Page 289 - Geology of Carbonate Reservoirs

270 INDEX

Buildups, carbonate Central Basin Platform, Texas, 152, 211
chemogenic, 82 Chalk
mounds, microbialite (Cambrian) Texas, 181 Austin (Cretaceous) Texas, 132–133
“mud mounds”, 148, 181 fracture patterns in, 185
mudstone-cementstone, Early Carboniferous, constituents of, 16, 131
212, 247 Ekofi sk field, North Sea, reservoirs in, 185

Bunter Sandstone, Triassic (Germany), 87 Europe, Middle East, and North America,
Buttress and chute structures, 29, 125 examples in, 124, 131
North Sea

Calcisiltite, 16 classification of, 132–133
Caliche, 115 fractured reservoirs in, 240
Cambro-Ordovician, North America, 117. porosity and burial depth, 132
See also Transcontinental Arch typical age and depositional setting, 124
Capillarity, 56 turbidites, 213
Capillary Chalkifi cation (degradational diagenesis), 150
attraction, 63–64 Chert and chalcedony, 131, 238, 243. See also
drainage curve, 71 Facies, basinal
imbibition curve, 71 “Chicken wire” fabric, see Environments, tidal
injection curve, 71 flat and lagoon

Capillary pressure, 6–8, 17, 65, 67 China, mainland, 109
curves, 7, 64 Clay minerals, K, Th, and U in, 202
defi ned, 64–66 Coccolithophorids (coccoliths), 16, 131. See also
mercury, measurements of (MICP), 7, 107, Chalk
145, 205, 209 Condensed interval, 100
Carbonate(s) Conformities
defi ned, 2 correlative, 85
eolianites, 111 stratigraphic, 101
factory, 81, 102, 129 Conglomerates, fl at pebble, see Environments,

lacustrine, nonmarine, 109 tidal flat and lagoon

marine. See also Carbonate, factory Conley field (Mississippian) Texas, 124
minerals, natural occurrences of, 4 Chappel Formation in, 219–221, 223
particles, see Constituents, carbonate depositional reservoir, as example of, 214,
precipitation, inorganic, 81 219–224
production Ellenburger Formation in, 219
biogenic and chemogenic, 81 Palo Pinto Formation in, 219
principal zone of, 97, 102. See also Constituents, carbonate. See also Minerals,
Carbonate, factory metastable
rocks, classification of, 20–21, 25–30 biological, 9, 16

Carbonate compensation depth (CCD), 98, chemical, 9
129–130 depositional sedimentary, 108
aragonite and calcite, 129 grain types, 15
factors determining depth of, 129 mineralogical, 15
Carlsbad Caverns, New Mexico, 153 nonskeletal, 2
Capping facies, cycle, 28 skeletal, 20
Caves Contact inhibition, 152
coastal zone, 162 Converting MICP data to oil-water equivalents,
continental, 162 69–70
Cathode luminescence (CL), see Luminescence, Coordination number, 66, 72–73
cathode Coriolis force, 127
CCD, see Carbonate compensation depth Correlations
Cements geochronological, 84
botryoidal, 167 layer-cake, 99–100
ferroan calcite, 169 stratigraphic methods for, 86–87
isopachous, 167–168 Cotton Valley Formation (Jurassic) Texas
meniscus, 168 “chalky” porosity in, 151
poikilotopic, 169 neomorphic microporosity in, 159–160, 228
pore-lining, 168 salt domes and sedimentation of, 136