WO2007061333A1 - Instrument acoustique de fond de puits - Google Patents

Instrument acoustique de fond de puits Download PDF

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Publication number
WO2007061333A1
WO2007061333A1 PCT/RU2006/000244 RU2006000244W WO2007061333A1 WO 2007061333 A1 WO2007061333 A1 WO 2007061333A1 RU 2006000244 W RU2006000244 W RU 2006000244W WO 2007061333 A1 WO2007061333 A1 WO 2007061333A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
piezoelectric transducers
acoustic
power
piezoelectric
Prior art date
Application number
PCT/RU2006/000244
Other languages
English (en)
Russian (ru)
Inventor
Isaak Aronovich Orentlikherman
Ernest Isaakovich Orentlikherman
Anatoly Gennadievich Chaplygin
Nikolai Alexandrovich Maximenkov
Yury Ivanovich Burlyakov
Original Assignee
Isaak Aronovich Orentlikherman
Orentlikherman Ernest Isaakovi
Anatoly Gennadievich Chaplygin
Maximenkov Nikolai Alexandrovi
Yury Ivanovich Burlyakov
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 Isaak Aronovich Orentlikherman, Orentlikherman Ernest Isaakovi, Anatoly Gennadievich Chaplygin, Maximenkov Nikolai Alexandrovi, Yury Ivanovich Burlyakov filed Critical Isaak Aronovich Orentlikherman
Publication of WO2007061333A1 publication Critical patent/WO2007061333A1/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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/003—Vibrating earth formations

Definitions

  • the invention relates to devices for acoustic impact on reservoirs, perforation zones to increase the debit of oil and gas wells and conduct repair and insulation works.
  • a well-known acoustic borehole device (patent RU Na 2152513), comprising an acoustic emitter and an electronics unit with the possibility of continuous monitoring and adjustment of acoustic exposure modes.
  • a well-known acoustic borehole device (patent RU Ne 2260688), containing a sealed enclosure with an electronics unit and piezoelectric transducers placed in it, the electronics unit is equipped with a master oscillator, a power amplifier, an overvoltage protection module, a current transformer, while the generator generates signals with a varying frequency in the range determined during the operation of the device in the well at the minimum and maximum resonant frequencies of the piezoelectric transducers that make up the device. (patent RU Ne 2260688), containing a sealed enclosure with an electronics unit and piezoelectric transducers placed in it, the electronics unit is equipped with a master oscillator, a power amplifier, an overvoltage protection module, a current transformer, while the generator generates signals with a varying frequency in the range determined during the operation of the device in the well at the minimum and maximum resonant frequencies of the piezoelectric transducers that make up the device. (patent RU Ne 2260688), containing a sealed
  • the disadvantage of the device with the indicated method of frequency tuning is the loss of the output radiated power during the transition from one resonant frequency to another, when none of the piezoelectric transducers does not work in resonance.
  • Another disadvantage is the use of industrial frequency for powering the downhole tool, which leads to a complication of the design, reduced reliability and poor performance of the device, due to an increase in the mass-dimensional characteristics of the device,
  • SUBSTITUTE SHEET (RULE 26) application in the device of additional chokes, rectifying elements, capacitors, etc.
  • acoustic downhole emitter (patent RU Na 2193651, 11/23/2001), containing the upper head with
  • a contact device for a cable lug a sealed enclosure with an electronics unit and piezoelectric transducers from longitudinally polarized piezoceramic washers placed in it, several washers are made with segments electrically isolated from the rest of the washers, acting as built-in feedback sensors.
  • the disadvantage of the emitter is the deviation from resonant frequencies under the influence of well conditions (external pressure, elevated temperature, vibration, etc.) and due to this loss of acoustic power. Loss of electrical power due to the location of the power source in the ground unit and losses in the cable when transmitting a high-frequency signal from the ground
  • An object of the invention is to increase the acoustic power of the downhole tool, increase reliability and ensure the use of different frequencies simultaneously with one descent.
  • the technical result of the invention is an increase in acoustic power due to:
  • SUBSTITUTE SHEET (RULE 26) - automatic frequency adjustment and phase correction to compensate for the spread of the resonant frequencies of the piezoelectric transducers in each section.
  • the acoustic downhole device is powered from a direct current source and consists of several independent sections operating at their own resonant frequency. Each section is housed in a sealed enclosure and contains a service power supply, 15 filter modules, a protection module, a master oscillator, an AFC module and a phase corrector to compensate for the spread of the resonant frequencies of piezoelectric transducers, a power module, a current transformer, an adder, a feedback sensor, at least two previously selected according to the resonant frequency of the piezoelectric transducers, each of the piezoelectric transducers 0 has its own control channel, consisting of a feedback sensor, phase corrector, power module, current ransformatora.
  • an acoustic borehole device may contain three sections operating simultaneously at different resonant frequencies, for example, 15 ⁇ 10%, 20 ⁇ 10%, 35 ⁇ 10% kHz, or at one resonant frequency.
  • a remote sensor that measures acoustic vibrations can be used as a feedback sensor.
  • Figure 1 presents a diagram of the design of the device
  • FIG. 2 is a block diagram of a section
  • FIG. 3 shows a graph of the dependence of the acoustic power P ao on the supplied frequency during operation of the section without phase correction
  • FIG. 4 is a graph of the dependence of the acoustic power P ac on the supplied frequency during operation of the section with phase correction
  • Acoustic borehole device (Fig. 1) consists of one or several sections made in hollow sealed metal cylindrical cases 3, hermetically connected to each other 4, upper
  • the sections are placed in sealed enclosures, interconnected by means of a sealed docking unit 4, which provides protection for the entire device in case of failure of any section, as well as the ability to
  • Piezoelectric transducers 9 (at least two pieces) and electronic modules 6,7,8 are placed in the case of section 3. Piezoelectric transducers are located in one plane perpendicular to the vertical axis of the section.
  • the electronic modules are made in the form of functionally complete blocks for the quick replacement of the spare parts in necessary cases, which significantly reduces the repair time.
  • Piezoelectric transducers consist of longitudinally polarized, electrically connected in parallel piezoceramic washers and include at least two piezoceramic washers with segments electrically isolated from the rest of the surface, acting as built-in sensors for monitoring the operation and tuning the parameters of the piezoelectric transducer.
  • the piezoelectric transducer has a finished design, with pre-tensioned washers using a threaded rod at both ends and pads.
  • the selected segment on the piezoelectric transducer washer is used; in the absence of the selected segments, an external sensor can be used that measures the acoustic vibrations emitted by the piezoelectric transducer.
  • Electronic modules 6,7,8 are placed in section 3 in such a way (distributed over the entire volume of the section housing) in order to provide better cooling of the power elements and reduce the length of the section, which leads to an increase in the specific acoustic power of the device as a whole.
  • Electronic modules 6,7,8 perform the function of automatic tuning to the resonant frequency of the piezoelectric transducer, with automatic correction of the frequency and phase of other piezoelectric transducers in this section.
  • Electronic modules 6,7,8 include a service power supply 12, a filter module 10, a protection module 11, a master oscillator 13, an AFC module 14 and a phase corrector 15, to compensate for the spread of the resonant frequencies of the piezoelectric transducers, a power module 16, a current transformer 17, an adder 18 feedback sensor 19.
  • the control channel consisting of the feedback sensor 19, phase corrector 15, power module 16, current transformer 17 serves to operate a separate piezoelectric transducer.
  • SUBSTITUTE SHEET (RULE 26)
  • the feedback sensors 19 of the piezoelectric transducers are independently connected to the phase correction modules 15 (Fig. 2).
  • the signal from each sensor is processed in the phase correction modules in terms of amplitude and phase of the piezoelectric transducers taken during operation 9.
  • the stabilized DC voltage is supplied through the geophysical cable 1 (Fig 1.) to the filter module 10 (Fig 2.).
  • the filter module has a large constant time component, in order to reduce high voltage ripple and filter high-frequency frequencies from the service power supply. From the filter module 10, the supply voltage is distributed to the service power supply 12 and to the protection module 11. From the protection module 11, the voltage is supplied to the power modules 16.
  • the service power supply 12 provides the operation of low-voltage elements included in all electronic modules.
  • Protection module 11 is designed to protect power elements from overvoltage during a sharp disconnection of the load and an increased value of the consumed current, as well as during a short circuit in power circuits and the load.
  • Power modules 16 form a powerful high-frequency signal
  • AFC module 14 In the AFC module, a piezo transducer is captured at the lower resonant frequency.
  • the error signal from the AFC module 14 is fed to the master oscillator 13, where stabilization (automatic frequency adjustment) of the master oscillator occurs.
  • phase correction module 15 the signal has a maximum phase shift for all piezoelectric transducers in order to determine and capture the AFC of the lowest frequency from the adder 18. After the frequency is captured, the phase corrector 15 eliminates the 5 error for the piezoelectric transducers 9 having a higher frequency.
  • the work of the phase corrector 15 is based on dynamic tracking and correction of the error between the captured lowest frequency of the master oscillator 13 and the increased resonant frequency of the piezoelectric transducers 9 along the pulse front from the feedback sensors 19. In this case, the time interval, vo in which the error correction occurs, is selected depending on applied design of piezoelectric transducers.
  • the frequency is reduced for piezoelectric transducers 9 with an increased resonant frequency in an insignificant range of resonant frequencies.
  • the feedback sensors 19 determine
  • the phase corrector 15 equalizes the signals arriving at the power module 16, thereby achieving uniform distribution of the signal across
  • the body parts of the borehole acoustic emitter are made of material that ensures the operation of the device in a specific environment.
  • Piezoelectric transducer washers are made, for example, from PKR-78 ceramics.
  • Electronic modules are made on common industrial elements.
  • a geophysical cable is used, for example, KP-60-180-1 s

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)
  • Geophysics And Detection Of Objects (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

Selon l'invention, cet instrument acoustique de fond de puits fait partie des dispositifs destinés à un traitement acoustique des couches de production et des zones de perforation, destiné à augmenter le débit de puits de gaz ou de pétrole et à permettre d'effectuer des travaux de réparation et d'isolation. L'invention permet d'augmenter la puissance acoustique grâce à la commande automatique de fréquence et à la correction de phase, destinées à la compensation de l'étalement des fréquences de résonance des transducteurs piézo-électriques dans chaque section. L'instrument acoustique de fond de puits est alimenté par une source de courant continu et est constitué de plusieurs sections indépendantes fonctionnant chacune à une fréquence de résonance qui lui est propre. Chaque section est montée dans un boîtier étanche et comprend une source d'alimentation de service, un module de filtre, un module de protection, un maître-oscillateur, un module de commande automatique de fréquence et un correcteur de phase, destiné à la compensation de l'étalement des fréquences de résonance des transducteurs piézo-électriques, un module de force, un transformateur de courant, un additionneur, un détecteur de rétroaction, au moins deux transducteurs piézo-électriques présélectionnés en fonction de la fréquence de résonance, chaque transducteur piézo-électrique possédant son propre canal de commande constitué d'un détecteur de rétroaction, d'un correcteur de phase, d'un module de force et d'un transformateur de courant.
PCT/RU2006/000244 2005-11-28 2006-05-17 Instrument acoustique de fond de puits WO2007061333A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2005136751/03A RU2301329C2 (ru) 2005-11-28 2005-11-28 Прибор акустический скважинный
RU2005136751 2005-11-28

Publications (1)

Publication Number Publication Date
WO2007061333A1 true WO2007061333A1 (fr) 2007-05-31

Family

ID=37862352

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2006/000244 WO2007061333A1 (fr) 2005-11-28 2006-05-17 Instrument acoustique de fond de puits

Country Status (3)

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EA (1) EA009245B1 (fr)
RU (1) RU2301329C2 (fr)
WO (1) WO2007061333A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8881807B1 (en) * 2014-03-18 2014-11-11 Well-Smart Technologies—Global, Inc Autonomous apparatus to restore and maintain well productivity and method of using the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578081A (en) * 1969-05-16 1971-05-11 Albert G Bodine Sonic method and apparatus for augmenting the flow of oil from oil bearing strata
EP0434493A1 (fr) * 1989-12-07 1991-06-26 ETAT FRANCAIS Représenté par le délÀ©gué général pour l'armement Procédé pour augmenter la puissance des transducteurs électro-acoustiques à basse fréquence et transducteurs correspondants
RU2140519C1 (ru) * 1998-03-11 1999-10-27 Подобед Виктор Сергеевич Устройство для акустического воздействия на нефтегазоносный пласт
RU2193651C2 (ru) * 2001-11-23 2002-11-27 Закрытое акционерное общество "ИНЕФ" Излучатель акустический скважинный
WO2003058028A1 (fr) * 2002-01-08 2003-07-17 Isaak Aronovich Orentlikherman Complexe emetteur de rayonnements pour puits de gaz et de petrole

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012947A1 (fr) * 1999-08-16 2001-02-22 Veniamin Viktorovich Dryagin Procede et dispositif pour retablir la permeabilite de l'espace adjacent aux puits d'une couche rentable
RU2260688C1 (ru) * 2004-01-14 2005-09-20 Корольков Александр Владимирович Прибор акустический скважинный

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578081A (en) * 1969-05-16 1971-05-11 Albert G Bodine Sonic method and apparatus for augmenting the flow of oil from oil bearing strata
EP0434493A1 (fr) * 1989-12-07 1991-06-26 ETAT FRANCAIS Représenté par le délÀ©gué général pour l'armement Procédé pour augmenter la puissance des transducteurs électro-acoustiques à basse fréquence et transducteurs correspondants
RU2140519C1 (ru) * 1998-03-11 1999-10-27 Подобед Виктор Сергеевич Устройство для акустического воздействия на нефтегазоносный пласт
RU2193651C2 (ru) * 2001-11-23 2002-11-27 Закрытое акционерное общество "ИНЕФ" Излучатель акустический скважинный
WO2003058028A1 (fr) * 2002-01-08 2003-07-17 Isaak Aronovich Orentlikherman Complexe emetteur de rayonnements pour puits de gaz et de petrole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8881807B1 (en) * 2014-03-18 2014-11-11 Well-Smart Technologies—Global, Inc Autonomous apparatus to restore and maintain well productivity and method of using the same

Also Published As

Publication number Publication date
EA009245B1 (ru) 2007-12-28
RU2005136751A (ru) 2007-02-10
RU2301329C2 (ru) 2007-06-20
EA200600798A1 (ru) 2007-06-29

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