The only book available for the reservoir or petroleum engineer
covering formation testing--with algorithms for wireline and LWD
reservoir analysis developed for transient pressure, contamination
modeling, permeability, and pore pressure prediction.
Traditional well logging methods, such as resistivity, acoustic,
nuclear, and NMR, provide indirect information relating to fluid and
formation properties. However, the "formation tester" offered in
wireline and MWD/LWD operations is different. It collects actual
downhole fluid samples for surface analysis, and through pressure
transient analysis, provides direct measurements for pore pressure,
mobility, permeability, and anisotropy. These are vital to real-time
drilling safety, geosteering, hydraulic fracturing, and economic
analysis.
Methods for formation testing analysis, while commercially important and
accounting for a substantial part of service company profits, are
shrouded in secrecy. Many are poorly constructed, and because details
are not available, industry researchers are not able to improve on them.
Formation Testing explains conventional models and develops new, more
powerful algorithms for early-time analysis. More importantly, it
addresses a critical area in sampling related to "time required to pump
clean samples," using rigorous multiphase flow techniques. All of the
methods are explained in complete detail. Equations are offered for
users to incorporate in their own models, but, for those needing
immediate answers, convenient, easy-to-use software is available.
The lead author is a well-known petrophysicist with hands-on experience
at Schlumberger, Halliburton, BP Exploration, and other companies. His
work is used commercially at major oil service companies, and important
extensions to his formation testing models have been supported by
prestigious grants from the U.S. Department of Energy. His latest
collaboration with China National Offshore Oil Corporation marks an
important turning point, where advanced simulation models and hardware
are evolving side-by-side, defining a new generation of formation
testing logging instruments. Providing more than formulations and
solutions, this book offers a close look at "behind the scenes"
formation tester development, as the China National Offshore Oil
Corporation opens up its research, engineering, and manufacturing
facilities through a collection of never-before-seen photographs,
showing how formation testing tools are developed from start to finish.
