Single-feedback-channel vortex cavity type pressure pulse generating device

The invention provides a single-feedback-channel vortex cavity type pressure pulse generating device, and relates to the technical field of underground equipment. The single-feedback-channel vortex cavity type pressure pulse generating device comprises an outer pipe, and an upper connector and a low...

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Bibliographische Detailangaben
Hauptverfasser:	MAO CHUNZHI, ZHANG SHAOHE, SUN PINGHE, ZHANG XINXIN, WU DONGYU, TANG LUBO, WU ZHANGHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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