High temperature lightweight foamed cements
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 3, 1989
Grant Date -
N/A
app pub date -
Sep 17, 1987
filing date -
Sep 17, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully