Cement compositions containing degradable materials and methods of cementing in subterranean formations
US7172022B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Mar 26, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/0067
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides cement compositions that include degradable materials, and methods of using such compositions in subterranean cementing operations. An example of a method of the present invention includes: providing a cement composition that includes a hydraulic cement, and a degradable material; placing the cement composition in a subterranean formation; allowing the cement composition to set therein; and allowing the degradable material to degrade. Another example of a method of the present invention is a method of enhancing the mechanical properties of a cement composition including adding a degradable material to the cement composition and allowing the degradable material to degrade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.