Orthoester compositions and methods of use in subterranean applications
US7140438B2 · kind B2 · utility
52Cited by
138References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Mar 10, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2996
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to methods and compositions for treating subterranean formations, and more specifically, to improved methods and compositions for generating acids for use downhole, for example, to at least partially degrade the acid-soluble portions of filter cakes deposited in subterranean formations. In one embodiment, the present invention provides a method of degrading an acid-soluble portion of a filter cake comprising contacting the acid-soluble portion of the filter cake with an acid generated from an orthoester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.