Title:
Oil recovery
United States Patent 3279538


Inventors:
Doscher, Todd M.
Application Number:
US26183063A
Publication Date:
10/18/1966
Filing Date:
02/28/1963
Assignee:
SHELL OIL CO
Primary Class:
Other Classes:
166/271, 166/272.2, 166/272.3, 166/304, 166/305.1
International Classes:
C09K8/58; C09K8/62
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US Patent References:
Foreign References:
CA560117A1958-07-08