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Borehole Acoustic Logging - Theory and Methods (Paperback, 1st ed. 2020)
Loot Price: R4,359
Discovery Miles 43 590
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Borehole Acoustic Logging - Theory and Methods (Paperback, 1st ed. 2020)
Series: Petroleum Engineering
Expected to ship within 10 - 15 working days
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This book covers the principles, historical development, and
applications of many acoustic logging methods, including acoustic
logging-while-drilling and cased-hole logging methods. Benefiting
from the rapid development of information technology, the
subsurface energy resource industry is moving toward data
integration to increase the efficiency of decision making through
the use of advanced big data and artificial intelligence
technologies, such as machine/deep learning. However, wellbore
failure may happen if evaluations of risk and infrastructure are
made using data mining methods without a complete understanding of
the physics of borehole measurements. Processed results from
borehole acoustic logging will constitute part of the input data
used for data integration. Therefore, to successfully employ modern
techniques for data assimilation and analysis, one must fully
understand the complexity of wave mode propagation, how such
propagation is influenced by the well, and the materials placed
within the well (i.e., the cement, casing, and drill strings), and
ultimately how waves penetrate into and are influenced by
geological formations. State-of-the-art simulation methods, such as
the discrete wavenumber integration method (DWM) and the finite
difference method (FDM), are introduced to tackle the numerical
challenges associated with models containing large material
contrasts, such as the contrasts between borehole fluids and steel
casings. Waveforms and pressure snapshots are shown to help the
reader understand the wavefields under various conditions. Advanced
data processing methods, including velocity analyses within the
time and frequency domains, are utilized to extract the velocities
of different modes. Furthermore, the authors discuss how various
formation parameters influence the waveforms recorded in the
borehole and describe the principles of both existing and potential
tool designs and data acquisition schemes. This book greatly
benefits from the research and knowledge generated over four
decades at the Earth Resources Laboratory (ERL) of the
Massachusetts Institute of Technology (MIT) under its acoustic
logging program. Given its scope, the book is of interest to
geophysicists (including borehole geophysicists and seismologists),
petrophysicists, and petroleum engineers who are interested in
formation evaluation and cementation conditions. In addition, this
book is of interest to researchers in the acoustic sciences and to
4th-year undergraduate and postgraduate students in the areas of
geophysics and acoustical physics.
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