Eclipse Simulation of Naturally Fractured Reservoirs

Fundamentals of Naturally Fractured Reservoirs

• Introduction to naturally fractured reservoirs
• Definitions and classification of fractures and fractured reservoirs
• Fracture properties
• Characterization of fractured reservoirs

This module is an introduction, with definitions that are related to naturally fractured reservoirs. It is not intended to cover the full theory of naturally fractured reservoirs. This module equips you with the basic information and terminologies used in the in the training.

Fractured reservoir modelling

• Overview of fractured reservoir modelling
• Fracture network generation
• Discrete fracture network upscaling
• Fracture model calibration

This module is an introduction to fracture modeling for reservoir engineers. The principles of fracture modeling encourage a multi-disciplinary collaborative approach when you model and simulate fractured reservoirs.

Numerical simulation of flow in fractured reservoirs

• Types of numerical simulation models for fractured media
• Flow equations for single porosity models
• Flow equations for dual porosity models
• Dual porosity implementation in Eclipse
• Facilities to model partially fractured reservoirs
• Petrel RE interface to define DP / DPDP simulation cases

This module discusses the theory behind numerical simulation models that you use to predict flow in fractured reservoirs. There are several numerical simulation approaches available, based on your modeling objectives and the type of fractured reservoir.

Recovery mechanisms in fractured reservoirs

• Expansion
• Viscous displacement
• Spontaneous imbibition
• Gravity drainage / imbibition
• Molecular diffusion
• Relevant Eclipse keywords

This module shows you how to extend single-phase flow equations to multi-phase flow. You will learn about capillary, gravity, and viscous-driven flow in fractured reservoirs. You will develop an understanding of why the interactions between fractures and rock during gas or water injection is critical when you estimate recoveries. You also learn about common recovery mechanisms in fractured reservoirs, such as expansion, viscous displacement, spontaneous imbibition, gas gravity drainage, and diffusion.

Advanced options for naturally fractured reservoir simulation

• Integrated capillary pressure option
• Multi-porosity option
• Triple porosity
• The conductive faults model in Eclipse 300

This module presents some advanced options that help you improve accuracy and flexibility when you model naturally fractured reservoirs.

Calibration and history matching of fractured reservoir models

• Dynamic calibration of fracture data
• History matching with preserved geological consistency
• Examples of cross-correlations of fracture properties

This module reviews the calibration steps necessary to match production logging and well testing results. It discusses the general history matching problem of naturally fractured reservoirs and presents a collaborative approach to obtain consistent history matching models.

Unconventional reservoirs

• Coal Bed Methane reservoir models
• Shale gas
• Hydraulic fractures

This module presents some advanced options that help you improve accuracy and flexibility when you model naturally fractured reservoirs.