Fiber configurations for wellbore treatment compositions
US10941337B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Oct 11, 2017 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Oct 11, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Suspension of proppants in hydraulic fracturing applications can be strongly affected by the cross-sectional shapes and lengths of the fibers present in the wellbore treatment compositions. For instance, it has been observed that crimped cellulose ester fibers with a trilobal cross-section and an optimized length can provide enhanced suspension of proppants in aqueous fracturing fluids. Furthermore, the present invention demonstrates that non-round cellulose ester fibers can provide superior proppant suspension properties relative to polylactic acid fibers with a round cross-section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.