Finding oil and gas from well logs / Lee M. Etnyre
- Etnyre, Lee M., 1937-
- New York : Van Nostrand Reinhold, 
- Copyright Date:
- Physical Description:
- xi, 305 pages : illustrations ; 24 cm
- WELL LOG BASICS: What is a well log? -- What is well log interpretation? -- Who needs to know how to interpret well logs? -- Characteristics of well log measurements -- Core measurements -- Hydrocarbon reserve estimation -- POROSITY AND SATURATION: Porosity in sandstones -- Porosity in carbonates -- Computational problems with porosity averages -- Saturation -- Darcy's law -- Capillary pressure -- FORMATION FACTOR AND WATER SATURATION: Resistivity as a rock property -- Solving problems of resistivity versus temperature or salinity -- Formation factor -- Resistivity index -- BOREHOLE ACOUSTIC WAVEFORM LOGGING: Sonic log operation -- Acoustic waveforms and borehole events -- Relating travel time to porosity -- Sonic log presentation -- Practical considerations and sonic log accuracy -- Compensation for borehole effects -- Cement bond evaluation and other sonic log applications -- Correlating sonic log data to core data -- Rock typing with the sonic log -- ELECTRICAL PROPERTIES (INDUCTION) LOGGING: Resistivity -- Induction logging -- Induction log corrections -- Induction quadrature signal tools -- Further study of induction logs -- ELECTRICAL PROPERTIES (FOCUSED CURRENT AND SPONTANEOUS POTENTIAL) LOGGING: Focused current resistivity tools -- Corrections for focused current resistivity tools -- Problems with focused current resistivity devices -- Flushed zone logging -- Spontaneous potential logging -- RADIOACTIVITY LOGGING: Types of radiation -- Half-life -- Induced nuclear reactions -- Time constant, accuracy, and precision -- Natural gamma ray logging -- Density (gamma-gamma) logging -- Photoelectric effect logging -- Neutron porosity logging -- Neutron-density log combination -- Other radioactive property logging devices.
- Bibliography Note:
- Includes bibliographies and index.
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