Course Schedule

Description


Formation evaluation is a critical process in the oil and gas industry, determining the viability of reservoirs and supporting efficient resource development. This course focuses on integrating multiple data sources, including well logs, core analysis, and dynamic reservoir data, to achieve a holistic evaluation of subsurface formations. Through real-world examples and practical exercises, participants will refine their skills in data interpretation and collaborative decision-making.



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Course Description

Introduction


Reservoir management is an on-going, dynamic process of collecting, analyzing, validating, and integrating reservoir description data and performance data into an optimal reservoir development and depletion plan.  This training course provides the participants with an advanced understanding of the integrated formation evaluation techniques and well log analysis applications. The course will cover the physical principles of the logging tools and the full advanced interpretation workflow for reservoir characterization. The course progresses from the measurement fundamentals to the essential evaluation and assessment of the results and onto the practical applications in example studies and exercises.



More specifically, the participants will understand the properties of the rocks and the reservoir fluids; analyze and integrate the core analysis datasets; evaluate the NMR logs and run the full NMR interpretation workflow; run pressure plots and detect the free water level/oil water contact and run saturation height modeling. The course will cover the log interpretation workflow with the quantitative techniques for the quality control and quality assurance procedures for the raw datasets. Different real examples from different parts of the world will be used throughout the course to help the attendees understanding the reservoir characterization concept and the integrated analysis.

Objectives


  • Understand the principles of formation evaluation and data integration.
  • Learn to interpret geological, petrophysical, and engineering data for reservoir characterization.
  • Develop skills to optimize reservoir modeling and production strategies.
  • Enhance decision-making with a multidisciplinary approach to formation analysis.
  • Gain proficiency in using industry-standard tools and techniques.
  • Training Methodology


  • Instructor-led presentations and discussions.
  • Case studies from real-world reservoir evaluations.
  • Interactive workshops and hands-on exercises.
  • Collaborative problem-solving sessions.
  • Practical application of industry tools and software.
  • Organisational Impact


  • Improve exploration and production efficiency.
  • Reduce uncertainties in reservoir characterization.
  • Enhance interdisciplinary collaboration among teams.
  • Optimize resource management and operational decision-making
  • Personal Impact


  • Gain advanced skills in integrated formation evaluation.
  • Increase career opportunities in reservoir characterization and subsurface analysis.
  • Develop confidence in using industry tools and interpreting complex data.
  • Build expertise in multidisciplinary collaboration and decision-making.
  • Who Should Attend?


  • Geologists, petrophysicists, and reservoir engineers.
  • Production and drilling engineers involved in reservoir development.
  • Professionals seeking to enhance their understanding of integrated reservoir evaluation.
  • Decision-makers and managers overseeing exploration and production activities.
  • Course Outline


    Day 1


    Oilfield lifetime & development

    Integrated reservoir characterization workflow

    Reservoir modeling overview

    Role of reservoir rocks & fluids

    Reservoir geology & geological structures

    Depositional environments

    Wellsite Geology & mud logging

    MWD/LWD vs. wireline logging

    Open hole vs. cased-hole logging

    Log data acquisition, data processing, log runs, and log presentations

    Logs QC/QA, Depth matching, and log normalization

    Log interpretation - correlate and depth match logs.

     


    Day 2


    Wireline logging operations

    Open hole logging measurements

    Integrated formation evaluation plan

    Logging tools specification, depth of penetration and vertical resolution

    Lithology tools

    Radioactivity and Gamma Ray (GR) logging tools

    Shale volume calculation

    Applications of Spectral GR

    Spontaneous potential measurements and SP log interpretation

    Calculation of formation water resistivity (Rw) using SP log

    Applications of crossplots to detect lithology, porosity and mineralogy

    Discussions and class exercises



    Day 3


    Porosity logging tools

    Density and neutron logging tools

    Porosity logs (NPHI, RHOB, PEF, DT, etc.)

    Density-Neutron Logs Applications

    Sonic logs and sonic scanners

    Porosity compatible scales

    Porosity calculation from individual tools

    Various corrections for porosity tools

    Crossplots applications in formation evaluation

    Crossplots for complex formations: neutron-density, sonic-density, sonic-neutron, density-photoelectric, M-N crossplots

    Porosity evaluation through the different porosity tools

    Porosity evaluation in clean and shaly formations

    Gas effect on density-neutron logs

    Matrix correction for clastics and dolostone rocks

     


    Day 4


    Independent porosity tools/core measurements

    Acoustics logging tools

    Effect of different parameters: clays, secondary porosity, and fractures.

    Nuclear magnetic resonance tool - its principle of operation.

    Conventional core analysis

    Core data statistics; detecting the reservoir heterogeneity

    Rock Quality Index (RQI) and Flow Zone Indicator (FZI)

    Reservoir electrofacies and permeability modeling

    Examples and practical exercise using actual core data for advanced reservoir evaluation

    Core integration with wireline and LWD logs

    Coring practices and reservoir rock properties

    Hydraulic flow units & rock typing

    Integration of core and logging porosity data

    Discussions and class exercises



    Day 5


    Resistivity logging tools

    Dual Laterolog and Array Induction Logs

    Borehole environment and invasion profiles.

    Resistivity Logs (MSFL, MCFL, LLS, LLD, RLA3, RLA5, AIL, etc.)

    Water resistivity calculation methods

    Hingle and Pickett plots

    True resistivity determination

    Clean reservoir vs. shaly reservoirs

     


    Day 6


    Archie equation and parameters

    Electrical measurements on core samples

    Saturation calculation in clean and shaly reservoirs

    Saturation determination: resistivity vs porosity crossplot, microresistivity vs porosity crossplots, resistivity ratio methods, shaly formations.

    Effect of cementation factor and saturation exponent

    Shale sand models: dual-water, Waxman-Smits, and Thomas-Steiber models. 

    Low resistivity – low contrast pay

    Independent saturation tools/core measurements

    Cementation factor and saturation exponent from the core analysis

    Saturation-height modeling

    Quick look log analysis for real-time decisions

    Discussions and class exercises



    Day 7


    Development of clastics and carbonate reservoirs

    Rock mechanical properties

    Image logs (FMI, XRMI, etc.)

    Applications of image logs

    Wireline formation testers (MDT, XPT, and RDT)

    MDT/RFT principles and operations

    Pressure measurement quality control

    Reservoir drive and fluid properties

    Applications of pressure data for integrated evaluation

    Determination of the fluid contacts

    Fluid sampling techniques

    Cutoff concepts




    Day 8


    Advanced nuclear magnetic resonance (NMR) logs

    Applications of NMR logs for porosity and permeability measurements

    Overview of cased hole logs

    Cement evaluation logs

    Saturation monitoring logs (RST and pulsar)

    Permeability prediction models

    Petrophysical inputs for static and dynamic modeling

    Advanced logging tools

    Physics of NMR tools

    NMR measurements on core samples

    NMR interpretation integration with conventional logs



    Day 9


    Capillary pressure data

    Facies variations from the capillary pressure curves

    Reservoir pressure analysis

    Understanding the concept of the oil water contact and FWL

    Upscaling of well logs



    Day 10


    Overview of 3D property modeling

    Clay versus Shale – difference between the two workflows

    Mineralogical interpretation

    Calibration of the shale volume, porosity and water saturation

    Practical examples/exercises using different well log data in clastic and carbonate reservoirs

    Analysis using Petrophysics Software Packages

    Integrated log interpretation

    Discussions and class exercises

    Certificates

    About The Trainer