Method for reducing trapped pressure of ultrahigh density narrow window saline layer

The invention discloses a method for reducing the trapped pressure of an ultrahigh density narrow window saline layer. The method comprises the following steps that (a) well overflowing occurs, a pump is shut down, a well is closed, whether the saline layer is entered or not is judged according to l...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHI ZHENXING, WANG SHUCHAO, CHENG TIANHUI, WANG WEITAO
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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