Controlled retracting gasifying agent injection point process fo

Details Controlled retracting gasifying agent injection point process fo Controlled retracting gasifying agent injection point process fo

1987-08-24

1988-07-05

Suchfield, George A.

Wells

Processes

In situ combustion

166 50, 166 57, 166 64, 166317, 166325, E21B 3406, E21B 43243

Patent

active

047548118

ABSTRACT:
New controlled retracting gasifying agent injection point process for UCG sites.
The process consists of a retraction of the gasifying agent injection point achieved by gradually plugging the tubing ends either by pneumatic injection of inert granulated material with a thermosetting binder, or by closing valves set at regular intervals inside the tubings.

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