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RILS - Open/Closed - Applied Core Analysis (PEMEX) - V7-20-GWG - How to Intepret Core Data

This is the remote delivered version on Applied Core Analysis - How to Interpret and Use Core Data. This course can be delivered in either public or closed formats. 

Applied Core Analysis focuses on practical methods that provide participants with an improved understanding of rock, pore and petrophysical properties as they apply to the interpretation of reservoirs.  The course covers  rock based petrophysics, including routine core analysis methods and special core analysis techniques.

The course focuses on the factors that control porosity, permeability, fluids, electrical properties, capillary pressure, and introduces the concepts of wettability and relative permeability data analysis. 

Participants learn by completing interactive exercises, workshops and if time permits look a some key references.  Participants have the chance to learn how to interpret routine and special core analysis and about the sources of error and example correlations of a log and core data set, resulting in a petrophysical rock type based saturation-height model.  


Module 1 - Approximately 2 hours (Example Agenda)

Course Introduction

  • Complete a technical assessment
  • Objectives of core analysis and coring methods
  • Preliminary characterization
  • Review Key Learnings

In Module 1 participants will go over the objectives for the course and be given a general introduction. 


Module 2 - Approximately 2 hours

Core Analysis Workflow for Reservoir Charcteriztion

  • Geologic Applications of Core Analysis
  • Lithology, Pore Geometry and Practical Thin Section Analysis
  • Fundamentals of Core-Log Integration
  • Review Key Learnings

Preliminary characterizations, including basics of core and log integration, and thin section petropgrahy will also be covered

Module 3 - Why SCAL Is Important for Model Building (Approximately 2 hours)

  • Key steps in subsurface integration
  • Core-Log Integration (what is the ground true....?)
  • Facies, Petrophysical Rock Types and Lithology
  • Properties of Simulation Grid Block and PETROman 
  • Review Key Learnings

Module 4 - Routine Core Analysis - Overview (Approximately 2 hours)

  • Core Preparation, RP40 and Rock Measurement
  • Bulk Volume, Pore Volume, Grain Volume and Total Porosity
  • Example Lab Videos (Vb, Vgr and Vp)
  • Applied RCA Workshop
  • Review Key Learnings


Module 5 - Absolute Permeability - Routine Core Analysis - Approximately 1.5 hours

  • Overview of Darcy's Law
  • Core plug selection (Sample quality control issues)
  • Basic measurement
  • Videos and Applied Workshop
  • Review key learning points


Module 6 - Total and Effective Porosity,  Applied RCA Workshops and Introduction to Basic Core-Log Integration - Approximately 1.5 hours

  • What is the difference between total and effective porosity from a core standpoint
  • Introduction to Core/Log Integration
  • Depth Shift Workshop
  • Basic Porosity - Permeability Workshop
  • Review key learning points

Module 6A - Invasion and Core Saturation from Bottom Hole to Surface  - Approximately 1 hours

  • What is the difference between total and effective porosity from a core standpoint



Module 7 - Introduction to Capillary Pressure and Pore Throat Radius- Approximately 2 hours

  • Washburn's Equation also known as Laplace's equation
  • Define "Drainage Cycle and Imibibition Cycle"
  • Capillary rise basic calculation
  • Capillary rise and pore throat radius size
  • Interactive workshops
  • Review Key Learnings

Module 8 - Applied Pc-HAFW-Sw-Distribution - Approximately 2 hours

  • Define what is displacement pressure and how it related to pore throat size
  • Simple animation of fluid contacts and reservoir quality
  • Interactive fluid contact & capillary pressure workshop
  • Review key technical paper
  • Examples and Case Studies
  • Review Key Learnings

Module 9  - Capillary Pressure Workshops - Approximately 2 hours

  • HAFW Excel - Workshop
  • Review key Technical Capillary Pressure Technical Paper 
  • Review Key Learnings

Module 10  - Introduce the Concept of Saturation Height Modeling Using Capillary Pressure and Petrophysical Rock Types - Approximately 2 hours

  • Define a saturation height model using 3 rock qualities
  • Discuss data requirements
  • Complete conceptual exercise with 3 PRTS by "hand" compare Pc-Sw to Well Log Sw
  • Review Key Learnings

Module 11  - SHM Workshop 3 and Bi-directional Capillary Pressure - Approximately 2 hours

  • Complete SHM Exercise 3 - Find the Free Water Level
  • Discuss capillary cycles drainage and imibibition 
  • Introduce wettability
  • Review Key Learnings

Module 12  - High Pressure Mercury Injection Porosimetry and Pore Geometry - Approximately 2 hours

  • Review the concept of displacement pressure and entrance pressure
  • Show lab videos of HPMI test
  • Complete Excel workshop converting lab mercury data to pore throat radius and height above free water
  • Review Key Learnings

Module 13 - SCAL HPMI Workshops - Approximately 2 hours 

  • Pore throat radius workshop
  • Displacement Pressure (corrected value)
  • Entry Pressure (lab observed)
  • Convert Mercury Pc to Equivalent Reservoir Pc
  • Convert Reservoir Pc to HAFW

Module 14 - Introduce Basic Petrophysical Rock Typing and Why It is Important (Part 1) - Approximately 2 hours 

    • Why petrophysical rock typing is important and how it is used in models
    • Introduce Winland style PRT methods and complete basic calculations
    • Discuss 2015 Mexico PRT Case Study
    • Show relationships between Pore Throat Radius, Sw and PRTs
    • Discuss Key Learning Objectives 


Module 15 - Deterministic PRT Analysis - Part 2  - Approximately 2 hours 

  • Introduce simple methods to estimate pore throat radius cutoffs
  • Complete Single Well PRT Excel Workshop - with vertical line cutoffs
  • Complete Single Well PRT Excel Workshop - with CDF or Probability cutoffs
  • Review 2018 SPE paper results
  • Discuss Key Learning Objectives 

Module 16 - SCAL - Electrical Rock Properties and Carbonate Pore Geometry Workshop - Approximately 2 hours 

  • Introduce SCAL Electrical Rock Properties (what is m and n)
  • Participants complete an Excel ERP Workshop
  • Participants complete a carbonate pore geometry workshop
  • Participants will present their workshop results
  • Discuss Key Learning Objectives 


Module 17 - Introduce the concept of Relative Permeability - Approximately 2 hours 

  • What is relative permeability and why is it important
  • What are steady state and unsteady state measurements
  • What data is needed to model reservoir performance for "reservoir management"
  • Discuss Key Learning Objectives 

Module 18 - Final Well Review Workshop - Approximately 2 hours 

  • Comprehensive final workshop
  • Participants will present their final results
  • Discuss Key Learning Objectives 

Final Well Analysis Technical Assessment  - Approximately 1 hr

Module 19  - Wettability & Course Wrap Up - Approximately 2 hour

  • Review all key learnings
  • Participants complete final assessment
  • Participants complete course evaluation

 

The intended audience of this course includes geologists, geophysicists, reservoir engineers, production engineers, and petrophysicists.  Participants should have an awareness level of knowledge on porosity, permeability. fluid saturation, petroleum geology and capillary pressure.

Currently there are no scheduled classes for this course.

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