Underground screw pump and construction method for penetrating underground screw pump

The invention discloses an underground screw pump and a construction method for penetrating the underground screw pump. The underground screw pump comprises a positioning pin, the positioning pin is connected to the lower end of a stator, and a center hole allowing a construction instrument or a too...

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Bibliographische Detailangaben
Hauptverfasser:	WU YUNGANG, LI JIMEI, AN TAO, BI YOUJUN, ZHANG TAIBIN, ZHANG HONG, LIU YANHUI, YANG YUSHENG, MA QINGLI, JIANG HONGMEI, WANG MEI, HAN TONGFANG, WANG HONGYI, SUN JINGGUANG, LU YUNXIAO, HUANG JIANSHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses an underground screw pump and a construction method for penetrating the underground screw pump. The underground screw pump comprises a positioning pin, the positioning pin is connected to the lower end of a stator, and a center hole allowing a construction instrument or a tool to pass through is formed in the positioning pin. During construction, the lower end of the stator is connected to the positioning pin, the upper end of the stator is connected to a pump upper pipe column, the lower end of the positioning pin is connected to a pump lower pipe column, and the lower end of the positioning pin is lowered to a preset depth in a well; the construction instrument or the tool is connected to the lower end of a construction cable or a rod pipe, and a sliding centralizer is installed on the construction cable or the rod pipe above the construction instrument or the tool; and the construction cable or the rod pipe are lowered to enable the construction instrument or the tool to pass throug