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Course Schedule
Classroom Sessions:
Date Venue
31 Mar  - 04 Apr 2025 London
17-13 Oct 2025 Dubai
2025/12/29 London
Introduction

INTRODUCTION

This GLOMACS Reservoir Quality Analysis  of Sandstone & Carbonate Rock Types training program is designed to provide comprehensive guidance to geologists working in the oil industry on understanding the characteristics of sandstone and carbonate rocks relevant to reservoir quality. Through reservoir quality analysis, participants will learn to discern the primary factors influencing porosity and permeability evolution in sandstone and carbonate reservoirs, including depositional processes, provenance, and diagenetic changes (such as porosity evolution with burial depth, mineral composition, and diagenetic settings). Case studies from both sandstone and carbonate hydrocarbon reservoirs will be explored to enhance understanding.

This Reservoir Quality Analysis  of Sandstone & Carbonate Rock Types training course will highlight:

  • Introduction to siliciclastic and carbonate reservoirs, focusing on factors influencing reservoir quality.
  • Understand sandstone characteristics including composition, origin, diagenesis, and geological settings.
  • Understand carbonate features such as constituent types, classification, and diagenetic processes.
  • Conduct petrographic analyses (thin sections, scanning electron microscopy, cathodoluminescence), X-ray diffraction, QEMSCAN, and integrating results to assess reservoir quality.
  • Classify porosity, examining its evolution relative to burial depth, stratigraphy, composition, authigenic elements, and diagenetic environments.
  • Discussing the concept of rock typing, various schemes for categorizing rocks, and analyzing uncored reservoir sections.

Objectives

By the end of this Reservoir Quality Analysis  of Sandstone & Carbonate Rock Types training course, participants will:

  • Gain insight into the diverse sandstone hydrocarbon reservoir types and their primary influences on reservoir quality.
  • Acquire knowledge regarding the various types of carbonate reservoirs and the key factors affecting reservoir quality.
  • Develop the ability to distinguish between depositional, provenance, and diagenetic indicators in analyzed sandstones and carbonates.
  • Be capable of integrating and interpreting porosity-permeability data in relation to stratigraphy and regional geology.
  • Comprehend the principal rock-based methodologies utilized in reservoir quality analyses.
  • Familiarize with the concepts of rock typing and conducting petrophysical comparisons between cuttings and core samples.

Training Methodology

This training course is based in PowerPoint presentations, numerous real-world examples and practical sessions with exercises. Examples of thin sections, SEM and CL analyses are also presented to understand the workflow to integrate different methodologies used for reservoir quality evaluation. 

Clients are encouraged to provide examples of reservoirs their companies are working with so that the data is reviewed and potentially new methodologies and solutions to their reservoir problems can be discussed.

Organisational Impact

Organisations sending their employees to attend this training course will benefit by:

  • Enhancing the expertise of employees in sedimentary petrography.
  • Equipping employees with a practical understanding of reservoir quality methodologies.
  • Empowering employees to gather, analyze, and interpret datasets ranging from single-well to multi-well in sandstone and carbonate reservoirs.
  • Enhancing employees` proficiency in utilizing oil industry data collection software.
  • Improving employees` effectiveness and efficiency in data interpretation.
  • Enhancing employees` understanding of contemporary sandstone and carbonate reservoirs for potential use as analogs in regional exploration studies.

Personal Impact

The participants in this Reservoir Quality Analysis  of Sandstone & Carbonate Rock Types  training course will:

  • Enhance technical proficiency in data collection methodologies.
  • Increase speed in interpreting reservoir quality findings.
  • Access a selection of exercises and materials for self-directed training sessions.
  • Conduct knowledge-sharing sessions on the covered topics within their organization.
  • Prepare rock descriptions and sections of geological reports using skills acquired during training sessions.

WHO SHOULD ATTEND?

This GLOMACS Reservoir Quality Analysis  of Sandstone & Carbonate Rock Types training course is suitable for a wide range of professionals but will greatly benefit: 

  • Geologists of service and oil companies
  • Junior to mid-level geologists carrying out rock-based geological projects
  • Sedimentologists who need to be conversant on rock typing concepts
  • Petrographers of small and large oil industry organizations
  • PhD students in sedimentary geology at academic institutions

Objectives

Training Methodology

Organisational Impact

Personal Impact

Who Should Attend?

Course Outline

Day 1

Introduction to Siliciclastic Reservoirs

  • Siliciclastic rocks: understanding sediment texture, detrital components, and depositional environments.
  • Sandstone characteristics: classification, minerals, source areas, and depositional markers.
  • Provenance and tectonic settings: exploring sandstone composition and its geological context.
  • Reservoir quality: examining the relationship between depositional environments, provenance, and grain size analysis.
  • Diagenesis: considering compaction, authigenic components, diagenetic environments, and sequences.
  • Analytical techniques: discussing SEM, XRD analyses, CL analysis for cement distribution, and the chronology of diagenesis.

Day 2

Sandstone Reservoir Quality Analysis

  • Reservoir quality: understanding its definition and methodologies, including the influence of cementation.
  • Porosity in sandstones: exploring different types and their significance.
  • Porosity-permeability analysis: methods for interpretation, including correlation with petrophysics from cuttings descriptions.
  • Utilizing outcrop analogues: estimating subsurface reservoir quality through geological comparisons.
  • Rock Typing: assessing petrophysical properties of cuttings, including analysis of rock types and classification schemes from oil industry methodologies.
  • Diagenetic controls: examining how diagenesis influences reservoir quality and porosity variations with depth and stratigraphy.

Day 3

Introduction to Carbonate Reservoirs 

  • Introduction to carbonate reservoirs: an overview of their characteristics and significance.
  • Limestone components: understanding carbonate depositional environments, facies, and variations in the geological record.
  • Matrix and authigenic components: exploring the relationship between taxa and mineralogy, alongside limestone classification.
  • Carbonate production rates: examining microfossils, paleoenvironmental markers, platform facies, and their response to sea level changes.
  • Carbonate diagenesis: considering processes such as neomorphism, compaction, marine, meteoric, and burial diagenesis.
  • Diagenetic markers: identifying stages of carbonate diagenesis and their implications.
  • Dolomite characteristics: studying textures, stable isotope signatures, and their significance in carbonate reservoirs.

Day 4

Carbonate Reservoir Quality Analysis

  • Carbonate diagenesis and reservoir quality: understanding dolomite texture, petrophysical implications, dolomitization models, and comparing limestone versus dolostone reservoir quality.
  • Porosity in carbonate rocks: exploring classification schemes, petrophysics based on carbonate rock types, factors influencing porosity preservation, and methods for estimating porosity.
  • Controls on reservoir quality: considering the influence of rock fabric, wireline logs, and porosity evolution over geological time.
  • Carbonate reservoir models: assessing reservoir quality in relation to porosity and petro-facies.
  • Rock typing: discussing concepts, petrophysical assessment methods, classification schemes, data sheets, and their relevance to reservoir quality.
  • Single well versus multi-well studies: highlighting the importance of regional correlations for understanding reservoir quality variations.

Day 5

Examples of Siliciclastic and Carbonate Reservoirs

  • Reservoir facies in a carbonate shelf, slope and basinal setting: Jurassic, Western Portugal.
  • Siliciclastic reservoirs of Oman: Aeolian, deltaic and marine sandstones and other reservoirs.
  • Visual estimation of porosity in sandstone and carbonate reservoirs.
  • Differences in the controls on reservoir quality between sandstones and carbonates
  • SEM/EDX/XRD images and plots and comparison with FMI and other methods
  • References and further reading on petrography, petrophysics and reservoir quality
الشهادات المُعتمَدة
  • On successful completion of this training course, GLOMACS Certificate will be awarded to the delegates
  • Continuing Professional Education credits (CPE) : In accordance with the standards of the National Registry of CPE Sponsor, one CPE credit is granted per 50 minutes of attendance
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