1. The bottom of the plunger of the thermal recovery sucker rod pump is inlaid with a diamond composite (PDC) scraping ring, and the inner wall of the pump barrel of the thermal recovery sucker rod pump is laser engraved with micron-level flow-guiding lines (Ra 0.8μm) to form a vortex effect to prevent sand deposition. 2. The plunger of the thermal recovery sucker rod pump is made of Inconel 718 alloy (temperature resistance 650℃),the seal of the thermal recovery sucker rod pump is a graphite-metal composite material. 3. The thermal recovery sucker rod pump adopts a floating valve seat design, which automatically compensates for the thermal deformation of ±3mm.
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The annulus sucker rod pump, specially designed for heavy oil wells with high viscosity and sand content, can greatly stabilize pumping and minimize blockages during thermal recovery. This kind of pump is most frequently used in 7” and 5 1/2” cased wells. It is a good choice for distributors and contractors of oilfield projects who want reliable and easy-to-maintain pumping solutions.
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