCT/RU2006/000055 2006-02-13 2006-02-13 Capteur de position inductif WO2007094698A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2006/000055 WO2007094698A1 (fr) 2006-02-13 2006-02-13 Capteur de position inductif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2006/000055 WO2007094698A1 (fr) 2006-02-13 2006-02-13 Capteur de position inductif

Publications (1)

Publication Number Publication Date
WO2007094698A1 true WO2007094698A1 (fr) 2007-08-23

Family

ID=38371792

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2006/000055 WO2007094698A1 (fr) 2006-02-13 2006-02-13 Capteur de position inductif

Country Status (1)

Country Link
WO (1) WO2007094698A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU427365A1 (ru) * 1972-03-27 1974-05-05 А. Г. Юшковский, В. В. Мусатов , С. П. Кахановска Чел бинский ордена Ленина трубопрокатный завод Индукционный датчик положения
US4560929A (en) * 1983-04-15 1985-12-24 International Business Machines Corporation Position detector apparatus and method utilizing damped oscillations
SU1640387A1 (ru) * 1989-04-14 1991-04-07 Всесоюзный нефтяной научно-исследовательский институт по технике безопасности Устройство дл спуска приборов в скважину
RU40648U1 (ru) * 2004-05-19 2004-09-20 Закрытое акционерное общество "Новосибирское опытно-конструкторское бюро геофизического приборостроения" Датчик положения индукционный

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU427365A1 (ru) * 1972-03-27 1974-05-05 А. Г. Юшковский, В. В. Мусатов , С. П. Кахановска Чел бинский ордена Ленина трубопрокатный завод Индукционный датчик положения
US4560929A (en) * 1983-04-15 1985-12-24 International Business Machines Corporation Position detector apparatus and method utilizing damped oscillations
SU1640387A1 (ru) * 1989-04-14 1991-04-07 Всесоюзный нефтяной научно-исследовательский институт по технике безопасности Устройство дл спуска приборов в скважину
RU40648U1 (ru) * 2004-05-19 2004-09-20 Закрытое акционерное общество "Новосибирское опытно-конструкторское бюро геофизического приборостроения" Датчик положения индукционный

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