Single flow valve of magnetic attraction type oil field water pouring well

• Main Author: ZHONGXIAO,ZHANG QIN
• Format: Patent
• Language: English
• Published: 20.12.2006
• 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 magnetic attraction type single flow valve for water injecting wells in oil fields. The utility model comprises an upper contact and a lower contact which are connected with a housing and has the technical scheme that a valve ball is arranged on a valve seat between the upper and the lower contacts. The utility model is characterized in that the upper contact (3) is communicated and connected with the magnet valve seat (2) and the lower contact (7) through the side face of the housing (1), the valve ball (4) is installed on the magnet valve seat (2), and a rubber nesting (5) of which the upper end is provided with a trapezoidal baffle plate (6) is arranged on the valve ball (4). The utility model has the advantages that the phenomenon that the ball is flushed out of a valve cavity is avoided and the service life is long. The utility model not only eliminates the back flow of stratum water because of the fluctuation of pump pressure and the perforation of pipelines in water injecting wells and overcomes the sand production of oil layers, but also lightens the pulse water injecting phenomenon caused by the vibration of the valve ball and enhances the quality of water injection.