Conforming to API Spec 11AX, this fixed-barrel bottom-set rod pump is primarily designed for crude oil production in deep wells, low-fluid-level wells, and sandy or gassy wells. Featuring a fixed barrel and bottom anchor assembly, the entire pump can be retrieved with the sucker rods without the need to trip out the tubing string, which significantly reduces maintenance costs. It is ideally suited for sandy wells, low-production wells, and applications requiring intermittent pumping.
Featuring a thick-walled pump barrel and a bottom-set structure, this pump is designed for greater well depths. The extra wall thickness provides superior downhole pressure-bearing capacity. Additionally, the pressure balance between the pump barrel's outer diameter and the casing's inner diameter eliminates the barrel "breathing" effect under formation pressure, allowing for deeper installation.
The bottom-mounted anchoring mechanism ensures uniform stress distribution and effectively offsets the axial impact forces generated by reciprocating motion. It is ideal for deep wells and heavy-load lifting conditions.
The pump barrel's outer diameter is specifically designed for deep well service. It offers superior fatigue resistance compared to conventional thin-walled pumps and can withstand long-term, high-frequency reciprocating loads.
The precise fit clearance between the plunger and pump barrel ensures reliable sealing performance, effectively preventing both internal and external leakage. This makes it perfectly suitable for fluid lifting in low-fluid-level oil wells.
Actively reduces particle accumulation around anchoring points.
Directs solid particles away from the pump barrel, maintaining downhole pump integrity and extending service life.
Prevents particle sedimentation and buildup on the pump, while significantly mitigating the adverse effects of corrosive fluids.
The bottom anchoring structure ensures uniform stress distribution and effectively absorbs impact forces from reciprocating motion. Ideal for deep wells and those with low fluid levels, it delivers maximum stability even under extreme lifting loads.
The thick-walled, pressure-rated pump barrel offers superior fatigue resistance. It withstands long-term, high-cycle loads without leakage or deformation, ensuring stable and uninterrupted production in deep wells.
Featuring a specialized limit structure, it is fully compatible with deviated and directional wells, maintaining peak lifting efficiency even in the most complex downhole environments.
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