Method for treating subterranean formation with degradable material
US8695708B2 · kind B2 · utility
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37References
32Claims
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Key dates
| Filing date | Sep 1, 2010 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Jul 13, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for treating a subterranean formation penetrated by a wellbore is provided. The method includes providing a treatment fluid containing a viscoelastic surfactant having at least one degradable linkage, a hydrolysable material, and a pH control material, and injecting the treatment fluid into a subterranean formation. The pH control material may have a pH equal or greater than about 9 and may include a strongly alkaline material and an oxidizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.