Travelling Barrel Downhole Pumps For Sandy Wells
Travelling barrel pump description:
Downhole rod pump should be installed inside the tubing with the sucker rod. It is not necessary to pull the tubing out of the well when checking the pump, which can make the operation easier and quicker.
According to seating mode, the downhole rod pump can be divided into two types: cup hold-down pump and mechanical hold-down pump. According to the anchored position, the downhole rod pump can be divided into top anchor pump and bottom anchor pump (including stationary barrel type and traveling barrel type).
To achieve maximum performance,API subsurface pumps are machined with extra small clearance between the plunger and the inside wall of the barrel.
API RW models technical parameters table:
| RW Models | Pump OD (in) | Barrel length (ft) | Plunger length (ft) | Stroke length (ft) | Extension length (ft) | Tubing size EUE(in) |
| 30-250RWAM | Ø63.5 | 2.1-10 | 0.3-8.0 | 1.2-9.0 | / | 3-1/2” |
| 30-250RWBM |
| 30-250RWAC | Ø63.5 | 3-1/2" |
| 30-250RWBC |
Pump components:
Pump barrel: plain carbon steel plating (A1), ordinary carbon steel carbonitriding (B1), ordinary carbon steel carburizing (B2), low alloy steel nitride (B5).
Plunger: 1045 steel spraying (B1), 1045 steel spraying (B2), 1045 steel chrome plating (A1), 1045 steel double chrome plating (A2).
Valve ball and seat: stainless steel (A1), cobalt chromium (B2), tungsten carbide (C1), nickel and carbon compounds (C2), titanium carbide (C3).
Other accessories: plain carbon steel, low alloy steel, stainless steel, brass and other materials.
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Travelling Carbon Steel Barrel Downhole Pumps For Sandy Wells Images
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