N314 Advanced Petrophysics for Conventional Reservoirs

Course Facts

Course Code:
2 days
1.6 Continuing Education Units
16 Professional Development Hours
Certificate Issued Upon Completion


This advanced level petrophysics course explores some of the new tools, methods and technology in the area of formation evaluation of conventional reservoirs. The course includes developments in wireline and LWD tools as well as special core analysis measurements and how they can be used in reservoir characterization. Particular emphasis is given to diagnosing reservoirs that exhibit ‘low contrast’ behaviour and the recently developed tools available for evaluating them.  

Duration and Training Method

A two-day course consisting of a mixture of classroom lectures and log-based interpretation exercises using MS Excel and PC-based interpretation software. The ratio of lecture to computer time is approximately 70/30.

Participants will learn to:

  1. Assess the different modes of shale distribution and calculate the net-to-gross of a laminated series from industry crossplot methods.
  2. Estimate the hydrocarbon reserves in a thinly bedded sand-shale sequence.
  3. Evaluate the tool response of multicomponent induction and nuclear magnetic resonance in a thin bedded sand shale sequence.
  4. Judge the advantages and limitations of nuclear magnetic resonance measurements for porosity, saturation and permeability.
  5. Develop a permeability model from nuclear magnetic resonance data by calibrating industry relationships to core data.
  6. Develop a saturation-height model of a heterogeneous reservoir using capillary pressure data and J-functions.

1. Introduction

  • Recent Developments in Petrophysics and Formation Evaluation.

2. Shale Distribution in Clastic Reservoirs and Resistivity Anisotropy

  • Laminar, Dispersed and Structural Shale/Porosity Models, Thomas-Steiber Crossplots, net-to-gross in thin bedded environments, scaler vs. tensor measurements, multicomponent induction tools, interpretation methods.

3. Using Capillary Pressure Data for Reservoir Models

  • Air-Hg, Centrifuge and Porous Plate Core Methods, converting lab data to reservoir conditions, Leverett-J and Thomeer cap pressure models, permeability from cap pressure, saturation-height models, FWL-OWC definitions.

4. Theory and Interpretation of Magnetic Resonance (NMR) Data

  • Measurement principles, porosity and saturation methods and limitations, pore size distribution and permeability models (Coates and SDR), fluid identification, thin bed response, T2 measurement on cores, challenges with carbonates.

5. Principles of Dielectric Logging

Who should attend

The course is designed for geoscientists and engineers with 4-5 years or more of industry experience who work in prospect generation, development studies and regional evaluations as well as petrophysicists with 2 years or more of experience seeking to broaden their skill level and kept abreast of new industry technology.

Prerequisites and linking courses

The course is designed as an advanced level compliment to N054 (Petrophysics in Evaluation of Conventional Reservoirs). Participants should have an intermediate level of petrophysical interpretation skills, as presented in either N054 or N187 (Low Resistivity, Low Contrast Pay).

Linking courses include N004 (Essentials of Rock Physics for Seismic Amplitude Interpretation), N013 (Overpressure in Petroleum Systems and Geopressure Prediction), N105 (Carbonate Petrophysics, US only), N267 (Petrophysics for Shale Gas, US only) and the field course N030 (Rocks and Fluids: Practical Petrophysics, Isle of Wight, UK).

Click on a name to learn more about the instructor

David Eickhoff

The course overall was very good. The instructor was well prepared and quite knowledgeable. The exercises were perfect tools to enforce the lessons.