Methods and aqueous based wellbore fluids for reducing wellbore fluid loss and filtrate loss
US9896610B2 · kind B2 · utility
2Cited by
20References
11Claims
0Family size
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Key dates
| Filing date | May 4, 2009 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/5751
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Embodiments disclosed herein relate to aqueous based wellbore fluids for preventing wellbore fluid loss downhole containing at least one copolymer formed from at least one natural polymer monomer and at least one latex monomer, and an aqueous base fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.