SU1430498A1 - Устройство дл установки пластыр в скважине - Google Patents
Устройство дл установки пластыр в скважине Download PDFInfo
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- SU1430498A1 SU1430498A1 SU853842751A SU3842751A SU1430498A1 SU 1430498 A1 SU1430498 A1 SU 1430498A1 SU 853842751 A SU853842751 A SU 853842751A SU 3842751 A SU3842751 A SU 3842751A SU 1430498 A1 SU1430498 A1 SU 1430498A1
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Изобретение относитс к эксплуатации скважин, а именно к устройст- вам, используемьм л;л перекрыти мест повреждени обсадной колонни или зо- , ны ухода промьшочной жидкости.
Цель изобретени - упрощение конструкции устройства и технологии его использовани в скважине.
На фиг. 1 изображено устройство tO :дл установки пластыр .в скважине в транспортном положении; на фиг. 2 - то же, при установке пластыр в сб- |садной колонне; на фиг. 3 - то же, |после распакеровки и частичного пера-15 |мещени устройства вниз; на фиг. 4- то же, при окончательной установке пластыр в обсадной колонне.
Устройство дл установки пластьгр в скважине (фиг.1) состоит из состав-20 ного корпуса 1, пакерующего элемента 2, жестко закрепленного верхним концом на корпусе с помощью обжимной оправки 3. Нижний конец пакерующего ;элемента жестко закреплен с помощью 25 обжимной оправки 4 на ступенчатой втулке 5, подвижной относительно корпуса 1. Внутренн полость корпу- са перекрыта заглушкой 6, между
которой и корпусом расположена втул- 30 ка 7. В сквозных радиальных (отвер сти х ) пазах 8 заглушки 6 размещены
9, взаимодействующие с втулкой ; 7 при помощи пружин 10. Втулка 7 телескопически взаимосв зана с нижним 35 подвижным концевым участком пакерующего элемента при помощи т ги 11. Пластырь 12 доставл етс в заданньй интервал ствола скважины или в интервал обсадной колонны 13 дл герма-40 тизации отверсти 14 на колонне на- сосно-компрессорных труб, соединенных с корпусом 1.
На фиг. 1-4 не показаны располо-45 женные выше клапан, через который происходит заполнение и опорожнение внутренней полости колонны насосно- компрессорных труб, и второй пакерую- щий элемент устройства дл установки 50 пластыр произвольной длины за один цикл его деформировани избыточным внутренним давлением, когда концевые
участки гшастьгр деформируютс двум уплотнительными элементами, а средн часть - жидкостью через клапан.
Устройство дл установки пластьф в скважине работает следующим образом .
После спуска устройства с пластырем 12 .в заданный интервал обсадной колонны 13, в устройстве через колонну насосно-компрессорных труб создают внутреннее давление. Пакерующий элемент 2 при создании в нем расчетного избыточного внутренного давлени деформирует в область больших пластических деформаций часть пластыр 12, прижима последний; к обсадной трубе 13. Подвижный нижний концевой участок пакерующего элемента 2 вместе со ступенчатой втулкой 5 при этом переместитс вверх, а следовательно, переместитс вверх и втулка 7, телескопически соединенна с помощью т ги 11 с подвижным концевым участком пакерующего элемента. Сбрасывают избыточ ное внутреннее давление в колонне насосно-компрессорных труб и перемещают устройство вниз (см. фиг.З) так, чтобы пакерующий элемент 2 был расположен в интервале недеформированного кольцевого участка пластыр 12. Ступенчата втулка 5 с закрепленньм на ней нижним концевым участком пакерующего элемента 2 и соединенна с ним т га 11 свободно перемест тс вниз, а втулка 7 переместитс вниз до взаимодействи нижним торцом с упорами 9. Пласть1рь 12 удерживаетс в колонне 13 за счет остаточных пластических деформаций, обеспечивающих необходимые контактные напр жени между пластырем и обсадной колонной . При повторном создании расчетного избыточного внутреннего давлени в устройстве (см. фиг.4) пакерующий элемент 2 деформирует нижний концевой участок пластыр 12 к внутренней поверхности обсадной колонны 13. После сброса избыточного внутреннего давлени в колонне насосно-компрессорных труб устройство извлекают из скважины и подготавливают к спуску и установке очередного пластьф .
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Claims (1)
- УСТРОЙСТВО ДЛЯ УСТАНОВКИ ПЛАСТЫРЯ В СКВАЖИНЕ, включающее полый корпус со сквозными радиальными отверстиями и закрепленный на нем по крайней мере один пакерующий элемент, расширяемый пластырь и узел фиксации пластыря, содержащий втулку и взаимодействующие с ней подпружиненные упоры, отличающееся тем, что, с целью упрощения конструкции устройства и технологии его испольэо·? вания, в скважине между заглушкой и наружной поверхностью корпуса выполнен кольцевой зазор, в котором установлена втулка узла фиксации пластыряf причем в заглушке выполнены сквозные радиальные отверстия для размещения упоров, а нижний конец пакерующего элемента установлен с возможностью ограниченного осевого перемещения и Связан с втулкой узла фиксации плас- § заглушку на нижнем конце корпуса, тыря.фие.(С£О
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853842751A SU1430498A1 (ru) | 1985-02-04 | 1985-02-04 | Устройство дл установки пластыр в скважине |
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| Application Number | Priority Date | Filing Date | Title |
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| SU853842751A SU1430498A1 (ru) | 1985-02-04 | 1985-02-04 | Устройство дл установки пластыр в скважине |
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| SU853842751A SU1430498A1 (ru) | 1985-02-04 | 1985-02-04 | Устройство дл установки пластыр в скважине |
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| RU2769385C2 (ru) * | 2017-06-13 | 2022-03-31 | Веллтек Ойлфилд Солюшнс АГ | Скважинный инструмент для установки заплаты |
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1985
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