Page 8 - Reservoir Geomechanics

Contents

Preface page xi

PART I: BASIC PRINCIPLES

1 The tectonic stress field 3

Why stress is important 3
Stress in the earth’s crust 4
Basic definitions 5
Relative stress magnitudes and E. M. Anderson’s classification scheme 8
Stress magnitudes at depth 12
Measuring in situ stress 14
Indicators of contemporary stress orientation and relative magnitude 16
Regional stress patterns 18
Frictionless interfaces 24

2 Pore pressure at depth in sedimentary basins 27

Basic definitions 27
Reservoir compartmentalization 29
Mechanisms of overpressure generation 40
Estimating pore pressure at depth 44

3 Basic constitutive laws 56

Linear elasticity 61
Elastic moduli and seismic wave velocity 63
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