N095 Integrating Core and Log Data for Reservoir Characterisation

Course Facts

Course Code:
N095
Duration:
4 days
Type:
Classroom
CEU:
3.2 Continuing Education Units
PDH:
32 Professional Development Hours
Certificate:
Certificate Issued Upon Completion

Summary

The course examines various uses of core, including, core planning, its acquisition and handling, geological and petrophysical core description, routine and special core analysis, core logging and description, as well as effective interfacing with coring and core analysis contractors. The course takes place in a core store facility, with immediate access to a range of varied examples.

Duration and Training Method

A four day workshop based in a core store. The workshop comprises lectures (30%), hands-on practical exercises involving a wide variety of core material (50%) and visits to a coring contractor and a core analysis laboratory (20%).

Participants wil learn to:

  1. Demonstrate the full value of core data and lead discussions on whether coring is justified for given wells and circumstances.
  2. Undertake core acquisition and oversee core handling and preservation.
  3. Initiate a basic core description.
  4. Demonstrate the role of routine core analysis and special core analysis in reservoir characterisation, and have a basic knowledge of how the measurements are made.
  5. Undertake and oversee a routine core analysis programme, knowing the full range of geological analyses possible on core material.
  6. Analyse a suitable sample set for a special core analysis programme.
  7. Relate core analysis data with the overall core description.
  8. Relate core derived data with log data, including log calibration and its potential pitfalls.

Core provides the geoscientist, petrophysicist and reservoir or completions engineer with material unique in terms of the measurements and observations which can be made on it – data which can vastly reduce subsurface uncertainty surrounding in-place volumes, recoverable reserves and well costs. This is the value of core.

The workshop takes an overview of coring and core processing, core measurements and how they are used, core observations and how they can be interpreted. The importance of a cross-disciplinary approach, of understanding samples’ context in terms of the reservoir as a whole, and of integrating core data with other subsurface datasets is emphasized.

The lectures cover the topics listed below. The practicals allow participants to work with a variety of core through an overall reservoir characterisation workflow of data integration, practising core description and tying it to log data, routine and special core analysis.

On completion the attendee will have a clear overview understanding of the processes and techniques applied to core, and of how core can add value by impacting subsurface uncertainty.

Lectures covering:

  • Core acquisition, handling and preservation
  • Core sampling
  • Core description
  • Core to log integration
  • Geological characterisation techniques
  • Routine core analysis
  • Special core analysis, and other measurements
  • Core programme planning and integration
  • Value of core - case histories
  • Supervising core analysis and description contractors
  • Controls on Reservoir Quality

Practical exercises involving a wide range of reservoir types and covering:

  • Core description
  • Integration of core observations with the core-derived data and with other datasets as available (e.g. poroperm data, Sw and mercury injection data, CT images, wireline logs, RFT measurements, biostratigraphy etc.)

Who should attend

All subsurface disciplines - geoscience, petrophysics, reservoir engineering.

Prerequisites and linking courses

There are no formal prerequisites for this class, due to its introductory nature, however, a basic knowledge of sedimentology would be advantageous, though not essential.

Several classes, at Basic Application Level, link well with this class. N083 (Introduction to Petrophysics and Formation Evaluation) focuses on introducing a number of the fundamental concepts of petrophysics, including how it relates directly to core. Both N003 (Geological Interpretation of Well Logs) and N121 (Modern Petrophysical Interpretation of Well Logs) deal with additional log data and its key interpretations, whether geological (N003) or petrophysical (N121).

Click on a name to learn more about the instructor

Doug Boyd

Jenny Garnham

Found this course to be very useful and insightful - feel much better equipped to plan a coring programme and understand the data we get from core. Great course, perfect length or time & pace - thanks!