Fracturing well formations using foam
US3980136A · kind A · utility
116Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1974 |
| Grant date | Sep 14, 1976 |
| Priority date | — |
| Expiry date | Apr 5, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Foam fracturing fluids and methods for fracturing well formations using foam as the carrier for the propping agent are disclosed. The foams are stiff stable foams formed of a relative large amount of gas and a relative small amount of liquid. The foams are stable at surface pressures and remain stable when delivered into the well formation at the bottom of the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.