Page 296 - Geology of Carbonate Reservoirs

INDEX 277

Transgressive systems tract (TST), 212, 247 climate, factors determining, 111
Traps, 5 period, 111
TST, see Transgressive systems tract shoaling transformation, 111
Turbidites solitary, 111
channelized, proximal, 128 Wells, horizontal in fractured reservoirs,
distal, 131 244
“Turtle” structure, 124 Wettability, 56, 62
Williston Basin
Unconformities, 84, 90, 101, 155 fractured Mississippian “mud mounds” in the,
181, 185, 240, 244

Vents and seeps, seafl oor, 82 Paleozoic tidal flat deposits in the, 119
Winnowing, 18
Walther’s rule, 93 Withdrawal. See also Reservoir, recovery
Washouts, wellbore, 161, 244 effi ciency
Water curve, capillary pressure, 71
bearing zone in reservoir, 57 effi ciency, mercury, 71
conate, 57
formation, resistivity of, 59 Yucatán
interstitial, chemical composition of, and Campeche Bank, 89
cement mineralogy, 167 fractured reservoirs in, 240
subsurface (burial diagenetic), composition Isla Cancun, 89
of, 154 Isla Mujeres, 89
Waulsortian (Mississippian) mounds, 243, 247. oolite grainstones on NE coast of, 89, 115
See also Buildups, carbonate
Wave(s) Zone, reservoir
Airy, 111 productive, 57
base, fair-weather, 78 transition, 57
breaking, 111 water-bearing, 57