SU894169A1 - Расширитель - Google Patents
Расширитель Download PDFInfo
- Publication number
- SU894169A1 SU894169A1 SU792858041A SU2858041A SU894169A1 SU 894169 A1 SU894169 A1 SU 894169A1 SU 792858041 A SU792858041 A SU 792858041A SU 2858041 A SU2858041 A SU 2858041A SU 894169 A1 SU894169 A1 SU 894169A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- expander
- sectors
- casing
- shank
- punch
- Prior art date
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- 239000004606 Fillers/Extenders Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
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- Earth Drilling (AREA)
Description
(54) РАСШИРИТЕЛЬ
1
Изобретение относитс к креплению скважин и используетс при изол ции проницаемых пластов в необсаженных скважинах и ремонте обсадных колонн.
Известен расширитель дл установки расшир емыххвостовиков в скважинах, содержащий штангу с коническим элементом и опираюш,имис на него секторами 1.
Недостатком этого расширител вл етс необход11мость точного измерени внутреннего диаметра обсадной колонны в месте ремонта дл установки регулирующей конической втулки, так как допуск на изготовление обсадных труб значительно превышает упругий прогиб секторов. Неточность измерени приводит k неправильной установке регулирующей конической втулки, что вызывает неплотное прилегание расшир емого хвостовика к стенке обсадной колонны или поломку секторов.
Наиболее близким к предлагаемому по технической сущности и достигаемому результату вл етс расширитель дл установки расшир емых хвостовиков в скважинах, включающий штангу с подвижным конусным пуансоном, секторы, опорный элемент и выступы ,2.
Недостатком этого устройства вл етс возможность заклинивани при встрече меньшего внутреннего диаметра обсадной колонны .
Цель изобретени - повышение надежности работы расширител путем уменьшени возможности заклинивани .
Указанна цель достигаетс тем, что в расширит,еле, включающем штангу с подвижным конусным пуансоном, секторы, взаимодействующие с опорным элементом, и выступы , опорный элемент жестко закреплен на
10 конусном пуансоне, а выступы - на опорном элементе, установленном с возможностью взаимодействи выступов с секторами.
На фиг. 1 изображен расширитель дл установки расшир емых хвостовиков в сква ,5 жинах, обший вид; на фиг. 2 - транспортное положение расширител ; на фиг. 3 - разрез А-А на фиг. 2; на фиг. 4 - разрез Б-Б на фиг. 1.
Расширитель имеет штангу 1, выполненную в верхней части с поддерживающим хвостовиком 2 конусным пуансоном 3, а в
20 нижней части - с резьбой, подвижный конусный пуансон 4, имеюший выступы 5, взаимодействующие с упругими секторами 6, опирающимис на гайку 7 и удерживаемыми разрезным кольцом 8, возвратную пружину 9, упирающуюс в гайку 10, упор II, ограничивающий расхождение секторов.
Расщиритель работает следующим образом .
При вт гивании расширител в хвостовик 2 (фиг. 1) поддерживаемый конусным пуансоном 3 нижний торец расшир емого хвостовика , перемеща подвижный конусный пуансон с выступами 5, переводит расширитель в рабочее положение, раздвига секторы 6 до упора в стенку обсадной колонны 12 и сжима возвратную пружину 9.
Расширение хвостовика осуществл етс последовательно поддерживающим конусным пуансоном 3, подвижным конусным пуансоном 4 и упругими секторами 6. После расширени всего хвостовика и выхода из него расширител возвратна пружина 9 переводит расширитель в транспортное положение (фиг. 2), возвраща подвижный конусный пуансон 4 и упругие секторы 6 в первоначальное положение.
При расщирении хвостовика в необсаженной скважине необходимо упор 11 установить в положение, соответствующее требуемому диаметру расширени хвостовика.
Использование предлагаемого расширител дл установки хвостовиков в скважинах позвол ет исключить необходимость измерени внутреннего диаметра обсадной колонны перед ремонтом, повысить надежность работы при установке расшир емых хвостовиков .
Claims (2)
1.Авторское свидетельство СССР
по за вке 2513231, кл Е 21 В 29/00, 1978.
2.Авторское свидетельство СССР
по за вке № 2611448, кл. Е 21 В 18/00, 1978 (прототип).
Фиг
Фиг.2.
Ф(л.гЛ
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792858041A SU894169A1 (ru) | 1979-12-25 | 1979-12-25 | Расширитель |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792858041A SU894169A1 (ru) | 1979-12-25 | 1979-12-25 | Расширитель |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU894169A1 true SU894169A1 (ru) | 1981-12-30 |
Family
ID=20867214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792858041A SU894169A1 (ru) | 1979-12-25 | 1979-12-25 | Расширитель |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU894169A1 (ru) |
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-
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- 1979-12-25 SU SU792858041A patent/SU894169A1/ru active
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