Core analysis : a best practice guide

✍ Scribed by McPhee, Colin; Reed, Jules; Zubizarreta, Izaskun

• Publisher: Elsevier
• Year: 2015
• Tongue: English
• Leaves: 828
• Series: Developments in Petroleum Science Volume 64
• Edition: 1
• Category: Library

✦ Synopsis

Core Analysis: A Best Practice Guide is a practical guide to the design of core analysis programs. Written to address the need for an updated set of recommended practices covering special core analysis and geomechanics tests, the book also provides unique insights into data quality control diagnosis and data utilization in reservoir models.

The book's best practices and procedures benefit petrophysicists, geoscientists, reservoir engineers, and production engineers, who will find useful information on core data in reservoir static and dynamic models. It provides a solid understanding of the core analysis procedures and methods used by commercial laboratories, the details of lab data reporting required to create quality control tests, and the diagnostic plots and protocols that can be used to identify suspect or erroneous data.

• Provides a practical overview of core analysis, from coring at the well site to laboratory data acquisition and interpretation
• Defines current best practice in core analysis preparation and test procedures, and the diagnostic tools used to quality control core data
• Provides essential information on design of core analysis programs and to judge the quality and reliability of core analysis data ultimately used in reservoir evaluation
• Of specific interest to those working in core analysis, porosity, relative permeability, and geomechanics

✦ Table of Contents

Content: Front Cover
Core Analysis: A Best Practice Guide
Copyright
Contents
Series Editorś Preface
Preface
Chapter 1: Best Practice in Coring and Core Analysis
1.1. Core Analysis Data: The Foundation of Formation Evaluation
1.2. Core Analysis Data Uncertainty
1.2.1. Reasons and Consequences
1.2.2. Reducing Uncertainty
1.3. Core Analysis Management Framework
1.3.1. Core Analysis Planning and Design
1.3.2. Programme Design Considerations
1.3.3. Core Analysis Focal Points
1.3.4. Real-Time Quality Control
1.4. Best Practice in Core Analysis: An Overview 1.4.1. Coring, Core Handling and Core Processing1.4.2. Sample Preparation
1.4.3. Routine Core Analysis
1.4.4. Special Core Analysis
1.4.5. Geomechanics Tests
1.4.6. Quality Control Procedures and Diagnostics
1.4.7. Example Core Analysis Programmes
1.4.8. Benefits
References
Chapter 2: Wellsite Core Acquisition, Handling and Transportation
2.1. Coring Systems
2.1.1. Conventional Full-Diameter Coring Systems
2.1.2. Wireline-Retrievable Cores
2.1.3. Gel Coring Systems
2.1.4. Liquid and Gas Retention Coring Systems
2.1.4.1. Sponge Coring
2.1.4.2. Liquid Capture Systems 2.1.4.3. Pressure-Retaining Systems2.1.5. Oriented Coring
2.1.6. Sidewall Cores
2.2. Conventional Coring Operations
2.2.1. Health, Safety and Environmental Considerations
2.2.2. Coring Team
2.2.3. Managing Coring Risks
2.3. Coring Fluids
2.3.1. Mud Types
2.3.2. Mud Tracers
2.3.2.1. Water-Soluble Tracers
2.3.2.2. Oil-Soluble Tracers
2.4. Core Damage and Core Fluid/Petrophysical Property Alteration
2.4.1. Fluid Saturation Alteration
2.4.2. Stress Release
2.4.2.1. Pore Pressure Dissipation
2.4.2.2. Shear Failure and Compressive Damage
2.4.3. Wettability Alteration 2.4.3.1. Definition2.4.3.2. Native Reservoir Wettability Controls
2.4.3.2.1. Oil Type/Composition
2.4.3.2.2. Brine Chemistry
2.4.3.2.3. Grain/Mineral Type
2.4.3.3. Wettability Alteration Mechanisms: Drilling Mud
2.4.3.4. Pressure and Temperature Reduction
2.5. Best Practice in Wellsite Handling
2.5.1. Core Recovery on Rig Floor
2.5.2. Linear Layout and Marking
2.5.3. Wellsite Gamma-Ray Scanning
2.5.4. Wellsite Liner Cutting
2.5.5. Wellsite Core Stabilisation and Preservation
2.5.5.1. Freezing
2.5.5.2. Resin Consolidation
2.5.5.3. Foam and Gypsum Stabilisation 2.5.5.4. Gypsum Versus Foam: Advantages and Limitations2.5.6. Wellsite Sampling
2.5.6.1. Reasons for Sampling
2.5.6.2. Sampling Methods
2.5.6.3. Dean-Stark and Water Analysis Plugs
2.5.6.4. Shale Preservation
2.5.7. Core Transportation
2.5.8. Coring Report
2.6. Special Handling Considerations for Difficult Rock Types
2.6.1. Unconsolidated Core
2.6.2. Carbonates
2.6.3. Shaly Sands
2.6.4. Shales
2.6.5. Coal
References
Recommended Reading
Chapter 3: Core Laboratory Processing and Screening
3.1. Introduction
3.2. Core Receipt and Cutting
3.3. CT Scanning
3.4. Gamma Ray Logging