RU1818459C - Patch for repair of casing string - Google Patents
Patch for repair of casing stringInfo
- Publication number
- RU1818459C RU1818459C SU4862853A RU1818459C RU 1818459 C RU1818459 C RU 1818459C SU 4862853 A SU4862853 A SU 4862853A RU 1818459 C RU1818459 C RU 1818459C
- Authority
- RU
- Russia
- Prior art keywords
- patch
- repair
- sealing coating
- hardness
- casing
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
- Pipe Accessories (AREA)
Abstract
Сущность изобретени : устройство содержит металлическую продольно-гофрированную трубу с герметизирующим покрытием на наружной поверхности. Во впадинах гофр пластыр на наружной поверхности расположен армирующий материал в виде наплавок из материала с твердостью больше твердости материала ремонтируемой трубы. Высота наплавки имеет высоту, превышающую толщину герметизирующего покрыти после расширени пластыр . 2 ил.SUMMARY OF THE INVENTION: the device comprises a metal longitudinally corrugated pipe with a sealing coating on the outer surface. In the hollows of the corrugation plaster on the outer surface there is a reinforcing material in the form of surfacing from a material with a hardness greater than the hardness of the material of the repaired pipe. Deposition height has a height exceeding the thickness of the sealing coating after expansion of the patch. 2 ill.
Description
Изобретение относитс к нефтегазодо- бывающей промышленности и может быть использовано дл восстановлени герметичности скважин при ремонте обсадных колонн .The invention relates to the oil and gas industry and can be used to restore tightness of wells during the repair of casing strings.
Целью изобретени вл етс повышение надежности соединени пластыр с обсадной трубой за счет исключени продольного смещени пластыр после его установки.The aim of the invention is to increase the reliability of connecting the patch to the casing by eliminating the longitudinal displacement of the patch after installation.
На фиг. 1 показан пластырь: на фиг. 2 разрез А-А на фиг. 1.In FIG. 1 shows a patch: in FIG. 2, section AA in FIG. 1.
Пластырь состоит из продольно-гофрированной трубы 1. наружна поверхность которой покрыта герметиком 2, во впадинах пластыр 3 выполнены наплавки 4.The patch consists of a longitudinally corrugated pipe 1. the outer surface of which is covered with sealant 2, in the depressions of the patch 3 are surfaced 4.
Установка пластыр в ремонтируемой скважине осуществл етс следующим образом .Installation of patches in the well being repaired is carried out as follows.
Пластырь спускают в скважину и расшир ют дорнирующей головкой. При расширении пластыр 1 до сопр жени с обсадной грубой наплавки 4 гран ми врезаютс в обсадную колонну за счет увеличени твердости по сравнению с твердостью металла колонны . При этом герметик 2, облада пластичностью, создает контактную прочность пластыр с колонной, а наплавки предотвращают его страгивание при создании избыточных усилий при прот гивании дорнирующей головки.The patch is lowered into the well and expanded with a die head. When the patch 1 expands to mate with the coarse casing, 4 faces are cut into the casing by increasing hardness compared to the hardness of the metal of the string. At the same time, the sealant 2, having plasticity, creates the contact strength of the patch with the column, and the overlay prevents its friction when creating excessive forces when pulling the mandrel head.
Предложенный пластырь может быть использован дл восстановлени герметичности обсадных колонн, имеющих повреждени в виде отверстий, трещин, износа стенок, разрывов и других дефектов.The inventive patch can be used to restore the tightness of casing strings, which have damage in the form of holes, cracks, wall wear, tears and other defects.
Такой пластырь может найти применение также при установке пластырей в открытом стволе в интервале твердых пород (песчаники и др.), например в угольной промышленности при бурении разведочных и других скважин.Such a patch can also be used when installing patches in an open hole in the interval of hard rocks (sandstones, etc.), for example, in the coal industry when drilling exploration and other wells.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4862853 RU1818459C (en) | 1990-06-18 | 1990-06-18 | Patch for repair of casing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4862853 RU1818459C (en) | 1990-06-18 | 1990-06-18 | Patch for repair of casing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU1818459C true RU1818459C (en) | 1993-05-30 |
Family
ID=21534162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4862853 RU1818459C (en) | 1990-06-18 | 1990-06-18 | Patch for repair of casing string |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU1818459C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631759B2 (en) | 1999-02-26 | 2003-10-14 | Shell Oil Company | Apparatus for radially expanding a tubular member |
| US6631760B2 (en) | 1998-12-07 | 2003-10-14 | Shell Oil Company | Tie back liner for a well system |
| US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
| US6892819B2 (en) | 1998-12-07 | 2005-05-17 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US8678040B2 (en) | 2011-08-16 | 2014-03-25 | Red Leaf Resources, Inc | Vertically compactable fluid transfer device |
-
1990
- 1990-06-18 RU SU4862853 patent/RU1818459C/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент US № 3179168. кл. 166-14. опублик. 1965. Авторское свидетельство СССР N 1710694. кл. Е 21 В 29/10. 1989. * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
| US6631760B2 (en) | 1998-12-07 | 2003-10-14 | Shell Oil Company | Tie back liner for a well system |
| US6892819B2 (en) | 1998-12-07 | 2005-05-17 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US7357188B1 (en) | 1998-12-07 | 2008-04-15 | Shell Oil Company | Mono-diameter wellbore casing |
| US7665532B2 (en) | 1998-12-07 | 2010-02-23 | Shell Oil Company | Pipeline |
| US6631759B2 (en) | 1999-02-26 | 2003-10-14 | Shell Oil Company | Apparatus for radially expanding a tubular member |
| US6684947B2 (en) | 1999-02-26 | 2004-02-03 | Shell Oil Company | Apparatus for radially expanding a tubular member |
| US8678040B2 (en) | 2011-08-16 | 2014-03-25 | Red Leaf Resources, Inc | Vertically compactable fluid transfer device |
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