Permeable cement composition and method
US3948672A · kind A · utility
136Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Sep 26, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/502
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to an improved method of and composition for the treatment of an incompetent formation penetrated by a wellbore to prevent the movement of sand particles from the formation to the wellbore during recovery of the formation fluids by forming a treating composition of sand, cement, water and xanthan gum in a hydrocarbon carrier oil, injecting the treating composition into the formation under pressure, permitting the cement to set and form a permeable barrier film between the formation and wellbore and recovering fluids from the formation through the formed permeable cement barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.