Breaker fluids and methods of using the same
US8227382B2 · kind B2 · utility
50Cited by
17References
33Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 24, 2008 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Apr 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/935
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of cleaning a wellbore drilled with a drilling fluid that forms a filter cake that includes emplacing a breaker fluid into the wellbore, the breaker fluid comprising: an aqueous fluid; a fragmentation agent; and an amphoteric chemotrope; and shutting in the well for a period of time sufficient to initiate breaking of the filter cake is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.