Electromagnetic Well Logging
Models for MWD / LWD Interpretation and Tool Design
Wilson Chin
- Mathematically
- rigorous,
- computationally
- fast,
- and
- easy
- to
- use,
- this
- new
- approach
- to
- electromagnetic
- well
- logging
- gives
- the
- reservoir
- engineer
- a
- new
- dimension
- to
- MWD/LWD
- interpretation
- and
- tool
- designAlmost
- all
- publications
- on
- borehole
- electromagnetics
- deal
- with
- idealizations
- that
- are
- not
- acceptable
- physically.
- On
- the
- other
- hand,
- “exact
- models”
- are
- only
- available
- through
- detailed
- finite
- element
- or
- finite
- difference
- analysis,
- and
- more
- often
- than
- not,
- simply
- describe
- case
- studies
- for
- special
- applications.
- In
- either
- case,
- the
- models
- are
- not
- available
- for
- general
- use
- and
- the
- value
- of
- the
- publications
- is
- questionable.This
- new
- approach
- provides
- a
- rigorous,
- fully
- three-dimensional
- solution
- to
- the
- general
- problem,
- developed
- over
- almost
- two
- decades
- by
- a
- researcher
- familiar
- with
- practical
- applications
- and
- mathematical
- modeling.
- Completely
- validated
- against
- exact
- solutions
- and
- physics-based
- checks
- through
- over
- a
- hundred
- documented
- examples,
- the
- self-contained
- model
- (with
- special
- built-in
- matrix
- solvers
- and
- iteration
- algorithms)
- with
- a
- “plain
- English
- graphical
- user
- interface”
- has
- been
- optimized
- to
- run
- extremely
- fast
- –
- seconds
- per
- run
- as
- opposed
- to
- minutes
- and
- hours
- –
- and
- then
- automatically
- presents
- all
- electric
- and
- magnetic
- field
- results
- through
- integrated
- three-dimensional
- color
- graphics.In
- addition
- to
- state-of-the-art
- algorithms,
- basic
- "utility
- programs"
- are
- also
- developed,
- such
- as
- simple
- dipole
- methods,
- Biot-Savart
- large
- diameter
- models,
- nonlinear
- phase
- and
- amplitude
- interpolation
- algorithms,
- and
- so
- on.
- Incredibly
- useful
- to
- oilfield
- practitioners,
- this
- volume
- is
- a
- must-have
- for
- serious
- professionals
- in
- the
- field,
- and
- all
- the
- algorithms
- have
- undergone
- a
- laborious
- validation
- process
- with
- real
- use
- in
- the field.
