High density fluid for completion applications
US11591505B2 · kind B2 · utility
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15References
13Claims
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Key dates
| Filing date | Apr 28, 2021 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Jun 18, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/062
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A modified high density brine for use in subterranean drilling and completion operations. The modified high density brine includes a heavy brine and the addition of high density particles. The resultant modified high density brine eliminates the need for toxic, corrosive, and costly ZrBr2 or cesium formate additions or other ionic additives to boost the density of the modified high density brine to more than 14 lbs./gallon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.