SU1710694A1 - Method for casing repair - Google Patents
Method for casing repair Download PDFInfo
- Publication number
- SU1710694A1 SU1710694A1 SU894710051A SU4710051A SU1710694A1 SU 1710694 A1 SU1710694 A1 SU 1710694A1 SU 894710051 A SU894710051 A SU 894710051A SU 4710051 A SU4710051 A SU 4710051A SU 1710694 A1 SU1710694 A1 SU 1710694A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- casing
- plaster
- patch
- repair
- outer sealing
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000011505 plaster Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 abstract description 6
- 239000000565 sealant Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
Abstract
Изобретение относитс к ремонту скважин, а именно к способу подземного ремонта обсадных колонн. Цель изобретени -повышение эффективности сцеплени пластыр с обсадной колонной в начальный момент работы формирующей головки. Это достигаетс тем, что перед спуском пластыр на концевые участки его наружного герметизирующего Покрыти нанос т зернистый материал твердостью, большей твердости материалов обсадной колонны и пластыр . При этом размер зернистого материала не превышает толщину стенки пластыр . Дл ремонта обсадной колонны осуществл ют спуск в интервал нагружени герметичности плadтыp в виде продольно гофрированного патрубка с наружным герметизирующим покрытием. Затем расшир ют его до плотного прижати к внутренней поверхности осадной трубы формирующей головкой. 1 ил.V.(ЛThe invention relates to the repair of wells, and in particular to a method for underground casing repair. The purpose of the invention is to increase the effectiveness of adhesion of the patch to the casing at the initial moment of operation of the forming head. This is achieved by the fact that, prior to descending, a plaster on the ends of its outer sealing coating is applied a granular material with a hardness greater than the hardness of the casing materials and the plaster. The size of the granular material does not exceed the thickness of the wall plaster. To repair the casing string, the padtyp is lowered into the tightness loading range in the form of a longitudinally corrugated tube with an outer sealing coating. It is then expanded to tightly press against the inner surface of the siege tube with a forming head. 1 il.V. (L
Description
Изобретение относитс к технике подземного ремонта, а именно к восстановлению герметичности обсадных колонн металлическими пластыр ми нефт ных, вод ных и газовых скважин.The invention relates to the technique of underground repair, in particular, to the restoration of the tightness of casing strings by metal adhesives of oil, water and gas wells.
Известен способ ремонта обсадной колонны , когда перед спуском в скважину пластыр на специальном устройстве типа ДОРН наружную поверхность его покрывают герметизирующим составом на основе наирита НТ.There is a known method for repairing a casing string when, before launching a plaster into a well, on a special device of the DORN type, its outer surface is covered with a sealing compound based on nairit NT.
Недостатком способа вл етс то, что с целью обеспечени сопр жени пластыр с колонной в начальный период его расшире ни конец пластыр со стороны захода дорнирующей головки устройства не покрывают герметиком. Длина этого участка соответствует величине 300-500 мм.The disadvantage of this method is that, in order to ensure that the patch is coupled with the column, in the initial period of its expansion, the end of the patch on the approach side of the dorning head of the device is not covered with a sealant. The length of this area corresponds to the size of 300-500 mm.
Кроме того, применение герметика НТ ограничено по температуре до +70° С и не обеспечивает достаточную адгезию между пластырем и обсадной колонной. Этот герметик токсичен в процессе его нанесени .In addition, the use of NT sealant is limited in temperature to + 70 ° C and does not provide sufficient adhesion between the plaster and the casing. This sealant is toxic during application.
При расширении пластыр прот жкой через него дорнирующей головки в начальный период не гарантируетс качественное сопр жение между колонной и пластырем. В результате чего существует веро тность продольного смещени пластыр по колонне .When expanding a patch by pulling a dorning head through it in the initial period, there is no guarantee of a good fit between the column and the patch. As a result, there is a likelihood of longitudinal displacement of the patch along the column.
Все эти недостатки не позвол ют обеспечить поставленную цель - локальную герметизацию обсадной колонны в скважине путем надежной установки пластыр .All these shortcomings do not allow to achieve the set goal - local sealing of the casing string in the well by means of reliable installation of the patch.
Известен способ, включающий в себ продольно-гофрированный пластырь, покрытый стеклотканью с отверждающейс The known method includes a longitudinally-corrugated plaster covered with fiberglass with cured
композицией на основе эпоксидной смолы, спуск к месту дефекта и расширение его до контактного сопр жени с внутренней поверхностью обсадной КОЛОННЫ с помощью специального транспортного устройства. a composition based on epoxy resin, descending to the place of defect and its expansion to contact interface with the inner surface of the casing with a special transport device.
Недостатком этого способа вл етс то, что в начальный период отсутствует гаранти качественного сопр жени пластыр с колонной (имеетс веро тность смещени пластыр по колонне). The disadvantage of this method is that in the initial period there is no guarantee of high-quality coupling of the patch with the column (there is a probability of displacement of the patch along the column).
Кроме того, технологи нанесени этого герметика непроста , материал токсичен, имеет короткую жизнеспособность (до 24 ч), что приводит к преждевременному затвердеванию .In addition, the technology of applying this sealant is not easy, the material is toxic, has a short viability (up to 24 hours), which leads to premature hardening.
Цель изобретени - повышение эффективности сцеплени ;пластыр с обсадной колонной в начальный момент работы дорнирующей головки.The purpose of the invention is to increase the adhesion efficiency of the patch to the casing at the initial moment of operation of the dorning head.
Эта цель достигаетс тем,,что перед спуском в скважину пластыр на концевые участки наружного герметизирующего покрыти нанос т зернистый материал твердостью , большей твердости материалов обсадной колонны и пластыр , и размером, не превышающим толщину стенки пластыр . Таким материалом может быть, например ,. а(бразивный камень, алмаз, твердый сплав.This goal is achieved by applying a plaster to the end sections of the outer sealing coating before applying the well to a granular material with a hardness greater than that of the casing material and plaster and a size not exceeding the wall thickness of the plaster. Such material may be, for example. and (brazivny stone, diamond, hard alloy.
Герметизирующим материалом может быть лента ГЕРЛЕНД-Д. Эта лента обладает хорошей пластичностью, самокле ща с , что позвол ет наносить на ее кле щуюс (рабочую) поверхность, в виде многогранной крошки твердый материал без применени дополнительного кле непосредственно перед наложением ленты на металлический пластырь.The sealing material can be a tape GERLEND-D. This tape has good ductility, self-adhesive, which makes it possible to apply a hard material on its adhesive (working) surface, in the form of a multifaceted crumb, without the use of additional glue immediately before applying the tape to a metal adhesive.
При расширении пластыр до сопр жени с обсадной трубой зернистый твердый материал своими гран ми врезаетс в обсадную колонну и пластырь, обеспечива прочный контакт на более коротком отрезке , чем,это происходит без его применени , и повышает коэффициент успешности и надежности установки пластыр ,.When the patch expands to mate with the casing, the granular solid material smashes into the casing and the patch with its edges, providing a strong contact at a shorter length than it does without using it, and increases the success rate and reliability of the patch installation.
Использу эти качества твердого материала , герметизирующий материал (ленту ГЕРЛЕН-Д) нанос т сразу от торца пластыр , не оставл технический пропуск на длине 300-500 мм дл . сопр жени обсадной трубы с пластырем в начальный период расширени дорнирующей головкой. Это позвол ет, сточки зрени герметизации ремонтируемого участка обсадной трубы, использовать пластырь на всей его длине.Using these qualities of solid material, the sealing material (tape GERLEN-D) applied immediately from the end of the patch, did not leave a technical pass on the length of 300-500 mm long. coupling the casing with a plaster in the initial period of expansion with a dorning head. This allows, from the standpoint of sealing the repaired section of the casing, to use a patch over its entire length.
Величину нанесени герметика с твердым зернистым материалом практически можно не ограничивать, однако, дл обеспечени надежности сцеплени пластыр с обсадной трубой, в начальный момент достаточно 200-400 мм, т.е. на одно-два кольца нанесенной ленты ГЕРЛЕН-Д с твердым зернистым материалом.The amount of application of the sealant with a solid granular material can practically not be limited, however, to ensure reliable adhesion of the patch to the casing, 200-400 mm is sufficient at the initial time, i.e. on one or two rings applied tape GERLEN-D with a solid granular material.
На чертеже-изображена заготовка пластыр .The drawing shows a blank patch.
Герметизирующий материал 1 с применением твердого зернистого материала в виде крошки -многогранной формы 2 нанос т на металлическую гофрированную трубу 3.The sealing material 1 using a solid granular material in the form of a crumble of a polyhedral form 2 is applied to a metal corrugated pipe 3.
Предложенное техническое решение повышает коэффициент успешности установки пластыр и устран ет необходимость оставл ть технологический участок без нанесени герметизирующего материала.The proposed solution improves the success rate of the installation of the patch and eliminates the need to leave the process area without applying a sealing material.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894710051A SU1710694A1 (en) | 1989-06-26 | 1989-06-26 | Method for casing repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894710051A SU1710694A1 (en) | 1989-06-26 | 1989-06-26 | Method for casing repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1710694A1 true SU1710694A1 (en) | 1992-02-07 |
Family
ID=21456516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894710051A SU1710694A1 (en) | 1989-06-26 | 1989-06-26 | Method for casing repair |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1710694A1 (en) |
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|---|---|---|---|---|
| US6328113B1 (en) | 1998-11-16 | 2001-12-11 | Shell Oil Company | Isolation of subterranean zones |
| US6470966B2 (en) | 1998-12-07 | 2002-10-29 | Robert Lance Cook | Apparatus for forming wellbore casing |
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| US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
| US6640903B1 (en) | 1998-12-07 | 2003-11-04 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US6712154B2 (en) | 1998-11-16 | 2004-03-30 | Enventure Global Technology | Isolation of subterranean zones |
| US6725919B2 (en) | 1998-12-07 | 2004-04-27 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US6745845B2 (en) | 1998-11-16 | 2004-06-08 | Shell Oil Company | Isolation of subterranean zones |
| US6823937B1 (en) | 1998-12-07 | 2004-11-30 | Shell Oil Company | Wellhead |
| US6968618B2 (en) | 1999-04-26 | 2005-11-29 | Shell Oil Company | Expandable connector |
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| US7048067B1 (en) | 1999-11-01 | 2006-05-23 | Shell Oil Company | Wellbore casing repair |
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| US7168499B2 (en) | 1998-11-16 | 2007-01-30 | Shell Oil Company | Radial expansion of tubular members |
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| US7360591B2 (en) | 2002-05-29 | 2008-04-22 | Enventure Global Technology, Llc | System for radially expanding a tubular member |
| US7363984B2 (en) | 1998-12-07 | 2008-04-29 | Enventure Global Technology, Llc | System for radially expanding a tubular member |
| US7377326B2 (en) | 2002-08-23 | 2008-05-27 | Enventure Global Technology, L.L.C. | Magnetic impulse applied sleeve method of forming a wellbore casing |
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| US7424918B2 (en) | 2002-08-23 | 2008-09-16 | Enventure Global Technology, L.L.C. | Interposed joint sealing layer method of forming a wellbore casing |
| US7438133B2 (en) | 2003-02-26 | 2008-10-21 | Enventure Global Technology, Llc | Apparatus and method for radially expanding and plastically deforming a tubular member |
| RU2338053C2 (en) * | 2007-02-08 | 2008-11-10 | Николай Александрович Богатов | Method of tubing repair |
| US7503393B2 (en) | 2003-01-27 | 2009-03-17 | Enventure Global Technology, Inc. | Lubrication system for radially expanding tubular members |
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| US7552776B2 (en) | 1998-12-07 | 2009-06-30 | Enventure Global Technology, Llc | Anchor hangers |
| US7571774B2 (en) | 2002-09-20 | 2009-08-11 | Eventure Global Technology | Self-lubricating expansion mandrel for expandable tubular |
| RU2375548C1 (en) * | 2008-12-10 | 2009-12-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Tubing string maintenance method |
| US7712522B2 (en) | 2003-09-05 | 2010-05-11 | Enventure Global Technology, Llc | Expansion cone and system |
| US7739917B2 (en) | 2002-09-20 | 2010-06-22 | Enventure Global Technology, Llc | Pipe formability evaluation for expandable tubulars |
| US7740076B2 (en) | 2002-04-12 | 2010-06-22 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
| US7775290B2 (en) | 2003-04-17 | 2010-08-17 | Enventure Global Technology, Llc | Apparatus for radially expanding and plastically deforming a tubular member |
| US7793721B2 (en) | 2003-03-11 | 2010-09-14 | Eventure Global Technology, Llc | Apparatus for radially expanding and plastically deforming a tubular member |
| US7819185B2 (en) | 2004-08-13 | 2010-10-26 | Enventure Global Technology, Llc | Expandable tubular |
| US7886831B2 (en) | 2003-01-22 | 2011-02-15 | Enventure Global Technology, L.L.C. | Apparatus for radially expanding and plastically deforming a tubular member |
| US7918284B2 (en) | 2002-04-15 | 2011-04-05 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
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| US6712154B2 (en) | 1998-11-16 | 2004-03-30 | Enventure Global Technology | Isolation of subterranean zones |
| US7299881B2 (en) | 1998-11-16 | 2007-11-27 | Shell Oil Company | Radial expansion of tubular members |
| US7357190B2 (en) | 1998-11-16 | 2008-04-15 | Shell Oil Company | Radial expansion of tubular members |
| US7275601B2 (en) | 1998-11-16 | 2007-10-02 | Shell Oil Company | Radial expansion of tubular members |
| US7270188B2 (en) | 1998-11-16 | 2007-09-18 | Shell Oil Company | Radial expansion of tubular members |
| US7246667B2 (en) | 1998-11-16 | 2007-07-24 | Shell Oil Company | Radial expansion of tubular members |
| US7231985B2 (en) | 1998-11-16 | 2007-06-19 | Shell Oil Company | Radial expansion of tubular members |
| US6328113B1 (en) | 1998-11-16 | 2001-12-11 | Shell Oil Company | Isolation of subterranean zones |
| US7168499B2 (en) | 1998-11-16 | 2007-01-30 | Shell Oil Company | Radial expansion of tubular members |
| US7121352B2 (en) | 1998-11-16 | 2006-10-17 | Enventure Global Technology | Isolation of subterranean zones |
| US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
| US7108072B2 (en) | 1998-11-16 | 2006-09-19 | Shell Oil Company | Lubrication and self-cleaning system for expansion mandrel |
| US6745845B2 (en) | 1998-11-16 | 2004-06-08 | Shell Oil Company | Isolation of subterranean zones |
| US7086475B2 (en) | 1998-12-07 | 2006-08-08 | Shell Oil Company | Method of inserting a tubular member into a wellbore |
| US7159665B2 (en) | 1998-12-07 | 2007-01-09 | Shell Oil Company | Wellbore casing |
| US6725919B2 (en) | 1998-12-07 | 2004-04-27 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US6739392B2 (en) | 1998-12-07 | 2004-05-25 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US7350564B2 (en) | 1998-12-07 | 2008-04-01 | Enventure Global Technology, L.L.C. | Mono-diameter wellbore casing |
| US6758278B2 (en) | 1998-12-07 | 2004-07-06 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
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