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Oil & Gas Training
and Competency Development
Competency Management system SLB NEXT

Integrated Wellbore and Reservoir Analysis: From Pore to Well Test Scale

The goal is for participants to develop subsurface skills for integrated analysis of rock, pore, well test and fluids to solve problems associated with identifying and exploiting reserves. Experience gained will allow participants to apply tools for analysis of the underlying uncertainty and assumptions used in many reservoir analysis techniques. A subsurface integration process model is presented which provides a multidiscipline methodology for solving reservoir problems, from facies, petrophysical rock typing,flow unit and the basics of well test information for a better understanding of reservoir characterization and the input required for a reservoir mode

Day 1
  • Introduction, integration work and thought process
  • Rock Types/Flow units and reservoir characterization
  • Applied examples and deliverables
  • Geologic framework, mineralogy, reservoir compartmentalization, formation evaluation
  • Introduction to static and dynamic reservoir simulation
  • Introduction to the conceptual 3-Line log analyis method
  • Applied hands on workshops
Day 2
  • Introduction to reservoir and lithofacies
  • Participant presentation 1 - Facies workshop results
  • Carbonate pore-geometry, thin-section and petrophysical description workshop and presentation
  • Introduction to Routine Core Analysis
  • Core porosity
  • Workshop - Golfball challenge
  • Overview of well log porosity, total and effective porosity
Day 3
  • Overview of core permeability (absolute, effective, Klinkenburg corrected and relative permeability)
  • Basics of net mean stress
  • Fundamentals of Petrophysical rock types
  • Overview and the concept of practical capillary pressure and applications
  • Workshop - Capillary pressure analysis
  • Saturation distributions from rock types, and capillary pressure data
  • What is Winland (Pittman) pore throat radius and why is it important
  • Workshop - Winland Plots by Facies
  • Workshop - Simple core analysis using Winland based method
Day 4
  • Clastic - Facies and Petrophysical rock types case studies
  • Carbonate - Facies and Petrophysical rock type case studies
  • Capillary pressure and pore geometry, stress and reservoir performance, petrophysical quick scan analysis
  • Introduction to saturation height methods (SHM)
  • SHM case studies both clastic and carbonate
  • SHM Workshop - Well evaluation with core and log data
  • Participant presentations of workshop results
Day 5
  • Introduce flow unit concept, analysis and workshop
  • Introduction to pressure gradient analysis and determining free water level
  • Introduction to well test analysis and how the results can be integrated into a reservoir characterization
  • Final well analysis workshop - facies, core-log petrophysical rock types, flow units and saturation height model Individual and presentations
Learning activity mix

Geologists, geophysicists, reservoir engineers, production engineers and petrophysicists. This class is ideal for asset teams.

  • Generic integrated workflow process
  • Integration of geology, facies and petrophysical rock types
  • Concept of total and effective porosity
  • The basics of core-log integration
  • Applied capillary pressure, wettability and relative permeability
  • "Water saturation is not an accident......"
  • Upscaling from pore throat radius to oetrophysical rock type to flow units
  • Introduction to saturation heoght modeling
  • Why petrophysics is the key to sucess in a static or dynamic model
  • The relationship between the free-water level, various contacts, pore throat radius, wettability and saturation distribution
  • How to use pressure gradient analysis to establish the free water level.
  • A basic introduction to well test analysis and how the results can be integratedfor an improved reservoir characterization.

A working understanding of geology, reservoir properties and petrophysics.

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