High temperature lightweight foamed cements
Patent
·
OSTI ID:7270126
Cement slurries are disclosed which are suitable for use in geothermal wells since they can withstand high temperatures and high pressures. The formulation consists of cement, silica flour, water, a retarder, a foaming agent, a foam stabilizer, and a reinforcing agent. A process for producing these cements is also disclosed. 3 figs.
- DOE Contract Number:
- AC02-76CH00016
- Assignee:
- Associated Universities, Inc., Washington, DC (United States)
- Patent Number(s):
- US 4871395; A
- Application Number:
- PPN: US 7-097737
- OSTI ID:
- 7270126
- Resource Relation:
- Patent File Date: 17 Sep 1987
- Country of Publication:
- United States
- Language:
- English
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