Cement-based particulates and methods of use
US8183186B2 · kind B2 · utility
59Cited by
80References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 5, 2008 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Sep 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods of making particulates for use in a subterranean application comprising: providing particulates of a settable composition comprising a cementitious material, a filler material, and an activator of the cementitious material; and pre-curing the particulates until the particulates reach a crush strength of about 50 psi or greater; and curing the pre-cured particulates at a temperature in the range of about 230° F. to about 600° F., so that at least a portion of the particulates comprise a newly formed crystalline phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.