Reservoir: Production Analysis in the Eagle Ford Shale ─ Best Practices for Diagnostic Interpretations, Analysis, and Modeling

Speaker Dr. Dilhan Ilk
Reservoir Engineer DeGolyer and MacNaughton   Dilhan Ilk is a reservoir engineer at DeGolyer and MacNaughton in Dallas, Texas.  He holds B.Sc. degree from Istanbul Technical University, M.Sc. and Ph.D. degrees from Texas A&M University — all in Petroleum Engineering.   Dr. Ilk's interests include analysis of well test and ...

Reservoir Engineer DeGolyer and MacNaughton




 

Dilhan Ilk is a reservoir engineer at DeGolyer and MacNaughton in Dallas, Texas.  He holds B.Sc. degree from Istanbul Technical University, M.Sc. and Ph.D. degrees from Texas A&M University — all in Petroleum Engineering.

 

Dr. Ilk's interests include analysis of well test and production data, reservoir engineering, and inverse problems.  In particular, he focuses on well performance analysis and forecasting in unconventional reservoirs and has extensive practical experience in numerous unconventional oil and gas fields.  Dr. Ilk has made several contributions to petroleum engineering literature, and to date, he has prepared more than 30 articles in well test analysis, analysis/interpretation of production data, and general reservoir engineering.  Dilhan has also presented multiple industry short courses and regularly serves at SPE events focused on unconventional reservoirs.

Full Description
The Eagle Ford Shale is emerging as the foremost "liquids-rich" shale play in North America.  As such, the use of production data analysis in the Eagle Ford Shale has tremendous importance in:
 
●Determining well/reservoir properties;
●Establishing completion effectiveness; and
●Estimating future production.
 
The Eagle Ford Shale presents additional difficulty in the form of fluid behavior characterization.  Near-critical PVT behavior (as in the case of the Eagle Ford Shale) is an important component of well performance, which cannot be overlooked during analysis and modeling.  This talk addresses the common challenges encountered during production analysis and modeling of the Eagle Ford shale wells.  In particular, we will present the differences observed in production forecast due to characterization of the fluid.  This talk presents guidelines on how to perform diagnostics, analysis and forecast of the wells in the Eagle Ford shale considering the variability in fluid properties.  We present diagnostic interpretations of various wells (ranging from lower to higher initial yield values), and demonstrate model-based production analysis using non-linear numerical simulation for specific wells.  Furthermore, we investigate the long term yield behavior by running sensitivities to various drainage area and pressure drawdown cases.
Organizer Miles Palke