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Because we put a piston in the annular tubes the oil passage so that we can have a   constant and high rate of production.  Say is a powerful suction tool The sixth generation   mechanical deplugging oil recovery device    Petroleum is the blood to the industry. It is an  important energy source that man relies on to  survive. However, during the oil production  in the oil fields all over the world, the oil   throughput is declining   year over year. This is because the oil channel is gradually clogged by the solid particles in the drilling fluids, the acid cracking deposits and the contaminated wax crystals, which reduce the penetration rate of the oil layer. As the technical professionals in the petroleum industry, it is our highest duty to increase and stabilize the oil production throughput. As result, through research and development, our company has released this clog loosen up device in the oil well - Mechanical Plug-Open oil recovery device, which will prevent the oil throughput from declining and give the low yield and low efficiency oil fields a new life.     Working Principle The mechanical deplugging oil recovery device is to utilize the energy of the oil pipe from the creeping motion of extension and contraction to generate a vibration force of 100kg and pumping force of 5 ton to the oil layer. These long lasting vibration and pumping forces force the various sticky and deposit materials to loosen up therefore reposition themselves. This will reduce the cohesiveness among the materials therefore gradually push the clogged materials sticking together to move away from their original positions and make rooms for the oil passage. Meanwhile, the multi- frequency waves generated by the vibration disks and liquid whistling springs apply the forces to the fluid, sometimes extension and sometime contraction. This mixing effect makes it more difficult for the wax and deposit crystals in grow in size, therefore prevent the oil layer from being clogged by the wax and deposit materials. This will stop the production throughput from declining therefore increase and stabilize the oil production. The process is as follows.