Gas Hydrates 2: Geoscience Issues and Potential Industrial Applications [Hardcover]

Gas hydrates in their natural environment and for potential industrial applications (Volume 2).

Preface xi
Livio RUFFINE, Daniel BROSETA and Arnaud DESMEDT

Part 1 Field study and laboratory experiments of hydrate-bearing sediments 1

Introduction to Part 1 3
Livio RUFFINE

Chapter 1 Water Column Acoustics:Remote Detection of Gas Seeps 11
Carla SCALABRIN and Stéphanie DUPRÉ

1.1 Introduction 11

1.2 Principle of the measurement 14

1.2.1 Instrumentations 14

1.2.2 Qualitative and quantitative measurements 14

1.3 Bibliography 18

Chapter 2 Geophysical Approach 21
Bruno MARSSET

2.1 Introduction 21

2.2 Overview 21

2.3 Seismic processing 23

2.3.1 Positioning phase 23

2.3.2 Preprocessing phase 24

2.3.3 Processing phase 25

2.4 Example of gas hydrate exploration: the SYSIF instrument 28

2.5 Bibliography 29

Chapter 3 Hydrate Seismic Detection 31
Stephan KER

3.1 Wave velocities of hydrate-bearing sediments 32

3.1.1 Empirical equations 32

3.1.2 Effective medium theories 33

3.2 Bibliography 34

Chapter 4 Geomorphology of Gas Hydrate-Bearing Pockmark 37
Vincent RIBOULOT

4.1 Introduction 37

4.2 Generalities about pockmarks 38

4.3 Impact of gas hydrate on seafloor deformation 39

4.4 Morlól