Engineered fibers for well treatments
US8371381B2 · kind B2 · utility
48Cited by
42References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Apr 11, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Mixtures of fibers and solid particles are effective for curing fluid losses and lost circulation in a subterranean well. Stiff fibers are more effective than flexible ones; however, mixtures of stiff and flexible fibers have a synergistic effect. The quantity and particle-size distribution of the solids are optimized according to the stiffness, dimensions and concentrations of fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.