Breaking and falling object preventing device for oil well pipe column

• Main Authors: LIU JIAWEN, YUAN HUIYING, TANG FAN, YANG HUANYING, FENG JIANSHE, LUO CONGYING, LU MEI, LING YONGGANG, WANG SHANGWEI, REN PENG, YAO YANG, CHANG PENGXU, MA LIJUN, CHENG HAO, HUO CHUNSHAN, CHANG YANRONG, LUO YOUGANG
• Format: Patent
• Language: English
• Published: 15.04.2015
• 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 invention discloses a breaking and falling object preventing device for an oil well pipe column, and the breaking and falling object preventing device is specially designed for preventing the falling object and avoiding the damage of the sleeve and pipe column. The device is as follows: an inter...