Foreword |
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xiii | |
Preface I |
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xv | |
Preface II |
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xvii | |
Capsule summary |
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xix | |
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1 | (14) |
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1.1 Current status and significance of volcanic gas reservoir development |
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1 | (2) |
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1.1.1 Resources of volcanic gas reservoirs and development status in the world |
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1 | (1) |
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1.1.2 Resources and development status of volcanic gas reservoirs in China |
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2 | (1) |
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1.1.3 Significance of volcanic gas reservoir development |
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2 | (1) |
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1.2 Geological features of volcanic gas reservoirs and challenges in reservoir characterization |
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3 | (5) |
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1.2.1 Geological features of volcanic gas reservoirs |
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3 | (1) |
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1.2.2 Challenges in volcanic gas reservoir characterization |
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4 | (4) |
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1.3 Significance of volcanic gas reservoir characterization and its technical concept |
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8 | (7) |
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1.3.1 Significance of volcanic gas reservoir characterization |
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8 | (1) |
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1.3.2 Technical concept of volcanic gas reservoir characterization |
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9 | (2) |
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1.3.3 Techniques of volcanic gas reservoir characterization |
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11 | (2) |
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13 | (2) |
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Chapter 2 Internal Architecture of Volcanic Gas Reservoirs |
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15 | (62) |
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2.1 Concept and levels of volcanic rock internal architecture |
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15 | (3) |
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2.1.1 Concept of volcanic rock internal architecture |
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15 | (1) |
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2.1.2 Levels of volcanic rock internal architecture |
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15 | (3) |
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2.2 Challenges and technical concepts for dissecting volcanic rock internal architecture |
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18 | (3) |
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2.2.1 Challenges in dissecting volcanic rock internal architecture |
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18 | (1) |
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2.2.2 Technical concepts for dissecting volcanic rock internal architecture |
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19 | (2) |
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2.3 Identification and characterization of volcanic rock formation |
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21 | (12) |
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2.3.1 Identification of volcanic rock formation |
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21 | (10) |
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2.3.2 Characterization of volcanic formation |
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31 | (2) |
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2.4 Identification and characterization of a volcanic edifice |
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33 | (26) |
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2.4.1 Volcanic edifice classification |
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33 | (3) |
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2.4.2 Identification of a volcanic edifice |
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36 | (16) |
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2.4.3 Characterization of volcanic edifices |
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52 | (7) |
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2.5 Identification and characterization of a volcanic massif |
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59 | (14) |
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2.5.1 Classification of volcanic massifs |
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59 | (1) |
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2.5.2 Identification of volcanic massifs |
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59 | (8) |
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2.5.3 Characterization of volcanic massifs |
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67 | (6) |
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2.6 Technical applications |
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73 | (4) |
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2.6.1 Providing guidance for a logical division of development layer series |
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73 | (1) |
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2.6.2 Effectively predicting reservoir distribution to construct geological models |
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73 | (1) |
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2.6.3 Providing a basis for an appropriate analysis of gas-water relationship |
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73 | (1) |
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74 | (3) |
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Chapter 3 Volcanic Rock Sequence Division and Stratigraphic Correlation |
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77 | (36) |
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3.1 Concept and levels of volcanic rock sequence |
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77 | (3) |
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3.1.1 Concept of volcanic rock sequence |
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77 | (1) |
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3.1.2 Levels of volcanic rock sequences |
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78 | (2) |
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3.2 Challenges and technical solutions |
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80 | (2) |
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80 | (1) |
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3.2.2 Technical solutions |
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80 | (2) |
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3.3 Volcanic rock sequence identification |
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82 | (19) |
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3.3.1 Identification markers |
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82 | (12) |
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3.3.2 Single-well identification |
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94 | (2) |
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3.3.3 Profile identification |
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96 | (5) |
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3.4 Volcanic rock sequence division and stratigraphic correlation |
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101 | (12) |
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3.4.1 Corresponding relationships among volcanic rock sequence, internal architecture, and gas-bearing zone |
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101 | (2) |
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3.4.2 Correlation of volcanic rock sequence |
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103 | (1) |
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3.4.3 Volcanic rock sequence division and stratigraphic correlation |
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104 | (7) |
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111 | (2) |
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Chapter 4 Identification and Prediction of Volcanic Facies |
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113 | (50) |
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4.1 Classification of volcanic facies |
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113 | (5) |
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4.1.1 Classification of lithofacies |
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113 | (1) |
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114 | (4) |
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4.2 Research challenges and technical solutions |
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118 | (2) |
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4.2.1 Research challenges |
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118 | (1) |
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4.2.2 Technical solutions |
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119 | (1) |
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4.3 Single-well identification and classification |
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120 | (15) |
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4.3.1 Identification markers |
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120 | (10) |
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4.3.2 Single-well facies identification |
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130 | (5) |
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4.4 Profile identification |
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135 | (4) |
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4.4.1 Seismic response characteristics |
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135 | (2) |
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4.4.2 Profile facies identification |
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137 | (2) |
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139 | (6) |
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4.5.1 Planar facies prediction based on single-well facies |
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139 | (1) |
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4.5.2 Predicting planar facies patterns based on profile facies |
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140 | (1) |
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4.5.3 Predicting planar facies distribution based on seismic facies |
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141 | (4) |
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145 | (2) |
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4.6.1 Profile tracing closure technique |
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145 | (1) |
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4.6.2 Integrative technique for lithofacies analysis by stratigraphic slicing |
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146 | (1) |
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4.6.3 Technique for 3D attribute volume analysis |
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147 | (1) |
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4.7 Characterization of volcanic facies |
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147 | (13) |
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4.7.1 Characterization of volcanic facies geometry (shape) |
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147 | (5) |
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4.7.2 Characterizing volcanic facies size |
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152 | (3) |
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4.7.3 Characterizing superposition relationships of volcanic facies |
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155 | (5) |
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4.8 Technological applications and effects |
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160 | (3) |
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4.8.1 Revealing lithofacies distribution and predicting favorable facies |
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160 | (1) |
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4.8.2 Ascertaining the spatial distribution of lithofacies and providing facies control constraints for geological model building |
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160 | (2) |
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162 | (1) |
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Chapter 5 Lithological Identification and Prediction of Volcanic Rock |
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163 | (40) |
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5.1 Challenges and solutions |
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163 | (3) |
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5.1.1 Challenges in lithology identification and prediction |
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163 | (1) |
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5.1.2 Technical solutions |
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164 | (2) |
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5.2 Identification of volcanic lithology |
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166 | (17) |
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5.2.1 Identification of volcanic rock composition through ECS logging |
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166 | (3) |
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5.2.2 Identification of volcanic rock texture and structure by imaging log |
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169 | (5) |
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5.2.3 Identification of volcanic rock types by conventional logging |
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174 | (6) |
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5.2.4 Integrated lithological identification |
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180 | (3) |
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5.3 Prediction of volcanic lithological distribution |
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183 | (15) |
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5.3.1 Seismic response characteristics of different lithologies |
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183 | (3) |
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5.3.2 Prediction of lithological distribution through seismic profile analysis |
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186 | (3) |
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5.3.3 Prediction of lithological distribution by seismic waveform classification |
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189 | (2) |
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5.3.4 Prediction of lithological distribution by frequency-divided inversion |
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191 | (7) |
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198 | (5) |
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5.4.1 Identification of lithology to guide lithofacies delineation in single wells |
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198 | (1) |
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5.4.2 Building reservoir parameter interpretation models for different lithologies to improve parameter interpretation accuracy |
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198 | (1) |
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5.4.3 Providing a lithological basis for the establishment of gas and water layer identification models and to improve the congruence rate of identification |
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198 | (3) |
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5.4.4 Delineating lithological distribution patterns to guide the prediction of favorable reservoir zones |
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201 | (1) |
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201 | (2) |
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Chapter 6 Identification and Prediction of Fractures in Volcanic Reservoirs |
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203 | (70) |
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6.1 Research challenges and technical solutions |
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203 | (3) |
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6.1.1 Challenges in fracture identification and prediction |
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203 | (1) |
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6.1.2 Research approaches and solutions |
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204 | (2) |
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6.2 Identification of fractures in volcanic reservoirs |
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206 | (20) |
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6.2.1 Identification of fractures based on imaging logs |
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206 | (5) |
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6.2.2 Identification of fractures through conventional logging |
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211 | (12) |
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6.2.3 Comprehensive identification of volcanic fractures in wells |
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223 | (3) |
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6.3 Interpretation and evaluation of volcanic reservoir fracture parameters |
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226 | (13) |
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6.3.1 Interpretation of fracture parameters |
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226 | (3) |
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6.3.2 Evaluation of fracture development |
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229 | (3) |
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6.3.3 Evaluation of fracture effectiveness |
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232 | (4) |
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6.3.4 Evaluation of fracture occurrence (configuration) |
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236 | (3) |
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6.4 Prediction of fractures in volcanic reservoirs |
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239 | (31) |
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6.4.1 Seismic response characteristics of fractures |
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240 | (1) |
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6.4.2 Method of post-stack seismic attribute analysis |
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241 | (11) |
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6.4.3 Prestack fracture prediction method |
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252 | (11) |
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6.4.4 Fracture parameter inversion methods |
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263 | (2) |
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6.4.5 Methods for optimization of volcanic reservoir fracture prediction |
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265 | (5) |
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6.5 Technological applications |
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270 | (3) |
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6.5.1 Prediction of favorable reservoir zone in volcanic gas reservoirs |
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270 | (1) |
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6.5.2 Well location optimization |
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270 | (1) |
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6.5.3 Determination of vertical distribution of fractures for analysis of bottom water coning |
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270 | (1) |
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270 | (3) |
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Chapter 7 Parameter Interpretation for Fractured Volcanic Reservoirs |
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273 | (40) |
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7.1 Challenges in parameter interpretation and technical solutions |
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273 | (3) |
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7.1.1 Challenges in interpretation of volcanic reservoir parameters |
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273 | (1) |
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7.1.2 Solutions and technical approaches |
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274 | (2) |
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7.2 Preprocessing of log data |
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276 | (2) |
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276 | (1) |
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7.2.2 Core-depth adjustment and repositioning |
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277 | (1) |
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7.2.3 Normalization of logging curves |
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277 | (1) |
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7.3 Interpretation of the porosity of volcanic reservoirs |
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278 | (16) |
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7.3.1 Conceptual model for porosity calculation |
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278 | (2) |
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7.3.2 Determination of matrix parameters in volcanic rocks |
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280 | (5) |
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7.3.3 Effective porosity in matrix |
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285 | (9) |
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294 | (1) |
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7.4 Interpretation of permeability in volcanic reservoirs |
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294 | (5) |
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7.4.1 Matrix permeability |
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295 | (4) |
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299 | (1) |
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7.5 Techniques of gas saturation interpretation for volcanic rocks |
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299 | (10) |
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7.5.1 Mechanisms of electrical conductivity in volcanic rocks |
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299 | (4) |
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7.5.2 Gas saturation in rock matrix |
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303 | (6) |
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7.5.3 Original gas saturation in fractures and cavities |
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309 | (1) |
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7.6 Technical applications |
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309 | (4) |
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7.6.1 Providing parameters for reservoir classification and evaluation and reserve calculation |
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310 | (1) |
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7.6.2 Facilitating the construction of geological attribute models and fluid models |
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310 | (2) |
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312 | (1) |
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Chapter 8 Identification of Gas and Water Zones in Volcanic Gas Reservoirs |
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313 | (34) |
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8.1 Research challenges and technical solutions |
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313 | (2) |
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8.1.1 Challenges in the identification of gas and water zones in volcanic rocks |
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313 | (1) |
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8.1.2 Technical solutions |
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313 | (2) |
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8.2 Geological logging and formation test identification |
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315 | (3) |
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8.2.1 Geological logging methods for identifying gas and water zones |
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315 | (2) |
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8.2.2 Formation test method for identifying gas and water zones |
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317 | (1) |
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8.3 Well logging identification techniques |
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318 | (20) |
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8.3.1 Nuclear magnetic logging identification techniques |
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320 | (4) |
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8.3.2 Acoustic logging identification technique |
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324 | (5) |
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8.3.3 Array induction logging identification technique |
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329 | (2) |
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8.3.4 Conventional well log-based identification technique |
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331 | (7) |
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8.4 Volcanic gas layer and water zone identification: the comprehensive approach |
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338 | (9) |
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8.4.1 Establishment of gas-bearing property profiles for single wells by integrating single-well data |
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340 | (1) |
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8.4.2 Further characterization of gas-bearing properties for target layers through multiwell correlation |
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341 | (4) |
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8.4.3 Validating interpretation results through formation tests and improving interpretation models, providing a basis for the interpretation of new wells |
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345 | (1) |
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345 | (2) |
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Chapter 9 Effective Reservoir Identification and Prediction |
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347 | (46) |
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9.1 Research challenges and technical solutions |
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347 | (2) |
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9.1.1 Challenges in the identification and prediction of effective reservoirs |
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347 | (1) |
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9.1.2 Technical solutions |
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348 | (1) |
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9.2 Identification of effective volcanic reservoirs |
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349 | (28) |
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9.2.1 Qualitative identification of effective reservoirs |
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349 | (13) |
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9.2.2 Quantitative identification of effective reservoirs |
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362 | (15) |
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9.3 Prediction of effective volcanic reservoirs |
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377 | (11) |
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9.3.1 Seismic response characteristics of effective volcanic reservoirs |
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379 | (3) |
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9.3.2 Classification and prediction techniques for effective volcanic reservoirs |
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382 | (6) |
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388 | (5) |
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9.4.1 Optimizing well location and improving the success rate of development well placement |
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388 | (2) |
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9.4.2 Optimizing well trajectory design and improving the reservoir encounter ratio of horizontal wells |
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390 | (1) |
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390 | (3) |
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Chapter 10 Characterization of Accumulation-Permeation Units in Volcanic Gas Reservoirs |
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393 | (64) |
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10.1 Concept and characterization of accumulation-permeation units |
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393 | (4) |
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10.1.1 Concept of the accumulation-permeation unit |
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393 | (2) |
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10.1.2 Challenges in characterizing accumulation-permeation units (A-P units) |
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395 | (1) |
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10.1.3 Technical solutions |
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395 | (2) |
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10.2 Identification and prediction of accumulation-permeation units |
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397 | (31) |
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10.2.1 Single-well identification |
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397 | (15) |
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10.2.2 Profile identification |
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412 | (11) |
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10.2.3 Prediction of planar distribution |
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423 | (4) |
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10.2.4 Prediction of spatial distribution |
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427 | (1) |
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10.3 Characterization of accumulation-permeation units |
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428 | (22) |
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10.3.1 Characterization of geometry and scale |
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428 | (8) |
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10.3.2 Connectivity characterization |
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436 | (6) |
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10.3.3 Characterization of accumulation-permeation (A-P) capacity |
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442 | (5) |
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10.3.4 Distribution of volcanic accumulation-permeation (A-P) units |
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447 | (3) |
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450 | (7) |
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10.4.1 Revealing the planar distribution of A-P units to guide the optimization of well location |
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450 | (3) |
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10.4.2 Optimizing horizontal well trajectory design under the guidance of the spatial distribution of A-P units |
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453 | (1) |
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10.4.3 Guiding well-controlled dynamic reserve evaluation based on the scale and A-P capacity of A-P units |
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453 | (2) |
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455 | (2) |
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Chapter 11 Characterization of Microstructures of Volcanic Gas Reservoirs |
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457 | (86) |
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11.1 Challenges and solutions |
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457 | (3) |
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11.1.1 Challenges in characterizing volcanic reservoir microstructures |
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457 | (1) |
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11.1.2 Technical solutions and approaches |
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458 | (2) |
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11.2 Characterization of reservoir spaces in volcanic gas reservoirs |
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460 | (29) |
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11.2.1 Classification of reservoir spaces in volcanic gas reservoirs |
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460 | (3) |
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11.2.2 Identification of reservoir spaces in volcanic gas reservoirs |
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463 | (12) |
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11.2.3 Characterization of reservoir spaces in volcanic gas reservoirs |
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475 | (14) |
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11.3 Characterization of throats in volcanic gas reservoirs |
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489 | (19) |
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11.3.1 Classification of throats in volcanic gas reservoirs |
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489 | (4) |
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11.3.2 Identification of throats in volcanic gas reservoirs |
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493 | (5) |
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11.3.3 Characterization of throats in volcanic reservoirs |
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498 | (10) |
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11.4 Characterization of accumulation-permeation patterns in volcanic reservoirs |
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508 | (17) |
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11.4.1 Classification of accumulation-permeation patterns in volcanic gas reservoirs |
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509 | (4) |
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11.4.2 Characterization of accumulation-permeation (A-P) patterns in volcanic gas reservoirs |
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513 | (12) |
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11.5 Characterization of the microproducing capacity for volcanic gas reservoirs |
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525 | (18) |
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11.5.1 Throat cutoff thresholds of volcanic gas reservoirs |
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526 | (7) |
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11.5.2 Permeability cutoff and permeability classification in volcanic gas reservoirs |
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533 | (1) |
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11.5.3 Characterization of effective pore volume in volcanic gas reservoirs |
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533 | (3) |
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11.5.4 Characterization of the microproducing capacity of volcanic gas reservoirs |
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536 | (4) |
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540 | (3) |
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Chapter 12 Geological Modeling for Volcanic Gas Reservoirs |
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543 | (22) |
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12.1 Challenges in model building and technical solutions |
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543 | (4) |
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12.1.1 Geological characteristics and challenges in geological model building |
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543 | (2) |
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12.1.2 Technical solutions |
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545 | (2) |
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12.2 Geological model building for volcanic gas reservoirs |
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547 | (15) |
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12.2.1 Multilevel structural model building techniques |
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547 | (3) |
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12.2.2 Multilevel reservoir framework model building technique |
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550 | (5) |
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12.2.3 Attribute model building constrained by framework models |
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555 | (6) |
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12.2.4 Fluid distribution model building under architectural control |
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561 | (1) |
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12.3 Applications and results |
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562 | (3) |
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12.3.1 Evaluating original gas in place (OGIP) of gas reservoirs |
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562 | (1) |
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12.3.2 Guiding well location optimization and horizontal well trajectory design |
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563 | (1) |
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12.3.3 Providing digital models for numerical simulation |
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563 | (1) |
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563 | (2) |
Index |
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565 | |