Page 7 - Well Logging and Formation Evaluation
P. 7
vi Contents
5 Advanced Log Interpretation Techniques 67
5.1 Shaly Sand Analysis 67
5.2 Carbonates 73
5.3 Multi-Mineral/Statistical Models 74
5.4 NMR Logging 76
5.5 Fuzzy Logic 85
5.6 Thin Beds 87
5.7 Thermal Decay Neutron Interpretation 93
5.8 Error Analyses 96
5.9 Borehole Corrections 101
6 Integration with Seismic 103
6.1 Synthetic Seismograms 103
6.2 Fluid Replacement Modelling 108
6.3 Acoustic/Elastic Impedance Modelling 110
7 Rock Mechanics Issues 115
8 Value Of Information 119
9 Equity Determinations 125
9.1 Basis for Equity Determination 126
9.2 Procedures/Timing for Equity Determination 127
9.3 The Role of the Petrophysicist 129
10 Production Geology Issues 137
10.1 Understanding Geological Maps 140
10.2 Basic Geological Concepts 147
11 Reservoir Engineering Issues 155
11.1 Behavior of Gases 155
11.2 Behavior of Oil/Wet Gas Reservoirs 159
11.3 Material Balance 162
11.4 Darcy’s Law 163
11.5 Well Testing 166
12 Homing-in Techniques 171
12.1 Magnetostatic Homing-in 171
12.2 Electromagnetic Homing-in 185
13 Well Deviation, Surveying, and Geosteering 193
13.1 Well Deviation 193
13.2 Surveying 195
