The first edition of this book demystified the process of well log analysis for students, researchers and practitioners. In the two decades since, the industry has changed enormously: technical staffs are smaller, and hydrocarbons are harder to locate, quantify, and produce. New drilling techniques have engendered new measurement devices incorporated into the drilling string. Corporate restructuring and the "graying" of the workforce have caused a scarcity in technical competence involved in the search and exploitation of petroleum. The updated 2nd Edition reviews logging measurement technology developed in the last twenty years, and expands the petrophysical applications of the measurements.
Erratum.- An Overview of Well Logging.- to Well Log Interpretation: Finding the Hydrocarbon.- Basic Resistivity and Spontaneous Potential.- Empiricism: The Cornerstone of Interpretation.- Resistivity: Electrode Devices and How They Evolved.- Other Electrode and Toroid Devices.- Resistivity: Induction Devices.- Multi-Array and Triaxial Induction Devices.- Propagation Measurements.- Basic Nuclear Physics for Logging Applications: Gamma Rays.- Gamma Ray Devices.- Gamma Ray Scattering and Absorption Measurements.- Basic Neutron Physics for Logging Applications.- Neutron Porosity Devices.- Pulsed Neutron Devices and Spectroscopy.- Nuclear Magnetic Logging.- to Acoustic Logging.- Acoustic Waves in Porous Rocks and Boreholes.- Acoustic Logging Methods.- High Angle and Horizontal Wells.- Clay Quantification.- Lithology and Porosity Estimation.- Saturation and Permeability Estimation.