发明名称 |
PROCESS OF CONTROLLED WITHDRAWAL OF THE GASIFYING AGENT INJECTION POINT |
摘要 |
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. |
申请公布号 |
AU5425986(A) |
申请公布日期 |
1986.09.11 |
申请号 |
AU19860054259 |
申请日期 |
1986.03.04 |
申请人 |
INST DEV GAZEIFIC SOUTERRAINE |
发明人 |
LEDENT, PIERRE;SONNTAG, CLAUS |
分类号 |
E21B33/138;E21B34/06;E21B43/243;E21B43/247;E21B43/30 |
主分类号 |
E21B33/138 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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