Methods for extracting oil from tar sand

Wells – Processes – Electric current or electrical wave energy through earth for...

Reexamination Certificate

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C166S245000, C166S302000

Reexamination Certificate

active

07617869

ABSTRACT:
Hydrocarbon containing formations can be processed using an in-situ liquefaction technique. This new technique embodies systematic temperature elevation applied to subsurface formation allowing recoverable hydrocarbons to reach a Newtonian fluid viscosity suitable for extraction.

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