Si vous recherchez un fournisseur fiable de pompes à tiges API, de pompes de fond de puits et de pompes de puits, veuillez contacter Dongsheng :
jason@tldspm.com
Petroleum is a complex mixture formed over millions of years from ancient organic matter under high temperature, high pressure, and oxygen-free conditions. It is mainly composed of hydrocarbons, including different types such as alkanes, cycloalkanes, and aromatics.
These different components result in crude oil exhibiting different properties in different oil fields, for example: Large viscosity differences: Light oil flows easily, while heavy oil has poor flowability and requires greater pumping force; Inconsistent gas, sand, and water content: Some oil wells have high sand content, which easily causes wear on ordinary pumps; Large burial depth: Most oil reservoirs are located hundreds to thousands of meters deep, with complex temperature and pressure environments; Decreasing reservoir pressure year by year: Insufficient natural energy, and fewer and fewer flowing wells.
These factors determine that oil wells must rely on artificial lifting equipment to stabilize production during the extraction process, and the sugar rod pump is one of the most common and reliable methods.
II. Why is the sugar rod pump the most widely used lifting method in global oil fields?
The reason why the sugar sucker rod pump accounts for more than 60% of global oil fields is because it has comprehensive advantages that are difficult for other lifting methods to replace.
(1) Adaptable to various well conditions:
Capable of handling everything from shallow wells to ultra-deep wells.
The depth of global oil wells varies greatly.
Shallow wells: hundreds of meters. Conventional wells: 800–2000 meters.
Deep wells: Over 3000 meters.
Ultra-deep wells: Over 4000 meters.
A sucker rod pump is a lifting method with flexible mechanical stroke adjustment and freely configurable pump mounting depth. Regardless of well depth, optimal pumping effect can be achieved through different specifications of pump barrels, plunger matching, and sucker rod grades.
In contrast:
Electric submersible pumps (ESPs) are not suitable for low-yield, old wells.
Screw pumps fail quickly in wells with high gas content or high temperatures.
Gas lift requires a stable gas source and is not suitable for remote blocks.
Therefore, most oil wells with reduced pressure, insufficient fluidity, and low production will eventually revert to a sucker rod pump system.
(2) Higher tolerance for complex media：
Crude oil composition is extremely complex. Many oil wells contain sand, gas, water, wax, asphaltene, and other substances, all of which can have varying degrees of impact on oil production equipment. The structure of a sucker rod pump (pump barrel + plunger) can be optimized in terms of materials and structure according to the characteristics of the medium. For example: Sand-bearing wells: Hard alloy plungers, tungsten carbide coating, and a special "sand valve structure" are used.
High gas-content oil wells: A gas-lock prevention pump structure (Gas Anchor/Gas Separator) is used to effectively break gas lock.
High water-content oil wells: Lifespan is improved through corrosion-resistant materials and optimized pump barrel sealing structure.
High wax-content oil wells: Large-clearance pumps or special wax-resistant structures can be used to ensure smooth plunger movement.
The "customizable structure" of the sucker rod pump makes it easily adaptable to the challenges of different oil wells.
(3) Low operating cost, simple maintenance, and long-term stable operation in remote oilfields.
The biggest advantage of the sugar rod pump is not its high technology, but its durability, simplicity, and stability. It has no complex electronic equipment. Surface equipment (pumping units) is easy to maintain. The downhole pump structure is intuitive and easy to replace. It does not rely on external energy or complex control systems.
Therefore, remote oilfields (such as the Middle East desert, heavy oil blocks, unconventional blocks), old well regeneration areas, and low-energy reservoir areas all prefer the sugar rod pump as the core lifting technology.
III. How do the properties of petroleum affect the design of the sugar rod pump?
The properties of crude oil determine the pump's structure, materials, sealing method, and plunger fit, which are the core characteristics of the sugar rod pump. The core basis for pump design. The following are some key aspects:
(1) Viscosity and Flowability:
The viscosity difference of crude oil from different oilfields can reach hundreds of times, which will affect: the design of the plunger-pump barrel clearance, stroke speed and stroke rate settings, pump diameter (outer diameter) selection, and whether to use a large-stroke pump or thicken the pump barrel.
For example: High-viscosity oil requires a larger pump diameter and lower stroke rate to reduce friction and heat generation.
(2) Sand Content Determines the Pump's Wear-Resistant Structure:
Sand entering the pump will cause: rapid plunger wear, shortened valve ball and seat life, and increased clearance leading to decreased pump efficiency.
Solutions include: using tungsten carbide-coated plungers, using nickel-based alloy pump barrels, selecting ceramic or carbide balls for the valve ball, adding anti-sand rings, and anti-sand filtration structures.
IV. Technical Advantages of Dongsheng Petroleum Machinery Co., Ltd.
As a screwdriver rod As a pump and special pump manufacturer, our advantages lie not only in product quality but also in R&D capabilities, industry experience, and service system.
(1) Mature product system covering all oil well conditions:
Dongsheng can provide: API standard sucker rod pumps, sand-resistant sucker rod pumps, corrosion-resistant pumps, and special pumps.
(2) Advanced processing capabilities and equipment system:
The company is equipped with: CNC lathes, professional processing workshops, cylindrical grinding machines, long plunger welding machines, etc.
(3) Strict quality control system:
We implement full-process quality control, including: mechanical engineering inspection, plunger outer diameter detection, plunger-type spray coating thickness detection, 45,000 physical and chemical tests, Rockwell hardness test, Vickers hardness test.
(4) Providing operating condition matching services for more accurate procurement:
Customers only need to provide: well depth, water cut, sand content, temperature, pumping unit parameters, single well production, and whether it contains H₂S/ CO₂, whether it is high viscosity oil.
We can recommend pump types and select matching sucker rod grades for our customers. This is a professional capability that ordinary suppliers cannot provide.
(5) Extensive global oilfield case studies support long-term stable production for our customers.
We cooperate with oilfields in many countries, including:
Middle East medium-heavy oil blocks.
Central Asia high gas-bearing oil wells.
Southeast Asia high water-bearing old wells.
South America shale oil blocks.
Africa heavy oil wells.
Years of practical experience have given us a thorough understanding of the characteristics of different oil reservoirs around the world, enabling us to provide customers with more precise solutions.
V. The complexity of oil determines the importance of the sucker rod pump
The formation environment, physical properties, and chemical characteristics of oil vary greatly, thus placing high demands on pumping equipment. With its strong adaptability, reliability, and flexible structural design, the sucker rod pump has become one of the most widely used artificial lifting devices in the world.
Dongsheng Petroleum Machinery Co., Ltd. will continue to provide global oilfields with long-life, high-performance sucker rods. Pumps and specialty pump solutions help oil wells achieve more stable and efficient production.
Contact Information.
If you are looking for a reliable supplier of API rod pumps, downhole pumps, and well pumps, please contact Dongsheng: jason@tldspm.com