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1 | (6) |
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2 | (2) |
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4 | (1) |
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4 | (3) |
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2 Modeling Production from Shale |
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7 | (22) |
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2.1 Reservoir Modeling of Shale |
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9 | (1) |
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2.2 System of Natural Fracture Networks |
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10 | (3) |
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2.3 System of Natural Fracture Networks in Shale |
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13 | (1) |
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2.4 A New Hypothesis on Natural Fractures in Shale |
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14 | (2) |
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2.5 Consequences of Shale SNFN |
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16 | (2) |
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2.6 "Hard Data" Versus "Soft Data" |
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18 | (1) |
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2.7 Current State of Reservoir Simulation and Modeling of Shale |
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19 | (3) |
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2.7.1 Decline Curve Analysis |
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20 | (1) |
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2.7.2 Rate Transient Analysis |
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21 | (1) |
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2.8 Explicit Hydraulic Fracture Modeling |
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22 | (2) |
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2.9 Stimulated Reservoir Volume |
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24 | (3) |
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27 | (2) |
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29 | (54) |
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3.1 Artificial Intelligence |
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33 | (1) |
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33 | (2) |
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3.2.1 Steps Involved in Data Mining |
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34 | (1) |
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3.3 Artificial Neural Networks |
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35 | (20) |
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3.3.1 Structure of a Neural Network |
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36 | (2) |
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3.3.2 Mechanics of Neural Networks Operation |
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38 | (3) |
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3.3.3 Practical Considerations During the Training of a Neural Network |
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41 | (14) |
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55 | (7) |
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57 | (2) |
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3.4.2 Approximate Reasoning |
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59 | (1) |
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60 | (2) |
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3.5 Evolutionary Optimization |
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62 | (4) |
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63 | (1) |
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3.5.2 Mechanism of a Genetic Algorithm |
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64 | (2) |
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66 | (2) |
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3.7 Fuzzy Cluster Analysis |
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68 | (2) |
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3.8 Supervised Fuzzy Cluster Analysis |
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70 | (13) |
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3.8.1 Well Quality Analysis (WQA) |
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71 | (3) |
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3.8.2 Fuzzy Pattern Recognition |
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74 | (9) |
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4 Practical Considerations |
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83 | (8) |
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4.1 Role of Physics and Geology |
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84 | (1) |
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4.2 Correlation is not the Same as Causation |
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84 | (2) |
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4.3 Quality Control and Quality Assurance of the Data |
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86 | (5) |
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5 Which Parameters Control Production from Shale |
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91 | (18) |
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92 | (1) |
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5.2 Shale Formation Quality |
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93 | (5) |
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98 | (1) |
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5.4 Impact of Completion and Formation Parameters |
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98 | (8) |
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5.4.1 Results of Pattern Recognition Analysis |
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99 | (3) |
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5.4.2 Influence of Completion Parameters |
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102 | (4) |
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5.4.3 Important Notes on the Results and Discussion |
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106 | (1) |
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5.5 Chapter Conclusion and Closing Remarks |
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106 | (3) |
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6 Synthetic Geomechanical Logs |
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109 | (18) |
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6.1 Geomechanical Properties of Rocks |
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109 | (3) |
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6.1.1 Minimum Horizontal Stress |
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110 | (1) |
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110 | (1) |
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110 | (1) |
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111 | (1) |
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112 | (1) |
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6.2 Geomechanical Well Logs |
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112 | (1) |
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6.3 Synthetic Model Development |
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113 | (11) |
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6.3.1 Synthetic Log Development Strategy |
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115 | (1) |
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6.3.2 Results of the Synthetic Logs |
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116 | (8) |
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6.4 Post-Modeling Analysis |
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124 | (3) |
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7 Extending the Utility of Decline Curve Analysis |
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127 | (26) |
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7.1 Decline Curve Analysis and Its Use in Shale |
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127 | (7) |
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7.1.1 Power Law Exponential Decline |
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129 | (1) |
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7.1.2 Stretched Exponential Decline |
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130 | (1) |
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130 | (2) |
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7.1.4 Tail-End Exponential Decline (TED) |
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132 | (2) |
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7.2 Comparing Different DC A Techniques |
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134 | (6) |
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7.2.1 Is One DCA Technique Better Than the Other? |
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136 | (4) |
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7.3 Extending the Utility of Decline Curve Analysis in Shale |
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140 | (11) |
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7.3.1 Impact of Different Parameters on DCA Technique |
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140 | (2) |
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7.3.2 Conventional Statistical Analysis Versus Shale Analytics |
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142 | (2) |
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7.3.3 More Results of Shale Analytics |
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144 | (7) |
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7.4 Shale Analytics and Decline Curve Analysis |
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151 | (2) |
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8 Shale Production Optimization Technology (SPOT) |
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153 | (76) |
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153 | (2) |
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153 | (1) |
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8.1.2 Hydraulic Fracturing Data |
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154 | (1) |
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8.1.3 Reservoir Characteristics Data |
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154 | (1) |
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8.2 Complexity of Well/Frac Behavior |
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155 | (9) |
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8.3 Well Quality Analysis (WQA) |
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164 | (11) |
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8.4 Fuzzy Pattern Recognition |
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175 | (8) |
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8.5 Key Performance Indicators (KPIs) |
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183 | (14) |
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197 | (4) |
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8.6.1 Training, Calibration, and Validation of the Model |
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197 | (4) |
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201 | (10) |
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8.7.1 Single-Parameter Sensitivity Analysis |
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202 | (6) |
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8.7.2 Combinatorial Sensitivity Analysis |
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208 | (3) |
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8.8 Generating Type Curves |
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211 | (9) |
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220 | (4) |
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8.10 Evaluating Service Companies' Performance |
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224 | (5) |
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9 Shale Numerical Simulation and Smart Proxy |
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229 | (22) |
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9.1 Numerical Simulation of Production from Shale Wells |
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229 | (4) |
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9.1.1 Discrete Natural Fracture Modeling |
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230 | (1) |
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9.1.2 Modeling the Induced Fractures |
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231 | (2) |
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9.2 Case Study: Marcellus Shale |
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233 | (4) |
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9.2.1 Geological (Static) Model |
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233 | (1) |
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234 | (1) |
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235 | (2) |
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237 | (14) |
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9.3.1 A Short Introduction to Smart Proxy |
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237 | (1) |
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9.3.2 Cluster Level Proxy Modeling |
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238 | (2) |
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9.3.3 Model Development (Training and Calibration) |
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240 | (7) |
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9.3.4 Model Validation (Blind Runs) |
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247 | (4) |
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10 Shale Full Field Reservoir Modeling |
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251 | (16) |
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10.1 Introduction to Data-Driven Reservoir Modeling (Top-Down Modeling) |
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253 | (2) |
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10.2 Data from Marcellus Shale |
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255 | (4) |
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10.2.1 Well Construction Data |
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255 | (1) |
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10.2.2 Reservoir Characteristics Data |
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256 | (2) |
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10.2.3 Completion and Stimulation Data |
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258 | (1) |
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258 | (1) |
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10.3 Pre-modeling Data Mining |
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259 | (1) |
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10.4 TDM Model Development |
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260 | (7) |
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10.4.1 Training and Calibration (History Matching) |
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260 | (2) |
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262 | (5) |
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11 Re-stimulation (Re-frac) of Shale Wells |
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267 | (12) |
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11.1 Re-frac Candidate Selection |
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268 | (4) |
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272 | (7) |
Bibliography |
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279 | |