Rocking machine: prospects for improvement and problems

A rocking machine is very often called the drive of a sucker-hole pump. It is one of the most important components of the borehole rod assembly, which is designed to lift liquid from wells. The rocking machine has the function of ensuring the movement of the pump ram through the numerous columns of the pumping rods.

Pumping installation

It should be understood that the machines for production do not quite correspond to their purpose and device. They do not pump, but simply drive the pump, which is lowered into the well for pumping out. The surface part and the pumping unit are today rather conservative equipment complexes. Their most important constructive elements did not change decades after creation.

Rocking machines today

Modern rocking machines consist directly of the transforming mechanism, the drive motor, the reduction gear, the V-belt drive, the rack, and the frame. Judging by the world experience, the approximate service life of this facility is more than thirty years. Its replacement or repair is a very expensive and time-consuming process, which is due to the size of the equipment and a significant mass.

The rocking machine is a machine, the design of which has been improving and improving throughout the history of the oil production industry. The specific power and energy intensity of these machines depend on how strong the materials are.

Perfection of machine-rocking machines is due to new developments of standard sizes with similar or similar parameters (instead of those already available). I can give some examples. So, it includes the following: a rocking-type rocking machine, chain-type machines, with a hydraulic line and others. But if by the parameters of technology these devices can exceed the traditional rocking machines, then they could not surpass them by reliability. Therefore, in the oil industry for another ten to fifteen years, this kind of drives will be a monopoly.

Competitors of machine-rocking machines

The most important competitors in the field of the use of downhole sucker rod pumps with a drive to date are diaphragm, rod, electromagnet and hydro-piston units. The last two types of plants are much more expensive, and the first two are the main competitors for the operation of the scarcity and rectilinear wells. Pump rod screw installations are distinguished by a lower price of the ground part. They are sufficiently reliable and do not require the construction of a foundation. Their implementation is more organizational than technical in nature, as the experience of their exploitation in Canada suggests.

So you can safely predict that at the nearest time the demand for rocking machines will remain at the same level, there will be no big changes in the balancing drives, and further development will go in the direction of improving and creating quite unconventional designs.