Methods of using crosslinkable compositions
US7306039B2 · kind B2 · utility
32Cited by
40References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Feb 8, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/926
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermal insulating packer fluid contains water and/or brine, a crosslinkable viscosifying polymer, a crosslinking agent and an optional set retarder. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is such as to reduce the convection flow velocity within the annulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.