Porous rock fracture mechanics : with application to hydraulic fracturing, drilling and structural engineering

Content: Front Cover
 Porous Rock Fracture Mechanics
 Copyright Page
 Dedication
 Contents
 List of contributors
 Preface
 Introduction
 Rocks fracture mechanics
 Scale effects on fracture behavior
 Effect of tensile and compressive stress fields on rocks' fracture mechanics
 Rock fracture mechanisms and fluid effects
 Environmental effects
 Time effect on rocks' failure behavior
 I. Introduction
 1 Application of rock failure simulation in design optimization of the hydraulic fracturing
 1.1 Introduction
 1.2 Reservoir stimulation by hydraulic fracturing of horizontal wells 1.3 Hydraulic fracturing conceptual models1.3.1 Rock failure and the stimulated volume
 1.4 Mechanical interactions of multiple hydraulic fractures
 1.4.1 Some insights on hydraulic fracture spacing optimization using numerical simulations
 1.4.2 The role of rock fabric and structure
 1.4.2.1 Role of rock anisotropy
 1.4.2.2 Influence of natural fractures on hydraulic fractures
 1.4.3 The importance of 3D effects
 1.5 Conclusions
 References
 II. Coupled Fluid Structural Deformation and Fracture Mechanisms in Porous 2 Anisotropic poroplasticity in saturated porous media, effect of confining pressure, and elevated temperature2.1 Introduction
 2.2 General framework of poroplastic modeling
 2.2.1 Effective stress concept in poroplasticity
 2.3 Experimental investigation on a typical porous rock
 2.4 Anisotropic plastic behavior of rocks
 2.5 Effects of temperature on anisotropic rocks
 2.6 Conclusions
 References
 3 Coupling in hydraulic fracturing simulation
 3.1 Introduction: fluid-driven fracture propagation in rocks
 3.2 Coupling in reservoir geomechanics
 3.3 Fracture-matrix fluid exchange ("leakoff") 3.4 Coupling fluid and solid3.5 Coupling proppant transport and placement
 3.6 Thermal coupling
 3.7 Coupling in acid fracturing
 3.8 Conclusion
 References
 4 Stress-induced permeability evolutions and erosion damage of porous rocks
 4.1 Introduction
 4.2 Laboratory tests
 4.2.1 Steady and transient permeability tests of sandstone under triaxial compression
 4.2.1.1 Steady permeability tests
 4.2.1.2 Transient pulse tests
 4.2.2 Hydro-mechanical-chemical coupling behavior of sandstone
 4.2.2.1 Creep tests with injection of CO2 alone and CO2-brine solution Creep tests with injection of CO2 aloneCreep tests with injection of CO2-brine
 4.2.2.2 Indentation tests on samples after CO2-brine-rock reaction
 4.3 Numerical simulations of hydro-mechanical-chemical coupling behavior
 4.3.1 General framework
 4.3.2 Special model for sandstone
 4.3.2.1 Mechanical modeling
 4.3.2.2 Mass-transfer modeling
 4.3.2.3 Porosity evolution and chemical damage
 4.3.2.4 Poromechanical modeling
 4.3.3 Numerical application
 4.3.3.1 Simulation of chemical dissolution process
 4.3.3.2 Simulation of mechanical behavior