Codice identificativo insegnamento: 095951
Programma
sintetico:
Key processes that control fluid
movement in basin to reservoir scales. Fluid flow in porous
and fractured media, saturation profiles. Permeability and relative
permeability. Darcy’s Law (phenomenology and theoretical derivation).
Anisotropic media and permeability tensor. Scale dependence of hydraulic
properties and heterogeneity; theoretical and empirical correlations
between flow parameters (specific storage, porosity, permeability).
Interpretation of laboratory scale flow experiments on uniform and
heterogeneous systems.
Multi-phase flow in porous and
fractured media. Multiple phases in equilibrium: Young-Laplace
Equation; spreading coefficient; wettability; flow in capillary tubes;
contact angle hysteresis. Three- and two-dimensional models for single
phase fluid flow in porous media. Initial and boundary conditions.
Analytical solutions. Continuous models of fractured systems and discrete
fracture networks. Variably saturated flow models. Primary drainage and
imbibition. Water content, surface tension, capillary pressure, retention
curve, hysteresis. Motion equation: coupling between the phases and Darcy’s
Law for variably saturated flows. Effective permeability. Examples of
analytical solutions. Displacement processes in mixed-wet media. Basic
elements of three-phase flow.
Solute transport processes.
Advection Dispersion Equation (ADE) for single dissolved species.
Dispersivity tensor. Laboratory and field- scale tracer tests and their
interpretation in unconsolidated and fractured systems. Random Walk and
continuous time random walk models. Multi-component reactive transport.
Models of precipitation-dissolution, sorption and homogeneous reactions in
porous media. Interpretation of laboratory experiments. Diagenesis in
sedimentary basins.
Data Integration for Petroleum
Reservoirs and Inverse Modeling. Introduction and application
of techniques aimed at incorporating reservoir scale data (including
geological information) and dynamic reservoir behavior into reservoir
characterization models; dynamic data in the form of pressure transient
tests, tracer tests, multiphase production histories. Well test
interpretation techniques in unconsolidated and fractured formations and
practical considerations for system characterization. Uncertainty
quantification in the characterization of heterogeneous reservoirs: basic
principles of geostatistics; probabilistic approaches to flow and transport
in heterogeneous reservoirs. General formulation of inverse problems in
heterogeneous reservoirs. Model calibration and validation.