Method for facilitating the production of viscous petroleum through a well
United States Patent 3196947
US Patent References:
/0806559.html
- - 0806559
Well cleaner
- - 1484601
Pumping viscous fluids
- - 2530673
Method and apparatus for mining sulfur and other substances capable of being modified by heat
- - 2754098
/0806559.html
- - 0806559
Well cleaner
- - 1484601
Pumping viscous fluids
- - 2530673
Method and apparatus for mining sulfur and other substances capable of being modified by heat
- - 2754098
Inventors:
Poollen, Hendrik Van K.
Publication Date:
07/27/1965
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Assignee:
MARATHON OIL CO
Primary Class:
Other Classes:
166/310, 137/237, 166/369, 166/105
International Classes:
E21B43/00