Weatherford 2011 sucker rod pump catalog
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ARTIFICIAL LIFT SYSTEMS
®
Plunger
Material
Mild Moderate Severe Mild Moderate Severe Mild Moderate Severe
Spray Metal
58 RC min.
XX X
Chrome Plated
67 - 71 RC
XX X
Spray Metal
Monel Pin 58
RC min
X X X
Pressure
Actuated with
Steel Pins
58 RC min
XX X
Pressure
Actuated with
Monel Pins 58
RC min
XXX
CO2Abrasion H2S
Plunger Material
Selection
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ARTIFICIAL LIFT SYSTEMS
®
Pressure Actuated
Plunger
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Rod Pump
Fluid Slippage
Depending upon well fluids and
conditions, 2-3% slippage of
produced fluid is expected to keep
barrel/plunger contact sufficiently
lubricated.
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
High-Pressure Fluid Effects
on Rod Pump Barrels
Fig. #1 Fig. #2 Fig. #3
A. Traveling Valve
B. Pump Barrel
C. Pump Suction
D. Pressure created by fluid
column in tubing
E. Plunger
F. Tubing
G. Bottom Holddown
H. Sucker or Pony Rod
I. Top Holddown
J. Fluid level in the well
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Shows the effect of
pressure caused by
the fluid column hydrostatic
pressure against the part
of the barrel not supported
internally by the plunger.
As the plunger moves, it
contacts the convex wall
of the barrel causing it to
wear into a ‘cigar’ shape.
Fig. 3 - Bottom Holddown Rod Pump
High-Pressure Fluid Effects
on Rod Pump Barrels
Figures 1 & 3
Fig. 1 -Traveling Barrel Rod Pump
Fig. 2Fig. 1 Fig. 3
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
High-Pressure Fluid Effects
on Rod Pump Barrels
Fig. 2Fig. 1 Fig. 3
Figure 2
Shows the effect of the
pressure of the
fluid column hydrostatic
pressure on a stationary
barrel pump (top or bottom
holddown)
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Standing Valves
Closed-Type
Cage
Open Cage,
Traveling Barrel
Open Cage,
Tubing
Open Cage, Tubing,
Drain-Type
Closed Cage,
Tubing, Permanent
Closed Type
Cage,
Insert Style
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Standing Valves
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Double Valve
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Four Ball Guides