Thermal mineral extraction system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 15, 1994
Grant Date -
N/A
app pub date -
Nov 4, 1992
filing date -
Mar 30, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Material is thermally extracted from an underground formation with the aid of heat supplied by electrical resistance heaters (21) or by tubing (5, 6) serving as such, or by heated fluid conveyed downhole in pipes (12), which may serve as electrical conductors, or as resistance heaters, or which may be heated downhole. The fluid may be circulated upwardly after passage through a downhole pump unit where the fluid is suitable.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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