Pages : 1545
Size : 130 MB
Well test analysis is one of the cornerstones of reservoir analysis, as it is only through the
wells that we ever have the opportunity to make direct contact with the reservoir. Nonetheless,
the reservoir parameters of importance to us are not measurable directly, hence the need to
make an indirect interpretation of pressure and flow rate transients in the process we call well
test analysis. The need to solve the inverse problems inherent in well test analysis makes the
field one of the most intricate mathematically, while still dependent intimately on the practical
characteristics and accuracy of the pressure measurements themselves.
There are few in our field who accomplish the bridge between mathematical analysis and
engineering practicality as proficiently as George Stewart. He has worked centrally in the field of
well testing and well test analysis for much of his professional career, starting in the 1970s when
he was one of the founding faculty members at the very successful Department of Petroleum
Engineering at Heriot Watt University in Scotland. In addition to advising decades of student
research projects in well test analysis, George has been a key figure in the development of well
testing in an industrial context. He was the principal architect of one of the earliest and most
successful commercial well test analysis software packages, as well as a leading participant in the
development of the wireline formation tester class of downhole tools. Additionally, by extensive
active involvement in real reservoir development projects, George has accumulated a vast
personal encyclopedia of practical reservoir experience, which he is able to recall in great detail.
Whatever proposition may be discussed in a professional meeting, George has an example that
supports (or refutes) it.
In addition to being one of giants in the field, George Stewart’s personality is memorable
for his generosity of spirit. Here is a man who likes to do the job right, and to help others to do
the job right as well. Known throughout the industry for his good nature and generous advice,
George has shared his expertise and experience with many. This book is another manifestation
of his sharing.