Methods of sealing expandable pipe in well bores and sealing compositions
US6722433B2 · kind B2 · utility
92Cited by
22References
103Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Aug 3, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/50
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides methods and compressible foamed sealing compositions for sealing expandable pipe in well bores. The compressible sealant compositions for sealing expandable pipe are basically comprised of a hydraulic cement, a rubber latex, a rubber latex stabilizer, a gas and a mixture of foaming and foam stabilizing surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.