Insulating annular fluid
US10400155B2 · kind B2 · utility
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14References
19Claims
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Key dates
| Filing date | Jul 8, 2013 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B36/003
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A insulating annular fluid for reducing convective currents in the annular region a wellbore is provided that includes an oleaginous fluid, a silica, and, in some embodiments, organoclay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.