DOWNHOLE TIME-DOMAIN PULSED ELECTROMAGNETIC METHOD FOR DETECTING RESISTIVITY OF STRATUM OUTSIDE METAL CASED PIPE

Disclosed is a downhole time-domain pulsed electromagnetic method for detecting the resistivity of a stratum outside a metal cased pipe and having steps of: 1) constructing a high-power pulse emission source in the well; receiving time-varying data of an induced electromotive force e generated by a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG, JUNMIN, SU, ZHULIU, LIU, DIREN, CHEN, QINGLI, XIANG, KUI, YAN, LIANGJUN, XU, ZHENPING, LUO, MINGZHANG, TANG, XINGONG, HU, WENBAO, MAO, YURONG, XIE, XINGBING
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	DETECTING MASSES OR OBJECTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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