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Dynamic Data Analysis – v5.12.01 - © KAPPA 1988-2017
Chapte
r 3 – P ressure Transient Analysis (PTA) -p109/743
3.G
Operational considerations: Gathering data
It is absolutely necessary, before running a test, to really identify what the test objectives are
and which data should be acquired. Part of this work will be achieved with the test design.
However, in complement the engineers and operators on site will need to clearly know what
information is needed. The following table can be used as a guide, but the list is by no means
exhaustive.
Type of data
PTA
Production history
Yes
Pressure history
Yes
PVT, correlations, tables or constraints
Yes
r
w
Wellbore radius
Yes
Porosity
Yes
except
interference
h
Net vertical drained thickness
Yes
Field map with surrounding wells based
on seismic interpretation
Preferably
Production history of surrounding wells
Preferably
Complete completion log preferably with
a permeability log. Core and core
analysis
Preferably
Completion diagram and geometry,
deviation, perfos, gauge depths.
Preferably
All gauges, well test and operations
reports
Yes
Choice of flow correlations or availability
of lift curves from third party software
If pressure far
from sandface