WO2010120207A1 - Oil protection system for a downhole motor - Google Patents
Oil protection system for a downhole motor Download PDFInfo
- Publication number
- WO2010120207A1 WO2010120207A1 PCT/RU2010/000148 RU2010000148W WO2010120207A1 WO 2010120207 A1 WO2010120207 A1 WO 2010120207A1 RU 2010000148 W RU2010000148 W RU 2010000148W WO 2010120207 A1 WO2010120207 A1 WO 2010120207A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- downhole motor
- chamber
- oil
- protection system
- casing
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 239000010705 motor oil Substances 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 239000012530 fluid Substances 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
Definitions
- the invention relates to drilling equipment, and in particular to oil protection systems of nodes (bearings, gears, etc.) of downhole motors used for drilling directional wells.
- V.A. including a housing forming an oil-filled chamber, seals, lubricator.
- the lubricator piston is spring loaded and provides compensation for lubricant leaks during downhole motor operation.
- the oil protection system protects the mechanisms located in it from the influence of aggressive components of the drilling fluid and increases their durability.
- a known turbo-drill with an oil protection system (see RF patent Zh2263757 Reducer turbo-drill, author of Sorokoumov BK), containing an oil-filled chamber, sealing seals, axial and radial bearings installed in the oil chamber, a planetary gear and a diaphragm lubricator (lubricated reservoir) having hydraulic channels communication with the cavities of the axial and radial bearings and the cavity of the planetary gear.
- the lubricator creates excess pressure in the lubricant and compensates for its leakage. Lubrication protects the gearbox and supports from the influence of aggressive components of the flushing fluid and increases their service life.
- the disadvantages of this design include the lack of a system for removing wear products and other impurities from the zone of working mechanisms that accumulate in the oil-filled chamber and worsen the lubrication conditions of parts, which ultimately leads to a reduction in their service life.
- the closest technical solution to the claimed invention is the well-known oil protection system of a downhole motor adopted as a prototype (cml
- the downhole motor oil protection system is designed to protect: downhole motor mechanisms from drilling mud. It protects the working mechanisms from the influence of aggressive components of the drilling fluid, provides lubrication of these mechanisms and increases their durability.
- the oil protection system comprises an oil-filled chamber and a tubular element rigidly connected to the housing, upper and lower shaft seals, a separation cavity formed by the upper seal and the tubular element and filled with grease.
- baffle disk rigidly connected with the shaft above the tubular element, forming a channel for the passage of washing liquid with the housing along its entire length, while the density of the lubricant filling the separation cavity is higher than the density of the washing liquid.
- the disadvantages of the prototype include the lack of a device for removing wear products from the zone of mechanisms operating in the oil-filled chamber.
- Downhole motor mechanisms e.g. bearings, gearbox, swivel joints, etc.
- Accumulation in an oil-filled mixed chamber metal particles worsens the friction conditions, further increases the wear of parts of mechanisms, which ultimately leads to a reduction in their service life.
- the technical task of the invention is to reduce the wear of a downhole motor by removing metal wear products from the friction zone of mechanisms operating in an oil-filled chamber, which improves lubrication conditions and increases the service life of downhole motors.
- the problem is solved due to the fact that in the known system of oil protection of the downhole motor, including a chamber with a casing and seals filled with lubricating oil, the downhole motor mechanisms that are protected from the drilling mud, installed in the chamber, according to the invention, magnets for collecting wear products are installed in the chamber, located in one or more cavities formed by the casing and fixedly mounted inside the casing by one or more annular elements.
- one or more annular elements have a collar connecting the chamber casing and the annular elements to form closed cavities.
- magnets for collecting wear products are installed under mechanisms operating with increased wear, for example, under axial bearings.
- mechanisms installed in the chamber that are protected from drilling mud, including axial bearings installation of magnets to collect wear products in cavities formed by the casing and ring elements fixed motionless inside it, allows to remove metal wear products from the friction zone of working mechanisms. Metal wear products, falling into the area of action of magnets, accumulate around them, sticking together under the influence of a magnetic field.
- the cavities formed by the casing and the ring elements fixedly installed inside the casing allow the accumulated wear products to be retained during strong vibrations accompanying the drilling process.
- the burt connecting the casing and the ring elements with the formation of closed cavities forms the bottom of the cavity and contributes to the retention of wear products inside the cavity.
- Fig. L shows an example of an oil protection system for a downhole motor with an oil-filled gearbox according to the invention.
- Figure 2 shows an example of a specific implementation of the oil protection system downhole motor with oil-filled gearbox according to the invention.
- the oil protection system located in the downhole motor including the housing 1, the shaft 2 with an axial turbine 3, contains a chamber 4 s casing 5, filled with lubricating oil, mechanisms installed in the chamber 4 that are protected from the drilling fluid: axial 6 and radial 7 bearings, seals 8, planetary gear 9 and diaphragm lubricator 10.
- the lubricator 10 has hydraulic channels 11 for communication with the oil-filled chamber 4. In the oil-filled chamber 4 mounted magnets 12.
- Magnets 12 are mounted under axial bearings 6 in the cavities formed by the casing 5 of the oil-filled chamber 4 and ring elements made, for example, in the form of bushings 13, which have a collar 14 connecting the casing 5 and the sleeve 13 to each other at the bottom of the cavity.
- a rock cutting bit 16 is fixed on the output shaft 15 of the turbodrill.
- Figure 2 shows an example of a specific design of the oil protection system of a downhole motor with an oil-filled gearbox according to the invention.
- the magnets 12 are installed under the axial bearings 6 in the cavities formed by the casing 5 and the bushings 13, each of which has a collar 14 connecting the sleeve 13 with the casing 5 at the bottom of the cavity.
- the proposed system of oil protection downhole motor works as follows.
- drilling fluid extends in the direction of arrow A, causing the shaft 2 to rotate with the axial turbine mud motor 3, the planetary gear 9 and the output shaft 15 with the bit 16.
- axial bearings 6 and planetary gear 9 from bit 16 act q high loads, under the influence of which wear of rubbing parts occurs.
- Wear products falling into the range of magnets 12 mounted under axial bearings 5 in the cavities formed by the casing 5 and bushings 13, accumulate around them during the operation of the downhole motor. Sticking together under the action magnetic field, wear products are removed from the friction zone of bearings
- the present invention allows to reduce the wear of mechanisms working with friction, improve the conditions of their lubrication, increase the service life of downhole motors.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to oil protection systems for assemblies (bearings, reduction gears etc.) of downhole motors used for drilling directional wells. An oil protection system for a downhole motor comprises an oil-filled chamber with a jacket and seals, and mechanisms of the downhole motor which are installed in the chamber and are to be protected from the drilling mud. Magnets for collecting wear debris are installed in the chamber and are positioned in one or more cavities formed by the jacket and one or more annular elements which are installed immovably inside the jacket. This decreases wear, improves the conditions for the lubrication of the mechanisms and increases the service life of the downhole motor.
Description
Система маслозащиты забойного двигателя Downhole oil protection system
Область техники.The field of technology.
Изобретение относится к буровой технике, а именно к системам маслозащиты узлов (подшипников, редукторов и др.) забойных двигателей, применяемых для бурения наклонно-направленных скважин.The invention relates to drilling equipment, and in particular to oil protection systems of nodes (bearings, gears, etc.) of downhole motors used for drilling directional wells.
Предшествующий уровень техники.The prior art.
Известна система маслозащиты забойного двигателя, (см. патент РФKnown oil protection system for a downhole motor, (see RF patent
N°2023847, от 1989.08.16, Система маслозащиты забойного двигателя, авторы Иоанесян Ю.P., Кузин Б.B., Кафаров H.A., Таиров Г.М, ФилимоновN ° 2023847, dated 1989.08.16, Oil protection system of a downhole motor, authors Ioanesyan Yu.P., Kuzin B.B., Kafarov H.A., Tairov G.M., Filimonov
В. А.), включающая корпус, образующий маслонаполненную камеру, уплотнения, лубрикатор. Поршень лубрикатора подпружинен и обеспечивает компенсацию утечек смазки при работе забойного двигателя.V.A.), including a housing forming an oil-filled chamber, seals, lubricator. The lubricator piston is spring loaded and provides compensation for lubricant leaks during downhole motor operation.
Система маслозащиты предохраняет размещенные в ней механизмы от влияния агрессивных компонентов бурового раствора и повышает их долговечность.The oil protection system protects the mechanisms located in it from the influence of aggressive components of the drilling fluid and increases their durability.
В тоже время продукты износа механизмов остаются в герметичной маслонаполненной камере. Отсутствие системы удаления продуктов износа и других примесей из зоны работающих механизмов ухудшает условия смазки деталей, и в конечном итоге сокращает срок их службы.At the same time, the wear products of the mechanisms remain in a sealed oil-filled chamber. The absence of a system for removing wear products and other impurities from the zone of working mechanisms worsens the lubrication conditions of parts, and ultimately reduces their service life.
Известен редукторный турбобур с системой маслозащиты (см. патент РФ Ж2263757 Редукторный турбобур, автор Сорокоумов B.K.), содержащий маслонаполненную камеру, герметизирующие уплотнения, установленные в масляной камере осевую и радиальную опоры, планетарный редуктор и диафрагменный лубрикатор (резервуар со смазкой), имеющий гидравлические каналы связи с полостями осевой и радиальной опор и полостью планетарного редуктора. Лубрикатор создает избыточное давление в смазке и компенсирует её утечки. Смазка предохраняет редуктор
и опоры от влияния агрессивных компонентов промывочной жидкости и увеличивает срок их службы.A known turbo-drill with an oil protection system (see RF patent Zh2263757 Reducer turbo-drill, author of Sorokoumov BK), containing an oil-filled chamber, sealing seals, axial and radial bearings installed in the oil chamber, a planetary gear and a diaphragm lubricator (lubricated reservoir) having hydraulic channels communication with the cavities of the axial and radial bearings and the cavity of the planetary gear. The lubricator creates excess pressure in the lubricant and compensates for its leakage. Lubrication protects the gearbox and supports from the influence of aggressive components of the flushing fluid and increases their service life.
К недостаткам данной конструкции относится отсутствие системы удаления продуктов износа и других примесей из зоны работающих механизмов, которые скапливаются в маслонаполненной камере и ухудшают условия смазки деталей, что в конечном итоге приводит к сокращению срока их службы.The disadvantages of this design include the lack of a system for removing wear products and other impurities from the zone of working mechanisms that accumulate in the oil-filled chamber and worsen the lubrication conditions of parts, which ultimately leads to a reduction in their service life.
Наиболее близким техническим решением к заявляемому изобретению является известная система маслозащиты забойного двигателя, принятая за прототип (cмl| А.с. СССР JY° 943386, авторы Крутик Э.H., Деркач Н.Д. и Чудаков Г.Ф:). Система маслозащиты забойного двигателя предназначена для защиты : механизмов забойного двигателя от бурового раствора. Она предохраняет работающие механизмы от влияния агрессивных компонентов бурового раствора, обеспечивает смазку этих механизмов и повышает их долговечность. Система маслозащиты содержит маслонаполненную камеру и трубчатый элемент, жестко связанные с корпусом, верхнее и нижнее уплотнения вала, разделительную полость, образованную верхним уплотнением и трубчатым элементом и заполненную смазкой. Она снабжена отбойным диском, жестко связанным с валом над трубчатым элементом, образующим с корпусом по всей своей длине канал Для прохода промывочной жидкости, при этом плотность смазки, заполняющей разделительную полость, выше плотности промывочной жидкости.The closest technical solution to the claimed invention is the well-known oil protection system of a downhole motor adopted as a prototype (cml | AS USSR JY ° 943386, authors Krutik E.H., Derkach N.D. and Chudakov G.F :). The downhole motor oil protection system is designed to protect: downhole motor mechanisms from drilling mud. It protects the working mechanisms from the influence of aggressive components of the drilling fluid, provides lubrication of these mechanisms and increases their durability. The oil protection system comprises an oil-filled chamber and a tubular element rigidly connected to the housing, upper and lower shaft seals, a separation cavity formed by the upper seal and the tubular element and filled with grease. It is equipped with a baffle disk, rigidly connected with the shaft above the tubular element, forming a channel for the passage of washing liquid with the housing along its entire length, while the density of the lubricant filling the separation cavity is higher than the density of the washing liquid.
К недостаткам прототипа относится отсутствие устройства удаления продуктов износа из зоны работающих в маслонаполненной камере механизмов. Механизмы забойного двигателя (например, подшипники, редуктор, шарнирные соединения и др.) работают при высоких динамических нагрузках. Скопление в , маслонаполненной камере перемешанных
металлических частиц ухудшает условия трения, дополнительно увеличивает износ деталей механизмов, что в конечном итоге приводит к сокращению срока их службы.The disadvantages of the prototype include the lack of a device for removing wear products from the zone of mechanisms operating in the oil-filled chamber. Downhole motor mechanisms (e.g. bearings, gearbox, swivel joints, etc.) operate at high dynamic loads. Accumulation in an oil-filled mixed chamber metal particles worsens the friction conditions, further increases the wear of parts of mechanisms, which ultimately leads to a reduction in their service life.
Раскрытие изобретения. Технической задачей предлагаемого изобретения является снижение износа забойного двигателя путем удаления металлических продуктов износа из зоны трения работающих в маслонаполненной камере механизмов, что улучшает условия смазки и повышает срок службы забойных двигателей.Disclosure of the invention. The technical task of the invention is to reduce the wear of a downhole motor by removing metal wear products from the friction zone of mechanisms operating in an oil-filled chamber, which improves lubrication conditions and increases the service life of downhole motors.
Поставленная задача решается за счет того, что в известной системе маслозащиты забойного двигателя, включающей камеру с кожухом и уплотнениями, заполненную смазочным маслом, установленные в камере защищаемые от бурового раствора механизмы забойного двигателя, согласно изобретению, в камере установлены магниты для сбора продуктов износа, расположенные в одной или нескольких полостях, образованных кожухом и установленными неподвижно внутри кожуха одним или несколькими кольцевыми элементами.The problem is solved due to the fact that in the known system of oil protection of the downhole motor, including a chamber with a casing and seals filled with lubricating oil, the downhole motor mechanisms that are protected from the drilling mud, installed in the chamber, according to the invention, magnets for collecting wear products are installed in the chamber, located in one or more cavities formed by the casing and fixedly mounted inside the casing by one or more annular elements.
Кроме того, в системе маслозащиты забойного двигателя, согласно изобретению, один или несколько кольцевых элементов имеют бурт, соединяющий кожух камеры и кольцевые элементы с образованием замкнутых полостей.In addition, in the oil protection system of the downhole motor according to the invention, one or more annular elements have a collar connecting the chamber casing and the annular elements to form closed cavities.
Кроме того, в системе маслозащиты забойного двигателя, согласно изобретению, магниты для сбора продуктов износа установлены под механизмами, работающими с повышенным износом, например, под осевыми подшипниками. ( В предлагаемой конструкции системы маслозащиты забойного двигателя, включающей камеру с кожухом и уплотнениями, заполненную смазочным маслом, установленные в камере защищаемые от бурового раствора механизмы, в том числе осевые подшипники, установка магнитов
для сбора продуктов износа в полостях, образованных кожухом и установленными неподвижно внутри него кольцевыми элементами, позволяет удалять металлические продукты износа из зоны трения работающих механизмов. Металлические продукты износа, попадая в зону действия магнитов, скапливаются вокруг них, слипаясь под действием магнитного поля. Полости, образованные кожухом и установленными неподвижно внутри кожуха кольцевыми элементами, позволяют удерживать скопленные продукты износа при сильных вибрациях, сопровождающих процесс бурения. Бурт, соединяющий кожух и кольцевые элементы с образованием замкнутых полостей, образует дно полости и способствует удержанию продуктов износа внутри полости.In addition, in the oil protection system of a downhole motor, according to the invention, magnets for collecting wear products are installed under mechanisms operating with increased wear, for example, under axial bearings. ( In the proposed design of the downhole motor oil protection system, including a chamber with a casing and seals, filled with lubricating oil, mechanisms installed in the chamber that are protected from drilling mud, including axial bearings, installation of magnets to collect wear products in cavities formed by the casing and ring elements fixed motionless inside it, allows to remove metal wear products from the friction zone of working mechanisms. Metal wear products, falling into the area of action of magnets, accumulate around them, sticking together under the influence of a magnetic field. The cavities formed by the casing and the ring elements fixedly installed inside the casing allow the accumulated wear products to be retained during strong vibrations accompanying the drilling process. The burt connecting the casing and the ring elements with the formation of closed cavities forms the bottom of the cavity and contributes to the retention of wear products inside the cavity.
Наибольшей интенсивности износа подвергаются осевые подшипники валов забойного двигателя. Поэтому магниты установлены под осевыми подшипниками.The greatest intensity of wear are axial bearings of the shafts of the downhole motor. Therefore, magnets are mounted under axial bearings.
Удаление продуктов износа из зоны работающих механизмов улучшает качество смазочной пленки в зонах трения деталей и приводит к увеличению срока их службы и забойного двигателя в целом.Removing wear products from the zone of working mechanisms improves the quality of the lubricating film in the friction zones of parts and leads to an increase in their service life and the downhole motor as a whole.
Краткое описание чертежей На фиг.l показан пример схемы исполнения системы маслозащиты забойного двигателя с маслонаполненным редуктором согласно изобретению.Brief Description of the Drawings Fig. L shows an example of an oil protection system for a downhole motor with an oil-filled gearbox according to the invention.
На фиг.2 показан пример конкретного исполнения системы маслозащиты забойного двигателя с маслонаполненным редуктором согласно изобретению.Figure 2 shows an example of a specific implementation of the oil protection system downhole motor with oil-filled gearbox according to the invention.
Вариант осуществления изобретения.An embodiment of the invention.
Система маслозащиты, размещенная в забойном двигателе, включающем корпус 1, вал 2 с осевой турбиной 3, содержит камеру 4 с
кожухом 5, заполненную смазочным маслом, установленные в камере 4 защищаемые от бурового раствора механизмы: осевые 6 и радиальные 7 подшипники, уплотнения 8, планетарную передачу 9 и диафрагменный лубрикатор 10. Лубрикатор 10 имеет гидравлические каналы 11 связи с маслонаполненной камерой 4. В маслонаполненной камере 4 установлены магниты 12.The oil protection system located in the downhole motor, including the housing 1, the shaft 2 with an axial turbine 3, contains a chamber 4 s casing 5, filled with lubricating oil, mechanisms installed in the chamber 4 that are protected from the drilling fluid: axial 6 and radial 7 bearings, seals 8, planetary gear 9 and diaphragm lubricator 10. The lubricator 10 has hydraulic channels 11 for communication with the oil-filled chamber 4. In the oil-filled chamber 4 mounted magnets 12.
Магниты 12 установлены под осевыми подшипниками 6 в полостях, образованных кожухом 5 маслонаполненной камеры 4 и кольцевыми элементами, выполненными, например, в виде втулок 13, которые имеют бурт 14, соединяющий кожух 5 и втулку 13 между собой внизу полости. На выходном валу 15 турбобура закреплено породоразрушающее долото 16.Magnets 12 are mounted under axial bearings 6 in the cavities formed by the casing 5 of the oil-filled chamber 4 and ring elements made, for example, in the form of bushings 13, which have a collar 14 connecting the casing 5 and the sleeve 13 to each other at the bottom of the cavity. A rock cutting bit 16 is fixed on the output shaft 15 of the turbodrill.
На фиг.2 показан пример конкретной конструкции системы маслозащиты забойного двигателя с маслонаполненным редуктором согласно изобретению. Магниты 12 установлены под осевыми подшипниками 6 в полостях, образованных кожухом 5 и втулками 13, каждая из которых имеет бурт 14, соединяющий втулку 13 с кожухом 5 внизу полости.Figure 2 shows an example of a specific design of the oil protection system of a downhole motor with an oil-filled gearbox according to the invention. The magnets 12 are installed under the axial bearings 6 in the cavities formed by the casing 5 and the bushings 13, each of which has a collar 14 connecting the sleeve 13 with the casing 5 at the bottom of the cavity.
Промышленная применимость.Industrial applicability.
Предлагаемая система маслозащиты забойного двигателя работает следующим образом. Во время бурения буровой раствор проходит по направлению стрелки А, приводя во вращение вал 2 с осевой турбиной 3 забойного двигателя, планетарную передачу 9 и выходной вал 15 с долотом 16. В процессе бурения на осевые подшипники 6 и планетарную передачу 9 от долота 16 действуют цвыcoкиe нагрузки, под действием которых происходит износ трущихся деталей. Продукты износа, попадая в зону действия магнитов 12, установленных под осевыми подшипниками 5 в полостях, образованных кожухом 5 и втулками 13, скапливаются вокруг них в течение времени работы забойного двигателя. Слипаясь под действием
магнитного поля, продукты износа удаляются из зоны трения подшипниковThe proposed system of oil protection downhole motor works as follows. During drilling, drilling fluid extends in the direction of arrow A, causing the shaft 2 to rotate with the axial turbine mud motor 3, the planetary gear 9 and the output shaft 15 with the bit 16. During drilling on axial bearings 6 and planetary gear 9 from bit 16 act q high loads, under the influence of which wear of rubbing parts occurs. Wear products, falling into the range of magnets 12 mounted under axial bearings 5 in the cavities formed by the casing 5 and bushings 13, accumulate around them during the operation of the downhole motor. Sticking together under the action magnetic field, wear products are removed from the friction zone of bearings
6, 7 и деталей планетарной передачи 9.6, 7 and planetary gear parts 9.
Установка магнитов 12 в полостях, образованных кожухом 5 и втулками 13, имеющими бурт 14, соединяющий втулки 13 с кожухом 5 внизу полости, помогает удерживать удаленные продукты износа внутри полости при сильных вибрациях, сопровождающих процесс бурения.The installation of magnets 12 in the cavities formed by the casing 5 and the bushings 13 having a shoulder 14 connecting the bushings 13 to the casing 5 at the bottom of the cavity helps to keep the removed wear products inside the cavity during strong vibrations that accompany the drilling process.
Удаление продуктов износа из зоны работающих силовых механизмов улучшает условия смазки деталей и приводит к увеличению срока их службы и забойного двигателя в целом. После гарантированного периода работы забойный двигатель направляется на ревизию, где производится промывка магнитов 12 и втулокRemoving wear products from the area of operating power mechanisms improves the lubrication conditions of the parts and leads to an increase in their service life and the downhole motor as a whole. After a guaranteed period of operation, the downhole motor is sent for revision, where the magnets 12 and bushings are washed
13. После ревизии и необходимого ремонта система маслозащиты вновь готова к эксплуатации и забойный двигатель направляется в бурение.13. After the audit and necessary repairs, the oil protection system is again ready for operation and the downhole motor is sent to the drilling.
Таким образом, предлагаемое изобретение позволяет снизить износ механизмов, работающих с трением, улучшить условия их смазки, повысить срок службы забойных двигателей.
Thus, the present invention allows to reduce the wear of mechanisms working with friction, improve the conditions of their lubrication, increase the service life of downhole motors.
Claims
1. Система маслозащиты забойного двигателя, включающая камеру с кожухом и уплотнениями, заполненную смазочным маслом, установленные в камере защищаемые от бурового раствора механизмы забойного двигателя, отличающуюся тем, что в камере установлены магниты для сбора продуктов износа, расположенные в одной или нескольких полостях, образованных кожухом и установленными неподвижно внутри кожуха одним или несколькими кольцевыми элементами. 1. A downhole motor oil protection system, including a chamber with a casing and seals, filled with lubricating oil, downhole motor mechanisms installed in the chamber, which are protected from drilling mud, characterized in that magnets for collecting wear products located in one or several cavities formed in the chamber are installed casing and fixedly mounted inside the casing with one or more ring elements.
2. Система маслозащиты забойного двигателя по п.l, отличающаяся тем, что один или несколько кольцевых элементов имеют бурт, соединяющий кожух камеры и кольцевые элементы между собой с образованием замкнутых полостей.2. The downhole motor oil protection system according to claim 1, characterized in that one or more annular elements have a collar connecting the chamber casing and the annular elements to each other with the formation of closed cavities.
3. Система маслозащиты забойного двигателя по п.l, отличающаяся тем, что магниты для сбора продуктов износа установлены под механизмами, работающими с повышенным износом, например, осевыми подшипниками. 3. The downhole motor oil protection system according to claim 1, characterized in that the magnets for collecting wear products are installed under mechanisms operating with increased wear, for example, axial bearings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009114501/03A RU2386002C1 (en) | 2009-04-16 | 2009-04-16 | Oil protection system of downhole motor |
| RU2009114501 | 2009-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010120207A1 true WO2010120207A1 (en) | 2010-10-21 |
Family
ID=42671209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2010/000148 WO2010120207A1 (en) | 2009-04-16 | 2010-04-01 | Oil protection system for a downhole motor |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2386002C1 (en) |
| WO (1) | WO2010120207A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010201076B2 (en) * | 2009-03-26 | 2011-11-10 | Smith International, Inc. | Debris catcher for collecting well debris |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU866091A1 (en) * | 1980-01-10 | 1981-09-23 | Пермский Филиал Всесоюзного Ордена Трудового Красного Знамени Научно-Исследовательского Института Буровой Техники | Oil protection device of bottom-hole motor |
| SU943386A1 (en) * | 1976-05-14 | 1982-07-15 | Пермский Филиал Всесоюзного Ордена Трудового Красного Знамени Научно-Исследовательского Института Буровой Техники | Oil protection system of hole-bottom motor |
| RU2039184C1 (en) * | 1992-07-10 | 1995-07-09 | Западно-Сибирский научно-исследовательский и проектно-конструкторский институт технологии глубокого разведочного бурения | Gear box insert of bottom hole drilling engine |
| US6250806B1 (en) * | 1998-08-25 | 2001-06-26 | Bico Drilling Tools, Inc. | Downhole oil-sealed bearing pack assembly |
-
2009
- 2009-04-16 RU RU2009114501/03A patent/RU2386002C1/en active IP Right Revival
-
2010
- 2010-04-01 WO PCT/RU2010/000148 patent/WO2010120207A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU943386A1 (en) * | 1976-05-14 | 1982-07-15 | Пермский Филиал Всесоюзного Ордена Трудового Красного Знамени Научно-Исследовательского Института Буровой Техники | Oil protection system of hole-bottom motor |
| SU866091A1 (en) * | 1980-01-10 | 1981-09-23 | Пермский Филиал Всесоюзного Ордена Трудового Красного Знамени Научно-Исследовательского Института Буровой Техники | Oil protection device of bottom-hole motor |
| RU2039184C1 (en) * | 1992-07-10 | 1995-07-09 | Западно-Сибирский научно-исследовательский и проектно-конструкторский институт технологии глубокого разведочного бурения | Gear box insert of bottom hole drilling engine |
| US6250806B1 (en) * | 1998-08-25 | 2001-06-26 | Bico Drilling Tools, Inc. | Downhole oil-sealed bearing pack assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010201076B2 (en) * | 2009-03-26 | 2011-11-10 | Smith International, Inc. | Debris catcher for collecting well debris |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2386002C1 (en) | 2010-04-10 |
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