RU2056201C1 - Tube rolling out apparatus - Google Patents
Tube rolling out apparatus Download PDFInfo
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- RU2056201C1 RU2056201C1 RU93034496A RU93034496A RU2056201C1 RU 2056201 C1 RU2056201 C1 RU 2056201C1 RU 93034496 A RU93034496 A RU 93034496A RU 93034496 A RU93034496 A RU 93034496A RU 2056201 C1 RU2056201 C1 RU 2056201C1
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- grooves
- axes
- housing
- rolling out
- recesses
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- 238000009785 tube rolling Methods 0.000 title 1
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
Description
Изобретение относится к бурению и капитальному ремонту скважин и предназначено, в частности, для развальцовывания устройств из профильных труб при их установке в скважине. The invention relates to drilling and overhaul of wells and is intended, in particular, for flaring devices from shaped pipes when installed in the well.
Наиболее близким к изобретению по технической сущности является устройство для развальцовки профильных труб при перекрытии ими зон осложнений в скважине, содержащее полый цилиндрический корпус, на наружной поверхности которого выполнены наклонные относительно продольной оси корпуса плоские участки, и установленные на последних с помощью осей на опорных пластинах вальцующие элементы. Closest to the invention in technical essence is a device for expanding profile pipes when they overlap the zones of complications in the well, containing a hollow cylindrical body, on the outer surface of which flat sections are slanted relative to the longitudinal axis of the body, and milled on the latter using axes on support plates elements.
Недостатком этого устройства является ненадежность его работы из-за недостаточной (низкой) прочности корпуса, минимальная толщина стенки которого в результате выполнения наклонных к его продольной оси плоских участков не удовлетворяет условию прочности при кручении. The disadvantage of this device is the unreliability of its operation due to the insufficient (low) strength of the housing, the minimum wall thickness of which as a result of the execution of flat sections inclined to its longitudinal axis does not satisfy the condition of torsional strength.
Цель изобретения повышение надежности устройства за счет увеличения прочности его корпуса. The purpose of the invention is to increase the reliability of the device by increasing the strength of its body.
Это достигается тем, что в описываемом устройстве для развальцовки труб, содержащей полый цилиндрический корпус, на наружной поверхности которого выполнены наклонные относительно продольной оси корпуса плоские участки, и установленные на последних с помощью осей на опорных пластинах вальцующие элементы, согласно изобретению наклонные плоские участки на наружной поверхности корпуса выполнены в виде цилиндрических цековок, оси которых совпадают с осями вальцующих элементов, а на цековках выполнены открытые с одного конца и эксцентрично смещенные к нему пазы, при этом опорные пластины расположены в пазах и жестко связаны с осями вальцующих элементов. This is achieved by the fact that in the described device for expanding pipes containing a hollow cylindrical body, on the outer surface of which there are made flat sections inclined relative to the longitudinal axis of the body, and rolling elements mounted on the latter using axes on the support plates, according to the invention, inclined flat sections on the outer the surface of the body is made in the form of cylindrical recesses, the axes of which coincide with the axes of the rolling elements, and the recesses are made open and eccentric from one end offset thereto of the grooves, the support plates are located in the grooves and are fixedly connected with the axes of rollers elements.
Другим отличием описываемого устройства является то, что на открытом конце каждого паза выполнен дополнительный паз, а каждая опорная пластина снабжена выступом, расположенным в дополнительном пазу, при этом устройство снабжено гайкой, охватывающей корпус с опорными пластинами. Another difference of the described device is that at the open end of each groove an additional groove is made, and each support plate is provided with a protrusion located in the additional groove, while the device is equipped with a nut covering the housing with the support plates.
Указанные отличия обеспечивают возможность увеличения толщины стенки корпуса в наиболее опасном поперечном сечении его, благодаря чему повышается прочность корпуса и, следовательно, надежность работы устройства без изменения его номинального наружного диаметра для данного типоразмера. These differences provide the possibility of increasing the wall thickness of the housing in the most dangerous cross-section of it, thereby increasing the strength of the housing and, therefore, the reliability of the device without changing its nominal outer diameter for this size.
На фиг. 1 показано устройство, установленное в профильной развальцовываемой трубе, общий вид; на фиг. 2 сечение А-А на фиг. 1; на фиг. 3 фрагмент корпуса устройства с конструктивными элементами для установки вальцующих элементов; на фиг. 4 вид по стрелке Б на фиг. 3; на фиг. 5 сечение В-В на фиг. 1; на фиг. 6 сечение Г-Г на фиг. 1, на фиг. 7 сечение Д-Д на фиг. 3. In FIG. 1 shows a device installed in a profile flare pipe, general view; in FIG. 2, section AA in FIG. 1; in FIG. 3 fragment of the device casing with structural elements for installing rolling elements; in FIG. 4 is a view along arrow B in FIG. 3; in FIG. 5 section BB in FIG. 1; in FIG. 6 section GG in FIG. 1, in FIG. 7 section DD in FIG. 3.
Устройство для развальцовки труб (фиг. 1) содержит цилиндрический полый корпус 1 с центральным каналом 2 и резьбами 3 и 4 для соединения соответственно с колонной бурильных труб 5 и скважинным оборудованием 6. На наружной поверхности корпуса 1 под углом к его продольной оси выполнены плоские участки 7 в виде цилиндрических цековок 8, на которых выполнены открытые с одного конца пазы 9, эксцентрично смещенные относительно цековок в сторону открытого конца этих пазов, с углублениями 10 в их противоположных открытым концам стенках. В пазах 9 размещены опорные пластины 11 с козырьками 12 по их периферии (фиг. 1), входящими в углубления 10 пазов 9 (фиг. 3 и 4). A device for expanding pipes (Fig. 1) comprises a cylindrical
На поверхности опорных пластин 11 (фиг. 1), контактирующей с корпусом, изготовлены выступы 13, входящие в дополнительные пазы 14 (фиг. 3 и 4), выполненные на открытых участках пазов 9. На наружной поверхности корпуса выполнена резьба 15, на которую навинчена гайка 16, охватывающая опорные пластины 11 и обеспечивающая совместно с их козырьками 12, выступами 13, углублениями 10 в корпусе и дополнительными пазами 14 фиксацию пластин 11 от проворота и выпадения из пазов 9. On the surface of the support plates 11 (Fig. 1) in contact with the housing,
На внешних от корпуса поверхностях опорных пластин 11 жестко и с эксцентричным смещением к их верхней периферии (границе) закреплены оси 17 (фиг. 1 и 2), на которых с помощью фиксирующего кольца 18 установлены вальцующие элементы 19. При этом оси 17 вальцующих элементов закреплены на опорных пластинах 11 так, что их геометрические оси симметрии совпадают с геометрическими осями симметрии цилиндрических цековок 8 (см. осевую линию 0-0 на фиг. 3-4). On the surfaces of the
Эксцентричное смещение пазов 9 относительно площади цековок 8, а также величину максимально возможного углубления цековок в стенку корпуса определяют расчетным путем для конкретного типоразмера устройства с учетом обеспечения необходимого запаса прочности корпуса при работе устройства в условиях кручения. А максимально возможное смещение опорных пластин 11 относительно осей 17 вальцующих элементов 19 обусловлено расположением пазов 9 под них и тем, что геометрические оси симметрии закрепленных на них осей 17 вальцующих элементов 19 должны совпадать с геометрическими осями симметрии цековок. The eccentric displacement of the
Работа устройства поясняется на примере развальцовки профильных труб при изоляции ими зоны нарушения герметичности обсадной колонны 20 (фиг. 1, 5, 6) скважины. The operation of the device is illustrated by the example of flaring profile pipes when they isolate the zone of leakage of the casing string 20 (Fig. 1, 5, 6) of the well.
Профильные трубы 21 спускают внутрь обсадной колонны 20, в интервал изоляции и расширяют до прижатия их стенок к стенке обсадной колонны 20 (фиг. 5) созданием внутреннего гидравлического давления.
Затем с помощью резьбы 3 устройство присоединяют к колонне труб 5 и спускают в скважину. По достижении устройством верхнего конца профильных труб 21 колонну бурильных труб начинают вращать при одновременном создании осевой нагрузки и промывки полости труб через центральный канал 2 корпуса 1 жидкостью. В результате этого недожатые давлением участки 22 (фиг. 5) профильных труб 21 выправляются до плотного и герметичного прижатия всей наружной поверхности профильных труб к внутренней поверхности обсадных труб 20 (фиг. 6). Then, using
По окончании развальцовывания колонну бурильных труб 5 с устройством поднимают из скважины. At the end of the flaring, the
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU93034496A RU2056201C1 (en) | 1993-07-01 | 1993-07-01 | Tube rolling out apparatus |
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RU93034496A RU2056201C1 (en) | 1993-07-01 | 1993-07-01 | Tube rolling out apparatus |
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RU93034496A RU93034496A (en) | 1995-12-27 |
RU2056201C1 true RU2056201C1 (en) | 1996-03-20 |
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RU93034496A RU2056201C1 (en) | 1993-07-01 | 1993-07-01 | Tube rolling out apparatus |
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US6470966B2 (en) | 1998-12-07 | 2002-10-29 | Robert Lance Cook | Apparatus for forming wellbore casing |
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US6575250B1 (en) | 1999-11-15 | 2003-06-10 | Shell Oil Company | Expanding a tubular element in a wellbore |
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