Foundations of rock mechanics in oil and gas engineering [electronic resource] / Yuanfang Cheng, Chuanliang Yan, Zhongying Han.

Intro
Preface
Contents
1 Rock Mechanics and Petroleum Engineering
1.1 General Concepts
1.2 Inherent Complexity of Rock Mechanics
1.2.1 Failure Properties of Rocks
1.2.2 Size Effect
1.2.3 Tensile Strength
1.2.4 Impact of Groundwater
1.2.5 Weathering
1.2.6 Rock Outside Loading
1.3 Rock Mechanics Problems in Oil and Gas Engineering
1.4 History of the Development of Rock Mechanics
References
2 Stress and Strain
2.1 Stress
2.1.1 Stress Vector
2.1.2 Stress Tensor
2.1.3 Stress Equation for Inclined Plane

2.1.4 Stress Coordinate Transformation
2.1.5 Principal Stresses and Principal Directions
2.1.6 Maximum Shear Stress
2.1.7 Stress Mohr Circle
2.1.8 Deviatoric Stress
2.1.9 Equilibrium Differential Equations
2.2 Strain
2.2.1 The Concepts of Deformation and Strain
2.2.2 Geometric Equations
2.2.3 State of Strain
References
3 Rock Composition and Physical Properties
3.1 Origin of Rock
3.2 Effect of Rock Structure on Strength
3.2.1 The Influence of Rock Composition on Rock Strength
3.2.2 Influence of the Structure and Tectonics of the Rock on Strength

3.3 Basic Physical Properties of Rocks
3.3.1 Bulk Density of Rocks
3.3.2 Porosity of the Rock
3.3.3 Permeability of the Rock
3.3.4 Water Content of the Rock
3.3.5 Particle Size Composition and Specific Surface Area of Rocks
3.3.6 Acoustic Properties of Rocks
References
4 Strength and Deformation Characteristics of Rocks
4.1 Mechanical Properties of Rocks at Ambient Temperature and Pressure
4.2 Effect of Confining Pressure and Intermediate Principal Stress on Mechanical Properties of Rocks
4.3 Effect of Temperature on Mechanical Properties of Rocks

4.4 Effect of Pore Pressure on Mechanical Properties of Rocks
4.5 Effect of Strain Rate on Mechanical Properties of Rocks
References
5 Characterization and Indoor Determination of the Strength of Rocks
5.1 Types of Tock Damage and Destruction
5.1.1 Preparation of Rock Samples
5.1.2 Types of Rock Damage
5.2 Compressive Strength of Rocks and Its Influencing Factors
5.2.1 Compressive Strength of Rocks
5.2.2 The Influencing Factors of Compressive Strength
5.3 Tensile Strength of Rocks and Its Influencing Factors
5.3.1 Direct Stretching Method

5.3.2 Indirect Stretching Method
5.4 Shear Strength of Rocks and Its Influencing Factors
5.4.1 Direct Shear Experiment
5.4.2 Rock Triaxial Experiments
5.4.3 Rock Shear Experiments at the Mine Site
References
6 Rock Strength Failure Criterion
6.1 Coulomb Failure Criterion
6.2 Mohr Failure Criterion
6.3 Failure Criterion for Rock Formations with Weak Planes
6.4 Griffith Criterion
6.4.1 Griffith Criterion Derivation
6.4.2 Modified Griffith Criterion
References
7 In-Situ Stress States
7.1 Description of In-Situ Stress State