Multilayer well casing

The present invention relates to a multilayer well casing. The multilayer well casing includes an outer tube, an inner tube, packed cartridges, a first blocking unit, a second blocking unit, a pump, a plurality of stripping plates and a gas introducing tube. A tube wall of the inner tube has screen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HUNG, WAN-TUN, CHEN, PO-MIN, HUANG, CHIN-LIEN, WANG, CHIH-LIANG, KUO, YUIA, YANG, PO-MING, CHEN, CHING-YUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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