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Sucker rod pumping is the most common artificial lift method both domestically and internationally: Venezuela: 70% of oil wells are pumped using rod pumps. The United States: 85% of oil wells are pumped using rod pumps. Russia: Over 55% of oil wells are pumped using rod pumps. China: Over 80% of oil wells use sucker rod pumps, accounting for 75% of total oil production. Rod pumps play a crucial role in my country's oil extraction.

The importance of the sucker rod pump: Although it accounts for a small proportion of the total cost and weight of a complete rod-operated pumping unit, it is a key component determining the technical and economic indicators of the unit. The operating condition of the sucker rod pump significantly affects the service life of the surface pumping unit and sucker rod. Factors such as plunger jamming, delayed opening and closing of pump valves, and excessive pump clearance volume can all cause overload and malfunction of the pumping unit and sucker rod, leading to well collapse. A schematic diagram of the structure and operation of a sucker rod pump is shown in the figure.

Artificial lifting is a process where, when the natural energy of the formation is insufficient to sustain natural flow production, or although natural flow is possible but the production rate is insufficient, mechanical equipment is installed in the wellbore to work on the fluid, allowing it to flow to the surface.

Recently, while studying the fundamentals of oil exploration, we were once again struck by the complexity of the oil production chain: from how oil and gas are formed, stored, and migrated, to their final extraction through the wellhead, each step requires extensive geological and engineering expertise. In this entire process, once reservoir conditions are confirmed and production begins, one of the most critical pieces of equipment downhole is the Sucker Rod Pump.

Petroleum continues to occupy a crucial position in the global energy structure. Oil and natural gas are not only major energy sources but also the most important basic raw materials for the chemical industry, widely used in the production of thousands of materials such as plastics, rubber, coatings, and synthetic fibers. Therefore, the stable and efficient extraction of oil from the ground is a key focus for oilfields worldwide.

The applicable conditions for API sucker rod pumps require a comprehensive consideration of multiple parameters, including well depth, production rate, well structure, and fluid characteristics. The core suitable scenarios can be summarized as conventional production environments of "medium-deep, low-to-medium production, vertical or slightly deviated wells." According to API SPEC 11AX specifications and industry practice, the specific applicable boundaries are as follows:

In global oil extraction, the rod pump is one of the most crucial artificial lift systems, widely deployed in onshore oil fields, heavy oil wells, deep wells, and highly corrosive environments. To improve well production, reduce well shutdowns, and extend pump lifespan, selecting a high-quality, API 11AX-compliant sucker rod pump is essential. Dongsheng, a leading domestic manufacturer of sucker rod pumps, leverages its factory-direct sales, stable quality, and technical expertise in partnership with SLB to continuously provide global customers with highly reliable API pump, downhole pump, and oil well pump solutions.

In oil exploration, the adaptability of sucker rod centralizer directly determines whether it can be stable and anti-wear and anti-stuck in different well types and complex well conditions. The columnar sucker rod centralizer developed by Dongsheng Petroleum, relying on structural and material innovation, breaks through the limitations of traditional equipment “single adaptation” and realizes flexible matching in multiple scenarios. We analyze the adaptation advantages of this sucker rod centralizer from the three dimensions of well type, well condition, and installation, and show its ability to support different mining scenarios.

In the operation of the sucker rod pump, the centralizer is a key component to avoid partial wear of the rod and ensure the stability of the equipment. Spiral sucker rod centralizer and standard sucker rod centralizer are common types in oil fields. The two have significant differences in structure, application scenarios and performance. The following is a detailed analysis of the differences based on our Dongsheng Petroleum experience and standards.

In oil extraction lifting systems, the performance of spiral sucker rod centralizer is determined by the structural design. A high-quality spiral sucker rod centralizer needs to take into account the convenience of installation, adaptability to working conditions and durability through a scientific combination of components. Dongsheng Petroleum has extensive experience in the structural adjustment of spiral sucker rod centralizer. We will take you to understand the mystery of its structure from the three aspects of core components, material logic, and adaptation advantages.​