# Course Information

Duration (hours) | 39 |

ECTs | 5 |

Practice | Laboratory |

Instructor(s) | Prof. Nikos Varotsis |

# Description

Introduction to reservoir engineering, fluid pressure regimes, phase behavior, reservoir fluid sampling, porous media, rock-fluid interactions, fluid flow in porous media, well testing, well performance, material balance and natural reservoir drive mechanisms, oil immiscible displacement.

# Syllabus

| Hydrocarbon reserves, formation pressure regimes investigation, petroleum fluids compositional characterization, mixing fluids, definitions, petroleum indices. |

| Phase behavior of single components, of 2-component mixtures, of petroleum & natural gas mixtures, phase envelopes, virial equations, deviation factor Z. |

| Ideal gas equation of state, van der Waals EoS, real gas EoS, Katz method for calculating Z-factor, gas formation volume factor, solution gas-to-oil ratio, fluid compressibility factor, oil density & viscosity, oil formation volume factor, total FVF, produced fluids composition recombination. |

| Solving the vapor/liquid flash problem, reservoir fluids sampling. |

| PVT studies, samples validation, physical recombination, reservoir oils PVT study, gas condensates PVT study. |

| Porosity, permeability, downhole reservoir core sampling, core analysis, linear flow of incompressible fluids, fluid flow under slope. |

| Fluid flow under slope, radial flow, flow of slightly compressible fluids, real gas potentials, gas flow. |

| Wellbore damage, hemispherical flow, flow regimes with time, wettability, capillary pressures, relative permabilities. |

| Capillary pressures application, phases distribution in the formation, diffusivity equation, transient, pseudo-transient and stabilized flow periods. |

| Stabilized flow equations, transient flow equation, shape factor, transient flow equations, well inflow performance, IPR & VLP curves. |

| Real gas flow equations, stabilized inflow equations, transient flow equations, well testing, hardware, introduction to well test interpretation. |

| WTI fundamentals, straight line specialized plots, Horner & superposition plots, skin factor calculation. |

| Modern WTI methods, dimensionless variables, type curve analysis, pressure derivative analysis. |

Petroleum Engineering postgraduate program of the Technical University of Crete is a one-year, full-time program, designed to provide students with a scientific background in hydrocarbon exploration and skills in the practical aspects of petroleum engineering. The program begins in October, and leads to a Master of Science (MSc) degree. The program is run by the School of Mineral Resources Engineering.