Page 535 - Practical Well Planning and Drilling Manual

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Index

directional control, downhole tools affecting, dope, 472–473
157–179 downhole motor, kicking off with, 175
directional design, 107–119 downhole positive displacement mud motors, down-
casing wear and, 113–114 hole tools, 162–163
combined buildup and, 110–114 downhole tools
dogleg severity limits and, 110–114 downhole positive displacement mud motors,
of horizontal wells, 116–117 162–163
multilateral wellbores and, 118 drill collars, 160–161
slant rig drilling and, 118–119 affecting directional control, 157–179
targets and, 119 drill bits, 158
turn rate and, 110–114 roller reamers, 158–160
wellpath planning and, 108–110, 119 stabilizers, 158–159
directional drilling, 421–428 sideforce generating tools, 162
directional jetting and, 424–425 drawworks, 473
gyro multishot surveys, 428 drill bit(s)
keyseating prevention, 423–424 alternate choices, 407–409
magnetic single shot survey tool, 426–427 bottom hole assemblies and, 200
rotary bottom hole assemblies, 421–423 breaker, 463
single shot surveys, 425–426 codes, for IADC 8 point grading scheme, 416
Totco single shot survey tool, 428 defining recommended, 194–199
directional planning, 157–179 downhole tools, 158
dropping hole angle, 178–179 drilling parameters, 409–412
gyro multishot surveys, 165–166 dull, IADC 8 point grading scheme, 417,
inclination-only surface readout sub and, 164 418–419
logging while drilling, 167–168 features/selection, 195, 196
magnetic single shot surveys, 165 mill tooth bits, 192–193
magnetic surveys, 165–166 monitoring bit progress, 413–414
measurement while drilling, 167–168 mud motors, 413
measurement/surveying for, 163–173 parameter optimization, drilling parameters,
potential sources of survey errors, 171–173 412
survey intervals for, 163 polycrystalline diamond compact, 132, 189,
tangent section drilling, 177–178 193–194, 195
Totco surveys and, 164–165 post drilling bit analysis, 415–416
universal bottom hole orientating sub and, pulling the bit and, 414
163–164 reason pulled, IADC 8 point grading scheme,
vertical wells and, 164–165 417, 418
wireline deployed surface readout gyro, rock, 192–193
166–167 runs, writing field information notes for, 186
directional surveys, from wireline logging tools, 169 selection
dispersant, 472 drilling parameters and, 201
dispersed phase, 472 log data in, 190–192
dispersed water-based muds, 206–210 references for, 201
dispersion, 472 structured approach to, 181–183
of clays, 204, 205–206 steerable systems, 413
displaced fluids weights, buoyancy calculation with, tungsten carbide insert bits, 193
66 turbines, 413
distillation, 472 types, 192–194
divalent, 472 whirl minimizing of, 410–411
divalent brines, scale from, 30 drill collars, downhole tools, 160–161
divalent cations, 205 drill stem, 473
diverter drilling drill stem test (DST), 18, 473
shallow gas, 147–148 drilling
well control, 147–148 aerated fluid, 248
diverter system checklist, BOP equipment, 325–326 air, 246
dogleg, 472 below kick tolerance levels, 319–320
dogleg severity formula, 111, 472 with BOP stack, 151–153
dogleg severity limits, directional design and, clay formations, 204
110–114 criteria
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