Oil well depth measuring device

The utility model belongs to the technical field of oil wells, and particularly relates to an oil well depth measuring device which comprises a digital measuring system and a mechanical measuring system, a guide wheel assembly is connected between the digital measuring system and the mechanical meas...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG LANJIANG, XIA ZHUJUN, DENG CHAO, GONG YISHUN, LI SHIJU, CAO PENGFEI
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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