The utility model discloses an underground oil sleeve intercommunication valve, including sleeve and the
upper joint and lower joint of fixed in the upper and lower ends of sleeve respectively, the
upper joint is connected with the lower end of oil
pipe, and the inner seal sliding sleeve is arranged in the middle part of the cavity of sleeve, and the
sucker rod is arranged in the sleeve and is through the sleeve and inner seal sliding sleeve, and the lower part side of
sucker rod is connected with control
coupling, and the bottom of the
upper joint in the sleeve is provided with upper card
station, and the upper and lower ends of inner seal sliding sleeve are provided with elastic inner clamping claw, and elastic inner clamping claw is matched with upper card
station and lower card
station respectively, the utility model is used for the oil and
water well workover operation process, and when lifting oil
pipe, the oil and water in the oil
pipe are arranged back to the well, and when the
oil well needs to be washed hot, the
sucker rod is lifted to open the oil
discharge passage, and the oil sleeve space is communicated, can be washed well, and after well washing, the sucker rod is lowered, the passage is closed, and the oil is pumped normally, preventing the environmental
pollution caused by falling.