API Spec. Oil and Well Drilling Subsurface Sucker Rod Pump/Tubing Pump/Oil Well Pump for Sucker rod

SUCKER ROD PUMP

- Tubing Pump

- Suck Rod Pump

1. The subsurface sucker rod pump is an important equipment of rod extracting system that extracts the fluid in the oilwell powered by pumping units and sucker rod, which is also referred to as insert pump as its plunger is attached to, moves up and down with the sucker rod string. It is suitable for reducing the time of workover for deep well as it is not neccessary to pull all the tubing out of the well hole when checking the pump, which makes the operation quicker and the service life of tubing longer.The rod pump is in a state of free hanging, so it is suitable for deviated wells. According to seating mode ,the rod pump can be divided into two types: cup hold-down and mechanical hold-down. According to anchored position, the pump can be divided into top hold-down pumps and bottom hold-down pumps which include stationary barrel and traveling barrel types.

2. Tubing pump barrel is put in the well to the designed depth with tubing. And then put the plunger into the barrel with sucker rod. Given the tubing size, the bore of the tubing pump is larger than that of the rod pump, so the pump rate is higher. 

Technical Performances:

--The pump barrel is made of by using the high quality special-puurpose blank. The internal surface adopts the superficial  strengthening processing of chrome -planting or the nickel pthosphorus compound plating to achieve the good intensity, the rigidity, wearressistance and anticorrosion property..

--The plunger surface uses the nickel base alloy powder to spurt welding to achieve good wear-resistance and anticorrosion property.

--The valve ball and the valve seat being made of high-carbon chromium stainless steel or ceramics or tungsten carbide material to achieve longer life span.

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