Weatherford 2011 sucker rod pump catalog
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© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
API RWB Pump
API RHB Pump
Pumps with
Extensions have
greater chance
for gas locking
then Pumps with
out Extensions
WHY?
More space
Decreases
compression ratios
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Gas Compression Ratios
Spacing vs. Fluid Over Pump
2438 meters - 2" pump - 100" Net Plunger Travel
0
1000
2000
3000
4000
5000
6000
7000
8000
.5" 2.5" 4.5" 6.5" 8.5" 10.5" 12.5" 14.5" 16.5" 18.5"
Spacing Off Bottom
Maximum Pressure in
Compression Chamber
0
50
100
150
200
250
300
350
400
Meters of Fluid above
Pump
Pressure in Barrel Pressure on Traveling Valve
Fluid Required Over Pump
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
0
10
20
30
40
50
60
70
54 64 74 86 100 120 144 168 192
Stroke Length
Compression Ratio
1-1/4" Plunger )Rod) 1-1/2" Plunger(Rod) 1-3/4" Plunger (Rod)
2" Plunger (Rod) 2-1/4" Plunger(Tubing)
API Subsurface Pump
Compression Ratios
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Combating Gas Locking
z High Compression Valves
z Gas Breakers
z Gas Anchors
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Combating
Gas Locking
z Gas Breakers
z Two Stager
z Gas Compression Valves
z Gas Compression Plugs
z Sliding Top Valve
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
COMPRESSION RATIOS
ABCD
Well Depth (mts.) 2,286.0 2,286.0 2,286.0 2,286.0
Plunger Travel 90" 90" 90" 90"
Pump Bore 1.25 1.25 1.25 1.25
Oil Cut 80% 80% 80% 80%
Seat Plug Type Standard Standard Hex Plug Hex Plug
Intake Pressure 80 PSI 80 PSI 80 PSI 80 PSI
S.V. Cage Type Standard Standard Inverted Inverted
Unswept Barrel Area 1.287 5.582 5.037 0.74
Unswept S.V. Area 2.244 2.244 1.264 1.264
Total Unswept Area 3.531 7.826 6.301 2.004
Distance Spaced Off Bottom 1/2" 4" 4" 1/2"
Load on Traveling Valve 3200 3200 3200 3200
Pressure in Barrel 2582 1209 1483 4488
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Conventional
(Poor Boy)
Gas Anchor
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Gas Separation
(Concept 1 of 4 )
Casing
Tubing
Rods
Pump
Spillover Tube
Crossover
Packer
Pump Intake
Perforations
Producing Zone
Packer-Type Anchor
Casing
Tubing
Rods
Producing Zone
Pump
Seating Nipple
Tubing Intake
Perforations
Natural-Gas Anchor
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
Poor-Boy Gas Anchor
Tubing
Rods
Pump
Tubing Intake
Perforations
Producing Zone
Casing
Seating Nipple
Suction Tube
Mud Anchor
Modified Poor-Boy
Gas Anchor
Tubing
Rods
Pump
Tubing Intake
Perforations
Producing Zone
Casing
Seating Nipple
Suction Tube
Mud Anchor
Gas Separation
(Concept 2 of 4 )
© Weatherford. All rights reserved.
ARTIFICIAL LIFT SYSTEMS
®
1.9-in. Casing
Rods
2 7/8-in. O.D. Casing
Pump
Seating Nipple
1.316-in. OD Tubing
Producing Zone
Tubing
Perforations
Modified Natural-Gas Anchor
(For Small-Diameter Casing)
Rods
2 7/8-in. OD Casing
Pump
Seating Nipple
30 in. x 1.0-in.
O.D. Tubing
Producing Zone
Packoff
Modified Packer-Type Gas Anchor
(For Small-Diameter Casing)
Gas Separation
(Concept 3 of 4 )