The RHA rod-type sucker rod pump is designed for medium-depth wells and features high sand fallback capability during well shutdown. With its extra barrel wall thickness, it is engineered to better withstand downhole pressure. The top fixed design prevents sand buildup around the pump barrel caused by fluid leakage above the valve seat tubing connections, thus avoiding pump seizure in sandy applications. Valve seat options include mechanical and cup-style seats. The mechanical seat is ideal for high-temperature environments and simplifies well maintenance, requiring no routine service unless severe damage occurs. However, the cup seat must be replaced every time the pump is pulled. The larger inner diameter of the telescopic jacket provides space for scale and sand to settle, effectively preventing the plunger from sticking prematurely inside the pump barrel.
Compliant with API Spec 11AX, this pump features a top anchoring mechanism, offering excellent pressure resistance and anti-deformation capabilities. It ensures stable downhole positioning without axial movement. The design eliminates the need for tubing pulling during workovers, greatly simplifying maintenance while effectively preventing sand lock and abrasion. It is ideally suited for medium-deep wells and high-sand-content conditions.
The pump utilizes a thick-walled barrel with uniform thickness. The inner wall undergoes precision grinding and hardening, delivering high pressure-bearing capacity and superior resistance to deformation and erosion—perfect for high-pressure environments in medium-deep wells.
The anchoring claws engage firmly for precise downhole positioning. The pump remains secure and stationary during operation, effectively preventing any axial shifting.
Pump replacement is achieved simply by lifting the sucker rods, eliminating the need to pull or disassemble downhole tubing. This significantly streamlines the maintenance process.
The thick-walled pump barrel boasts high pressure-bearing capacity, along with excellent resistance to deformation and erosion. It is perfectly adapted to the high-pressure conditions of medium-deep wells, maintains structural integrity over long-term operation, and significantly enhances equipment durability.
Featuring a firmly engaged top anchoring mechanism, it achieves precise downhole positioning without any axial movement. It is highly adaptable to various vertical well conditions, effectively eliminating failures caused by pump shifting.
Pump inspection requires no tubing pulling. The pump can be retrieved and installed directly by lifting the sucker rods, which greatly shortens workover time and reduces both downhole operation costs and safety risks.
Designed for complex conditions such as medium-deep and high-sand-content wells, the thick-walled pump barrel offers excellent pressure and deformation resistance. Combined with a firm top anchor, it adapts to harsh production environments and ensures long-term operational stability.
Pump inspection requires no tubing pulling; the unit can be retrieved and installed simply by lifting the sucker rods. This significantly shortens workover time while reducing both downhole operation costs and high-altitude safety risks.
Effectively minimizes sand lock and abrasion failures, extends maintenance intervals, and meets the long-term production demands of complex oilfield conditions.
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