Strong magnetic liquid-relief valve

• Main Author: CHENGLIN XU
• Format: Patent
• Language: English
• Published: 13.09.2006
• 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 strong magnetic liquid drainage valve which is mainly composed of a bottom liquid drainage valve and a magnetic force bar. The bottom liquid drainage valve is mainly composed of an outer barrel, a ball seat and a valve ball, wherein the outer barrel is screwed with the ball seat and the valve ball is positioned in the outer barrel and on the ball seat. The magnetic force bar is mainly composed of a magnetic isolation righting barrel, a strong magnetic core and a strong magnetic seat, wherein magnetic isolation righting barrel is screwed with the strong magnetic seat, the strong magnetic core is positioned in a cavity formed after the magnetic isolation righting barrel is connected with the strong magnetic seat, the outer cylindrical surface of the magnetic isolation righting barrel is provided with a righting strip and a liquid flow passage and the lower surface of the strong magnetic seat is provided with a spherical surface which is convenient for the contact with the valve ball. The strong magnetic liquid drainage valve is mainly used for testing the sealing performance of pipe columns of oil and water wells and is an underground tool capable of draining liquid in the pipe columns into well barrels through the throwing of the magnetic force bar after tests.