Quick revision on analysis theory and concepts
As learnt in the FPTA (DDA I) course with particular reference
to long term data and pseudo steady state conditions typically found
in PA cases.
Using numerical models
Building a complex numerical model for use in PTA and PA including
irregular shapes, with multiple wells, compartments and geological
discontinuities and heterogeneity.
After a brief historical overview from empirical methods to modern
plots, the application with field data of the principal techniques:
Arps, Fetkovich, Blasingame, loglog, material balance, Pavg/Z,
Pwf/z, P vs Q plots and history matching/forecasting.
Permanent downhole gauges
Handling very large datasets, wavelet filtering, working with
incomplete and unplanned shut-ins. Processing multiple buildups
and monitoring changing parameters, such as skin, with time.
Setting up persistent links to data sources, issues and pitfalls,
Specifying data requirements.
Working on a library of data from permanent gauges facilitating
the analysis of multiple build-ups, single build-ups and production
profiles. Other single profiles using surface recording or intermittent
data will be analysed. PA and PTA examples will be handled
analytically and numerically as applicable.
The final afternoon is an opportunity to work with real data provided
by attendees or specific cases from the extensive KAPPA example