In-situ formation of solids for well completions and zonal isolation
US7810562B2 · kind B2 · utility
7Cited by
10References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 11, 2008 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Jan 2, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A sol of metallic alkoxide is pumped into a desired location in a wellbore and allowed to gel, creating solids in-situ. The sol is either unstabilized, requiring rapid placement before gelling, or the sol is stabilized, permitting off-site mixing. Sols can be stabilized with either surfactant or with interfacial polymers. Large concentrations of surfactant can be placed in the sol to create templates around which gelation occurs, creating porous solids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.