RU95101474A - Method of reverse cementing of casing strings in well - Google Patents
Method of reverse cementing of casing strings in wellInfo
- Publication number
- RU95101474A RU95101474A RU95101474/03A RU95101474A RU95101474A RU 95101474 A RU95101474 A RU 95101474A RU 95101474/03 A RU95101474/03 A RU 95101474/03A RU 95101474 A RU95101474 A RU 95101474A RU 95101474 A RU95101474 A RU 95101474A
- Authority
- RU
- Russia
- Prior art keywords
- casing
- grouting mortar
- string
- injection
- pipe string
- Prior art date
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
FIELD: mining. SUBSTANCE: poppet check valve is installed on lower end of casing string run into well. Poppet check valve opens under the action of force from top to bottom. Prior to injection of grouting mortar into annular space, washover pipe string and pipe string-casing annular filled with fluid and back pressure is built up, after which, washover pipe string is lowered down to open spring-loaded poppet check valve, and grouting mortar is injected to casing string-borehole annulus, and the value of back pressure is regulated on the flow line of washover pipe string at wellhead, and quality of grouting mortar is controlled. Injection of grouting mortar to casing string-borehole annulus is determined by appearance from flow line of washover pipe string at wellhead of grouting mortar of the required composition. EFFECT: reduced time and material expenditures and means for casing cementation in well and higher quality of cementation under any mining and geological conditions injection of grouting mortar of any density at any velocity and pressure and reaching of casing shoe with grouting mortar of the required properties with full exclusion of its getting into casing string.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU95101474A RU2086752C1 (en) | 1995-02-15 | 1995-02-15 | Method for back-cementation of casing string in well |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU95101474A RU2086752C1 (en) | 1995-02-15 | 1995-02-15 | Method for back-cementation of casing string in well |
Publications (2)
Publication Number | Publication Date |
---|---|
RU95101474A true RU95101474A (en) | 1996-12-20 |
RU2086752C1 RU2086752C1 (en) | 1997-08-10 |
Family
ID=20164474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU95101474A RU2086752C1 (en) | 1995-02-15 | 1995-02-15 | Method for back-cementation of casing string in well |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2086752C1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6920929B2 (en) * | 2003-03-12 | 2005-07-26 | Halliburton Energy Services, Inc. | Reverse circulation cementing system and method |
US7013971B2 (en) * | 2003-05-21 | 2006-03-21 | Halliburton Energy Services, Inc. | Reverse circulation cementing process |
US7204304B2 (en) | 2004-02-25 | 2007-04-17 | Halliburton Energy Services, Inc. | Removable surface pack-off device for reverse cementing applications |
US7322412B2 (en) | 2004-08-30 | 2008-01-29 | Halliburton Energy Services, Inc. | Casing shoes and methods of reverse-circulation cementing of casing |
US7303008B2 (en) * | 2004-10-26 | 2007-12-04 | Halliburton Energy Services, Inc. | Methods and systems for reverse-circulation cementing in subterranean formations |
US7654324B2 (en) | 2007-07-16 | 2010-02-02 | Halliburton Energy Services, Inc. | Reverse-circulation cementing of surface casing |
-
1995
- 1995-02-15 RU RU95101474A patent/RU2086752C1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2086752C1 (en) | 1997-08-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20080216 |