WO2014046560A1 - Device for decolmatation of the critical area of exploitation and injection wells - Google Patents
Device for decolmatation of the critical area of exploitation and injection wells Download PDFInfo
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- WO2014046560A1 WO2014046560A1 PCT/RU2012/000768 RU2012000768W WO2014046560A1 WO 2014046560 A1 WO2014046560 A1 WO 2014046560A1 RU 2012000768 W RU2012000768 W RU 2012000768W WO 2014046560 A1 WO2014046560 A1 WO 2014046560A1
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- generator
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- downhole tool
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- 238000002347 injection Methods 0.000 title claims abstract description 5
- 239000007924 injection Substances 0.000 title claims abstract description 5
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000002604 ultrasonography Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000003001 depressive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- 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
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
Definitions
- the invention relates to the field of oil production, in particular to cleaning the bottom-hole zone using the energy of ultrasound.
- paraffin and asphaltene deposits on the pore walls of the reservoir must be removed, because the consequence of their accumulations is a decrease in the permeability of the bottom-hole zone, as a result of which the production rate of the wells decreases, and sometimes the operation of the wells completely stops.
- a known method and device for removing paraffin plugs from produced oil using ultrasonic waves comprising installing at least one ultrasonic vibrating device and a variable frequency generating device installed outside the well near the tubing.
- the device emits (mainly simultaneously) ultrasonic vibrations of three fixed frequencies in the range of 10 kHz - 2000 kHz.
- the oscillation of the first frequency causes fluctuations in the production pipes, so that the paraffin plugs are separated from the pipe walls.
- Oscillations of the second frequency break the bonds that hold the paraffin molecules together and, accordingly, break it down into small particles, and vibrations of the third frequency split long alkanes into molecules of shorter length.
- a known method of cleaning oil and water intake wells (patent RU N ° 2151273), based on the removal of colmatants by periodically exposing the borehole space with a field of elastic vibrations, including preliminary processing of geological, geophysical, hydrodynamic information about the well being operated and the dynamics of the main parameters during the operation of the wells in a given field, determining the impact mode, the impact on the selected productive intervals of the bottom-hole zone by a field of elastic vibrations with established parameters, the adjustment of the mode in the impact according to the results of monitoring the rate of removal of colmatants from the bottomhole zone, evaluating the effectiveness of the impact on the degree of productivity increment, changing the flow profiles and other operational parameters of the wells, characterized in that during preliminary processing of the dynamics of the main parameters during the operation of the wells of this field, the productivity is studied and analyzed , water cut, gas factor, bottomhole pressure and reservoir pressure during the life of the well, based on wells, for which the decrease in productivity is caused by the mudding of the bottom-hole zone of the productive
- a known method of acoustic impact on the bottom-hole zone of the reservoir including the impact on the borehole zone of the reservoir with an acoustic field, characterized in that, in order to increase the productivity of the reservoir by restoring the filtration properties of its bottom-hole zone, before the formation is treated, the filtration properties of the bottom-hole zone are measured, sections with reduced filtration properties are identified, and the formation is treated sequentially pointwise from top to bottom by repeated irradiation of sections of the bottom-hole zone with reduced filtration properties with an acoustic field with an intensity of at least 0.2 W / cm 2 and the irradiation was measured after each filtration properties, determine the dynamics of recovery and the results of measurements carried away Chiva intensity and time of exposure to the acoustic field until stabilization filtration properties.
- a known method for processing the bottom-hole zone of a well including the descent into the interval of perforation of a well on a tubing string of an assembly containing a packer, a paired sucker rod pump with a housing consisting of upper and lower bodies connected between each other with a perforated nozzle, a rod string with a plunger and an ultrasonic generator, isolation of the annulus by the packer above the perforation interval, the impact on the bottom-hole zone of the well by elastic vibrations ultrasonic frequencies in the medium of an active process fluid and acid solution, pumping out reaction products with simultaneous washing out of treatment products, exposure to the formation by ultrasound, creation of alternating fluid movement in the interval of perforation and weak depressive pulses, characterized in that a mechanical ultrasonic generator is used as an ultrasonic generator that is triggered when a liquid stream passes in it in one direction, and ultrasonic action is performed when Th fluid pump into the tubing string on the fourth part of the
- the solution to this problem in the present invention is achieved by placing in the downhole tool at least two converters of electromagnetic energy into mechanical energy, operating at different frequencies.
- the converters of electromagnetic energy into mechanical energy are located in the downhole tool sequentially in decreasing order of the resonant frequency, and the size of each of them is determined by the value of the resonant frequency, each of which differs from the previous one by an integer number of octaves.
- the cable connecting the electromagnetic pulse generator to the downhole tool is made coaxial with wave impedance, which is equal to the output impedance of the generator and the input resistance of the downhole tool.
- the device operates as follows (see Fig. 1).
- the signal of the corresponding frequency from the generator 10, equipped with a controller (not shown conditionally), is fed through a coaxial cable 8 to electromagnetic energy converters into mechanical 1.
- the generator controller (conditionally not shown) generates a signal of the required shape, which is harmonic with a step envelope.
- each of the converters 1 is tuned to a specific harmonic of the common signal.
- Converters of electromagnetic energy to mechanical 1 are located in the downhole tool 4 sequentially in decreasing order of the resonant frequency, and the size of each of them is determined by the magnitude of the resonant frequency.
- Coaxial cable 8 is made with a resistance corresponding to the output resistance of the generator 10 and the input resistance of the downhole tool 4, which allows you to maintain a given waveform.
- the proposed device with the smallest possible dimensions of the downhole tool can significantly increase the depth of effective processing of the bottomhole zone.
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Abstract
The device for the decolmatation of the critical area of exploitation and injection wells comprises a generator of electromagnetic pulses of resonant frequency (10), which is equipped with a controller (not depicted), and a coaxial cable (8) which connects the generator (10) to a downhole instrument (4), in which at least two converters for converting electromagnetic energy into mechanical energy (1) are arranged, said converters operating at different frequencies. Furthermore, the converters for converting electromagnetic energy into mechanical energy (1) are arranged in the downhole instrument (4) in series in order of decreasing resonant frequency, and the dimensions of each of said converters are determined by the magnitude of the resonant frequency, each of which differs from the previous one by an integer of octaves. Furthermore, the cable (8) which connects the generator of electromagnetic pulses (10) to the downhole instrument (4) is coaxial with a wave impedance which is equal to the output impedance of the generator (10) and the input impedance of the downhole instrument (4).
Description
Устройство для раскольматации призабойной зоны Bottom zone device
эксплуатационных и нагнетательных скважин production and injection wells
Изобретение относится к области нефтедобычи, в частности к очистке призабойной зоны с использованием энергии ультразвука. The invention relates to the field of oil production, in particular to cleaning the bottom-hole zone using the energy of ultrasound.
Для обеспечения эффективной эксплуатации скважин парафиновые и асфальтеновые отложения на стенках пор коллекторов необходимо удалять, т.к. следствием их скоплений является уменьшение проницаемости призабойной зоны, в результате чего дебит скважин снижается, а иногда и полностью прекращается эксплуатация скважин. To ensure efficient operation of wells, paraffin and asphaltene deposits on the pore walls of the reservoir must be removed, because the consequence of their accumulations is a decrease in the permeability of the bottom-hole zone, as a result of which the production rate of the wells decreases, and sometimes the operation of the wells completely stops.
Известно теоретическое обоснование способа акустического воздействия на призабойную зону с целью ее раскольматации (О. Л. Кузнецов, Э.М. Симкин, Дж. Чилингар «Физические основы вибрационного и акустического воздействия на нефтегазовые пласты» М., Мир, 2001 , с. 106 - 116), которое, однако, не содержит детального описания устройства для раскольматации призабойной зоны. There is a theoretical justification for the method of acoustic impact on the bottomhole zone with the aim of its relaxation (O. L. Kuznetsov, E. M. Simkin, J. Chilingar “Physical fundamentals of vibration and acoustic impact on oil and gas layers” M., Mir, 2001, p. 106 - 116), which, however, does not contain a detailed description of the device for raskolmatization of the bottomhole zone.
Известны способ и устройство для удаления парафиновых пробок из добываемой нефти с использованием ультразвуковых волн (патент US ° 7,264,056), включающий установку вблизи насосно-компрессорных труб по меньшей мере одного устройства генерирующего ультразвуковые колебания и устройство, генерирующее колебания переменной частоты, установленное вне скважины. Устройством испускаются (преимущественно одновременно) ультразвуковые колебания трех фиксированных частот в диапазоне 10 кГц - 2000 кГц. При этом колебание первой частоты вызывает колебания эксплуатационных труб, благодаря чему парафиновые пробки отделяются от стенок труб. Колебания второй частоты разрывают связи, удерживающие молекулы парафина вместе и, соответственно, расщепляют его на мелкие частицы, а колебания третей частоты расщепляют длинные алканы на молекулы меньшей длины. A known method and device for removing paraffin plugs from produced oil using ultrasonic waves (US Pat. No. 7,264,056), comprising installing at least one ultrasonic vibrating device and a variable frequency generating device installed outside the well near the tubing. The device emits (mainly simultaneously) ultrasonic vibrations of three fixed frequencies in the range of 10 kHz - 2000 kHz. In this case, the oscillation of the first frequency causes fluctuations in the production pipes, so that the paraffin plugs are separated from the pipe walls. Oscillations of the second frequency break the bonds that hold the paraffin molecules together and, accordingly, break it down into small particles, and vibrations of the third frequency split long alkanes into molecules of shorter length.
Известен способ очистки нефтедобывающих и водозаборных
скважин (патент RU N° 2151273), основанный на удалении кольматантов путем периодического воздействия на прискважинное пространство полем упругих колебаний, включающий предварительную обработку геологической, геофизической, гидродинамической информации об эксплуатируемой скважине и динамике основных параметров в процессе эксплуатации скважин данного месторождения, определение режима воздействия, воздействие на выбранные продуктивные интервалы призабойной зоны полем упругих колебаний с установленными параметрами, корректировку режимов воздействия по результатам контроля скорости удаления кольматантов из призабойной зоны, оценку эффективности проведенного воздействия по степени приращения продуктивности, изменению профилей притока и других эксплуатационных параметров скважин, отличающийся тем, что при предварительной обработке динамики основных параметров в процессе эксплуатации скважин данного месторождения изучают и анализируют продуктивность, обводненность, газовый фактор, забойное давление и пластовое давление за время эксплуатации скважины, на основе этого анализа отбирают скважины, для которых снижение продуктивности обусловлено кольматацией призабойной зоны продуктивных пластов при сохранении высокого пластового давления, и для каждого пласта в этих скважинах определяют режим воздействия, включающий интервалы воздействия, шаг воздействия, частоту и интенсивность упругих колебаний, очередность непрерывного или импульсного воздействия на различные интервалы, при этом по кривым динамики уменьшения продуктивности определяют очередность проведения воздействий в различных скважинах с учетом степени уменьшения их продуктивности, а по полученным данным оценки эффективности проведенного воздействия корректируют режим эксплуатации скважин. A known method of cleaning oil and water intake wells (patent RU N ° 2151273), based on the removal of colmatants by periodically exposing the borehole space with a field of elastic vibrations, including preliminary processing of geological, geophysical, hydrodynamic information about the well being operated and the dynamics of the main parameters during the operation of the wells in a given field, determining the impact mode, the impact on the selected productive intervals of the bottom-hole zone by a field of elastic vibrations with established parameters, the adjustment of the mode in the impact according to the results of monitoring the rate of removal of colmatants from the bottomhole zone, evaluating the effectiveness of the impact on the degree of productivity increment, changing the flow profiles and other operational parameters of the wells, characterized in that during preliminary processing of the dynamics of the main parameters during the operation of the wells of this field, the productivity is studied and analyzed , water cut, gas factor, bottomhole pressure and reservoir pressure during the life of the well, based on wells, for which the decrease in productivity is caused by the mudding of the bottom-hole zone of the productive strata while maintaining high reservoir pressure, and for each stratum in these wells, the treatment regime is determined, including the exposure intervals, the impact step, the frequency and intensity of elastic vibrations, the sequence of continuous or pulsed action at different intervals, while the curves of the dynamics of productivity decrease determine the sequence of actions in different wells x reduction according to the degree of their productivity and the data obtained evaluating the effectiveness of impact is corrected well operation mode.
Известен способ акустического воздействия на призабойную зону продуктивного пласта (патент RU N° 2026969), включающий воздействие на прискважинную зону пласта акустическим полем, отличающийся тем, что, с целью повышения продуктивности пласта за счет восстановления
фильтрационных свойств его призабойной зоны, до обработки пласта измеряют фильтрационные свойства призабойной зоны, выделяют участки с пониженными фильтрационными свойствами, а обработку пласта ведут последовательно поточечно в направлении сверху вниз многократным облучением участков призабойной зоны с пониженными фильтрационными свойствами акустическим полем с интенсивностью не менее 0,2 Вт/см2, причем после каждого облучения измеряют фильтрационные свойства, определяют динамику их восстановления и по результатам измерений увеличивают интенсивность и время воздействия акустическим полем до момента стабилизации фильтрационных свойств. A known method of acoustic impact on the bottom-hole zone of the reservoir (patent RU N ° 2026969), including the impact on the borehole zone of the reservoir with an acoustic field, characterized in that, in order to increase the productivity of the reservoir by restoring the filtration properties of its bottom-hole zone, before the formation is treated, the filtration properties of the bottom-hole zone are measured, sections with reduced filtration properties are identified, and the formation is treated sequentially pointwise from top to bottom by repeated irradiation of sections of the bottom-hole zone with reduced filtration properties with an acoustic field with an intensity of at least 0.2 W / cm 2 and the irradiation was measured after each filtration properties, determine the dynamics of recovery and the results of measurements carried away Chiva intensity and time of exposure to the acoustic field until stabilization filtration properties.
Известен способ (патент RU N° 2296215) обработки призабойной зоны скважины, использованный в качестве прототипа, включающий спуск в интервал перфорации скважины на колонне насосно-компрессорных труб компоновки, содержащей пакер, спаренный штанговый насос с корпусом, состоящим из верхнего и нижнего корпусов, соединенных между собой перфорированным патрубком, колонну штанг с плунжером и ультразвуковой генератор, разобщение пакером межтрубного пространства выше интервала перфорации, воздействие на призабойную зону скважины упругими колебаниями ультразвуковой частоты в среде активной технологической жидкости и раствора кислоты, откачку продуктов реакции с одновременным вымыванием продуктов обработки, воздействие на пласт ультразвуком, создание знакопеременного движения жидкости в интервале перфорации и слабых депрессионных импульсов, отличающийся тем, что в качестве ультразвукового генератора используют механический ультразвуковой генератор, срабатывающий при прохождении через него струи жидкости в одном направлении, а ультразвуковое воздействие выполняют при подаче жидкости насосом в колонну насосно-компрессорных труб на четвертой части цикла работы насоса. A known method (patent RU N ° 2296215) for processing the bottom-hole zone of a well, used as a prototype, including the descent into the interval of perforation of a well on a tubing string of an assembly containing a packer, a paired sucker rod pump with a housing consisting of upper and lower bodies connected between each other with a perforated nozzle, a rod string with a plunger and an ultrasonic generator, isolation of the annulus by the packer above the perforation interval, the impact on the bottom-hole zone of the well by elastic vibrations ultrasonic frequencies in the medium of an active process fluid and acid solution, pumping out reaction products with simultaneous washing out of treatment products, exposure to the formation by ultrasound, creation of alternating fluid movement in the interval of perforation and weak depressive pulses, characterized in that a mechanical ultrasonic generator is used as an ultrasonic generator that is triggered when a liquid stream passes in it in one direction, and ultrasonic action is performed when Th fluid pump into the tubing string on the fourth part of the pump cycle.
Известные способы и устройства имеют низкую эффективность раскольматации призабойной зоны эксплуатируемых скважин, сложны в изготовлении и эксплуатации.
Задачей, на решение которой направлено предлагаемое изобретение, является создание устройства, которое при минимально возможных габаритах скважинного аппарата позволят увеличить эффективность обработки призабойной зоны. Known methods and devices have low efficiency raskolmatization bottom-hole zone of operating wells, are difficult to manufacture and operate. The problem to which the invention is directed is to create a device that, with the smallest possible dimensions of the downhole apparatus, will increase the efficiency of processing the bottom-hole zone.
Решение данной задачи в предлагаемом изобретении достигается размещением в скважинном приборе не менее двух преобразователей электромагнитной энергии в механическую, работающих на разных частотах. При этом преобразователи электромагнитной энергии в механическую расположены в скважинном приборе последовательно в порядке убывания резонансной частоты, а размер каждого из них определяется величиной резонансной частоты, каждая из которых отличается от предыдущей на целое число октав. Причем кабель, соединяющий генератор электромагнитных импульсов со скважинным прибором, выполнен коаксиальным с волновым сопротивлением, которое равно выходному сопротивлению генератора и входному сопротивлению скважинного прибора. The solution to this problem in the present invention is achieved by placing in the downhole tool at least two converters of electromagnetic energy into mechanical energy, operating at different frequencies. In this case, the converters of electromagnetic energy into mechanical energy are located in the downhole tool sequentially in decreasing order of the resonant frequency, and the size of each of them is determined by the value of the resonant frequency, each of which differs from the previous one by an integer number of octaves. Moreover, the cable connecting the electromagnetic pulse generator to the downhole tool is made coaxial with wave impedance, which is equal to the output impedance of the generator and the input resistance of the downhole tool.
Предлагаемая схема изобретения «Устройство для раскольматации призабойной зоны эксплуатационных и нагнетательных скважин» проиллюстрирована на Фиг. 1 , где: 1 - ультразвуковые преобразователи электромагнитной энергии в механическую, 2 - призабойная зона, 3 - зона перфорации, 4 - скважинный прибор, 5 - насосно-компрессорная труба (НКТ), 6 - обсадная труба, 7 - скважина, 8 - коаксиальный кабель, 9 - лебедка, 10 - генератор электромагнитных импульсов резонансной частоты с контроллером (условно не показан); 1 1 - геофизический подъемник The proposed scheme of the invention “Device for raskolmatization of the bottomhole zone of production and injection wells” is illustrated in FIG. 1, where: 1 - ultrasonic converters of electromagnetic energy into mechanical energy, 2 - bottomhole zone, 3 - perforation zone, 4 - downhole tool, 5 - tubing, 6 - casing pipe, 7 - well, 8 - coaxial cable, 9 - winch, 10 - generator of electromagnetic pulses of resonant frequency with a controller (not shown conditionally); 1 1 - geophysical elevator
Устройство работает следующим образом (см. Фиг. 1). The device operates as follows (see Fig. 1).
Сигнал соответствующей частоты от генератора 10, снабженного контроллером (условно не показан), через коаксиальный кабель 8 подается на преобразователи электромагнитной энергии в механическую 1. Использование ультразвука более высокой частоты обеспечивает максимально интенсивное воздействие при малых радиусах, а ультразвука
более низкой частоты позволяет охватить ультразвуковым воздействием больший объём призабойной зоны. При этом контроллер генератора (условно не показан) формирует сигнал необходимой формы, являющийся гармоническим со ступенчатой огибающей. В этом случае каждый из преобразователей 1 настроен на определенную гармонику общего сигнала. Преобразователи электромагнитной энергии в механическую 1 располагаются в скважинном приборе 4 последовательно в порядке убывания резонансной частоты, а размер каждого из них определяется величиной резонансной частоты. Каждая из последующих частот отличается от предыдущей на целое число октав. Коаксиальный кабель 8 выполнен с сопротивлением, соответствующим выходному сопротивлению генератора 10 и входному сопротивлению скважинного прибора 4, что позволяет поддерживать заданную форму сигнала. The signal of the corresponding frequency from the generator 10, equipped with a controller (not shown conditionally), is fed through a coaxial cable 8 to electromagnetic energy converters into mechanical 1. The use of higher frequency ultrasound provides the most intense effect at small radii, and ultrasound lower frequency allows you to cover with ultrasound a larger volume of the bottomhole zone. In this case, the generator controller (conditionally not shown) generates a signal of the required shape, which is harmonic with a step envelope. In this case, each of the converters 1 is tuned to a specific harmonic of the common signal. Converters of electromagnetic energy to mechanical 1 are located in the downhole tool 4 sequentially in decreasing order of the resonant frequency, and the size of each of them is determined by the magnitude of the resonant frequency. Each of the following frequencies differs from the previous one by an integer number of octaves. Coaxial cable 8 is made with a resistance corresponding to the output resistance of the generator 10 and the input resistance of the downhole tool 4, which allows you to maintain a given waveform.
Эксперименты показали, что мультичастотное воздействие, осуществляемое предлагаемым устройством, существенно повышает дебет скважин по сравнению с моночастотным воздействием (см. Табл. 1). Таблица 1. Средний прирост дебета после моночастотной и The experiments showed that the multifrequency effect provided by the proposed device significantly increases the debit of the wells compared to the single-frequency action (see Table 1). Table 1. The average increase in debit after monofrequency and
м льтичастотной ультразвуковой обработки п изабойно зоны скважины m of ultrasonic processing frequency and well zone
Таким образом, предлагаемое устройство при минимально возможных габаритах скважинного прибора позволяет существенно увеличить глубину эффективной обработки призабойной зоны.
Thus, the proposed device with the smallest possible dimensions of the downhole tool can significantly increase the depth of effective processing of the bottomhole zone.
Claims
1. Устройство для раскольматации призабойной зоны эксплуатационных и нагнетательных скважин, содержащее генератор электромагнитных импульсов резонансной частоты, коаксиальный кабель, соединяющий генератор со скважинным прибором, отличающееся тем, что, с целью увеличения глубины эффективной обработки призабойной зоны, скважинный прибор содержит не менее двух преобразователей 1. A device for raskolmatization of the bottom-hole zone of production and injection wells, containing a generator of electromagnetic pulses of resonant frequency, a coaxial cable connecting the generator to the downhole tool, characterized in that, in order to increase the depth of effective treatment of the bottom-hole zone, the downhole tool contains at least two transducers
электромагнитной энергии в механическую, причем подаваемый по кабелю сигнал от генератора на преобразователи электромагнитной энергии скважинного прибора является гармоническим со ступенчатой огибающей, а каждый из преобразователей настроен на определенную гармонику общего сигнала. electromagnetic energy into mechanical energy, and the signal from the generator supplied via cable to the electromagnetic energy converters of the downhole tool is harmonic with a step envelope, and each of the converters is tuned to a specific harmonic of the common signal.
2. Устройство по п. 1 , отличающееся тем, что преобразователи 2. The device according to p. 1, characterized in that the converters
электромагнитной энергии в механическую расположены в скважинном приборе последовательно в порядке убывания резонансной частоты, при этом размер каждого из них определяется величиной резонансной частоты, а каждая из последующих частот отличается от предыдущей на целое число октав. electromagnetic energy into the mechanical energy are located in the downhole tool sequentially in decreasing order of the resonant frequency, while the size of each of them is determined by the value of the resonant frequency, and each of the subsequent frequencies differs from the previous one by an integer number of octaves.
3. Устройство по п. 1 , отличающееся тем, что генератор электромагнитных импульсов снабжен контроллером, обеспечивающим возможность формирования сигнала необходимой формы. 3. The device according to p. 1, characterized in that the electromagnetic pulse generator is equipped with a controller that provides the possibility of generating a signal of the required shape.
4. Устройство по п. 1 , отличающееся тем, что кабель выполнен 4. The device according to p. 1, characterized in that the cable is made
коаксиальным с волновым сопротивлением, которое равно выходному сопротивлению генератора и входному сопротивлению скважинного прибора.
coaxial with wave impedance, which is equal to the output impedance of the generator and the input impedance of the downhole tool.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2888203A CA2888203A1 (en) | 2012-09-18 | 2012-09-18 | A device for decolmatation of the bottom-hole area of production and injection wells |
| US14/431,909 US20150218911A1 (en) | 2012-09-18 | 2012-09-18 | Device for decolmatation of the critical area of exploitation and injection wells |
| EA201400646A EA201400646A1 (en) | 2012-09-18 | 2012-09-18 | DEVICE FOR SPLITTING THE ORDER ZONE OF OPERATIONAL AND SUPPLY WELLS |
| PCT/RU2012/000768 WO2014046560A1 (en) | 2012-09-18 | 2012-09-18 | Device for decolmatation of the critical area of exploitation and injection wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/RU2012/000768 WO2014046560A1 (en) | 2012-09-18 | 2012-09-18 | Device for decolmatation of the critical area of exploitation and injection wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014046560A1 true WO2014046560A1 (en) | 2014-03-27 |
Family
ID=50341744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2012/000768 WO2014046560A1 (en) | 2012-09-18 | 2012-09-18 | Device for decolmatation of the critical area of exploitation and injection wells |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20150218911A1 (en) |
| CA (1) | CA2888203A1 (en) |
| EA (1) | EA201400646A1 (en) |
| WO (1) | WO2014046560A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10238249B2 (en) | 2016-01-08 | 2019-03-26 | Omachron Intellectual Property Inc. | Hand carryable surface cleaning apparatus |
| US10253601B2 (en) | 2014-06-10 | 2019-04-09 | Limited Liability Company “Ilmasonik-Science” | Downhole acoustic device for treating the bottomhole regions of oil and gas reservoirs |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017067898A1 (en) * | 2015-10-19 | 2017-04-27 | Hz-Dr. Hans Jürgen Hahn Und Dr. Thomas Zumbroich Gbr | Substrate permeability measuring device |
| MX2019001409A (en) * | 2016-08-02 | 2019-06-20 | Nat Oilwell Dht Lp | Drilling tool with non-synchronous oscillators and method of using same. |
| CA3036498A1 (en) * | 2016-09-12 | 2018-03-15 | Schlumberger Canada Limited | Well infiltration area calculation using logging while drilling data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU936404A2 (en) * | 1980-10-31 | 1982-06-15 | Всесоюзный Научно-Исследовательский Институт Нормализации В Машиностроении (Горьковский Филиал) | Staircase voltage generator |
| US20030196816A1 (en) * | 2002-04-23 | 2003-10-23 | Baker Hughes Incorporated | Method for reduction of scale during oil and gas production and apparatus for practicing same |
| RU2215126C2 (en) * | 2002-05-27 | 2003-10-27 | Закрытое акционерное общество "ИНЕФ" | Method of recovery and maintenance of well productivity |
| RU54973U1 (en) * | 2006-02-27 | 2006-07-27 | Общество с ограниченной ответственностью "Виатех" | DEVICE FOR ULTRASONIC INFLUENCE ON THE WALLS OF THE ARTESIAN WELL |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1882394A (en) * | 1928-03-23 | 1932-10-11 | Pierce George Washington | Magnetostrictive vibrator |
| US6619394B2 (en) * | 2000-12-07 | 2003-09-16 | Halliburton Energy Services, Inc. | Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
| US7145473B2 (en) * | 2003-08-27 | 2006-12-05 | Precision Drilling Technology Services Group Inc. | Electromagnetic borehole telemetry system incorporating a conductive borehole tubular |
| RU2392422C1 (en) * | 2009-04-28 | 2010-06-20 | Общество С Ограниченной Ответственностью "Соновита" | Method for production of oil with help of elastic vibration energy and facility for its implementation |
-
2012
- 2012-09-18 WO PCT/RU2012/000768 patent/WO2014046560A1/en active Application Filing
- 2012-09-18 EA EA201400646A patent/EA201400646A1/en unknown
- 2012-09-18 US US14/431,909 patent/US20150218911A1/en not_active Abandoned
- 2012-09-18 CA CA2888203A patent/CA2888203A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU936404A2 (en) * | 1980-10-31 | 1982-06-15 | Всесоюзный Научно-Исследовательский Институт Нормализации В Машиностроении (Горьковский Филиал) | Staircase voltage generator |
| US20030196816A1 (en) * | 2002-04-23 | 2003-10-23 | Baker Hughes Incorporated | Method for reduction of scale during oil and gas production and apparatus for practicing same |
| RU2215126C2 (en) * | 2002-05-27 | 2003-10-27 | Закрытое акционерное общество "ИНЕФ" | Method of recovery and maintenance of well productivity |
| RU54973U1 (en) * | 2006-02-27 | 2006-07-27 | Общество с ограниченной ответственностью "Виатех" | DEVICE FOR ULTRASONIC INFLUENCE ON THE WALLS OF THE ARTESIAN WELL |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10253601B2 (en) | 2014-06-10 | 2019-04-09 | Limited Liability Company “Ilmasonik-Science” | Downhole acoustic device for treating the bottomhole regions of oil and gas reservoirs |
| US10238249B2 (en) | 2016-01-08 | 2019-03-26 | Omachron Intellectual Property Inc. | Hand carryable surface cleaning apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EA201400646A1 (en) | 2014-09-30 |
| CA2888203A1 (en) | 2014-03-27 |
| US20150218911A1 (en) | 2015-08-06 |
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