Small-flow constant-flow blanking plug for low-permeability oil field

The invention relates to a small-flow constant-flow blanking plug for a low-permeability oil field. The problems that the actual water injection rate of an existing blanking plug changes along with pressure fluctuation, the testing time is long, and a small-flow injection allocation layer cannot be...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GUO YING, ZHANG LING, ZONG HEMING, TONG YIN, ZHAO QISHAN, YUE QINGFENG, WANG JINGQI, CAI MENG, LI JINGHUI, WANG CHAO, GAO GUANGLEI
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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