Hydraulic balancing anti-wear pumping pump

Shengxin Oilfield Dongxin Oil Production Plant for oil well pipe, rod partial hard to deal with the problem of governance, developed a special structure of the pump --- hydraulic balance anti-eccentric pump, recently won the national patent. The pump changed the suction pump, the drainage method to achieve the next stroke suction, the discharge of the work on the way. Its most important feature is that during the aspirating process, the plunger automatically descends and pulls down the sucker rod by a large hydraulic feedback force, so that the sucker rod is always in a stretched state, rather than under the sucker rod Plunger down to improve the pole of the force state, reducing the bending of the pole, to prevent the pipe, pole friction wear. At the same time, on the upstroke, due to the draining valve design of a large runway, discharge resistance is greatly reduced, making polished rod hanging point load decreases, played a role in saving energy and reducing consumption. At present, this new pump is being applied in Dongxin Oil Production Plant of Shengli Oilfield.