Page 20 - Artificial Lift Methods

Index

Petroleum Extension-The University of Texas at Austin
fatigue resistance, 34−35, 39 configuration of, 80−81, 84
fiber-optic cable, 127 design, 80
fixed-insert conventional configurations, 114 development of, 74
flapper valves, 13 multiple, 78−79
flow friction, excessive gas injection, 88 paraffin, 11
flow-line pressure, 6−7, 10 gas-liquid ratio (GLR), 7, 10, 75, 85, 94, 100, 112
fluid factors, 5, 10−11 gas lock, 10, 16, 24, 46, 48, 52, 61
fluid fallback, 63−64, 86, 91, 93, 96 gas separation, 40, 46, 50
foam lift. See velocity strings and foam lift. gas separator process, 25
formation gas, 3, 52, 55, 75, 77, 88, 90, 93, 113−115 gas separators, 25, 50
free gas, 6−8 gas wells
free-pump casing return, 112 dewatering, 1, 85, 94, 102, 114
free-pump parallel return systems, 113 life extension, 102
liquid removal, 3, 93, 99, 106
front-mounted geometry crank counterbalance
units, 29, 42 heavy oil, 6, 15, 46, 57, 61, 64, 71, 111
heavy-wall barrel, 24
gas anchors, 25, 40 high-viscosity fluids, 11
gas-cap reservoirs, 1 high-volume wells, 43−44
gas drive wells, 8 hold-down, 19, 21−22
gas engine-driven drivehead for a PC pump, 65 horizontal wells
gas flow velocities, 3, 101−103, 105 electric submersible pumps (ESPs), 44−45
gas injection, 3, 74, 76, 78, 83, 85−90, 105, 117 velocity strings and foam lift, 102
gas interference, 10, 24 hydraulic jet pumps
gas lift. See also continuous gas lift and intermittent about, 4
gas lift. energy consumption, 117
about, 2−3, 73−74 operation, 110, 116−117
advantages and challenges, 6 origin of, 109
configurations, 78, 84, 90 schematic, 116
deviated wells, 90 typical applications, 7, 111
efficiency, 75, 77, 83−84, 90 with large-volume wells, 9
origin of, 74 hydraulic lift. See also hydraulic jet pumps and
perforation for, 83 hydraulic piston pumps.
single-point, 80 about, 4, 109−111
system deliverability curve, 89 advantages and challenges, 7
vertical wells, 75 cost and power requirements, 112
gas-lift mandrel application, 115 parts of, 109
gas-lift mandrels, 81, 86, 115 pressure capacity, 119
gas-lift running tools, 81−82 surface equipment, 120−122
gas-lift valves surface infrastructure, 111
bellows, 74, 80 system configurations, 112−115
bottom, 77−79, 90 typical applications, 7, 111−112

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