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Resistivity Modeling
 | Propagation, Laterolog and Micro-Pad Analysis By Wilson C. Chin Copyright: 2016 | Status: Published ISBN: 9781118925997 | Hardcover | 316 pages Price: $225.00 USD  |
One Line Description
A petroleum engineer well-known around the world, the author of this latest installment in the “Advances in Petroleum Engineering†series presents cutting-edge new techniques in reservoir engineering, such as resistivity algorithms that model AC coil tool and DC laterolog and micro-pad device response, to facilitate advanced interpretation and “time lapse logging,†integrated with Darcy flow models for saturation via Archie’s law to provide general descriptions for field resistivities which vary with space and time.
Audience
Petrophysicists, well log interpretation specialists, petroleum engineers, reservoir engineers, petroleum geologists, software developers, and students, researchers and faculty in petroleum engineering
Petrophysicists, well log interpretation specialists, petroleum engineers, reservoir engineers, petroleum geologists, software developers, and students, researchers and faculty in petroleum engineering
Description
Resistivity logging represents the cornerstone of modern petroleum exploration, providing a quantitative assessment of hydrocarbon bearing potential in newly discovered oilfields. Resistivity is measured using AC coil tools, as well as by focused DC laterolog and micro-pad devices, and later extrapolated, to provide oil saturation estimates related to economic productivity and cash flow. Interpretation and modeling methods, highly lucrative, are shrouded in secrecy by oil service companies – often these models are incorrect and mistakes perpetuate themselves over time.
This book develops math modeling methods for layered, anisotropic media, providing algorithms, validations and numerous examples. New electric current tracing tools are also constructed which show how well (or poorly) DC tools probe intended anisotropic formations at different dip angles. The approaches discussed provide readers with new insights into the limitations of conventional tools and methods, and offer practical and rigorous solutions to several classes of problems explored in the book.
Traditionally, Archie’s law is used to relate resistivity to water saturation, but only on small core-sample spatial scales. The second half of this book introduces methods to calculate field-wide water saturations using modern Darcy flow approaches, and then, via Archie’s law, develops field-wide resistivity distributions which may vary with time. How large-scale resistivity distributions can be used in more accurate tool interpretation and reservoir characterization is considered at length. The book also develops new methods in “time lapse logging,” where timewise changes to resistivity response (arising from fluid movements) can be used to predict rock and fluid flow properties.
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Resistivity logging represents the cornerstone of modern petroleum exploration, providing a quantitative assessment of hydrocarbon bearing potential in newly discovered oilfields. Resistivity is measured using AC coil tools, as well as by focused DC laterolog and micro-pad devices, and later extrapolated, to provide oil saturation estimates related to economic productivity and cash flow. Interpretation and modeling methods, highly lucrative, are shrouded in secrecy by oil service companies – often these models are incorrect and mistakes perpetuate themselves over time.
This book develops math modeling methods for layered, anisotropic media, providing algorithms, validations and numerous examples. New electric current tracing tools are also constructed which show how well (or poorly) DC tools probe intended anisotropic formations at different dip angles. The approaches discussed provide readers with new insights into the limitations of conventional tools and methods, and offer practical and rigorous solutions to several classes of problems explored in the book.
Traditionally, Archie’s law is used to relate resistivity to water saturation, but only on small core-sample spatial scales. The second half of this book introduces methods to calculate field-wide water saturations using modern Darcy flow approaches, and then, via Archie’s law, develops field-wide resistivity distributions which may vary with time. How large-scale resistivity distributions can be used in more accurate tool interpretation and reservoir characterization is considered at length. The book also develops new methods in “time lapse logging,” where timewise changes to resistivity response (arising from fluid movements) can be used to predict rock and fluid flow properties.
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Supplementary Data
• Detailed numerical models for AC coil resistivity tools and DC laterolog and micro-pad devices
• Rigorous methods and algorithms to trace electric current lines in anisotropic media to evaluate true tool response and focusing in vertical, deviated and horizontal wells
• Predict field resistivities (which vary in space and time) by integrating resistivity and Darcy fluid flow analyses via Archie’s law
• New approaches and examples for “time lapse logging†in which fluid and rock properties are inferred from time-wise changes to resistivity response
• Detailed numerical models for AC coil resistivity tools and DC laterolog and micro-pad devices
• Rigorous methods and algorithms to trace electric current lines in anisotropic media to evaluate true tool response and focusing in vertical, deviated and horizontal wells
• Predict field resistivities (which vary in space and time) by integrating resistivity and Darcy fluid flow analyses via Archie’s law
• New approaches and examples for “time lapse logging†in which fluid and rock properties are inferred from time-wise changes to resistivity response
Author / Editor Details
Wilson C. Chin earned his Ph.D. from M.I.T. and his M.Sc. from Caltech. He has published fifteen books describing his original research in reservoir engineering, formation testing, managed pressure drilling, wave propagation, Measurement While Drilling (MWD) and electromagnetic well logging, over one hundred papers and three dozen patents. Mr. Chin has consulted for well known domestic and international oil and gas corporations, and during the past two decades, won five prestigious research contracts and awards in petroleum exploration and production with the United States Department of Energy.
Wilson C. Chin earned his Ph.D. from M.I.T. and his M.Sc. from Caltech. He has published fifteen books describing his original research in reservoir engineering, formation testing, managed pressure drilling, wave propagation, Measurement While Drilling (MWD) and electromagnetic well logging, over one hundred papers and three dozen patents. Mr. Chin has consulted for well known domestic and international oil and gas corporations, and during the past two decades, won five prestigious research contracts and awards in petroleum exploration and production with the United States Department of Energy.
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