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Based on industry standards (API SPEC 11AX and GB18607), this article systematically explains rod pump barrel materials, hardening methods, plunger clearance, inspection standards, and key points for field use, providing a reference for oilfield procurement personnel.

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.​

In oil extraction, what we often call a piston pump is actually a rod pump that everyone is familiar with-it is the core equipment of underground oil production, relying on the “reciprocating movement of the piston” to extract underground crude oil. The principle is simple but the function is critical. The API 11AX Tubing Pump, which we focus on selling, as a benchmark product in petroleum rod pumps, has taken the advantages of this operating principle to the extreme, and cooperated with the tube pump to form a complete oil recovery system.

In the oil and natural gas industry, pumps are the core equipment to ensure the efficient operation of oil and gas extraction and transportation links. The selection of their types needs to accurately match the underground working conditions.Common pump types include rod pumps, submersible oil pumps, screw pumps, etc. Among them, rod pumps account for more than 60% of applications in land oil and gas fields due to their stable structure and low maintenance costs. Tieling Dongsheng Petroleum Machinery Co., Ltd. is an industry leader focusing on rod pump research and development and manufacturing.​

In mining operations, pumps, as the core equipment for fluid delivery, directly affect mining efficiency and safety. From slurry transportation to underground drainage, different scenarios have different performance requirements for pumps. Common types include centrifugal pumps, submersible pumps, screw pumps, etc., and insert pumps occupy a special position in the mining field due to their sturdy structure, easy maintenance, and adaptability to multiple media. Tieling Dongsheng Petroleum Machinery Co., Ltd. has been deeply engaged in insert pump research and development and manufacturing for many years. Its products have become the preferred equipment for the mining industry with targeted design and reliable performance.

In oilfield oil production equipment, the stroke length of the rod pump is the key indicator that determines the efficiency of oil production, but it is often misunderstood by newcomers in the industry.

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.

In oil extraction equipment, tubing pump and rod pump are two mainstream types of manual lifting equipment. Although they belong to the same category of oil pumps, there are significant differences in structural design, applicable scenarios and performance. As an enterprise focusing on the research and development of petroleum extraction equipment, Tieling Dongsheng has deeply cultivated the API standard system. The APl rod pump we produce has become the preferred equipment for many oil fields due to its compliance and adaptability.

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.