Cylindrical well plugging device

• Main Authors: REN QINGSHENG, FU XIUMING
• Format: Patent
• Language: Chinese; English
• Published: 19.01.2011
• Subjects: 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

The utility model relates to a well plugging device for oil field drilling, oil extraction and workover treatment well head control, in particular to a cylindrical well plugging device consisting of a shell, a cylindrical valve body assembly and an actuating mechanism. When needing to seal the well,...