Page 14 - Petroleum Geology

XI11
Introduction ................................................ 179
Hydrodynamic aspects of migration ................................ 181
Secondary migration ........................................ 185
Migration in moving water ..................................... 189
Rates of secondary migration ................................... 198
Accumulation of petroleum in a trap .............................. 199
Origin and migration of petroleum in carbonate rocks .................... 200
References ................................................. 206

CHAPTER 10 . ORIGIN AND MIGRATION OF PETROLEUM: GEOLOGICAL
AND GEOCHEMICAL ASPECTS ................................ 209
Summary .................................................. 209
Introduction ................................................ 209
Coal and petroleum ......................................... 213
Primarymigration ............................................ 215
Crude oils with high wax content .................................. 220
Alteration of crude oil after generation: water-washing and biodegradation ...... 221
References ................................................. 226

CHAPTER 11 . ORIGIN. MIGRATION AND ACCUMULATION OF PETROLEUM:
DISCUSSION ............................................. 231
Summary .................................................. 231
Evidence of stratigraphic position of source for accumulations ............... 231
Petroleum migration and faults ................................... 245
References ................................................. 251

Part 2 . Petroleum geology of transgressive sequences
CHAPTER 12 . FOSSIL CORAL REEFS ............................ 255
Summary .................................................. 255
Introduction ................................................ 255
Silurian reefs of the Great Lakes area ............................... 259
Devonian reefs of western Canada .................................. 262
Cretaceous reefs of Mexico ...................................... 269
Paleocene reefs of Libya ........................................ 272
References ................................................. 276
CHAPTER 13 . PALAEOGEOMORPHIC AND UNCONFORMITY TRAPS ....... 279
Summary .................................................. 279
Palaeogeomorphic. palaeotopographic traps ........................... 279
Unconformity traps ........................................... 284
Prudhoe Bay oil field ........................................ 286
TheNorthSea ............................................ 291
Bass Strait oil and gas fields, Australia ............................. 296
References .................................................. 301

Part 3 . Petroleum geology of regressive sequences
CHAPTER 14 . ABNORMAL PRESSURES ............................ 303