Title:
CORE DRILLING WITH AIR CONTAINING POLYMER IN OIL
Document Type and Number:
United States Patent US3718195
Export Citation:
Assignee:
AMOCO PROD CO,US
Primary Class:
Other Classes:
International Classes:
E21B21/16; E21B25/08; E21B21/00; E21B25/00; (IPC1-7): E21B49/02
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