Properties and Characterization of Reservoir Fluids and Rocks

Introduction:

This course on the analysis of reservoir fluid and rock and its application in the oil and gas industry equips students with the skills to accurately measure reservoir characteristics. It covers essential topics such as profiling the chemical composition of hydrocarbons, conducting laboratory PVT tests, and implementing quality control measures. Participants will gain the ability to appraise and make decisions regarding fluid and rock properties in geosciences.

The course also focuses on reservoir characterization, utilizing computer-based predictions of physical properties that integrate core analysis data from wireline logs and well data for specific calculations. By employing modern petrophysical diagnostics, students will gain precise estimations of reservoir rock properties and their interaction with interfacial density.

Objectives:

Upon completion of this reservoir fluid and rock analysis course, participants will be able to:

• Identify the characteristics of reservoir fluids and the impact of temperature and pressure on their states.
• Determine phase behavior characteristics in relation to viscous friction-reducing mediums.
• Employ various tools and techniques for reservoir fluid sampling.
• Characterize different reservoir rock properties and their measurement techniques.
• Interpret and synthesize core data to inform appropriate reservoir engineering responses.

Training Methodology:

• Formal classroom presentations
• Experimental laboratory classes
• Systematic subject area presentations
• Dissertation work
• Classroom exercises
• Industry examples
• Q&A sessions
• Organized activities outside the classroom

Course Outline:

Unit 1: Reservoir Fluids and their Behavior:

• General Background
• Fractures of Naturally Occurring Petroleum Systems
• Identification of Molecules – Basic Molecules and SCN Fractionation
• Behavior of Pure Components
• Two-Component, Three-Component, and Multicomponent Systems
• The Five Common Reservoir Fluids
• Monotonic and Compositional Gradients in Biological Systems

Unit 2: Properties of Reservoir Fluids (1 Day):

• General Parameters of Real Gases
• Characteristics of Dry Gases
• Characteristics of Wet Gases
• Characteristics of Black Oils
• Characteristics of Retrograde Gases
• Characteristics of Volatile Oils

Unit 3: Reservoir Fluids Sampling and Analysis, PVT Reports and Application (1 Day):

• Methods of Reservoir Fluids Sampling
• Equipment for Reservoir Fluid Sampling
• Adjusting the Well
• Utilizing PVT Laboratory Data for Reserve Estimates

Unit 4: Introduction to Reservoir Core Analysis and Measurement of Porosity (1 Day):

• Appraisal of Core Samples in Reservoir Management
• Causes of Core Damage and Alteration of Rock Properties
• Fluid Saturation and Wettability Alteration
• Destruction of Fluid Saturation and Structural Properties of Clay Damage Matrix
• Concepts of Total and Effective Porosity
• Core Porosity, Pore Pressure, and Pore Pressure Compressibility
• Porosity Reconciliation: Comparing Core and Log Porosity Measurements

Unit 5: Permeability, Saturation, and Capillary Pressure Measurements (1 Day):

• Effective Permeability and Saturation with Water
  • Measuring Core Permeability
  • Estimation of Permeability by Well Test and Log Analysis
  • Interrelationships and Scaling
  • Water Saturation
  • Direct Core Measurements
  • Cross-Analysis of Core and Log Data
• Relative Permeability
  • Theories and Definitions
  • Statistical Data Processing
  • Laboratory Measurement Methods
  • Relative Permeability Factors
  • Applications, Normalization, and Data Averaging
• Capillary Pressures
  • Liberation Compression and Cross-Contact Capillary Pressure Effects