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| Geological Magazine | ![]() |
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Review |
| The first 20% of the full text of this article appears below. |
Petroleum kitchens, migration routes and traps evolve independently within a PT-depth framework that is constantly changing. There is thus time-variant compositional variation in what is generated at source and retained in the trap; moreover sources may be multiple and phase separation during migration may result in differing fractions moving at different speeds and, where pore-water moves laterally, different directions. To what extent hydrocarbons in the trap mix and/or reach thermodynamic equilibrium under gravitational and thermal forces is a critical quantitative consideration for reservoir engineers who want to constrain modelling scenarios for PVT behaviour and flow properties during production and their impact on the economics of ultimate recovery. Related
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