Viscoelastic surfactant-based treatment fluids for use with lost circulation materials
US11535794B1 · kind B1 · utility
3Cited by
3References
19Claims
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Key dates
| Filing date | Jul 16, 2021 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Jul 16, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compositions of lost circulation materials and methods for using the same in subterranean formations can include introducing a treatment fluid into a wellbore penetrating at least a portion of a subterranean formation including a loss zone, the treatment fluid including an aqueous base fluid, at least one viscoelastic surfactant, at least one component selected from the group consisting of: a divalent salt, a metal salt, a metal oxide, and any combination thereof, and a lost circulation material; and allowing the treatment fluid to at least partially plug the loss zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.