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Application filed by Meeng-Fu JennfiledCriticalMeeng-Fu Jenn
Priority to TW83102353ApriorityCriticalpatent/TW281715B/en
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Publication of TW281715BpublicationCriticalpatent/TW281715B/en
A piercing well digging method which is: put a attacking head on end of metal pipe and by beating to dig into the ground then insert a plastic pipe inside the metal pipe with filter material in between. Pull out the metal pipe while leave the attacking head in the ground to form a hole of well.
TW83102353A1994-03-181994-03-18The piercing well digging method
TW281715B
(en)
"IMPROVEMENTS INTRODUCED IN A SUB-SURFACE TEST TREE INTENDED TO BE SUSPENDED IN A PILE OF DISCHARGE IMPEDITORS IN WELLS LOCATED INSIDE THE SEA".