Well stimulation method using foamed acid
US4237975A · kind A · utility
18Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1978 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Apr 11, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/933
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improved fluid loss control is realized in an acidizing treatment of a subterranean formation of the type using foamed acid, particularly in a foamed fracture acidizing type treatment, by injecting a gelled, substantially unfoamed fluid as a pad ahead of the foamed acid. I.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.