RU2008122711A - METHOD FOR ISOLATING WELL-ABSORBED ZONES - Google Patents
METHOD FOR ISOLATING WELL-ABSORBED ZONES Download PDFInfo
- Publication number
- RU2008122711A RU2008122711A RU2008122711/03A RU2008122711A RU2008122711A RU 2008122711 A RU2008122711 A RU 2008122711A RU 2008122711/03 A RU2008122711/03 A RU 2008122711/03A RU 2008122711 A RU2008122711 A RU 2008122711A RU 2008122711 A RU2008122711 A RU 2008122711A
- Authority
- RU
- Russia
- Prior art keywords
- well
- formation
- reagents
- cement
- urea
- Prior art date
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
1. Способ изоляции зон поглощения в скважине путем последовательной закачки в скважину вязкоупругого состава и цементного раствора, отличающийся тем, что в зону поглощения скважины закачивают концентрированный водный раствор реагентов, способных образовывать трехмерную структуру в пласте, а затем цементный раствор, затворяемый на разбавленном растворе реагентов. ! 2. Способ по п.1, отличающийся тем, что в качестве реагентов для образования трехмерной структуры в пласте используют хлористый алюминий, карбамид и уротропин при следующем соотношении, мас.%: ! Хлористый алюминий4-8Карбамид15-30Уротропин0-6ВодаОстальное ! 3. Способ по п.1, отличающийся тем, что в качестве жидкости затворения цемента используют разбавленный в 3-20 раз водный раствор реагентов.1. The method of isolating the absorption zones in the well by sequentially injecting a viscoelastic composition and a cement slurry into the well, characterized in that a concentrated aqueous solution of reagents capable of forming a three-dimensional structure in the formation is pumped into the well absorption zone, and then a cement solution closed on a dilute reagent solution . ! 2. The method according to claim 1, characterized in that as reagents for the formation of a three-dimensional structure in the formation using aluminum chloride, urea and urotropine in the following ratio, wt.%:! Aluminum chloride 4-8 Urea 15-30 Urotropin 0-6 Water Else! 3. The method according to claim 1, characterized in that the cement reagent liquid is diluted 3-20 times with an aqueous solution of reagents.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008122711/03A RU2382174C1 (en) | 2008-06-04 | 2008-06-04 | Well absorption zone sealing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008122711/03A RU2382174C1 (en) | 2008-06-04 | 2008-06-04 | Well absorption zone sealing method |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2008122711A true RU2008122711A (en) | 2009-12-10 |
RU2382174C1 RU2382174C1 (en) | 2010-02-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2008122711/03A RU2382174C1 (en) | 2008-06-04 | 2008-06-04 | Well absorption zone sealing method |
Country Status (1)
Country | Link |
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RU (1) | RU2382174C1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2436748B1 (en) * | 2010-10-04 | 2013-06-05 | Wintershall Holding GmbH | Method for producing crude oil from subterranean crude oil storage areas |
EP2568029B1 (en) | 2011-09-08 | 2014-04-02 | Wintershall Holding GmbH | Method for transporting crude oil from subterranean crude oil storage areas |
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2008
- 2008-06-04 RU RU2008122711/03A patent/RU2382174C1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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RU2382174C1 (en) | 2010-02-20 |
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Date | Code | Title | Description |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20170605 |