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During the operation of the oil sucker rod tubing pump, “air lock” is a common and easily overlooked failure. Once it occurs, it will cause the pump body's oil absorption and exhaust efficiency to plummet, and even cause equipment idling and wear. The so-called air lock refers to the phenomenon that after underground gas (such as natural gas and dissolved gas) enters the pump chamber of the oil sucker rod tubing pump, it occupies the effective space of the pump chamber due to the strong compression of the gas and the difficulty of discharging it, hindering the normal inhalation and lifting of crude oil. Timely and scientific removal of the air lock from the pump body associated with the pump rod is the key to ensuring the stable operation of the oil sucker rod tubing pump, which can be achieved in three steps: “Judgment-treatment-prevention”.​

Dongsheng Petroleum sucker rod guide centralizer selects high-performance raw materials, which are processed and formed by advanced technology, and have excellent wear resistance and impact resistance. It can effectively alleviate the frequent workover problems caused by wear and fracture of well pipes during operation. The wear resistance of this sucker rod guide centralizer far exceeds that of traditional ordinary sucker rod guide centralizer, which greatly reduces the frequency of equipment replacement and reduces the cost of oilfield operation and maintenance.​

In the core equipment system of oil extraction, the stable operation of downhole sucker rod pump is the key to ensuring the continuous oil production of oil fields and improving the efficiency of mining. With the continuous expansion of oilfield development scenarios, from conventional shallow wells to deep wells, ultra-deep wells, from ordinary reservoirs to complex reservoirs with high sulfur content and high mineralization, the working conditions faced by downhole sucker rod pump are becoming more and more serious. As the core pressure bearing and sealing component of downhole sucker rod pump, the pump barrel is directly related to the overall performance, service life and operating stability of the equipment. It has become an important research direction in the industry to optimize the performance of downhole sucker rod pump.​

As the core equipment in the field of oil and gas extraction, sucker rod pump's development history is closely linked to the global energy development process.

In the global energy development system, sucker rod pump, as a kind of oil and gas extraction equipment with reliable structure and controllable cost, has become an important equipment for the extraction of land oil and gas fields and conventional oil and gas reservoirs due to its strong adaptability to different geological conditions. Its application footprint is all over the major energy production areas, deeply supporting the stable operation of the global oil and gas supply.

At present, the development of global oil and gas resources is gradually turning to the field of difficult to recover reserves, of which the proportion of heavy oil resources is increasing year by year. However, complex well conditions such as high temperature, high pressure, and high viscosity have become key bottlenecks restricting the efficient extraction of heavy oil. In this context, thermal recovery sucker rod pump, with its unique technical advantages, has gradually become the core equipment for solving complex well mining problems. Its precise positioning of adapted well conditions provides important support for improving the efficiency of oilfield development.

In the field of heavy oil and high-viscosity crude oil extraction, the performance of thermal recovery sucker rod pump directly determines the recovery efficiency and operating costs of oil fields. As a professional manufacturer in the field of domestic petroleum machinery, Tieling Dongsheng relies on in-depth research on thermal mining conditions to create the thermal recovery sucker rod pump.

In the complete set of oil recovery equipment, the pumping unit, the pumping rod, and the oil pump are all very important key core components. Through collaborative operation, they have built a “three pumping equipment” working system to jointly promote the complete process from underground crude oil extraction to ground transportation. The performance advantages and disadvantages of these three and the degree of tacit cooperation will not only directly affect the output of the oil well, but also have a vital impact on the overall economic benefits of the mining project.

In oil extraction operations, deep well pump oil recovery equipment is the core equipment to open up the underground crude oil delivery channel to the ground, and the beam—type oil pump-oil pump device, with its excellent reliability and strong environmental adaptability, occupies an important position in various types of oil recovery equipment and has become one of the most widely used types.

Downhole sucker rod pump generally refers to a plunger-type oil pump driven by the reciprocating movement of the sucker rod up and down. It is the key underground equipment of the rod pumping system. It is mainly composed of four parts: pump cylinder, plunger, fixed valve and swimming valve. When working, the ground pumping unit drives the plunger up and down through the pumping rod.