Thermal insulation compositions containing organic solvent and gelling agent and methods of using the same
US7713917B2 · kind B2 · utility
5Cited by
7References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Oct 20, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/592
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A thermal insulating composition containing an organic solvent of low thermal conductivity and a gelling agent hydratable in the solvent is useful for controlling heat transfer from a production tubing or transfer pipe in a wellbore to a surrounding annuli and/or the environment. Further, the composition is capable of reducing convection flow velocity within the annulus surrounding production tubing or a transfer pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.