GB2003958A - Sealing perforations in a well casing - Google Patents
Sealing perforations in a well casingInfo
- Publication number
- GB2003958A GB2003958A GB7833818A GB7833818A GB2003958A GB 2003958 A GB2003958 A GB 2003958A GB 7833818 A GB7833818 A GB 7833818A GB 7833818 A GB7833818 A GB 7833818A GB 2003958 A GB2003958 A GB 2003958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- perforations
- well casing
- casing
- ball sealers
- carrying liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/261—Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- External Artificial Organs (AREA)
- Details Of Garments (AREA)
- Pipe Accessories (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Perforations in a well casing are sealed by injecting into the casing a carrying liquid containing ball sealers, these ball sealers having a density less than that of the carrying liquid and being of a size to plug the perforations. The liquid is injected at a matrix flow rate less than that which would fracture the formation surrounding the casing and at a velocity sufficient to overcome the buoyance of the ball sealers so as to transport them downward so as to seat on the perforations. In this way formation strata can be sequentially treated by the temporary closing of perforations in the well casing during the treatment.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83072877A | 1977-09-06 | 1977-09-06 | |
US05/914,649 US4160482A (en) | 1977-09-06 | 1978-06-12 | Ball sealer diversion of matrix rate treatments of a well |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2003958A true GB2003958A (en) | 1979-03-21 |
GB2003958B GB2003958B (en) | 1982-03-10 |
Family
ID=27125395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7833818A Expired GB2003958B (en) | 1977-09-06 | 1978-08-18 | Ball sealer diversion of matrix rate treatments of a well |
Country Status (8)
Country | Link |
---|---|
AU (1) | AU511891B2 (en) |
CA (1) | CA1076023A (en) |
DE (1) | DE2838479C2 (en) |
GB (1) | GB2003958B (en) |
MX (1) | MX152726A (en) |
MY (1) | MY8500110A (en) |
NL (1) | NL7808508A (en) |
NO (1) | NO151169C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2253426A (en) * | 1991-03-05 | 1992-09-09 | Exxon Production Research Co | Well treatment using ball sealers |
CN113266316A (en) * | 2021-07-02 | 2021-08-17 | 西安航空职业技术学院 | Gas production device and method for wellhead |
CN114458233A (en) * | 2022-03-25 | 2022-05-10 | 西南石油大学 | Special-shaped structure temporary blocking ball with double-layer structure |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4244691C2 (en) * | 1992-08-26 | 1995-03-16 | Hewlett Packard Gmbh | Insertion mechanism for a fetal scalp electrode |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2754910A (en) * | 1955-04-27 | 1956-07-17 | Chemical Process Company | Method of temporarily closing perforations in the casing |
US2933136A (en) * | 1957-04-04 | 1960-04-19 | Dow Chemical Co | Well treating method |
DE1139453B (en) * | 1959-12-30 | 1962-11-15 | Dow Chemical Co | Method for treating wells |
US3437147A (en) * | 1967-02-23 | 1969-04-08 | Mobil Oil Corp | Method and apparatus for plugging well pipe perforations |
-
1978
- 1978-07-21 CA CA307,831A patent/CA1076023A/en not_active Expired
- 1978-08-14 AU AU38862/78A patent/AU511891B2/en not_active Expired
- 1978-08-16 NL NL7808508A patent/NL7808508A/en not_active Application Discontinuation
- 1978-08-18 GB GB7833818A patent/GB2003958B/en not_active Expired
- 1978-08-29 MX MX174685A patent/MX152726A/en unknown
- 1978-09-04 DE DE2838479A patent/DE2838479C2/en not_active Expired
- 1978-09-05 NO NO783024A patent/NO151169C/en unknown
-
1985
- 1985-12-30 MY MY110/85A patent/MY8500110A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2253426A (en) * | 1991-03-05 | 1992-09-09 | Exxon Production Research Co | Well treatment using ball sealers |
CN113266316A (en) * | 2021-07-02 | 2021-08-17 | 西安航空职业技术学院 | Gas production device and method for wellhead |
CN114458233A (en) * | 2022-03-25 | 2022-05-10 | 西南石油大学 | Special-shaped structure temporary blocking ball with double-layer structure |
Also Published As
Publication number | Publication date |
---|---|
CA1076023A (en) | 1980-04-22 |
AU3886278A (en) | 1980-02-21 |
AU511891B2 (en) | 1980-09-11 |
NO783024L (en) | 1979-03-07 |
MX152726A (en) | 1985-10-23 |
DE2838479A1 (en) | 1979-03-15 |
NO151169C (en) | 1985-02-20 |
NL7808508A (en) | 1979-03-08 |
MY8500110A (en) | 1985-12-31 |
DE2838479C2 (en) | 1983-08-25 |
GB2003958B (en) | 1982-03-10 |
NO151169B (en) | 1984-11-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960818 |