Don-Nan RXB API Insert Pumps | Schlumberger

Don-Nan RXB API Insert Pumps

RXBC and RXBM standard sucker rod pumps

Pump efficiently at greater depths

The RXB API insert pump is a heavy-walled, stationary barrel, bottom hold-down pump recognized by API as a standard design. This pump is most often used in moderate to deep wells where there is little chance of sand accumulation. If sand or gas is an issue, the pump can be paired with optional accessories to address those challenges. The operating capacity of this pump falls between the RHB and the RWB API insert pumps: Like the RWB API insert pump, the barrel is threaded on the inside, reducing the number of connections needed and allowing room for a larger bore. The wall thickness, however, is similar to the RHB API insert pump, enabling operation at greater depths.

Seating options on this pump include mechanical or cup types suitable for high temperatures, and mechanical types for simplified well maintenance. A mechanical hold-down does not require repair unless major damage has occurred, whereas cups should be replaced every time the pump is unset. Both hold-down types follow the same procedure of setting and unsetting by placing the weight of the sucker rods down on the pump or lifting up.

RXB API Insert Pump
Stationary assembly: A=Guide, valve rod; B=Connector, upper barrel; C=Barrel, heavy wall; D=Cage, closed barrel; E=Valve, ball and seat | Traveling Assembly: F=Bushing, valve rod; G=Rod, valve; H=Coupling, plunger adapter; I=Plunger; J=Cage, closed plunger; K=Valve, ball and seat; L=Plug, seat | Seating Assembly: M=API, 3-cup.
Don-Nan RXB API Insert Pumps
Applications
Sandy and high-scale wells and shallow pumping depths
Benefits
Resistance to becoming stuck, and prevention of particulates falling inside pump on well shutdown
Features
Open-top cage, traveling barrel assembly, and universally accepted design

Address common problems such as rodstring wear and damage caused by gas interference, erosion, or insufficient fluid levels. 

Sucker Rod Pump

Extend the life of your rod lift system with greater flexibility

These products provide greater flexibility during operations and can extend the life of the rod lift system.

Sand specialty products

  • Top seal: Prevent a stuck pump scenario caused by solids accumulation around the hold-down.
  • Sand shield: Proactively reduce particulate collection near the hold-down.
  • Sand diverter: Direct solids away from the pump barrel, maintain downhole pump integrity, and extend run life.
  • Bottom discharge valve: Keep particulate matter from settling and sticking the pump and greatly reduce the adverse effects of corrosive fluid.
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