Page 23 - Artificial Lift Methods
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ARTIFICIAL LIFT METHODS
Petroleum Extension-The University of Texas at Austin
programmable logic controllers (PLCs), 128−129 reciprocating pump, 4
progressing cavity pumps (PC pumps or PCPs). reciprocating rod lift. See also surface rod
See also electric submersible progressing cavity pumping units.
pumps (ESPCPs). about, 2, 13−14
about, 2, 57−60 advantages and challenges, 6
advantages and challenges, 6 efficiency losses, 41
composite flow tee, 70 hard cups versus soft cups, 23
electric drivehead, 65 operating principles, 16−19
gas engine-driven drivehead, 65 pump components, 22−25
insert pump, 64 pump displacement, 25
installation and operating considerations, pumping cycle, for conventional tubing
68−70 pump, 18
multi-lobe configuration, 62 pump longevity, 24
1:2 pump configurations, 62 pump nomenclature, 26
operating efficiency, 57, 61 pump types, 19−22
operating principles, 62−64, 71 system power, 41
operating speed, 66−67 target production rate, 40
pump displacement, 66, 69 typical applications, 6, 15−16
pump efficiency versus pump lift, 67 vertical wells, 6
rotor and stator pitches, 63 reciprocating rod pump arrangement, 14
rotor in stator, 62 reciprocating rod pumping unit, 14
schematic of, 62 recirculation system, 55
single-lobe configuration, 62 remote terminal units (RTUs), 127−128
stator configuration, 63 reservoir factors, 5, 8
subsurface pump assembly, 69 revolutions per minute (rpm), 49, 64, 66
surface drivehead, 2, 59, 62, 70−71 rod-driven pump systems. See progressing cavity
system components, 64−66 pumps (PC pumps or PCPs).
system design, 66−69 rod handling, 16, 38−39
torque anchor, 66 rod make up, 39
2:3 pump configurations, 62 rod size, 35
typical applications, 6, 61−62 rod string
viscous sandy fluid, 11 about, 33
volumetric efficiency, 64, 66−67 running tools, 81−82
pump barrels, 16, 18−19, 22, 24
pumping rig, early version, 15 sand, 6, 11, 23−24, 42, 57, 61, 69, 75, 85, 90, 111
pump-off conditions, 11, 127 sand-tolerant pumps, 16
pump stages sandy fluids, 11, 23, 57, 69
mixed flow, 48 SCADA. See Supervisory Control and Data
radial flow, 48 Acquisition (SCADA).
scale
rate controller, 81−82 and lift systems, 11
reciprocating motion, 27, 42, 118, 122 chemicals to control, 11, 104
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